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Dissertations / Theses on the topic 'Astronomy'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Woodard, Chelsea S. "Practical Astronomy." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc149687/.

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This dissertation is a collection of poems preceded by a critical preface. The preface considers Anthony’s Hecht’s long poem, “The Venetian Vespers,” and the ways in which the temporally unsettled situation of the poem’s speaker parallels a problem facing narrative-meditative poets. The preface is divided into two main sections that explore divisions of this larger conflict. The first discusses the origins and effects of the speaker’s uprootedness in time, and the ways in which he tries to both combat and embrace this dislocation by temporarily losing himself in the immediacy of observing visu

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2

de, Val Borro Miguel. "Studies of Gas Disks in Binary Systems." Doctoral thesis, Stockholms universitet, Institutionen för astronomi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8337.

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There are over 300 exoplanets detected through radial velocity surveys and photometric studies showing a tremendous variety of masses, compositions and orbital parameters. Understanding the way these planets formed and evolved within the circumstellar disks they were initially embedded in is a crucial issue. In the first part of this thesis we study the physical interaction between a gaseous protoplanetary disk and an embedded planet using numerical simulations. In order to trust the results from simulations it is important to compare different methods. However, the standard test problems for

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3

Kuutmann, Andrej. "Photo-evaporation of Globulettes : Numerical hydrodynamic studies of photo-evaporating low-mass globules in the Rosette Nebula." Thesis, Stockholm University, Department of Astronomy, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8354.

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<p>In this work, the long-term evolution of globulettes, low-mass globules found in H II regions, is studied through numerical hydrodynamic simulations. It has been proposed by Gahm et al. (2007) that these clouds may form free-floating planetary mass objects due to shock compression, caused by heating from the intense UV radiation of the central OB star cluster. To address this possibility, lifetimes are calculated for three different 3D simulated cases, similar to globulettes found in the Rosette Nebula. A plane-parallel approximation of the radiation field is used, as well as an inhomogeneo

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4

Negrete, Regagnon Pedro. "Bispectral imaging in astronomy." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307433.

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5

Belokurov, Vasily. "Variability surveys in astronomy." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401024.

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6

Price, Gareth James. "Microchannel plates in astronomy." Thesis, University of Leicester, 2001. http://hdl.handle.net/2381/8638.

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This thesis describes both round-pore microchannel plates (MCPs) used in energetic pho¬ton and particle detectors and their square-pore offspring, micropore optics (MPOs), used to focus x-rays. A Monte Carlo electron raytracing software package is described that is used to predict the energy and angular distribution of electrons (EDOE and ADOE) in a microchannel electron multiplier's output charge cloud, including saturated operation. The model is shown to agree with experimental evidence. The addition of a micromachined electrostatic lens to the end of a microchannel is modelled and found to

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7

Van, Tonder Vereese. "Beamforming for radio astronomy." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96126.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Beamforming is a technique used to combine signals from an array of antennas to effectively synthesize a single aperture and beam. In the Radio Astronomy community the technique is used to obtain a desirable beam pattern as well as to electronically point the beam of an array. Next generation radio telescopes such as the Square Kilometre Array (SKA) surpass current technology and will extensively make use of beamforming techniques. Various factors determine the output of a beamformer; however, given an array with a fixe

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8

Harris, Robert James. "Photonic spectroscopy in astronomy." Thesis, Durham University, 2015. http://etheses.dur.ac.uk/10975/.

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This thesis investigates photonic spectroscopy and its use in astronomy. In chapter two the theory associated with both astronomical spectroscopy and photonic spectroscopy is shown. The convergence of the two in the field of astrophotonics is discussed along with existing work in the field. In chapter three models of the Integrated Photonic Spectrograph are created and compared like-for-like with existing instruments. The results suggest that the Integrated Photonic Spectrograph will be similar to existing instruments in terms of size and will require more detector pixels for a full instrument

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9

Du, Buisson Lise. "Machine learning in astronomy." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15502.

