%0 Generic %1 santos2014reversal %A Santos, Joana S. %A Altieri, . Bruno %A Valtchanov, Ivan %A Nastasi, Alessandro %A Böhringer, Hans %A Cresci, Giovanni %A Elbaz, David %A Fassbender, Rene %A Rosati, Piero %A Tozzi, Paolo %A Verdugo, Miguel %D 2014 %K cluster density high-z sfr %T The reversal of the SF-density relation in a massive, X-ray selected galaxy cluster at z=1.58: results from Herschel %U http://arxiv.org/abs/1412.5188 %X Dusty, star-forming galaxies have a critical role in the formation and evolution of massive galaxies in the Universe. Using deep far-infrared imaging in the range 100-500um obtained with the Herschel telescope, we investigate the dust-obscured star formation in the galaxy cluster XDCP J0044.0-2033 at z=1.58, the most massive cluster at z >1.5, with a measured mass M200= 4.7x10$^14$ Msun. We perform an analysis of the spectral energy distributions (SEDs) of 12 cluster members (5 spectroscopically confirmed) detected with >3$\sigma$ significance in the PACS maps, all ULIRGs. The individual star formation rates (SFRs) lie in the range 155-824 Ms/yr, with dust temperatures of 24$\pm$35 K. We measure a strikingly high amount of star formation (SF) in the cluster core, SFR (< 250 kpc) > 1875$\pm$158 Ms/yr, 4x higher than the amount of star formation in the cluster outskirts. This scenario is unprecedented in a galaxy cluster, showing for the first time a reversal of the SF-density relation at z~1.6 in a massive cluster.

@misc{santos2014reversal, abstract = {Dusty, star-forming galaxies have a critical role in the formation and evolution of massive galaxies in the Universe. Using deep far-infrared imaging in the range 100-500um obtained with the Herschel telescope, we investigate the dust-obscured star formation in the galaxy cluster XDCP J0044.0-2033 at z=1.58, the most massive cluster at z >1.5, with a measured mass M200= 4.7x10$^{14}$ Msun. We perform an analysis of the spectral energy distributions (SEDs) of 12 cluster members (5 spectroscopically confirmed) detected with >3$\sigma$ significance in the PACS maps, all ULIRGs. The individual star formation rates (SFRs) lie in the range 155-824 Ms/yr, with dust temperatures of 24$\pm$35 K. We measure a strikingly high amount of star formation (SF) in the cluster core, SFR (< 250 kpc) > 1875$\pm$158 Ms/yr, 4x higher than the amount of star formation in the cluster outskirts. This scenario is unprecedented in a galaxy cluster, showing for the first time a reversal of the SF-density relation at z~1.6 in a massive cluster.}, added-at = {2014-12-18T09:03:56.000+0100}, author = {Santos, Joana S. and Altieri, . Bruno and Valtchanov, Ivan and Nastasi, Alessandro and Böhringer, Hans and Cresci, Giovanni and Elbaz, David and Fassbender, Rene and Rosati, Piero and Tozzi, Paolo and Verdugo, Miguel}, biburl = {https://www.bibsonomy.org/bibtex/2f3303e85fd99fc4236542eb8f2c165bb/miki}, description = {[1412.5188] The reversal of the SF-density relation in a massive, X-ray selected galaxy cluster at z=1.58: results from Herschel}, interhash = {8f7946556123e7773f703ecf2d39fc30}, intrahash = {f3303e85fd99fc4236542eb8f2c165bb}, keywords = {cluster density high-z sfr}, note = {cite arxiv:1412.5188Comment: Letter accepted for publication in MNRAS, ESA Press Release on 18 December 2014}, timestamp = {2014-12-18T09:03:56.000+0100}, title = {The reversal of the SF-density relation in a massive, X-ray selected galaxy cluster at z=1.58: results from Herschel}, url = {http://arxiv.org/abs/1412.5188}, year = 2014 }