SIMBAD references

2010A&A...518L..14R - Astronomy and Astrophysics, volume 518, L14-14 (2010/7-2)

Deep Herschel view of obscured star formation in the Bullet cluster.

RAWLE T.D., CHUNG S.M., FADDA D., REX M., EGAMI E., PEREZ-GONZALEZ P.G., ALTIERI B., BLAIN A.W., BRIDGE C.R., FIEDLER A.K., GONZALEZ A.H., PEREIRA M.J., RICHARD J., SMAIL I., VALTCHANOV I., ZEMCOV M., APPLETON P.N., BOCK J.J., BOONE F., CLEMENT B., COMBES F., DOWELL C.D., DESSAUGES-ZAVADSKY M., ILBERT O., IVISON R.J., JAUZAC M., KNEIB J.-P., LUTZ D., PELLO R., RIEKE G.H., RODIGHIERO G., SCHAERER D., SMITH G.P., WALTH G.L., VAN DER WERF P. and WERNER M.W.

Abstract (from CDS):

We use deep, five band (100-500µm) data from the Herschel Lensing Survey (HLS) to fully constrain the obscured star formation rate, SFRFIR, 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 SFRFIR=144 ±14M☉/yr. On average, the background system contains brighter far-infrared (FIR) galaxies, with ∼50% higher SFRFIR (21 galaxies; 207±9M☉/yr). SFRs extrapolated from 24µm flux via recent templates (SFR24µm) agree well with SFRFIR for ∼60% of the cluster galaxies. In the remaining ∼40%, SFR24µm underestimates SFRFIR due to a significant excess in observed S100/S24 (rest frame S75/S18) compared to templates of the same FIR luminosity.

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Journal keyword(s): galaxies: clusters: individual: Bullet cluster - galaxies: star formation - infrared: galaxies - submillimeter: galaxies

Simbad objects: 1

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