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Journal articles on the topic 'Astronomia X'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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1

Lopes, C. E. F., and M. G. Pereira. "Astronomia no Infravermelho de Estrelas Variáveis." Sitientibus Série Ciências Físicas 1 (December 20, 2005): 52–58. http://dx.doi.org/10.13102/sscf.v1i.5254.

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Este trabalho tem por objetivo fazer um estudo fotométrico de estrelas variáveis utilizando dados fotométricos do projeto 2 Micron All Sky Survey. Foram analisados dados de fotometria infravermelho nas bandas JHKs de cinco tipos de estrelas variáveis: Wolf Rayet, RS Canum Venaticorum, Sistemas Binários de Raios-X, Fontes Super Soft e Estrelas Simbióticas. As materializações de diagramas Cor-Cor permitiram um estudo das propriedades fotométricas infravermelho intrínsecas destas fontes, e assim obteve-se uma ferramenta para identificação de alvos para estudos mais detalhados a serem realizados p

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Lopes, C. E. F., and M. G. Pereira. "Astronomia no Infravermelho de Estrelas Variáveis." Sitientibus Série Ciências Físicas 1 (December 20, 2005): 52. http://dx.doi.org/10.13102/sscf.v1i0.5254.

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Este trabalho tem por objetivo fazer um estudo fotométrico de estrelas variáveis utilizando dados fotométricos do projeto 2 Micron All Sky Survey. Foram analisados dados de fotometria infravermelho nas bandas JHKs de cinco tipos de estrelas variáveis: Wolf Rayet, RS Canum Venaticorum, Sistemas Binários de Raios-X, Fontes Super Soft e Estrelas Simbióticas. As materializações de diagramas Cor-Cor permitiram um estudo das propriedades fotométricas infravermelho intrínsecas destas fontes, eassim obteve-se uma ferramenta para identificação de alvos para estudos mais detalhados a serem realizados po

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3

Pereira, Ana Carolina Costa, Antonia Naiara de Sousa Batista, and Isabelle Coelho da Silva. "A matemática incorporada na construção do quadrante descrito na obra Libros del Saber de Astronomía." Revemat: Revista Eletrônica de Educação Matemática 12, no. 1 (2017): 173. http://dx.doi.org/10.5007/1981-1322.2017v12n1p173.

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Dentre as várias alternativas de inserir a história da matemática no ensino, vislumbramos os instrumentos matemáticos, em especial, o quadrante em um quarto de círculo, ou quadrante náutico, utilizado na astronomia de posição, como um recurso que incorpora, manipula e dissemina diversos conceitos. Dessa forma, o artigo tem o intuito de apresentar a matemática presente na construção do quadrante na busca por interfaces que permitam a articulação de conceitos matemáticos em sala de aula. A construção do quadrante está baseada na obra Libros del saber de Astronomía compilado pelo Rei D. Afonso X

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4

SIVO, Francesca. "DONNE FRAGILI COME BROCCHE. LEZIONI DI DIDATTICA SPIRITUALE E SOCIALE NEL MEDIOEVO." Classica et Christiana 19, no. 2 (2024): 813–31. http://dx.doi.org/10.47743/cetc-2024-19.2.813.

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Il contributo prende in considerazione le opere di Dhuoda (IX sec.) e di Rosvita di Gandersheim (X sec.): entrambe, sia pure per ragioni differenti, ricorrono alla scrittura quale strumento privilegiato per far sentire la propria voce. In una società tradizionalmente misogina, l’uso della penna rappresenta anche l’occasione per impartire lezioni in cui un’autentica professione di fede si coniuga con l’insegnamento di arti matematiche. In quanto dono di Dio, le artes liberales, e in particolare quelle del Quadrivio (aritmetica, geometria, musica e astronomia), rappresentano infatti la base per

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5

Parmar, A. N., M. Bavdaz, F. Favata, et al. "Early Results from the Low-Energy Concentrator Spectrometer on-board BeppoSAX." Symposium - International Astronomical Union 188 (1998): 71–74. http://dx.doi.org/10.1017/s0074180900114457.

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SAX, an acronym for “Satellite Italiano per Astronomia a raggi X”, now renamed “BeppoSAX” in honor of Giuseppe Occhialini, is the first X-ray mission sensitive in the very broad energy range between 0.1 and 300 keV (Boella et al. 1997a). The Narrow Field Instruments (NFI) have approximately 1° fields of view and consist of the imaging low- and medium-energy concentrator spectrometers (LECS, 0.1-10 keV, Parmar et al. 1997; and MECS, 1-10 keV, Boella et al. 1997b), and the non-imaging high pressure gas scintillation proportional counter (HPGSPC, 3-120 keV, Manzo et al. 1997) and Phoswich detecto

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6

De Melo, Enaldo Vieira, and Elton Casado Fireman. "Ensino e aprendizagem de funções trigonométricas por meio do software Geogebra aliado à Modelagem Matemática." Revista de Ensino de Ciências e Matemática 7, no. 5 (2016): 12–30. http://dx.doi.org/10.26843/rencima.v7i5.1182.

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A presente pesquisa qualitativa, delineado por um estudo de caso com pesquisa participante, analisou as contribuições da utilização do software Geogebra aliado à Modelagem Matemática no ensino-aprendizagem das funções trigonométricas seno e cosseno, à luz da Aprendizagem Significativa. O estudo foi aplicado a 18 alunos do segundo ano do Ensino Médio de uma escola pública do município de Marechal Deodoro, Alagoas. A investigação foi regida por uma Sequência Didática de Ensino, produto desta dissertação, na qual foi trabalhado o software junto com a Modelagem Matemática de fenômenos periódicos.

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7

Campos, Guadalupe Do Nascimento, Marcus Granato, Antonieta Middea, and Ricardo Tadeu Lopes. "ARQUEOMETRIA APLICADA À CONSERVAÇÃO DO PATRIMÔNIO ARQUEOLÓGICO METÁLICO: UM ESTUDO DE CASO DO SÍTIO FUNERÁRIO DE SÃO GONÇALO GARCIA, RIO DE JANEIRO." Cadernos do LEPAARQ (UFPEL) 15, no. 30 (2018): 290. http://dx.doi.org/10.15210/lepaarq.v15i30.13620.

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O presente trabalho apresenta alguns dos resultados obtidos no âmbito do projeto de pesquisa Conservação e Caracterização Microanalítica de Objetos Arqueológicos Metálicos, desenvolvido no Museu de Astronomia e Ciências Afins - MAST. O projeto tem como objetivo principal estabelecer metodologias de caracterização e conservação do patrimônio arqueológico metálico. Os artefatos selecionados para o estudo de caso são provenientes do Sítio Funerário da Igreja São Gonçalo Garcia (região central do Rio de Janeiro), relacionados aos séculos XVIII e XIX. Para os exames arqueométricos, foram empregadas

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LIPPI, DONATELLA. "ASTRONOMIA B. STEPHENSON, M. BOLT, A. F. FRIEDMAN, The universe unveiled. Instruments and Images through History, Cambridge, Cambridge Univ. Press 2000, 152 pp., (ISBN 0-521-79143-X)." Nuncius 16, no. 1 (2001): 447–48. http://dx.doi.org/10.1163/221058701x00301.

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9

Ivorra, Adolfo. "Manlio SODI (ed.), Astronomia e culto. Risposta a domande di attualità, Padova: Edizioni Messaggero Padova («Instant book»), 2009, 151 pp., 11 x 17, ISBN 978-88-250-2145-5." Scripta Theologica 43, no. 1 (2015): 243. http://dx.doi.org/10.15581/006.43.3336.

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10

Lemoine, Martin, and Guy Perrin. "Les X astronomes." Bulletin de la Sabix, no. 35 (January 1, 2004): 44–49. http://dx.doi.org/10.4000/sabix.443.

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11

Palhares, Dario, and Íris Almeida dos Santos. "Astronomic Bioethics: Terraforming X Planetary protection." Bangladesh Journal of Bioethics 8, no. 2 (2017): 1–10. http://dx.doi.org/10.3329/bioethics.v8i2.34474.

