Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Hickox, R. C."'
Autor:
Satyapal, S., Secrest, N. J., Rothberg, B., O’Connor, J. A., Ellison, S. L., Hickox, R. C., Constantin, A., Gliozzi, M., Rosenberg, and J. L.
There is mounting evidence that supermassive black holes (SMBHs) form and grow in bulgeless galaxies. However, a robust determination of the fraction of active galactic nuclei (AGNs) in bulgeless galaxies, an important constraint to models of SMBH se
Externí odkaz:
http://hdl.handle.net/10150/621387
http://arizona.openrepository.com/arizona/handle/10150/621387
http://arizona.openrepository.com/arizona/handle/10150/621387
Autor:
Zhao, X., Civano, F., Fornasini, F. M., Alexander, D. M., Cappelluti, N., Chen, C. T., Cohen, S. H., Elvis, M., Gandhi, P., Grogin, N. A., Hickox, R. C., Jansen, R. A., Koekemoer, A., Lanzuisi, G., Maksym, W. P., Masini, A., Rosario, D. J., Ward, M. J., Willmer, C. N. A., Windhorst, R. A.
We present the $NuSTAR$ extragalactic survey of the $James$ $Webb$ $Space$ $Telescope$ ($JWST$) North Ecliptic Pole (NEP) Time-Domain Field. The survey covers a $\sim$0.16 deg$^2$ area with a total exposure of 681 ks acquired in a total of nine obser
Externí odkaz:
http://arxiv.org/abs/2109.13839
Autor:
Masini, A., Hickox, R. C., Carroll, C. M., Aird, J., Alexander, D. M., Assef, R. J., Bower, R., Brodwin, M., Brown, M. J. I., Chatterjee, S., Chen, C. -T. J., Dey, A., DiPompeo, M. A., Duncan, K. J., Eisenhardt, P. R. M., Forman, W. R., Gonzalez, A. H., Goulding, A. D., Hainline, K. N., Jannuzi, B. T., Jones, C., Kochanek, C. S., Kraft, R., Lee, K. -S., Miller, E. D., Mullaney, J., Myers, A. D., Ptak, A., Stanford, A., Stern, D., Vikhlinin, A., Wake, D. A., Murray, S. S.
We present a new, ambitious survey performed with the Chandra X-ray Observatory of the 9.3 deg$^2$ Bo\"otes field of the NOAO Deep Wide-Field Survey. The wide field probes a statistically representative volume of the Universe at high redshift. The Ch
Externí odkaz:
http://arxiv.org/abs/2009.03317
Autor:
Shen, Xuejian, Hopkins, Philip F., Faucher-Giguère, Claude-André, Alexander, D. M., Richards, Gordon T., Ross, Nicholas P., Hickox, R. C.
In this paper, we provide updated constraints on the bolometric quasar luminosity function (QLF) from $z=0$ to $z=7$. The constraints are based on an observational compilation that includes observations in the rest-frame IR, B band, UV, soft and hard
Externí odkaz:
http://arxiv.org/abs/2001.02696
Autor:
Jones, Mackenzie L., Hickox, R. C., Mutch, S. J., Croton, D. J., Ptak, A. F., DiPompeo, M. A.
We present a simple semi-numerical model designed to explore black hole growth and galaxy evolution. This method builds on a previous model for black hole accretion that uses a semi-numerical galaxy formation model and universal Eddington ratio distr
Externí odkaz:
http://arxiv.org/abs/1907.00981
Autor:
Hickox, R. C., Civano, F., Ballantyne, D. R., Balokovic, M., Boorman, P. G., Brandt, W. N., Canning, R. E. A., Fornasini, F., Gandhi, P., Jones, M. L., Lansbury, G. B., Lanz, L., Lanzuisi, G., Madsen, K. K., Marchesi, S., Masini, A., Ananna, T., Stern, D., Ricci, C.
The cosmic X-ray background (CXB), which peaks at an energy of ~30 keV, is produced primarily by emission from accreting supermassive black holes (SMBHs). The CXB therefore serves as a constraint on the integrated SMBH growth in the Universe and the
Externí odkaz:
http://arxiv.org/abs/1905.11439
Autor:
Assef, R. J., Brightman, M., Walton, D. J., Stern, D., Bauer, F. E., Blain, A. W., Diaz-Santos, T., Eisenhardt, P. R. M., Hickox, R. C., Jun, H. D., Psychogyios, A., Tsai, C. -W., Wu, J. W.
Hot Dust-Obscured Galaxies (Hot DOGs) are among the most luminous galaxies in the Universe. Powered by highly obscured, possibly Compton-thick, active galactic nuclei (AGNs), Hot DOGs are characterized by SEDs that are very red in the mid-IR yet domi
Externí odkaz:
http://arxiv.org/abs/1905.04320
We measure the average deflection of cosmic microwave background photons by quasars at $\langle z \rangle =1.7$. Our sample is selected from the Sloan Digital Sky Survey to cover the redshift range $0.9\leq z\leq2.2$ with absolute i-band magnitudes o
Externí odkaz:
http://arxiv.org/abs/1902.06955
Autor:
Geach, J. E., Tremonti, C., Diamond-Stanic, A. M., Sell, P. H., Kepley, A. A., Coil, A. L., Rudnick, G., Hickox, R. C., Moustakas, J., Yang, Yujin
We present Atacama Large Millimeter/submillimeter Array observations of a massive (M_stars~10^11 M_Sun) compact (r_e,UV~100 pc) merger remnant at z=0.66 that is driving a 1000 km/s outflow of cool gas, with no observational trace of an active galacti
Externí odkaz:
http://arxiv.org/abs/1807.09789
Autor:
DiPompeo, M. A., Hickox, R. C., Carroll, C. M., Runnoe, J. C., Mullaney, J. R., Fischer, T. C.
We explore the kinematics of ionized gas via the [O III] $\lambda$5007 emission lines in active galactic nuclei (AGN) selected on the basis of their mid-infrared (IR) emission, and split into obscured and unobscured populations based on their optical
Externí odkaz:
http://arxiv.org/abs/1803.00083