We propose Herschel-SPIRE imaging of a 14x14 field (corresponding to 7.1 Mpc x 7.1 Mpc) around the recentlydiscovered cluster CL1449+0856 at redshift z=2.07. This structure is the most distant X-ray luminous galaxy cluster known to date, traced by a strongoverdensity of red compact galaxies. Up to now, we securely identified 21 cluster members and our Spitzer-MIPS 24micron observations reveal a very high degree of star-forming activity in the cluster core. With our SPIRE imaging, we aim to reveal obscured star-formation activity within and around this evolved galaxy cluster as expected around a rapidlyassembling high-z halo, as already indicated by our very recently obtained APEX-LABOCA imaging. We will search for massive dusty starbursts as cluster members, identify and characterize the counterparts of LABOCA SMGs, determine SEDs and dust temperatures of our sources and compare the properties of our IR-bright cluster members with SMGs inblank fields. This project will push the study of massive dusty starbursts in established clusters to the highest possible redshifts.
Publication
Revealing dust-obscured star formation in CLJ1449+0856 a cluster at z = 2 | Smith C. M. A. et al. | Monthly Notices of the Royal Astronomical Society | null | null | 2019MNRAS.486.4304S |
A flat trend of star formation rate with X-ray luminosity of galaxies hosting AGN in the SCUBA-2 Cosmology Legacy Survey | Ramasawmy Joanna et al. | Monthly Notices of the Royal Astronomical Society | null | null | 2019MNRAS.486.4320R |
Instrument
SPIRE_SpirePhoto_large
Temporal Coverage
2013-01-04T01:48:25Z/2013-01-04T05:41:16Z
Version
SPG v14.1.0
Mission Description
Herschel was launched on 14 May 2009! It is the fourth cornerstone mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
European Space Agency, dannerbauer et al., 2013, 'Revealing dusty starbursts around an X-ray emitting galaxy cluster at z=2.07', SPG v14.1.0, European Space Agency, https://doi.org/10.5270/esa-xlqm0qi