%0 Generic %1 kato2016herschel %A Kato, Y. %A Matsuda, Y. %A Smail, Ian %A Swinbank, A. M. %A Hatsukade, B. %A Umehata, H. %A Tanaka, I. %A Saito, T. %A Iono, D. %A Tamura, Y. %A Kohno, K. %A Erb, D. K. %A Lehmer, B. D. %A Geach, J. E. %A Steidel, C. C. %A Alexander, D. M. %A Yamada, T. %A Hayashino, T. %D 2016 %K dusty formation protocluster star %R 10.1093/mnras/stw1237 %T Herschel protocluster survey: A search for dusty star-forming galaxies in protoclusters at z=2-3 %U http://arxiv.org/abs/1605.07370 %X We present a Herschel/SPIRE survey of three protoclusters at z=2-3 (2QZCluster, HS1700, SSA22). Based on the SPIRE colours (S350/S250 and S500/S350) of 250 $\mu$m sources, we selected high redshift dusty star-forming galaxies potentially associated with the protoclusters. In the 2QZCluster field, we found a 4-sigma overdensity of six SPIRE sources around 4.5' (~2.2 Mpc) from a density peak of H$\alpha$ emitters at z=2.2. In the HS1700 field, we found a 5-sigma overdensity of eight SPIRE sources around 2.1' (~1.0 Mpc) from a density peak of LBGs at z=2.3. We did not find any significant overdensities in SSA22 field, but we found three 500 $\mu$m sources are concentrated 3' (~1.4 Mpc) east to the LAEs overdensity. If all the SPIRE sources in these three overdensities are associated with protoclusters, the inferred star-formation rate densities are 10$^3$-10$^4$ times higher than the average value at the same redshifts. This suggests that dusty star-formation activity could be very strongly enhanced in z~2-3 protoclusters. Further observations are needed to confirm the redshifts of the SPIRE sources and to investigate what processes enhance the dusty star-formation activity in z~2-3 protoclusters.

@misc{kato2016herschel, abstract = {We present a Herschel/SPIRE survey of three protoclusters at z=2-3 (2QZCluster, HS1700, SSA22). Based on the SPIRE colours (S350/S250 and S500/S350) of 250 $\mu$m sources, we selected high redshift dusty star-forming galaxies potentially associated with the protoclusters. In the 2QZCluster field, we found a 4-sigma overdensity of six SPIRE sources around 4.5' (~2.2 Mpc) from a density peak of H$\alpha$ emitters at z=2.2. In the HS1700 field, we found a 5-sigma overdensity of eight SPIRE sources around 2.1' (~1.0 Mpc) from a density peak of LBGs at z=2.3. We did not find any significant overdensities in SSA22 field, but we found three 500 $\mu$m sources are concentrated 3' (~1.4 Mpc) east to the LAEs overdensity. If all the SPIRE sources in these three overdensities are associated with protoclusters, the inferred star-formation rate densities are 10$^3$-10$^4$ times higher than the average value at the same redshifts. This suggests that dusty star-formation activity could be very strongly enhanced in z~2-3 protoclusters. Further observations are needed to confirm the redshifts of the SPIRE sources and to investigate what processes enhance the dusty star-formation activity in z~2-3 protoclusters.}, added-at = {2016-05-25T12:28:30.000+0200}, author = {Kato, Y. and Matsuda, Y. and Smail, Ian and Swinbank, A. M. and Hatsukade, B. and Umehata, H. and Tanaka, I. and Saito, T. and Iono, D. and Tamura, Y. and Kohno, K. and Erb, D. K. and Lehmer, B. D. and Geach, J. E. and Steidel, C. C. and Alexander, D. M. and Yamada, T. and Hayashino, T.}, biburl = {https://www.bibsonomy.org/bibtex/211bd3426e41020aa9dcc9a5b544b0665/miki}, description = {[1605.07370] Herschel protocluster survey: A search for dusty star-forming galaxies in protoclusters at z=2-3}, doi = {10.1093/mnras/stw1237}, interhash = {b8863b4f065ebc2dad4cf7447d5854b7}, intrahash = {11bd3426e41020aa9dcc9a5b544b0665}, keywords = {dusty formation protocluster star}, note = {cite arxiv:1605.07370Comment: 15 pages, 5 figures, 12 tables, Accepted for publication in MNRAS}, timestamp = {2016-05-25T12:28:30.000+0200}, title = {Herschel protocluster survey: A search for dusty star-forming galaxies in protoclusters at z=2-3}, url = {http://arxiv.org/abs/1605.07370}, year = 2016 }