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The search to find answers to the deepest questions we have about the Universe has fueled the collection of data for ever larger volumes of our cosmos. The field of supernova cosmology, for example, is seeing continuous development with upcoming surveys set to produce a vast amount of data that will require new statistical inference and machine learning techniques for processing and analysis. Distinguishing between real objects and artefacts is one of the first steps in any transient science pipeline and, currently, is still carried out by humans - often leading to hand scanners having to sort

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10

Utting, Muriel. "Astronomy in Western Australia." Thesis, Utting, Muriel (1993) Astronomy in Western Australia. Masters by Research thesis, Murdoch University, 1993. https://researchrepository.murdoch.edu.au/id/eprint/51548/.

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This thesis is devoted to a study of the origins and achievements of astronomers in Western Australia from 1829 to 1912. It addresses the questions about the role of astronomy in WA society, the reasons for the establishment of the Perth Observatory, and its achievements between 1896 and 1912. More widely, the thesis addresses the general question of the role of astronomy in our society and the contributions which astronomers have made to the development of Western Australia. The first Premier of Western Australia, Sir John Forrest, persuaded his Government to build an Observatory, promisi

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11

Rautiainen, J. (Joona). "2D spectroscopy in astronomy." Bachelor's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201905282219.

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Abstract. 2D-spectroscopy in astronomy is defined as a technique where a spatially resolved electromagnetic spectrum is obtained over a two-dimensional field. In this paper the very basic principles of spectroscopy are briefly covered starting from the single slit concept via the Huygens principle and the Fraunhofer diffraction. The basic concept of a grating-based spectrograph is described. The connection between observed spectra, the chemical footprints and the underlying physical properties of the systems are briefly covered. The main IFU techniques used in the field of integral field spect

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12

Carozzi, Tobia. "Radio waves in the ionosphere : Propagation, generation and detection." Doctoral thesis, Uppsala universitet, Institutionen för astronomi och rymdfysik, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1184.

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We discuss various topics concerning the propagation, generation, and detec-tionof high-frequency (HF) radio waves in the Earth's ionosphere. With re-gardsto propagation, we derive a full wave Hamiltonian and a polarization evo-lutionequation for electromagnetic waves in a cold, stratified magnetoplasma.With regards to generation, we will be concerned with three experiments con-ducted at the ionosphere- radio wave interaction research facilities at Sura, Rus-siaand Tromsø, Norway. These facilities operate high power HF transmittersthat can inject large amplitude electromagnetic waves into the

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13

Wilson, Richard Walter. "Synthesis imaging in optical astronomy." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281906.

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14

Junklewitz, Henrik. "Statistical inference in radio astronomy." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-177457.

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This thesis unifies several studies, which all are dedicated to the subject of statistical data analysis in radio astronomy and radio astrophysics. Radio astronomy, like astronomy as a whole, has undergone a remarkable development in the past twenty years in introducing new instruments and technologies. New telescopes like the upgraded VLA, LOFAR, or the SKA and its pathfinder missions offer unprecedented sensitivities, previously uncharted frequency domains and unmatched survey capabilities. Many of these have the potential to significantly advance the science of radio astrophysics a

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15

Corbett, Jason C. W. "Photonic crystal fibres in astronomy." Thesis, Durham University, 2006. http://etheses.dur.ac.uk/2661/.

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Photonic crystal fibres (PCF) are a new generation of optical fibre that guide light via a periodic air-silica, photonic crystal structure instead of the more traditional step change in refractive index associated with traditional fibre. Careful design of the photonic structure causes the fibres to behave in interesting new ways and one of main aims of this thesis is to begin the investigation of the uses of PCF's in astronomy. Step index and large mode area (LMA) PCF's are introduced in Chapters 2 and 3, respectively. Chapter 4 then deals with the instrumental simplifications associated with

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16

Brazler, Karen Tracy Susan. "TeV astronomy of millisecond pulsars." Thesis, Durham University, 1991. http://etheses.dur.ac.uk/5971/.

