21-cm H I emission from the damped Lyman-α absorber SBS 1543+593

D. V. Bowen; W. Huchtmeier; E. Brinks; T. M. Tripp; E. B. Jenkins

doi:10.1051/0004-6361:20010592

21-cm H I emission from the damped Lyman-α absorber SBS 1543+593

D. V. Bowen, W. Huchtmeier, E. Brinks, T. M. Tripp, E. B. Jenkins

Astrophysical Sciences

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

19 Scopus citations

Abstract

We detect 21-cm emission from the Low Surface Brightness (LSB) galaxy SBS 1543+593, which gives rise to a Damped-Lyα (DLyα) absorption line in the spectrum of the background QSO HS 1543+5921 (z_e = 0.807). We obtain an accurate measure of the velocity of the H I gas in the LSB galaxy, v = 2868 km s^-1, and derive a mass of M_HI = 1.3 × 10⁹ M_⊙. We compare M_HI with limits obtained towards two other z ∼ 0 DLyα systems, and show that SBS 1543+593 would not have been detected. Hence LSB galaxies similar to SBS 1543+593 can be responsible for DLyα systems at even modest redshifts without being detectable from their 21-cm emission.

Original language	English (US)
Pages (from-to)	820-823
Number of pages	4
Journal	Astronomy and Astrophysics
Volume	372
Issue number	3
DOIs	https://doi.org/10.1051/0004-6361:20010592
State	Published - 2001

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Galaxies: individual: SBS 1543+593
Quasars: absorption lines
Radio lines: ISM

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10.1051/0004-6361:20010592

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@article{4f62eece0821499cab0e89b130598795,

title = "21-cm H I emission from the damped Lyman-α absorber SBS 1543+593",

abstract = "We detect 21-cm emission from the Low Surface Brightness (LSB) galaxy SBS 1543+593, which gives rise to a Damped-Lyα (DLyα) absorption line in the spectrum of the background QSO HS 1543+5921 (ze = 0.807). We obtain an accurate measure of the velocity of the H I gas in the LSB galaxy, v = 2868 km s-1, and derive a mass of MHI = 1.3 × 109 M⊙. We compare MHI with limits obtained towards two other z ∼ 0 DLyα systems, and show that SBS 1543+593 would not have been detected. Hence LSB galaxies similar to SBS 1543+593 can be responsible for DLyα systems at even modest redshifts without being detectable from their 21-cm emission.",

keywords = "Galaxies: individual: SBS 1543+593, Quasars: absorption lines, Radio lines: ISM",

author = "Bowen, {D. V.} and W. Huchtmeier and E. Brinks and Tripp, {T. M.} and Jenkins, {E. B.}",

year = "2001",

doi = "10.1051/0004-6361:20010592",

language = "English (US)",

volume = "372",

pages = "820--823",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

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TY - JOUR

T1 - 21-cm H I emission from the damped Lyman-α absorber SBS 1543+593

AU - Bowen, D. V.

AU - Huchtmeier, W.

AU - Brinks, E.

AU - Tripp, T. M.

AU - Jenkins, E. B.

PY - 2001

Y1 - 2001

N2 - We detect 21-cm emission from the Low Surface Brightness (LSB) galaxy SBS 1543+593, which gives rise to a Damped-Lyα (DLyα) absorption line in the spectrum of the background QSO HS 1543+5921 (ze = 0.807). We obtain an accurate measure of the velocity of the H I gas in the LSB galaxy, v = 2868 km s-1, and derive a mass of MHI = 1.3 × 109 M⊙. We compare MHI with limits obtained towards two other z ∼ 0 DLyα systems, and show that SBS 1543+593 would not have been detected. Hence LSB galaxies similar to SBS 1543+593 can be responsible for DLyα systems at even modest redshifts without being detectable from their 21-cm emission.

AB - We detect 21-cm emission from the Low Surface Brightness (LSB) galaxy SBS 1543+593, which gives rise to a Damped-Lyα (DLyα) absorption line in the spectrum of the background QSO HS 1543+5921 (ze = 0.807). We obtain an accurate measure of the velocity of the H I gas in the LSB galaxy, v = 2868 km s-1, and derive a mass of MHI = 1.3 × 109 M⊙. We compare MHI with limits obtained towards two other z ∼ 0 DLyα systems, and show that SBS 1543+593 would not have been detected. Hence LSB galaxies similar to SBS 1543+593 can be responsible for DLyα systems at even modest redshifts without being detectable from their 21-cm emission.

KW - Galaxies: individual: SBS 1543+593

KW - Quasars: absorption lines

KW - Radio lines: ISM

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DO - 10.1051/0004-6361:20010592

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SN - 0004-6361

VL - 372

SP - 820

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JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 3

ER -

21-cm H I emission from the damped Lyman-α absorber SBS 1543+593

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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