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A hard difficulty in Astrobiology is the precise definition of what life is. All living beings have a cellular structure, so it is not possible to have a broader concept of life hence the search for extraterrestrial life is restricted to extraterrestrial cells. Earth is an astronomical rarity because it is difficult for a planet to present liquid water on the surface. Two antagonistic bioethical principles arise: planetary protection and terraforming. Planetary protection is based on the fear of interplanetary cross-infection and possible ecological damages caused by alien living beings. Terra

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12

Izquierdo Benito, Ricardo. "Alfonso X: un rey ante la historia." Vínculos de Historia Revista del Departamento de Historia de la Universidad de Castilla-La Mancha, no. 11 (June 22, 2022): 533–47. http://dx.doi.org/10.18239/vdh_2022.11.26.

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RESUMENEl año 2021 se ha cumplido el VIII centenario del nacimiento del rey Alfonso X, acontecimiento que tuvo lugar en la ciudad de Toledo el 23 de noviembre de 1221. Nos encontramos ante la figura de uno de los reyes medievales hispanos de mayor relevancia, tanto por las ideas políticas innovadoras que intentó aplicar, aunque no lo consiguió, como, sobre todo, por la gran actividad intelectual que bajo su patronazgo se llevó entonces a cabo y que le ha merecido el apelativo de Sabio como es conocido. Son muchos los historiadores que, desde distintas ópticas (el Arte, el Derecho, la Astronomí

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13

Bradfield, Philip. "X-ceedingly good." Physics World 37, no. 5 (2024): 29iii. http://dx.doi.org/10.1088/2058-7058/37/05/26.

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14

Hart, Michael. "A novel astronomical X-ray polarimeter." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 316, no. 2-3 (1992): 416–21. http://dx.doi.org/10.1016/0168-9002(92)90929-x.

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15

Wolk, Scott J., and Bradley D. Spitzbart. "ANCHORS: an Archive of Chandra Observations of Regions of Star formation." Proceedings of the International Astronomical Union 2, no. 14 (2006): 587. http://dx.doi.org/10.1017/s1743921307011854.

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ANCHORS is a web based archive of all the point sources observed during Chandra observations of regions of star formation. It is designed to aid both the X-ray astronomer with a desire to compare X-ray datasets and the star formation astronomer wishing to compare stars across the spectrum. For some 50 Chandra fields, yielding 10000+ sources, the database contains X-ray source properties including position, net count rates, flux, hardness ratios, lightcurve statistics and plots.

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16

Diaz-Merced, Wanda L., Robert M. Candey, Nancy Brickhouse, et al. "Sonification of Astronomical Data." Proceedings of the International Astronomical Union 7, S285 (2011): 133–36. http://dx.doi.org/10.1017/s1743921312000440.

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AbstractThis document presents Java-based software called xSonify that uses a sonification technique (the adaptation of sound to convey information) to promote discovery in astronomical data. The prototype is designed to analyze two-dimensional data, such as time-series data. We demonstrate the utility of the sonification technique with examples applied to X-ray astronomy and solar data. We have identified frequencies in the Chandra X-Ray observations of EX Hya, a cataclysmic variable of the intermediate polar type. In another example we study the impact of a major solar flare, with its associ

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17

Hanisch, Robert J., and George H. Jacoby. "Astronomical Data Analysis Software and Systems X." Publications of the Astronomical Society of the Pacific 113, no. 784 (2001): 772–73. http://dx.doi.org/10.1086/320803.

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18

Christensen, Finn E. "Test facility for astronomical x-ray optics." Optical Engineering 29, no. 8 (1990): 942. http://dx.doi.org/10.1117/12.55680.

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19

Pounds, K. A. "Astronomical X-ray spectroscopy—ten years on." Vistas in Astronomy 33 (January 1990): 83–103. http://dx.doi.org/10.1016/0083-6656(90)90039-b.

