LAE among star-forming galaxies at z=2.5 Virtual Observatory Resource

Authors
  1. Shimakawa R.
  2. Kodama T.
  3. Shibuya T.
  4. Kashikawa N.
  5. Tanaka I.
  6. Matsuda Y.,Tadaki K.-I.
  7. Koyama Y.
  8. Hayashi M.
  9. Suzuki T.L.
  10. Yamamoto M.
  11. Published by
    CDS
Abstract

We conducted a deep narrow-band imaging survey with the Subaru Prime Focus Camera on the Subaru Telescope and constructed a sample of Ly{alpha} emitters (LAEs) at z=2.53 in the UDS-CANDELS field, where a sample of H{alpha} emitters (HAEs) at the same redshift is already obtained from our previous narrow-band observation at near-infrared. The deep narrow-band and multibroad-band data allow us to find LAEs of stellar masses and star formation rates (SFRs) down to >=10^8^M_{sun}_ and >=0.2 M_{sun}_/yr, respectively. We show that the LAEs are located along the same mass-SFR sequence traced by normal star-forming galaxies such as HAEs, but towards a significantly lower mass regime. Likewise, LAEs seem to share the same mass-size relation with typical star-forming galaxies, except for the massive LAEs that tend to show significantly compact sizes. We identify a vigorous mass growth in the central part of LAEs: the stellar mass density in the central region of LAEs increases as their total galaxy mass grows. On the other hand, we see no Ly{alpha} line in emission for most of the HAEs. Rather, we find that the Ly{alpha} feature is either absent or in absorption (Ly{alpha} absorbers, LAAs), and its absorption strength may increase with reddening of the UV continuum slope. We demonstrate that a deep Ly{alpha} narrow-band imaging like this study is able to search for not only LAEs but also LAAs in a certain redshift slice. This work suggests that LAEs trace normal star-forming galaxies in the low-mas

Keywords
  1. galaxies
  2. spectroscopy
  3. redshifted
  4. line-intensities
  5. ultraviolet-astronomy
Bibliographic source Bibcode
2017MNRAS.468.1123S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/468/1123
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/468/1123
Document Object Identifer DOI
doi:10.26093/cds/vizier.74681123

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/468/1123
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/468/1123
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/468/1123
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/468/1123/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/468/1123/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/468/1123/table2?

History

2020-01-31T12:25:51Z
Resource record created
2020-01-31T12:25:51Z
Created
2024-08-17T20:18:26Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr