Properties of the Z =2.73 galaxy, MS1512-CB58

Sara R. Heap; Ivan Hubeny; Thierry M. Lanz

doi:10.1023/A:1012767508717

Properties of the Z =2.73 galaxy, MS1512-CB58

Sara R. Heap, Ivan Hubeny, Thierry M. Lanz

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

MS1512-cB58 is an z = 2.73 galaxy whose apparent brightness is amplified by 30-50X due to gravitationally lensing. The restframe far-UV spectrum of cB58 that was obtained by Keck-I/LRIS is 'one of the best ultraviolet spectra of a starburst galaxy obtained at any redshift' (Pettini et al., 2000). We have analyzed and modeled the spectrum of this galaxy in order to learn the properties of high-redshift galaxies. We find that our model spectrum is a near match to the observed spectrum of cB58 if the galaxy has a SMC-like metallicity, and has a Salpeter IMF extending up to ∼ 100 M_⊙. The spectrum of cB58 also shows many absorption lines formed in a giant, expanding gas shell surrounding the star-forming complex. We show preliminary findings of the properties of the giant HII region based on our CLOUDSPEC model.

Original language	English (US)
Pages (from-to)	263-266
Number of pages	4
Journal	Astrophysics and Space Science
Volume	277
DOIs	https://doi.org/10.1023/A:1012767508717
State	Published - 2001
Externally published	Yes

Keywords

Cosmology: observations
Galaxies: evolution
Galaxies: individual (MS1512-cB58)
Ultraviolet

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1023/A:1012767508717

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title = "Properties of the Z =2.73 galaxy, MS1512-CB58",

abstract = "MS1512-cB58 is an z = 2.73 galaxy whose apparent brightness is amplified by 30-50X due to gravitationally lensing. The restframe far-UV spectrum of cB58 that was obtained by Keck-I/LRIS is 'one of the best ultraviolet spectra of a starburst galaxy obtained at any redshift' (Pettini et al., 2000). We have analyzed and modeled the spectrum of this galaxy in order to learn the properties of high-redshift galaxies. We find that our model spectrum is a near match to the observed spectrum of cB58 if the galaxy has a SMC-like metallicity, and has a Salpeter IMF extending up to ∼ 100 M⊙. The spectrum of cB58 also shows many absorption lines formed in a giant, expanding gas shell surrounding the star-forming complex. We show preliminary findings of the properties of the giant HII region based on our CLOUDSPEC model.",

keywords = "Cosmology: observations, Galaxies: evolution, Galaxies: individual (MS1512-cB58), Ultraviolet",

author = "Heap, {Sara R.} and Ivan Hubeny and Lanz, {Thierry M.}",

year = "2001",

doi = "10.1023/A:1012767508717",

language = "English (US)",

volume = "277",

pages = "263--266",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

publisher = "Springer Netherlands",

}

TY - JOUR

T1 - Properties of the Z =2.73 galaxy, MS1512-CB58

AU - Heap, Sara R.

AU - Hubeny, Ivan

AU - Lanz, Thierry M.

PY - 2001

Y1 - 2001

N2 - MS1512-cB58 is an z = 2.73 galaxy whose apparent brightness is amplified by 30-50X due to gravitationally lensing. The restframe far-UV spectrum of cB58 that was obtained by Keck-I/LRIS is 'one of the best ultraviolet spectra of a starburst galaxy obtained at any redshift' (Pettini et al., 2000). We have analyzed and modeled the spectrum of this galaxy in order to learn the properties of high-redshift galaxies. We find that our model spectrum is a near match to the observed spectrum of cB58 if the galaxy has a SMC-like metallicity, and has a Salpeter IMF extending up to ∼ 100 M⊙. The spectrum of cB58 also shows many absorption lines formed in a giant, expanding gas shell surrounding the star-forming complex. We show preliminary findings of the properties of the giant HII region based on our CLOUDSPEC model.

AB - MS1512-cB58 is an z = 2.73 galaxy whose apparent brightness is amplified by 30-50X due to gravitationally lensing. The restframe far-UV spectrum of cB58 that was obtained by Keck-I/LRIS is 'one of the best ultraviolet spectra of a starburst galaxy obtained at any redshift' (Pettini et al., 2000). We have analyzed and modeled the spectrum of this galaxy in order to learn the properties of high-redshift galaxies. We find that our model spectrum is a near match to the observed spectrum of cB58 if the galaxy has a SMC-like metallicity, and has a Salpeter IMF extending up to ∼ 100 M⊙. The spectrum of cB58 also shows many absorption lines formed in a giant, expanding gas shell surrounding the star-forming complex. We show preliminary findings of the properties of the giant HII region based on our CLOUDSPEC model.

KW - Cosmology: observations

KW - Galaxies: evolution

KW - Galaxies: individual (MS1512-cB58)

KW - Ultraviolet

UR - http://www.scopus.com/inward/record.url?scp=0035605525&partnerID=8YFLogxK

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U2 - 10.1023/A:1012767508717

DO - 10.1023/A:1012767508717

M3 - Article

AN - SCOPUS:0035605525

SN - 0004-640X

VL - 277

SP - 263

EP - 266

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

ER -

Properties of the Z =2.73 galaxy, MS1512-CB58

Abstract

Keywords

ASJC Scopus subject areas

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