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This thesis is concerned with the detection of pulsed TeV γ-rays from millisecond pulsars. These stars appear to include some very efficient producers of high energy particles, but the mechanisms by which they produce TeV γ-rays are still a matter of debate. After an introductory section, there is a brief description of the principles used in the atmospheric Cerenkov technique. The design and operation of the University of Durham atmospheric Cerenkov telescopes are reviewed. The main analysis techniques used to search for periodic signals are then described. The effects on periodic signals of

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17

Clayton, Martin John. "New detector technologies for astronomy." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324635.

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18

Swinyard, Bruce Miles. "Polarimetry in gamma ray astronomy." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334541.

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19

Thompson, Nicholas Christopher. "RFI mitigation in radio astronomy." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86637.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Technical advances in electromagnetics, signal processing and processing power have led to a significant increase in sensitivity and accuracy in radio telescopes. With this increase in sensitivity, radio frequency interference (RFI) has become a much larger problem. The notable growth in wireless communication as well as self generated RFI has further escalated this problem. In order to utilise the full capabilities of modern radio telescopes, RFI mitigation is required on the captured signals. With the enormous data rate

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20

COONEY, DANIELLE NICOLE. "THE ASTRONOMY OF A DANDELION." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/612809.

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This thesis serves as a capstone of poetry for the University of Arizona Honors College Bachelor’s in Creative Writing. The Astronomy of a Dandelion is an exploration of the arts and sciences in conversation with one another, embodying both the personal and the technical throughout the manuscript. The originally proposed theme of astropoetry broadened into the use of astronomical imagery, metaphors, and other figurative language to describe neuroscientific issues of mental health, relationships of varying kinds, and the reconstruction of routine occurrences into something rather extra than ord

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21

Sen, Joydeep. "Astronomy in India, 1784-1876." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/34611/.

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This thesis aims to elucidate the changing forms of engagement between Europeans and Indians in relation to astronomy in India between 1784 and 1876. It seeks to trace the evolving contexts in which knowledge of astronomy was developed and to provide a nuanced characterisation of the resultant cognitive interface between Europeans and Indians, focusing in particular on Bengal and Bombay. The defining features of this period saw Europeans exploring the history of Indian astronomy, before establishing observatories and colleges to foster modern Western astronomy, while Indians turned to rethink

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22

Harness, Anthony D. "High Contrast Astronomy with Starshades." Thesis, University of Colorado at Boulder, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10245089.

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<p> One of the most important scientific discoveries to be had this century is the spectroscopic characterization of Earth-like exoplanets to determine the occurrence rate of worlds capable of supporting life and to potentially answer: are we alone in the universe? To accomplish these lofty goals requires an advancement in the technology to separate the overwhelming starlight from that of the exoplanet. I believe starshades are the key technology that will enable these discoveries within our lifetime. This dissertation work is a contribution to the advancement of starshade technology to put us

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23

Bihi, Aniisa, and Johanna Granström. "Astronomy Software Integration with OpenSpace." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-173569.

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This thesis aimed to create a messaging protocol for OpenSpace to interoperate with other astronomy software. The goal was to create a messaging standard that was not language-dependent and could be implemented by any astronomy software. To establish an asynchronous communication between OpenSpace and connected software, the Transmission Control Protocol (TCP), threading, and Peer-To-Peer (P2P) were the techniques mainly used. TCP was used to achieve reliable communication between software connected to the network. The enabling of two-way communication was solved by threading. P2P was used as

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24

O'Shaughnessy, Richard William Thorne Kip S. "Topics in gravitational wave astronomy /." Diss., Pasadena, Calif. : California Institute of Technology, 2004. http://resolver.caltech.edu/CaltechETD:etd-08052003-161044.

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25

Mitchell, Daniel Allan. "Interference Mitigation in Radio Astronomy." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/693.

