TY - JOUR
T1 - The Nature of GRB-selected Submillimeter Galaxies: Hot and Young
AU - Michalowski, Michal
AU - Hjorth, J.
AU - Castro Cerón, J. M.
AU - Watson, D.
PY - 2008/1/1
Y1 - 2008/1/1
N2 - We present detailed fits of the spectral energy distributions (SEDs) of
four submillimeter galaxies selected by the presence of a gamma-ray
burst (GRB) event (GRBs 980703, 000210, 000418, and 010222). These faint
~3 mJy submillimeter emitters at redshift ~1 are characterized by an
unusual combination of long- and short-wavelength properties, namely
enhanced submillimeter and/or radio emission combined with optical
faintness and blue colors. We exclude an active galactic nucleus as the
source of long-wavelength emission. From the SED fits, we conclude that
the four galaxies are young (ages ~45 K) indicate that GRB host galaxies
are hotter, younger, and less massive counterparts to the
submillimeter-selected galaxies detected so far. Future facilities like
Herschel, the James Clerk Maxwell Telescope SCUBA-2, and ALMA will test
this hypothesis, enabling measurement of dust temperatures of fainter
GRB-selected galaxies.
AB - We present detailed fits of the spectral energy distributions (SEDs) of
four submillimeter galaxies selected by the presence of a gamma-ray
burst (GRB) event (GRBs 980703, 000210, 000418, and 010222). These faint
~3 mJy submillimeter emitters at redshift ~1 are characterized by an
unusual combination of long- and short-wavelength properties, namely
enhanced submillimeter and/or radio emission combined with optical
faintness and blue colors. We exclude an active galactic nucleus as the
source of long-wavelength emission. From the SED fits, we conclude that
the four galaxies are young (ages ~45 K) indicate that GRB host galaxies
are hotter, younger, and less massive counterparts to the
submillimeter-selected galaxies detected so far. Future facilities like
Herschel, the James Clerk Maxwell Telescope SCUBA-2, and ALMA will test
this hypothesis, enabling measurement of dust temperatures of fainter
GRB-selected galaxies.
U2 - 10.1086/523891
DO - 10.1086/523891
M3 - Article
VL - 672
SP - 817
EP - 824
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
ER -