2026-06-28T20:30:27Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/451072023-08-26T23:57:09Zcom_20.500.14352_14col_20.500.14352_15

Deep Herschel view of obscured star formation in the Bullet cluster Pérez González, Pablo Guillermo otros, ... 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. 2023-06-20T04:15:57Z 2023-06-20T04:15:57Z 2023-06-20T04:15:57Z 2010-07 journal article https://hdl.handle.net/20.500.14352/45107 0004-6361 10.1051/0004-6361/201014681 eng open access EDP Sciencies