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This thesis investigates techniques and algorithms for mitigating radio frequency interference (RFI) affecting radio astronomy observations. In the past radio astronomy has generally been performed in radio-quiet geographical locations and unused parts of the radio spectrum, including small protected frequency bands. The increasing use of the entire spectrum and global transmitters such as satellites are forcing the astronomy community to begin implementing active interference cancelling. The amount of harmful interference affecting observations will also increase as future instruments such as

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26

Mitchell, Daniel Allan. "Interference Mitigation in Radio Astronomy." University of Sydney. Physics, 2004. http://hdl.handle.net/2123/693.

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This thesis investigates techniques and algorithms for mitigating radio frequency interference (RFI) affecting radio astronomy observations. In the past radio astronomy has generally been performed in radio-quiet geographical locations and unused parts of the radio spectrum, including small protected frequency bands. The increasing use of the entire spectrum and global transmitters such as satellites are forcing the astronomy community to begin implementing active interference cancelling. The amount of harmful interference affecting observations will also increase as future instruments such as

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27

Kloosterman, Jenna Lynn. "Heterodyne Arrays for Terahertz Astronomy." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/319878.

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The clouds of gas and dust that constitute the Interstellar Medium (ISM) within the Milky Way and other galaxies can be studied through the spectral lines of the atoms and molecules. The ISM follows a lifecycle in which each of its phases can be traced through spectral lines in the Terahertz (THz) portion of the electromagnetic spectrum, loosely defined as 0.3 - 3 THz. Using the high spectral resolution afforded by heterodyne instruments, astronomers can potentially disentangle the large-scale structure and kinematics within these clouds. In order to study the ISM over large size scales, lar

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28

Ely, Joshua J. "Society and Science: Ancient Astronomy." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/honors/31.

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Astronomy is the oldest scientific field in human history. As such, it is linked heavily with Ancient History as a central part of understanding, scientific development and cultural appreciation in the world of antiquity. The goal of this thesis will be to investigate the importance of the ancient astronomers, their discoveries, the differences in cultural understandings of the universe due to environmental and political reasons, planets and the cosmos, and the impacts their discoveries had on the ancient world. Primary sources will be various writings and documents by ancient astronomers and

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29

Elmqvist, Söderlund Inga. "Taking possession of astronomy : Frontispieces and illustrated title pages in 17th-century books on astronomy." Doctoral thesis, Stockholms universitet, Konstvetenskapliga institutionen, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-38873.

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The thesis is a survey of 291 frontispieces and illustrated title pages in European books on astronomy from the 17th century. It is a quantitative and qualitative survey of how motifs are related to consumption, identification and display. Elements in the motifs related to factual content as opposed to those aimed to raise the perceived value of astronomy are distinguished. The quantitative study shows that astronomical phenomena (90 per cent) and scientific instruments (62 per cent, or as much as 86 per cent if only titles with illustrations occupying an entire page are considered) are the mo

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30

Fisher, John Roger. "Astronomy and patronage in Hanoverian England : the work of James Bradley, third Astronomer Royal of England." Thesis, Imperial College London, 2004. http://hdl.handle.net/10044/1/8318.

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31

Gunnarsson, Marcus. "Gas Production in Distant Comets." Doctoral thesis, Uppsala University, The Uppsala Astronomical Observatory, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2148.

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<p>Molecular spectroscopy at radio wavelengths is a tool well suited for studying the composition and outgassing kinematics of cometary comae. This is particularly true for distant comets, i.e. comets at heliocentric distances greater than a few AU, where the excitation of molecules is inefficient other than for rotational energy levels. At these distances, water sublimation is inefficient, and cometary activity is dominated by outgassing of carbon monoxide.</p><p>An observing campaign is presented, where the millimeter-wave emission from CO in comet 29P/Schwassmann-Wachmann 1 has been studied

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32

Fidler, Chuck Gary. "Preservice elementary teachers learning of astronomy." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2009. http://wwwlib.umi.com/cr/syr/main.

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33

Norton, Andrew John. "Galactic X-ray astronomy with EXOSAT." Thesis, University of Leicester, 1988. http://hdl.handle.net/2381/35751.

