RT Journal Article
T1 Deep Herschel view of obscured star formation in the Bullet cluster
A1 Pérez González, Pablo Guillermo
A1 otros, ...
AB We use deep, five band (100–500 μm) data from the Herschel Lensing Survey (HLS) to fully constrain the obscured star formation rate, SFR_FIR, of galaxies in the Bullet cluster (z = 0.296), and a smaller background system (z = 0.35) in the same field. Herschel detects 23 Bullet cluster members with a total SFR_FIR = 144±14 M_⨀  yr^-1. On average, the background system contains brighter far-infrared (FIR) galaxies, with ~50% higher SFR_FIR (21 galaxies; 207± 9  M_⨀ yr^-1). SFRs extrapolated from 24 μm flux via recent templates (SFR_24 µm) agree well with SFRFIR for ~60% of the cluster galaxies. In the remaining ~40%, SFR_24 µm underestimates SFR_FIR due to a significant excess in observed S_100/S_24 (rest frame S_75/S_18) compared to templates of the same FIR luminosity.
PB EDP Sciencies
SN 0004-6361
YR 2010
FD 2010-07
LK https://hdl.handle.net/20.500.14352/45107
UL https://hdl.handle.net/20.500.14352/45107
LA eng
NO © ESO, 2010. Artículo firmado por 36 autores. This work is based in part on observations made with Herschel, a European Space Agency Cornerstone Mission with significant participation by NASA. Support for this work was provided by NASA through an award issued by JPL/Caltech.
NO National Aeronautics and Space Administration (NASA)
DS Docta Complutense
RD 7 abr 2025