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Complexity in small-scale dwarf spheroidal galaxies

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Complexity in small-scale dwarf spheroidal galaxies. / Koch, Andreas; Adén, D.; Grebel, Eva K. et al.
In: Proceedings of the International Astronomical Union, Vol. 5, No. S265, 08.2009, p. 227-232.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Koch, A, Adén, D, Grebel, EK & Feltzing, S 2009, 'Complexity in small-scale dwarf spheroidal galaxies', Proceedings of the International Astronomical Union, vol. 5, no. S265, pp. 227-232. https://doi.org/10.1017/S174392131000061X

APA

Koch, A., Adén, D., Grebel, E. K., & Feltzing, S. (2009). Complexity in small-scale dwarf spheroidal galaxies. Proceedings of the International Astronomical Union, 5(S265), 227-232. https://doi.org/10.1017/S174392131000061X

Vancouver

Koch A, Adén D, Grebel EK, Feltzing S. Complexity in small-scale dwarf spheroidal galaxies. Proceedings of the International Astronomical Union. 2009 Aug;5(S265):227-232. doi: 10.1017/S174392131000061X

Author

Koch, Andreas ; Adén, D. ; Grebel, Eva K. et al. / Complexity in small-scale dwarf spheroidal galaxies. In: Proceedings of the International Astronomical Union. 2009 ; Vol. 5, No. S265. pp. 227-232.

Bibtex

@article{18ec31bafe7f440d9ae018fd52cb24ea,
title = "Complexity in small-scale dwarf spheroidal galaxies",
abstract = "Our knowledge about the chemical evolution of the more luminous dwarf spheroidal (dSph) galaxies is constantly growing. However, little is known about the enrichment of the ultrafaint systems recently discovered in large numbers in large Sky Surveys. Low-resolution spectroscopy and photometric data indicate that these galaxies are predominantly metal-poor. On the other hand, the most recent high-resolution abundance analyses indicate that some of these galaxies experienced highly inhomogenous chemical enrichment, where star formation proceeds locally on the smallest scales. Furthermore, these galaxy-contenders appear to contain very metal-poor stars with [Fe/H]< −3 dex and could be the sites of the first stars. Here, we consider the presently available chemical abundance information of the (ultra-) faint Milky Way satellite dSphs. In this context, some of the most peculiar element and inhomogeneous enrichment patterns will be discussed and related to the question of to what extent the faintest dSph candidates and outer halo globular clusters could have contributed to the metal-poor Galactic halo.",
author = "Andreas Koch and D. Ad{\'e}n and Grebel, {Eva K.} and S. Feltzing",
year = "2009",
month = aug,
doi = "10.1017/S174392131000061X",
language = "English",
volume = "5",
pages = "227--232",
journal = "Proceedings of the International Astronomical Union",
issn = "1743-9213",
publisher = "Cambridge University Press",
number = "S265",

}

RIS

TY - JOUR

T1 - Complexity in small-scale dwarf spheroidal galaxies

AU - Koch, Andreas

AU - Adén, D.

AU - Grebel, Eva K.

AU - Feltzing, S.

PY - 2009/8

Y1 - 2009/8

N2 - Our knowledge about the chemical evolution of the more luminous dwarf spheroidal (dSph) galaxies is constantly growing. However, little is known about the enrichment of the ultrafaint systems recently discovered in large numbers in large Sky Surveys. Low-resolution spectroscopy and photometric data indicate that these galaxies are predominantly metal-poor. On the other hand, the most recent high-resolution abundance analyses indicate that some of these galaxies experienced highly inhomogenous chemical enrichment, where star formation proceeds locally on the smallest scales. Furthermore, these galaxy-contenders appear to contain very metal-poor stars with [Fe/H]< −3 dex and could be the sites of the first stars. Here, we consider the presently available chemical abundance information of the (ultra-) faint Milky Way satellite dSphs. In this context, some of the most peculiar element and inhomogeneous enrichment patterns will be discussed and related to the question of to what extent the faintest dSph candidates and outer halo globular clusters could have contributed to the metal-poor Galactic halo.

AB - Our knowledge about the chemical evolution of the more luminous dwarf spheroidal (dSph) galaxies is constantly growing. However, little is known about the enrichment of the ultrafaint systems recently discovered in large numbers in large Sky Surveys. Low-resolution spectroscopy and photometric data indicate that these galaxies are predominantly metal-poor. On the other hand, the most recent high-resolution abundance analyses indicate that some of these galaxies experienced highly inhomogenous chemical enrichment, where star formation proceeds locally on the smallest scales. Furthermore, these galaxy-contenders appear to contain very metal-poor stars with [Fe/H]< −3 dex and could be the sites of the first stars. Here, we consider the presently available chemical abundance information of the (ultra-) faint Milky Way satellite dSphs. In this context, some of the most peculiar element and inhomogeneous enrichment patterns will be discussed and related to the question of to what extent the faintest dSph candidates and outer halo globular clusters could have contributed to the metal-poor Galactic halo.

U2 - 10.1017/S174392131000061X

DO - 10.1017/S174392131000061X

M3 - Journal article

VL - 5

SP - 227

EP - 232

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

SN - 1743-9213

IS - S265

ER -