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The work presented in this thesis covers two topics: a study of Intermediate Polars (non- synchronously rotating magnetic cataclysmic variables) and a survey of the Galactic plane, both carried out with the EXOSAT observatory. The first part of the thesis describes a study of all the Intermediate Polars observed by EXOSAT. The X-ray light curves and spectra of each source are considered, with particular emphasis on the spin modulation. By treating the Intermediate Polars as an homogenous set of objects, a model for the accretion flow and emission region is developed in which the modulation is

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34

Bock, Douglas Carl-Johan. "Wide Field Aperture Synthesis Radio Astronomy." University of Sydney. Physics, 1998. http://hdl.handle.net/2123/377.

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This thesis is focussed on the Molonglo Observatory Synthesis Telescope (MOST), reporting on two primary areas of investigation. Firstly, it describes the recent upgrade of the MOST to perform an imaging survey of the southern sky. Secondly, it presents a MOST survey of the Vela supernova remnant and follow-up multiwavelength studies. The MOST Wide Field upgrade is the most significant instrumental upgrade of the telescope since observations began in 1981. It has made possible the nightly observation of fields with area ~5 square degrees, while retaining the operating frequency of

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35

Gom, Bradley Gustav. "A cryogenic detector for submillimetre astronomy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0026/MQ49144.pdf.

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36

Smith, Graeme John. "An infrared radiometer for millimeter astronomy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq61045.pdf.

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37

Gom, Bradley Gustav, and University of Lethbridge Faculty of Arts and Science. "A cryogenic detector for submillimetre astronomy." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 1999, 1999. http://hdl.handle.net/10133/102.

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Over the last several years, a submillimetre astronomical polarizing Fourier Transform Spectrometer (FTS) has been developed for use at the James Clerk Maxwell Telescope (JCMT) located atop Mauna Kea, Hawaii. A new liquid3 He cooled dual polarization detector system has been carefully designed for use with this FTS to eliminate noise problems encountered with UKT14, the JCMT facility bolometric detector. The objective of this thesis is to evaluate and optimize the performance of the new detector system. The design of the detector system is discussed, and the noise performance of the system is

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38

Smith, Graeme John, and University of Lethbridge Faculty of Arts and Science. "An infrared radiometer for millimeter astronomy." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2000, 2000. http://hdl.handle.net/10133/122.

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The performance of existing and planned millimeter and submillimeter astronomical arrays is limited by fluctuations in the amount of atmosperic water vapor along the atenna's line of sight. Correcting the resulting phase distortion of the received signals is seen as a significant technological challenge. Measurements of the variation in the line-of-sight water vapor abundance at the level of 1 micron precipitable water vapor on a time scale of 1 second and at arbitrary antenna positions are required. This thesis describes the design of, and preliminary results obtained with, a water vapor mon

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39

Kennedy, Paul Robert. "Superconducting devices for millimetre-wavelength astronomy." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386169.

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40

Martindale, Adrian. "Novel X-ray instrumentation for astronomy." Thesis, University of Leicester, 2008. http://hdl.handle.net/2381/3964.

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This thesis describes experimental and theoretical work and technology development directed towards the next generation of X-ray astronomical instrumentation. A great heritage exists of instruments which are sensitive to X-rays which operate on board space based observatories. The next generation of such telescopes will take advantage of the rapid technology advancement of the last four decades of more accurately observe the universe and give greater insight into the objects within it, how they formed and how they will evolve. Chapters 2 and 3 describe the investigation of extremely high speed

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Butcher, Jacqueline Anne. "Extragalactic X-ray astronomy with GINGA." Thesis, University of Leicester, 1994. http://hdl.handle.net/2381/35850.

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42

Ngongoni, Chipo Nancy. "Neural cross-correlation for radio astronomy." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11427.

