THE LYMAN ALPHA REFERENCE SAMPLE. III. PROPERTIES OF THE NEUTRAL ISM FROM GBT AND VLA OBSERVATIONS
THE LYMAN ALPHA REFERENCE SAMPLE. III. PROPERTIES OF THE NEUTRAL ISM FROM GBT AND VLA OBSERVATIONS
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莱曼阿尔法参考样本 III GBT 和 VLA 观测中的中性 ISM 属性
DOI:
10.1088/0004-637x/794/2/101
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Schaerer
中科院分区:
文献类型:
--
作者:
Cannon;Östlin;Rivera-Thorsen;Sandberg;Freeland;Herenz;Guaita;Laursen;Mas- Hesse;Melinder;Orlitová;Otí-Floranes;Puschnig;Schaerer
We present new H i imaging and spectroscopy of the 14 UV-selected star-forming galaxies in the Lyman Alpha Reference Sample (LARS), aimed for a detailed study of the processes governing the production, propagation, and escape of Lyα photons. New H i spectroscopy, obtained with the 100 m Green Bank Telescope (GBT), robustly detects the H i spectral line in 11 of the 14 observed LARS galaxies (although the profiles of two of the galaxies are likely confused by other sources within the GBT beam); the three highest redshift galaxies are not detected at our current sensitivity limits. The GBT profiles are used to derive fundamental H i line properties of the LARS galaxies. We also present new pilot H i spectral line imaging of five of the LARS galaxies obtained with the Karl G. Jansky Very Large Array (VLA). This imaging localizes the H i gas and provides a measurement of the total H i mass in each galaxy. In one system, LARS 03 (UGC 8335 or Arp 238), VLA observations reveal an enormous tidal structure that extends over 160 kpc from the main interacting systems and that contains> 10 9 M☉ of H i. We compare various H i properties with global Lyα quantities derived from Hubble Space Telescope measurements. The measurements of the Lyα escape fraction are coupled with the new direct measurements of H i mass and significantly disturbed H i velocities. Our robustly detected sample reveals tentative correlations between the total H i mass and linewidth, and key Lyα tracers. Further, on global scales, these data support a complex coupling between Lyα propagation and the H i properties of the surrounding medium.
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DOI:
10.1088/0004-637x/782/1/6
发表时间:
2013-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Hayes;M. Hayes;M. Hayes;G. Östlin;F. Duval;A. Sandberg;L. Guaita;J. Melinder;A. Adamo
通讯作者:
M. Hayes;M. Hayes;M. Hayes;G. Östlin;F. Duval;A. Sandberg;L. Guaita;J. Melinder;A. Adamo
DOI:
10.1088/2041-8205/765/2/l27
发表时间:
2013-02
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
Matthew Hayes;G. Östlin;D. Schaerer;A. Verhamme;J. Mas-Hesse;A. Adamo;H. Atek;J. Cannon;
通讯作者:
Matthew Hayes;G. Östlin;D. Schaerer;A. Verhamme;J. Mas-Hesse;A. Adamo;H. Atek;J. Cannon;
DOI:
10.1088/0004-637x/768/1/74
发表时间:
2012-11
期刊:
The Astrophysical Journal
影响因子:
--
作者:
L. Tacconi;R. Neri;R. Genzel;F. Combes;A. Bolatto;M. Cooper;S. Wuyts;F. Bournaud;A. Burkert-
通讯作者:
L. Tacconi;R. Neri;R. Genzel;F. Combes;A. Bolatto;M. Cooper;S. Wuyts;F. Bournaud;A. Burkert-
DOI:
10.1088/0004-637x/765/2/118
发表时间:
2013
期刊:
The Astrophysical Journal
影响因子:
--
作者:
A. Wofford;C. Leitherer;J. Salzer
通讯作者:
J. Salzer
DOI:
10.1051/0004-6361/200912787
发表时间:
2009
期刊:
arXiv: Cosmology and Nongalactic Astrophysics
影响因子:
--
作者:
H. Atek;D. Kunth;D. Schaerer;M. Hayes;J. Deharveng;G. Ostlin;J. M. M. Iap;Obs. Geneve;Lam;Okc Stockholm;CSIC
通讯作者:
CSIC