Academic literature on the topic 'Hertzsprung–Russell diagram'

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Journal articles on the topic "Hertzsprung–Russell diagram"

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Langer, N., and R. P. Kudritzki. "The spectroscopic Hertzsprung-Russell diagram." Astronomy & Astrophysics 564 (April 2014): A52. http://dx.doi.org/10.1051/0004-6361/201423374.

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MacLeod, Morgan, Matteo Cantiello, and Melinda Soares-Furtado. "Planetary Engulfment in the Hertzsprung–Russell Diagram." Astrophysical Journal 853, no. 1 (2018): L1. http://dx.doi.org/10.3847/2041-8213/aaa5fa.

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van Loon, Jacco Th. "Cool Stars in the Hertzsprung–Russell Diagram." Proceedings of the International Astronomical Union 11, A29B (2015): 475–77. http://dx.doi.org/10.1017/s1743921316005925.

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AbstractAs the opening review to the focus meeting “Stellar Behemoths: Red Supergiants across the Local Universe”, I here provide a brief introduction to red supergiants, setting the stage for subsequent contributions. I highlight some recent activity in the field, and identify areas of progress, areas where progress is needed, and how such progress might be achieved.
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Christensen-Dalsgaard, Jørgen. "A Hertzsprung-Russell diagram for stellar oscillations." Symposium - International Astronomical Union 123 (1988): 295–98. http://dx.doi.org/10.1017/s0074180900158279.

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I present evolutionary tracks and curves of constant central hydrogen abundance in diagrams based on frequencies of high-order, low-degree p modes. For stars with masses between 0.7 and 1.5 M⊙, a clean separation is obtained between the effects of varying mass and varying evolutionary state.
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van, den Broek Jos, and Pedro Russo. "Hertzsprung and Russel: The Minards of Astronomy." Communicating Astronomy with the Public Journal 8, no. 1 (2014): 17–19. https://doi.org/10.5281/zenodo.14928235.

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This article will explore the history of flow maps, the extent of their use and how astronomy has benefited from this illustrative way of communicating ideas. Flow maps are multidimensional infographics that tell a long story in one single image. In 1812 the French civil engineer Charles Joseph Minard created a flow map that is still dubbed “the mother of all flow maps”, summarising Napoleon’s Russian campaign (Figure 1). Almost 100 years later, in 1910, Ejnar Hertzsprung and­ Henry Norris Russell created a multidimensional flow map that arguably surpasses Minard’s
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Zaninetti, L. "Semi-analytical formulas for the Hertzsprung-Russell diagram." Serbian Astronomical Journal, no. 177 (2008): 73–85. http://dx.doi.org/10.2298/saj0877073z.

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The absolute visual magnitude as function of the observed color (B-V), also named Hertzsprung-Russell diagram, can be described through five equations; that when calibrated stars are available means eight constants. The developed framework allows to deduce the remaining physical parameters, mass, radius and luminosity. This new technique is applied to the first 10 pc, the first 50 pc, the Hyades and to the determination of the distance of a cluster. The case of the white dwarfs is analyzed assuming the absence of calibrated data: our equation produces a smaller ?2 with respect to the standard
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Doom, C., J. P. de Greve, and C. de Loore. "Stellar evolution in the upper Hertzsprung-Russell diagram." Astrophysical Journal 303 (April 1986): 136. http://dx.doi.org/10.1086/164060.

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Hubrig, S., P. North, and G. Mathys. "Magnetic Ap Stars in the Hertzsprung‐Russell Diagram." Astrophysical Journal 539, no. 1 (2000): 352–63. http://dx.doi.org/10.1086/309189.

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Jao, Wei-Chun, and Gregory A. Feiden. "An Enhanced Hertzsprung–Russell Diagram Using Gaia EDR3 Data." Research Notes of the AAS 5, no. 5 (2021): 124. http://dx.doi.org/10.3847/2515-5172/ac053a.

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Farag, Ebraheem, F. X. Timmes, Morgan Taylor, Kelly M. Patton, and R. Farmer. "On Stellar Evolution in a Neutrino Hertzsprung–Russell Diagram." Astrophysical Journal 893, no. 2 (2020): 133. http://dx.doi.org/10.3847/1538-4357/ab7f2c.

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Dissertations / Theses on the topic "Hertzsprung–Russell diagram"

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Brogt, E. "Pedagogical and curricular thinking of professional astronomers teaching the Hertzsprung-Russell diagram in introductory astronomy courses for non-science majors." Thesis, University of Canterbury. University Centre for Teaching and Learning, 2009. http://gradworks.umi.com/33/52/3352344.html.

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Brogt, Erik. "Pedagogical and Curricular Thinking of Professional Astronomers Teaching the Hertzsprung-Russell Diagram in Introductory Astronomy Courses for Non-Science Majors." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195246.

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This qualitative study explores the pedagogical and curricular thinking of five professional astronomers, faculty at a university, about teaching the Hertzsprung-Russell diagram in introductory astronomy courses for non-science majors. Data sources for this study included two semi-structured interviews per participant, in which they were asked about teaching the Hertzsprung-Russell diagram, as well as about the introductory course in general. In addition, participants were asked to complete four cognitive tasks; the creation of a lesson plan, a concept map on how they would like their studen
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Fu, Xiaoting. "Evolution of low mass stars: lithium problem and alpha enhanced tracks and isochrones." Doctoral thesis, SISSA, 2016. http://hdl.handle.net/20.500.11767/4919.

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PARSEC (PAdova-TRieste Stellar Evolution Code) is the updated version of the the stellar evolution code used in Padova. It provides stellar tracks and isochrones for stellar mass from 0.1 M ⊙ to 350 M ⊙ and metallicity from Z=0.00001 to 0.06. The evolutionary phases are from pre-main sequence to the thermally pulsing asymptotic giant branch. The core of my Ph.D. project is building a new PARSEC database of α enhanced stellar evolutionary tracks and isochrones for Gaia. Precise studies on the Galactic bulge, globular cluster, Galactic halo and Galactic thick disk require stellar models with
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Chen, Yang. "Evolution of Very Low Mass Stars and Very Massive Stars in PARSEC." Doctoral thesis, SISSA, 2015. http://hdl.handle.net/20.500.11767/4879.

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During my Ph.D. study, I have been concentrating on the evolutionary tracks and atmosphere models of very low mass stars (VLMSs; ∼ 0.1 − 0.6 Msun) and very massive stars (VMSs; ∼ 12−350 Msun), based on the PAdova-TRieste Stellar Evolution Code (PARSEC). For the very low mass models, it appeared that the previous models computed with PARSEC were unable to correctly predict some basic observational relations. These relations include the mass–radius relation and the colour-magnitude relations of cool dwarfs. We replace the approximate boundary conditions used in PARSEC with those provided by more
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Weisz, Daniel R., Sergey E. Koposov, Andrew E. Dolphin, et al. "A HUBBLE SPACE TELESCOPE STUDY OF THE ENIGMATIC MILKY WAY HALO GLOBULAR CLUSTER CRATER." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/621220.

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We analyze the resolved stellar populations of the faint stellar system, Crater, based on deep optical imaging taken with the Advanced Camera for Surveys on the Hubble Space Telescope. Crater's color-magnitude diagram (CMD) extends similar to 4 mag below the oldest main-sequence (MS) turnoff. Structurally, we find that Crater has a half-light radius of similar to 20 pc and no evidence for tidal distortions. We model. Crater's CMD as a simple stellar population (SSP) and alternatively by solving for its full star formation history. In both cases, Crater is well. described by an SSP with an age
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Girardi, Mauricio. "Construção do diagrama Hertzsprung-Russel através do stellarium : uma proposta para explorar conceitos de física moderna e contemporânea no ensino médio." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/175181.

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Neste trabalho propõe-se explorar conceitos de Física Moderna e Contemporânea (FMC) a partir de fenômenos físicos presentes na física estelar, utilizando o software Stellarium como ferramenta no desenvolvimento de atividades voltadas à construção coletiva de um diagrama Hertzsprung-Russell (diagrama H-R), que é um diagrama muito importante da astrofísica para classificação das estrelas. À luz da teoria de Lev S. Vygotsky, é proposto que os alunos trabalhem em grupos, de forma colaborativa, tanto na obtenção de parâmetros astrofísicos estelares a partir do software, quanto na construção do diag
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Bell, Cameron Pearce MacDonald. "A critical assessment of ages derived using pre-main-sequence isochrones in colour-magnitude diagrams." Thesis, University of Exeter, 2012. http://hdl.handle.net/10036/4017.

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In this thesis a critical assessment of the ages derived using theoretical pre-main-sequence (pre-MS) stellar evolutionary models is presented by comparing the predictions to the low-mass pre-MS population of 14 young star-forming regions (SFRs) in colour-magnitude diagrams (CMDs). Deriving pre-MS ages requires precise distances and estimates of the reddening. Therefore, the main-sequence (MS) members of the SFRs have been used to derive a self-consistent set of statistically robust ages, distances and reddenings with associated uncertainties using a maximum-likelihood fitting statistic and MS
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Milone, A. P., A. F. Marino, L. R. Bedin, et al. "The HST large programme on omega Centauri - I. Multiple stellar populations at the bottom of the main sequence probed in NIR-Optical." OXFORD UNIV PRESS, 2017. http://hdl.handle.net/10150/624420.