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20

HOLT, STEPHEN S. "New Frontiers in X-Ray Astronomical Spectroscopy." Annals of the New York Academy of Sciences 655, no. 1 Frontiers in (1992): 263–77. http://dx.doi.org/10.1111/j.1749-6632.1992.tb17076.x.

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21

Bannister, N. P., K. D. M. Harris, S. P. Collins, et al. "Dichroic Filters For Astronomical X-Ray Polarimetry." Experimental Astronomy 21, no. 1 (2006): 1–12. http://dx.doi.org/10.1007/s10686-006-9054-1.

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22

Rossetti, Matteo. "Lettori degli 'Astronomica' di Manilio tra X e XII secolo." Interfaces: A Journal of Medieval European Literatures, no. 12 (December 7, 2024): 55–76. https://doi.org/10.54103/interfaces-12-05.

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Manilius' Astronomica, a didactic poem composed in the 1st century CE, remained forgotten for a long time, at least until the end of the 10th century. This paper, therefore, aims to investigate the earliest and uncertain evidence of the medieval reception of the text, beginning with its possible rediscovery. In the first part, the article reexamines the textual evidence of the possible rediscovery of the poem by Gerbert of Aurillac in the library of Bobbio (epistles 8 and 130 Riché–Callou). The second part, however, demonstrates that the interest in Manilius' poem shown by Gerbert of Aurillac

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23

Petre, R. "Thin Shell, Segmented X-Ray Mirrors." X-Ray Optics and Instrumentation 2010 (February 9, 2010): 1–16. http://dx.doi.org/10.1155/2010/412323.

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Thin foil mirrors were introduced as a means of achieving high throughput in an X-ray astronomical imaging system in applications for which high angular resolution was not necessary. Since their introduction, their high filling factor, modest mass, relative ease of construction, and modest cost have led to their use in numerous X-ray observatories, including the Broad Band X-ray Telescope, ASCA, and Suzaku. The introduction of key innovations, including epoxy replicated surfaces, multilayer coatings, and glass mirror substrates, has led to performance improvements and in their becoming widely

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24

Gregory, J. A., B. E. Burke, B. B. Kosicki, and R. K. Reich. "Developments in X-ray and astronomical CCD imagers." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 436, no. 1-2 (1999): 1–8. http://dx.doi.org/10.1016/s0168-9002(99)00592-6.

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25

Nakajima, Hiroshi. "Astronomical imaging with the X-ray observatory Hitomi." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 873 (November 2017): 16–20. http://dx.doi.org/10.1016/j.nima.2017.02.023.

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26

Sarra, P. F., and G. F. Bignami. "CCD astronomical applications for X-ray temporal studies." Experimental Astronomy 2, no. 6 (1992): 357–75. http://dx.doi.org/10.1007/bf00395986.

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27

Capitaine, N., and B. Guinot. "Astronomical Units and Constants in a Relativistic Framework." Highlights of Astronomy 10 (1995): 201. http://dx.doi.org/10.1017/s1539299600010972.

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In 1991, IAU Resolution A4 introduced General Relativity as the theoretical background for defining celestial space-time reference sytems. It is now essential that units and constants used in dynamical astronomy be defined in the same framework, at least in a manner which is compatible with the minimum degree of approximation of the metrics given in Resolution A4.This resolution states that astronomical constants and quantities should be expressed in SI units, but does not consider the use of astronomical units. We should first evaluate the usefulness of maintaining the system of astronomical

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28

Alifah, Tansa, M. Iqbal Qeis, and Yuni Zaharani. "Perancangan buku ilustrasi serial mengenai benda luar angkasa sebagai media edukasi alam." Cipta 2, no. 3 (2024): 348–56. http://dx.doi.org/10.30998/cipta.v2i3.2800.

