We measure C III 1907,1909 A emission lines in eleven
gravitationally--lensed star-forming galaxies at z~1.6--3, finding much lower
equivalent widths than previously reported for fainter lensed galaxies (Stark
et al. 2014). While it is not yet clear what causes some galaxies to be strong
C III emitters, CIII emission is not a universal property of distant
star-forming galaxies. We also examine C III emission in 46 star-forming
galaxies in the local universe, using archival spectra from GHRS, FOS, and STIS
on HST, and IUE. Twenty percent of these local galaxies show strong C III
emission, with equivalent widths <-5 A. Three nearby galaxies show C III
emission equivalent widths as large as the most extreme emitters yet observed
in the distant universe; all three are Wolf-Rayet galaxies. At all redshifts,
strong C III emission may pick out low-metallicity galaxies experiencing
intense bursts of star formation. Such local C III emitters may shed light on
the conditions of star formation in certain extreme high-redshift galaxies.
Description
[1510.02542] C III] Emission in Star-Forming Galaxies Near and Far
%0 Generic
%1 rigby2015emission
%A Rigby, Jane R.
%A Bayliss, Matthew B.
%A Gladders, Michael D.
%A Sharon, Keren
%A Wuyts, Eva
%A Dahle, Hakon
%A Johnson, Traci
%A Pena-Guerrero, Maria
%D 2015
%K CIII] emission high ionisation line low redshift
%T C III Emission in Star-Forming Galaxies Near and Far
%U http://arxiv.org/abs/1510.02542
%X We measure C III 1907,1909 A emission lines in eleven
gravitationally--lensed star-forming galaxies at z~1.6--3, finding much lower
equivalent widths than previously reported for fainter lensed galaxies (Stark
et al. 2014). While it is not yet clear what causes some galaxies to be strong
C III emitters, CIII emission is not a universal property of distant
star-forming galaxies. We also examine C III emission in 46 star-forming
galaxies in the local universe, using archival spectra from GHRS, FOS, and STIS
on HST, and IUE. Twenty percent of these local galaxies show strong C III
emission, with equivalent widths <-5 A. Three nearby galaxies show C III
emission equivalent widths as large as the most extreme emitters yet observed
in the distant universe; all three are Wolf-Rayet galaxies. At all redshifts,
strong C III emission may pick out low-metallicity galaxies experiencing
intense bursts of star formation. Such local C III emitters may shed light on
the conditions of star formation in certain extreme high-redshift galaxies.
@misc{rigby2015emission,
abstract = {We measure C III] 1907,1909 A emission lines in eleven
gravitationally--lensed star-forming galaxies at z~1.6--3, finding much lower
equivalent widths than previously reported for fainter lensed galaxies (Stark
et al. 2014). While it is not yet clear what causes some galaxies to be strong
C III] emitters, CIII] emission is not a universal property of distant
star-forming galaxies. We also examine C III] emission in 46 star-forming
galaxies in the local universe, using archival spectra from GHRS, FOS, and STIS
on HST, and IUE. Twenty percent of these local galaxies show strong C III]
emission, with equivalent widths <-5 A. Three nearby galaxies show C III]
emission equivalent widths as large as the most extreme emitters yet observed
in the distant universe; all three are Wolf-Rayet galaxies. At all redshifts,
strong C III] emission may pick out low-metallicity galaxies experiencing
intense bursts of star formation. Such local C III] emitters may shed light on
the conditions of star formation in certain extreme high-redshift galaxies.},
added-at = {2015-10-12T09:52:36.000+0200},
author = {Rigby, Jane R. and Bayliss, Matthew B. and Gladders, Michael D. and Sharon, Keren and Wuyts, Eva and Dahle, Hakon and Johnson, Traci and Pena-Guerrero, Maria},
biburl = {https://www.bibsonomy.org/bibtex/2d739b92f3cd015f77946460fb99414c5/miki},
description = {[1510.02542] C III] Emission in Star-Forming Galaxies Near and Far},
interhash = {ac0440b0303800ccd4e354197301f55c},
intrahash = {d739b92f3cd015f77946460fb99414c5},
keywords = {CIII] emission high ionisation line low redshift},
note = {cite arxiv:1510.02542Comment: 4 figures, 1 table; Accepted for publication in ApJ Letters},
timestamp = {2015-10-12T09:52:36.000+0200},
title = {C III] Emission in Star-Forming Galaxies Near and Far},
url = {http://arxiv.org/abs/1510.02542},
year = 2015
}