Garcia, Miriam ORCID: 0000-0003-0316-1208, Evans, Christopher J., Bestenlehner, Joachim M., Bouret, Jean Claude, Castro, Norberto ORCID: 0000-0003-0521-473X, Cervino, Miguel, Fullerton, Alexander W., Gieles, Mark ORCID: 0000-0002-9716-1868, Herrero, Artemio, de Koter, Alexander, Lennon, Daniel J., van Loon, Jacco Th, Martins, Fabrice, de Mink, Selma E., Najarro, Francisco, Negueruela, Ignacio ORCID: 0000-0003-1952-3680, Sana, Hugues ORCID: 0000-0001-6656-4130, Simon-Diaz, Sergio, Szecsi, Dorottya ORCID: 0000-0001-6473-7085, Tramper, Frank ORCID: 0000-0001-8631-7700, Vink, Jorick S. and Wofford, Aida (2021). Massive stars in extremely metal-poor galaxies: a window into the past. Exp. Astron., 51 (3). S. 887 - 912. DORDRECHT: SPRINGER. ISSN 1572-9508

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Abstract

Cosmic history has witnessed the lives and deaths of multiple generations of massive stars, all of them invigorating their host galaxies with ionizing photons, kinetic energy, fresh material, and stellar-mass black holes. Ubiquitous engines as they are, astrophysics needs a good understanding of their formation, evolution, properties and yields throughout the history of the Universe, and with decreasing metal content mimicking the environment at the earliest epochs. Ultimately, a physical model that could be extrapolated to zero metallicity would enable tackling long-standing questions such as What did the first, very massive stars of the Universe look like? or What was their role in the re-ionization of the Universe? Yet, most of our knowledge of metal-poor massive stars is drawn from one single point in metallicity. Massive stars in the Small Magellanic Cloud (SMC, similar to 1/5 Z(circle dot)) currently serve as templates for low-metallicity objects in the early Universe, even though significant differences with respect to massive stars with poorer metal content have been reported. This White Paper summarizes the current knowledge on extremely (subSMC) metal poor massive stars, highlighting the most outstanding open questions and the need to supersede the SMC as standard. A new paradigm can be built from nearby extremely metal-poor galaxies that make a new metallicity ladder, but massive stars in these galaxies are out of reach to current observational facilities. Such a task would require an L-size mission, consisting of a 10m-class space telescope operating in the optical and the ultraviolet ranges. Alternatively, we propose that ESA unites efforts with NASA to make the LUVOIR mission concept a reality, thus continuing the successful partnership that made the Hubble Space Telescope one of the greatest observatories of all time.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Garcia, MiriamUNSPECIFIEDorcid.org/0000-0003-0316-1208UNSPECIFIED
Evans, Christopher J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bestenlehner, Joachim M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bouret, Jean ClaudeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Castro, NorbertoUNSPECIFIEDorcid.org/0000-0003-0521-473XUNSPECIFIED
Cervino, MiguelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fullerton, Alexander W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gieles, MarkUNSPECIFIEDorcid.org/0000-0002-9716-1868UNSPECIFIED
Herrero, ArtemioUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de Koter, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lennon, Daniel J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
van Loon, Jacco ThUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Martins, FabriceUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
de Mink, Selma E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Najarro, FranciscoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Negueruela, IgnacioUNSPECIFIEDorcid.org/0000-0003-1952-3680UNSPECIFIED
Sana, HuguesUNSPECIFIEDorcid.org/0000-0001-6656-4130UNSPECIFIED
Simon-Diaz, SergioUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Szecsi, DorottyaUNSPECIFIEDorcid.org/0000-0001-6473-7085UNSPECIFIED
Tramper, FrankUNSPECIFIEDorcid.org/0000-0001-8631-7700UNSPECIFIED
Vink, Jorick S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wofford, AidaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-605534
DOI: 10.1007/s10686-021-09785-x
Journal or Publication Title: Exp. Astron.
Volume: 51
Number: 3
Page Range: S. 887 - 912
Date: 2021
Publisher: SPRINGER
Place of Publication: DORDRECHT
ISSN: 1572-9508
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
LOW-METALLICITY; DRIVEN WINDS; PRESUPERNOVA EVOLUTION; CHEMICAL ABUNDANCES; BLUE SUPERGIANTS; SYNTHESIS MODELS; STELLAR; PROGENITORS; DEPENDENCE; SUPERNOVAMultiple languages
Astronomy & AstrophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/60553

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