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Penyebaran mitos dan hoaks terkait astronomi kerap terjadi, menimbulkan kepanikan dan kekhawatiran masyarakat. Pada tahun 2015, beredar kabar asteroid terbesar akan menabrak bumi antara tanggal 15-28 September 2015 yang akan menyebabkan kiamat (Walidah, 2017: 327). Kurangnya edukasi dan pengetahuan dasar masyarakat tentang astronomi menyebabkan mudahnya konsumsi serta penyebaran mitos dan hoaks. Tujuan penelitian adalah merancang Buku Ilustrasi Serial Mengenai Benda Luar Angkasa sebagai Media Edukasi Alam untuk mengenalkan benda-benda langit kepada anak-anak, dan mencegah misinformasi tentang

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29

Kumar Parui, Ramen. "New Astronomy with the Swift Observatory: Discovery of Cosmic Baby, Supernova explosion and other Extremes." Open Access Journal of Astronomy 2, no. 2 (2024): 1–11. http://dx.doi.org/10.23880/oaja-16000118.

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Analysis of Swift observed data offer us a new concept on supernova explosion and gamma ray bursts moulding on our old ideas. Swift space telescope observatory was launched in 2004 mainly for observation of gamma ray bursts (GRBs) with an operational active duration of two years. According to the new picture of supernova explosion — firstly shocks break out with the emission of x-rays and then exploding will occur while conventional idea was a new born neutron star compresses, rebounds and then triggers a shock wave that finally blows the star’s gaseous outer layers. Another invaluable discove

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30

Samsó, Julio. "Ibn Isḥāq and the Alfonsine Tables". Journal for the History of Astronomy 50, № 3 (2019): 360–65. http://dx.doi.org/10.1177/0021828619829242.

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This paper seeks to show that astronomical tables ( zījes) belonging to the tradition of Ibn Isḥāq al-Tunisī (fl. 1193–1222) were available to the astronomers in the service of King Alfonso X (r. 1252–1284), who used them both in their astronomical works written in Castilian and for the production of the Parisian Alfonsine Tables which are, nowadays, extant in Latin.

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31

Watarai, H., K. Misaki, Y. Terashima, and T. Nakagawa. "ASCA Observations of Luminous Infrared Starburst Galaxies." Symposium - International Astronomical Union 186 (1999): 287. http://dx.doi.org/10.1017/s0074180900112847.

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We present recent results of X-ray observations of two luminous infrared galaxies, NGC3690+IC694 (Arp299) and NGC1614 obtained by the Japanese X-ray astronomical satellite ASCA. Both galaxies have quite high infrared luminosity (> 1011L⊙) and strong evidence of merger.

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32

Corral-Bustamante, R. Leticia. "Astrophysics of X-Ray Binary Spectra." Defect and Diffusion Forum 429 (December 12, 2023): 45–70. http://dx.doi.org/10.4028/p-sp3c6x.

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In view of the fact that X-ray sources present characteristic spectra that make them unique, the spectral fitting technique has proven to play a fundamental role through the use of models that make it possible to reproduce the observed spectrum, thus making it possible to characterize the type of source that gave rise to it. A tool of paramount importance, among others that are currently gaining ground, is the XSPEC software, which is a solid and stable spectral fitting package that allows us to conduct scientific work with high standards of rigor in the analysis of data from astronomical obje

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33

Weisskopf, M. C. "The Advanced X-Ray Astrophysics Facility." International Astronomical Union Colloquium 123 (1990): 71–79. http://dx.doi.org/10.1017/s0252921100076922.

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AbstractThe Advanced X-Ray Astrophysics Facility (AXAF) is a remarkable and unique scientific endeavor. It will be a space-based earth orbiting X-ray observatory, designed to address fundamental questions in astronomy and astrophysics. It is remarkable in that it represents enormous advances in observational capability. It is unique in that it will be the best means of obtaining high resolution, spectrally resolved X-ray images of astronomical objects for the rest of this century and beyond.

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34

Li, W., J. B. Lu, X. F. Zhao, W. W. Cui, Y. J. Yang, and Y. Chen. "Periodic sampling and count rate correction of the low energy X-ray telescope on board the Insight- Hard X-ray modulation telescope." Journal of Instrumentation 19, no. 05 (2024): P05013. http://dx.doi.org/10.1088/1748-0221/19/05/p05013.

