%0 Generic %1 agarwal2015detecting %A Agarwal, Bhaskar %A Johnson, Jarrett L. %A Zackrisson, Erik %A Labbe, Ivo %A Bosch, Frank C. van den %A Natarajan, Priyamvada %A Khochfar, Sadegh %D 2015 %K black collapse direct hole %T Detecting Direct Collapse Black Holes: making the case for CR7 %U http://arxiv.org/abs/1510.01733 %X We propose that one of the sources in the recently detected system CR7 by Sobral et al. (2015) through spectro-photometric measurements at $z = 6.6$ harbors a direct collapse blackhole (DCBH). We argue that the LW radiation field required for direct collapse in source A is provided by sources B and C. By tracing the LW production history and star formation rate over cosmic time for the halo hosting CR7 in a $Łambda$CDM universe, we demonstrate that a DCBH could have formed at $z20$. The spectrum of source A is well fit by nebular emission from primordial gas around a BH with MBH $4.4 10^6 \ M_ødot$ accreting at a 40% of the Eddington rate, which strongly supports our interpretation of the data. Combining these lines of evidence, we argue that CR7 might well be the first DCBH candidate.

@misc{agarwal2015detecting, abstract = {We propose that one of the sources in the recently detected system CR7 by Sobral et al. (2015) through spectro-photometric measurements at $z = 6.6$ harbors a direct collapse blackhole (DCBH). We argue that the LW radiation field required for direct collapse in source A is provided by sources B and C. By tracing the LW production history and star formation rate over cosmic time for the halo hosting CR7 in a $\Lambda$CDM universe, we demonstrate that a DCBH could have formed at $z\sim 20$. The spectrum of source A is well fit by nebular emission from primordial gas around a BH with MBH $\sim 4.4 \times 10^6 \ M_{\odot}$ accreting at a 40% of the Eddington rate, which strongly supports our interpretation of the data. Combining these lines of evidence, we argue that CR7 might well be the first DCBH candidate.}, added-at = {2015-10-08T10:22:09.000+0200}, author = {Agarwal, Bhaskar and Johnson, Jarrett L. and Zackrisson, Erik and Labbe, Ivo and Bosch, Frank C. van den and Natarajan, Priyamvada and Khochfar, Sadegh}, biburl = {https://www.bibsonomy.org/bibtex/253cffdccc1e9095d0604cea0f24fffee/miki}, description = {[1510.01733] Detecting Direct Collapse Black Holes: making the case for CR7}, interhash = {6616217862cc8130d7e0ece0613035f1}, intrahash = {53cffdccc1e9095d0604cea0f24fffee}, keywords = {black collapse direct hole}, note = {cite arxiv:1510.01733Comment: 7 pages, 4 figures. Submitted to MNRAS}, timestamp = {2015-10-08T10:22:09.000+0200}, title = {Detecting Direct Collapse Black Holes: making the case for CR7}, url = {http://arxiv.org/abs/1510.01733}, year = 2015 }