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Includes abstract.<br>Includes bibliographical references (leaves 56-62).<br>Correlation engines are essential elements of most signal processing systems. Areas of applicability include image processing, speech synthesis and analysis, high energy physics, wireless and mobile communication systems, spread spectrum communication systems and even prosthetics. Finding cost effective and computationally less intensive engines is the thrust of most research. Neural networks have also been used as aids in making complex tasks relatively easy to process.

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Manley, Jason Ryan. "A scalable packetised radio astronomy imager." Doctoral thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15573.

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Includes bibliographical references<br>Modern radio astronomy telescopes the world over require digital back-ends. The complexity of these systems depends on many site-specific factors, including the number of antennas, beams and frequency channels and the bandwidth to be processed. With the increasing popularity for ever larger interferometric arrays, the processing requirements for these back-ends have increased significantly. While the techniques for building these back-ends are well understood, every installation typically still takes many years to develop as the instruments use highly spe

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Rubbo, Louis Joseph. "Gravitational wave astronomy using spaceborne detectors." Diss., Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/rubbo/RubboL0805.pdf.

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Bock, Douglas Carl-Johan. "Wide Field Aperture Synthesis Radio Astronomy." Thesis, The University of Sydney, 1997. http://hdl.handle.net/2123/377.

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This thesis is focussed on the Molonglo Observatory Synthesis Telescope (MOST), reporting on two primary areas of investigation. Firstly, it describes the recent upgrade of the MOST to perform an imaging survey of the southern sky. Secondly, it presents a MOST survey of the Vela supernova remnant and follow-up multiwavelength studies. The MOST Wide Field upgrade is the most significant instrumental upgrade of the telescope since observations began in 1981. It has made possible the nightly observation of fields with area ~5 square degrees, while retaining the operating frequency of

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46

Lindley, Emma. "Multicore fibre Bragg gratings for astronomy." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/16682.

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Astrophotonics is the discipline of applying photonic technology in instrumentation to address problems in astronomy and astrophysics. Photonic devices known as fibre Bragg gratings (FBGs) can be used as highly selective filters for removal of unwanted light prior to dispersion in a spectrograph. It has been shown that FBGs are well suited to the problem of removing atmospheric molecular emission lines from ground-based near- infrared observations. This thesis describes the development of a new generation of FBGs for this purpose, inscribed within multi-core fibres (MCFs) which contain multipl

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47

Lesser, Michael Patrick. "Charge-coupled device optimizations for astronomy." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184387.

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In the past decade, charge-coupled devices (CCDs) have rapidly become the astronomical imaging detector of choice for the visible and near-IR spectral regions. There are, however, several problems which have greatly reduced the availability of sufficient quality CCDs to the astronomical community. These include the low blue and ultraviolet quantum efficiency of thick devices, the lack of properly thinned devices, warped imaging surfaces, interference fringing, and the small size of the detectors themselves compared to telescope focal planes. This dissertation presents methods which can be used

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48

Chlench, Kathrin. "Johannes von Gmunden deutsch : der Wiener Codex 3055 : deutsche Texte des Corpus astronomicum aus dem Umkreis von Johannes von Gmunden /." Thesis, Wien : Fassbaender, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=2942867&prov=M&dok_var=1&dok_ext=htm.

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Ringvall, Jonas, and Malin Kvist. "Jämförbarhet vs. innebörd och form." Thesis, Uppsala University, Department of Business Studies, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8988.

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de, Cruz Pérez Javier. "Implications of Dynamical Dark Energy in the expansion of the Universe and the Structure Formation." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/671792.

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En aquesta tesi s’estudien diferents models cosmològics, tots ells caracteritzats per considerar, de manera efectiva, una lleu evolució temporal de l’Energia Fosca, en contrast amb l’actual model estàndard de la cosmologia. El terme Energia Fosca s’utilitza per fer referència a una misteriosa forma d’energia que sembla impregnar tots els racons del Univers i que provoca que les galàxies s’allunyin les unes de les altres. El ritme predit d’expansió del Univers varia d’un model a un altre així com la quantitat d’estructura observada i la distribució d’aquesta. Degut al bon mome

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