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Abstract The Low Energy X-ray Telescope (LE) is an important instrument of the Insight-Hard X-ray Modulation Telescope (Insight-HXMT), which performs scanning and point observation in the soft X-ray energy band (0.7–13 keV). Since its launch in 2017, it has conducted a large number of scientific observations and achieved significant astronomical discoveries. LE is composed of three detector boxes and an electronic control box. The data acquisition system of LE is designed to use periodic sampling, which solves the problem of unstable noise peaks. Data loss may occur when observing X-ray bursts

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35

Weisskopf, Martin. "An Overview of X-Ray Polarimetry of Astronomical Sources." Galaxies 6, no. 1 (2018): 33. http://dx.doi.org/10.3390/galaxies6010033.

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Marin, Frédéric. "The Growth of Interest in Astronomical X-Ray Polarimetry." Galaxies 6, no. 1 (2018): 38. http://dx.doi.org/10.3390/galaxies6010038.

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37

La Monaca, A., E. Costa, P. Soffitta, et al. "A new photoelectron imager for X-ray astronomical polarimetry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 416, no. 2-3 (1998): 267–77. http://dx.doi.org/10.1016/s0168-9002(98)00486-0.

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38

Ziaeepour, H., and S. Rosen. "Statistical algorithms for identification of astronomical X-ray sources." Astronomische Nachrichten 329, no. 1 (2008): 84–105. http://dx.doi.org/10.1002/asna.200610821.

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39

Green, Paul J., Martin Ward, Scott F. Anderson, Bruce Margon, M. H. K. Degrijp, and George K. Miley. "Infrared-Selected “Warm” Galaxies Observed in X-rays." Symposium - International Astronomical Union 134 (1989): 420–21. http://dx.doi.org/10.1017/s0074180900141567.

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The Infrared Astronomical Satellite (IRAS) has detected many galaxies in the infrared (IR), most of which have fairly steep 25μ to 60μ spectra. Many quasars and active galaxies exhibit a significantly flatter spectrum in the infrared. Several studies, for example, DeGrijp et al. (1985) used this characteristic to select a subsample of “warm” objects from the IRAS PSC (1985).

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40

Kaneda, H., T. Onaka, T. Kitayama, Y. Okada, and I. Sakon. "Mid- and Far-Infrared Study of X-ray-emitting Dusty Elliptical Galaxies." Proceedings of the International Astronomical Union 2, S235 (2006): 211. http://dx.doi.org/10.1017/s174392130600617x.

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41

Liga, Shanti Maria, Sean R. Kavanagh, Aron Walsh, David O. Scanlon, and Gerasimos Konstantatos. "Mixed-Cation Vacancy-Ordered Perovskites (Cs2Ti1-x Sn x X6; X = I or Br): Low-Temperature Miscibility, Additivity, and Tunable Stability." Journal of Physical Chemistry C 127, no. 43 (2023): 1399–21409. https://doi.org/10.1021/acs.jpcc.3c05204.

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Lead toxicity and poor stability under operating conditions are major drawbacks that impede the widespread commercialization of metal-halide perovskite solar cells. Ti(IV) has been considered as an alternative species to replace Pb(II) because it is relatively nontoxic and abundant and its perovskite-like compounds have demonstrated promising performance when applied in solar cells (eta > 3%), photocatalysts, and nonlinear optical applications. Yet, Ti(IV) perovskites show instability in air, hindering their use. On the other hand, Sn(IV) has a similar cationic radius to Ti(IV), adopting th

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42

Boutsikas, Efrosyni. "“Road to the Stars” Oxford XI." Journal of Skyscape Archaeology 4, no. 1 (2018): 134–37. http://dx.doi.org/10.1558/jsa.36096.

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43

Owens, Alan, Michael Denby, Alan Wells, Adam Keay, Dale E. Graessle, and Richard L. Blake. "The Effect of X‐Ray Absorption Fine Structure in Soft X‐Ray Astronomical Telescopes." Astrophysical Journal 476, no. 2 (1997): 924–31. http://dx.doi.org/10.1086/303628.

