Damped Lyα absorption from a nearby low surface brightness galaxy

David V. Bowen; Todd M. Tripp; Edward B. Jenkins

doi:10.1086/319421

Damped Lyα absorption from a nearby low surface brightness galaxy

David V. Bowen, Todd M. Tripp, Edward B. Jenkins

Astrophysical Sciences

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

61 Scopus citations

Abstract

Ground-based and Hubble Space Telescope (HST) images of the nearby galaxy SBS 1543 + 593 (z = 0.009) show it to be a low surface brightness (LSB) galaxy with a central surface brightness μ_B(0) = 23.2 mag arcsec^-2 and scale length 0.9 h^-1₁₀₀ kpc, values typical for the local LSB galaxy population. The galaxy lies directly in front of the quasi-stellar object HS 1543 + 5921 (z = 0.807); an HST STIS spectrum of the quasar reveals a damped Lyα (DLyα) line at the redshift of the interloper with an H I column density of log N(H I) = 20.35, as well as several low-ionization metal lines with strengths similar to those found in the Milky Way interstellar medium. Our data show that LSB galaxies are certainly able to produce the DLyα lines seen at higher redshift and fuels the speculation that LSB galaxies are a major contributor to that population of absorbers.

Original language	English (US)
Pages (from-to)	1456-1460
Number of pages	5
Journal	Astronomical Journal
Volume	121
Issue number	3
DOIs	https://doi.org/10.1086/319421
State	Published - Mar 2001

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Galaxies: individual (SBS 1543 + 593)
Galaxies: structure
Quasars: absorption lines
Quasars: individual (HS 1543 + 5921)

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10.1086/319421

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title = "Damped Lyα absorption from a nearby low surface brightness galaxy",

abstract = "Ground-based and Hubble Space Telescope (HST) images of the nearby galaxy SBS 1543 + 593 (z = 0.009) show it to be a low surface brightness (LSB) galaxy with a central surface brightness μB(0) = 23.2 mag arcsec-2 and scale length 0.9 h-1100 kpc, values typical for the local LSB galaxy population. The galaxy lies directly in front of the quasi-stellar object HS 1543 + 5921 (z = 0.807); an HST STIS spectrum of the quasar reveals a damped Lyα (DLyα) line at the redshift of the interloper with an H I column density of log N(H I) = 20.35, as well as several low-ionization metal lines with strengths similar to those found in the Milky Way interstellar medium. Our data show that LSB galaxies are certainly able to produce the DLyα lines seen at higher redshift and fuels the speculation that LSB galaxies are a major contributor to that population of absorbers.",

keywords = "Galaxies: individual (SBS 1543 + 593), Galaxies: structure, Quasars: absorption lines, Quasars: individual (HS 1543 + 5921)",

author = "Bowen, {David V.} and Tripp, {Todd M.} and Jenkins, {Edward B.}",

year = "2001",

month = mar,

doi = "10.1086/319421",

language = "English (US)",

volume = "121",

pages = "1456--1460",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

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T1 - Damped Lyα absorption from a nearby low surface brightness galaxy

AU - Bowen, David V.

AU - Tripp, Todd M.

AU - Jenkins, Edward B.

PY - 2001/3

Y1 - 2001/3

N2 - Ground-based and Hubble Space Telescope (HST) images of the nearby galaxy SBS 1543 + 593 (z = 0.009) show it to be a low surface brightness (LSB) galaxy with a central surface brightness μB(0) = 23.2 mag arcsec-2 and scale length 0.9 h-1100 kpc, values typical for the local LSB galaxy population. The galaxy lies directly in front of the quasi-stellar object HS 1543 + 5921 (z = 0.807); an HST STIS spectrum of the quasar reveals a damped Lyα (DLyα) line at the redshift of the interloper with an H I column density of log N(H I) = 20.35, as well as several low-ionization metal lines with strengths similar to those found in the Milky Way interstellar medium. Our data show that LSB galaxies are certainly able to produce the DLyα lines seen at higher redshift and fuels the speculation that LSB galaxies are a major contributor to that population of absorbers.

AB - Ground-based and Hubble Space Telescope (HST) images of the nearby galaxy SBS 1543 + 593 (z = 0.009) show it to be a low surface brightness (LSB) galaxy with a central surface brightness μB(0) = 23.2 mag arcsec-2 and scale length 0.9 h-1100 kpc, values typical for the local LSB galaxy population. The galaxy lies directly in front of the quasi-stellar object HS 1543 + 5921 (z = 0.807); an HST STIS spectrum of the quasar reveals a damped Lyα (DLyα) line at the redshift of the interloper with an H I column density of log N(H I) = 20.35, as well as several low-ionization metal lines with strengths similar to those found in the Milky Way interstellar medium. Our data show that LSB galaxies are certainly able to produce the DLyα lines seen at higher redshift and fuels the speculation that LSB galaxies are a major contributor to that population of absorbers.

KW - Galaxies: individual (SBS 1543 + 593)

KW - Galaxies: structure

KW - Quasars: absorption lines

KW - Quasars: individual (HS 1543 + 5921)

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JO - Astronomical Journal

JF - Astronomical Journal

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ER -

Damped Lyα absorption from a nearby low surface brightness galaxy

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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