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arXiv Open Access 2019

Astro2020 Science White Paper: Local Dwarf Galaxy Archaeology

Alexander P. Ji Rachel Beaton Sukanya Chakrabarti Gina Duggan Anna Frebel +6 lainnya
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Abstrak

Nearby dwarf galaxies are local analogues of high-redshift and metal-poor stellar populations. Most of these systems ceased star formation long ago, but they retain signatures of their past that can be unraveled by detailed study of their resolved stars. Archaeological examination of dwarf galaxies with resolved stellar spectroscopy provides key insights into the first stars and galaxies, galaxy formation in the smallest dark matter halos, stellar populations in the metal-free and metal-poor universe, the nature of the first stellar explosions, and the origin of the elements. Extremely large telescopes with multi-object R=5,000-30,000 spectroscopy are needed to enable such studies for galaxies of different luminosities throughout the Local Group.

Topik & Kata Kunci

astro-ph.GA astro-ph.CO

Penulis (11)

A

Alexander P. Ji

R

Rachel Beaton

S

Sukanya Chakrabarti

G

Gina Duggan

A

Anna Frebel

M

Marla Geha

M

Matthew Hosek

E

Evan Kirby

T

Ting Li

I

Ian Roederer

J

Joshua Simon

Format Sitasi

APA MLA BibTeX
Ji, A.P., Beaton, R., Chakrabarti, S., Duggan, G., Frebel, A., Geha, M. et al. (2019). Astro2020 Science White Paper: Local Dwarf Galaxy Archaeology. https://arxiv.org/abs/1903.09275

Akses Cepat

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Informasi Jurnal
Tahun Terbit
2019
Bahasa
en
Sumber Database
arXiv
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Open Access ✓