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44

Khalil, M., M. Said, H. Osman, et al. "Big data in astronomy: from evolution to revolution." International Journal of Advanced Astronomy 7, no. 1 (2019): 11. http://dx.doi.org/10.14419/ijaa.v7i1.18029.

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Big data is pushing astronomy in a new direction. Massive amounts of astronomical big data produced by the new generations of powerful instruments and simulations are exponentially gathered every day. Big data like astronomical images, infrared, microwave, ultraviolet, X-rays and gamma generated by stars, galaxies and black holes are observed by the new generations of space telescopes. It may take years to uncover the hidden signals in such data that may already hold answers to some of the fundamental questions of the universe we’re seeking. In this paper, we attempt to present a short review

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Hughes, David. "Astronomical affairs." New Scientist 194, no. 2601 (2007): 50. http://dx.doi.org/10.1016/s0262-4079(07)61077-x.

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Hang, Heng-Rong, Zhi-Yun Zang, Shan-Zhao Liu, et al. "Balloon X-ray Astronomical Observations: a China-Japan Collaborative Transoceanic Flight." Publications of the Astronomical Society of Australia 9, no. 1 (1991): 111–12. http://dx.doi.org/10.1017/s132335800002511x.

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Battistini, P. "Astronomical Catalogues in the M 31 Region." Symposium - International Astronomical Union 126 (1988): 547–48. http://dx.doi.org/10.1017/s007418090004300x.

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In the course of work done in the Astronomy Department of Bologna University on “Search and Study of Globular Clusters in M 31”, a remarkable quantity of data in the literature concerning optical, X-ray and radio surveys in the field of Andromeda Galaxy has been accumulated.

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Podobedova, L. I., D. E. Kelleher, J. Reader, and W. L. Wiese. "Atomic Spectral Tables for the Chandra X-ray Observatory." Highlights of Astronomy 13 (2005): 657–61. http://dx.doi.org/10.1017/s1539299600016762.

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AbstractTables of wavelengths, line classifications, and transition probabilities have been critically compiled for ionized spectra of neon (Ne V-VIII), magnesium (Mg V-X), silicon (Si VI-XII), and sulfur (S VIII-XIV) in the 20 Å-170 Å region. The tables provide basic atomic data for about 3300 transitions in support of astronomical studies from the Chandra X-ray Observatory.

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Batty, Michael J., R. G. Gardyne, G. J. Gay, et al. "An ‘X-Banded’ Tidbinbilla Interferometer." Publications of the Astronomical Society of Australia 6, no. 3 (1986): 351–53. http://dx.doi.org/10.1017/s1323358000027053.

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AbstractThe recent upgrading of the Tidbinbilla two-element interferometer to simultaneous S-band (2.3 GHz) and X-band (8.4 GHz) operation has provided a powerful new astronomical facility for weak radio source measurement in the Southern Hemisphere. The new X-band system has a minimum fringe spacing of 38 arcsec, and about the same positional measurement capability (approximately 2 arcsec) and sensitivity (1 s rms noise of 10 mJy) as the previous S-band system. However, the far lower confusion limit will allow detection and accurate positional measurements for sources as weak as a few millija

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Wang, Guosen, Chuanyu Zhang, Xinlu Cheng, and Hong Zhang. "Theoretical study of infrared and ultraviolet spectroscopy in SiP interstellar molecules." Monthly Notices of the Royal Astronomical Society 532, no. 2 (2024): 1765–74. http://dx.doi.org/10.1093/mnras/stae1572.

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ABSTRACT Insufficient theoretical investigation is being conducted on the spectroscopic characteristics within the infrared wavelength range of SiP, an identified interstellar molecule. Using the ic-MRCI method, potential energy functions and dipole moment functions for the ground state (${X^2}\Pi $) and low excited states (${{\rm{A}}^2}{\Sigma ^ + }$) of the SiP molecule were calculated. Based on experimental spectroscopy data, least squares fitting was used for the potential energy functions of the ${X^2}\Pi $ and ${{\rm{A}}^2}{\Sigma ^ + }$ states. By combining these potential energy and di

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