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As part of a large investigation with Hubble Space Telescope to study the faintest stars within the globular cluster omega Centauri, in this work we present early results on the multiplicity of its main sequence (MS) stars, based on deep optical and near-infrared observations. By using appropriate colour-magnitude diagrams, we have identified, for the first time, the two main stellar Populations I and II along the entire MS, from the turn-off towards the hydrogen-burning limit. We have compared the observations with suitable synthetic spectra of MS stars and conclude that the two main sequence
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Mattioli, Giulia. "Reazioni termonucleari nei nuclei stellari." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24275/.

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In questo lavoro di tesi si descrivono le principali reazioni termonucleari che sono il principale meccanismo di produzione energetica nei nuclei stellari. La trattazione è stata effettuata seguendo un approccio interdisciplinare, evidenziando il collegamento tra aspetti di meccanica quantistica, fisica nucleare e astrofisica. L'obiettivo della tesi è fornire un quadro completo e organico dell'argomento e legare le catene di bruciamenti termonucleari alle diverse fasi dell'evoluzione stellare. Nel primo capitolo si è effettuata una trattazione fisica e matematica per poter definire il tass
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Dieterich, Sergio Bonucci. "Characterization of the Stellar / Substellar Boundary." 2013. http://scholarworks.gsu.edu/phy_astr_diss/66.

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The aim of this dissertation is to address the topic of distinguishing very low mass stars from brown dwarfs through observational means. To that end, we seek to better characterize both populations and establish mechanisms that facilitate establishing an individual object's membership in either the very low mass star or the brown dwarf populations. The dissertation is composed of three separate observational studies. In the first study we report on our analysis of HST/NICMOS snapshot high resolution images of 255 stars in 201 systems within ~10 parsecs of the Sun. We establish magnitude an
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Books on the topic "Hertzsprung–Russell diagram"

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Gautier, Mathys, Solanki Sami K, and Wickramasinghe D. T, eds. Magnetic fields across the Hertzsprung-Russell diagram: Proceedings of a workshop held in Santiago, Chile, 15-19 January 2001. Astronomical Society of the Pacific, 2001.

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(Editor), Gautier Mathys, S. K. Solanki (Editor), and D. T. Wickramasinghe (Editor), eds. Magnetic Fields Across the Hertzsprung-Russell Diagram: Proceedings of a Workshop Held in Santiago Chile, 15-19 January 2001 (Astronomical Society of the Pacific conference series). Astronomical Society of the Pacific, 2001.

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Book chapters on the topic "Hertzsprung–Russell diagram"

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Montmerle, Thierry, and Sylvia Ekström. "Hertzsprung-Russell Diagram." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_717-7.

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Brill, Michael H. "Hertzsprung-Russell Diagram." In Encyclopedia of Color Science and Technology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-27851-8_188-2.

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Brill, Michael H. "Hertzsprung-Russell Diagram." In Encyclopedia of Color Science and Technology. Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-642-27851-8_188-3.

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Montmerle, Thierry, and Sylvia Ekström. "Hertzsprung-Russell Diagram." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_717.

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Montmerle, Thierry, and Sylvia Ekström. "Hertzsprung–Russell Diagram." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_717.

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Montmerle, Thierry, and Sylvia Ekström. "Hertzsprung-Russell Diagram." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_717.

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Brill, Michael H. "Hertzsprung-Russell Diagram." In Encyclopedia of Color Science and Technology. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-030-89862-5_188.

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Brill, Michael H. "Hertzsprung-Russell Diagram." In Encyclopedia of Color Science and Technology. Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4419-8071-7_188.

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Inglis, Michael. "The Hertzsprung-Russell Diagram." In The Patrick Moore Practical Astronomy Series. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11644-0_4.

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Inglis, Michael. "The Hertzsprung-Russell Diagram." In The Patrick Moore Practical Astronomy Series. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-16805-5_4.

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Conference papers on the topic "Hertzsprung–Russell diagram"

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Huppenkothen, Daniela, Juan Pampin, James R. A. Davenport, and James Wenlock. "The Sonified Hertzsprung-Russell Diagram." In ICAD 2023: The 28th International Conference on Auditory Display. International Community for Auditory Display, 2023. http://dx.doi.org/10.21785/icad2023.6263.

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Understanding the physical properties of stars, and putting these properties into the context of stellar evolution, is a core challenge in astronomical research. A key visualization in studying stellar evolution is the Hertzsprung-Russell diagram (HRD), organizing data about stellar luminosity and colour into a form that is informative about stellar structure and evolution. However, connecting the HRD with other sources of information, including stellar time series, is an outstanding challenge. Here we present a new method to turn stellar time series into sound. This method encodes physically
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Aimran Wan Mohd Kamil, Wan Mohd, Nurul Shazana Abdul Hamid, Marlia Puteh, et al. "Using Interactive Applet to Support Collaborative Learning of The Hertzsprung-Russell Diagram." In 2019 6th International Conference on Space Science and Communication (IconSpace). IEEE, 2019. http://dx.doi.org/10.1109/iconspace.2019.8905949.

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