Ryan Hickox

Academic Appointments

Professor of Physics and Astronomy

Professor Hickox is an observational astrophysicist with primary interests in supermassive black holes and the evolution of galaxies. He has a B.S. in Physics (2000) from Yale University and a Ph.D. in Astronomy (2007) from Harvard University. He held postdoctoral fellowships at the Smithsonian Astrophysical Observatory and Durham University in the UK, and joined Dartmouth College in December 2011. His research has been funded by NASA, the National Science Foundation (including a CAREER award), and an Alfred P. Sloan Research Fellowship. Professor Hickox also serves as the House Professor for West House.

241 Wilder
HB 6127
Physics and Astronomy
B.S. Yale University
Ph.D. Harvard University

Selected Publications

Christopher M. Carroll, Ryan C. Hickox, Alberto Masini, Lauranne Lanz, Roberto J. Assef, Daniel Stern, Chien-Ting J. Chen, "A Large Population of Luminous Active Galactic Nuclei Lacking X-ray Detections: Evidence for Heavy Obscuration?”, The Astrophysical Journal (2021) 908, 185

Brumback, M. C., Hickox, R. C., Fürst, F. S., Pottschmidt, K., Tomsick, J. A., Wilms, J., "Modeling the Precession of the Warped Inner Accretion Disk in the Pulsars LMC X-4 and SMC X-1 with NuSTAR and XMM-Newton", The Astrophysical Journal, 888 (2020), 185

Rupke, David S. N. et al., "A 100-kiloparsec wind feeding the circumgalactic medium of a massive compact galaxy”, Nature, 574 (2019), 643

Hickox, R. C. & Alexander, D. M, "Obscured Active Galactic Nuclei", Annual Review of Astronomy and Astrophysics, 56 (2018), 625

DiPompeo, M. A.; Hickox, R. C.; Myers, A. D.; Geach, J. E., "A unifying evolutionary framework for infrared-selected obscured and unobscured quasar host haloes", 2017, Monthly Notices of the Royal Astronomical Society, 464, 3526

M. L. Jones, R. C. Hickox , C. S. Black, K. N. Hainline, M. A. DiPompeo, A. D. Goulding, "The Intrinsic Eddington Ratio Distribution of Active Galactic Nuclei in Star-forming Galaxies from the Sloan Digital Sky Survey", 2016, The Astrophysical Journal, 826, 12

Civano, F, Hickox, RC et al., "The Nustar Extragalactic Surveys: Overview and Catalog from the COSMOS Field", The Astrophysical Journal, 808 (2015) 2

J. E. Geach, R. C. Hickox, A. M. Diamond-Stanic, M. Krips, G. H. Rudnick, C. A. Tremonti, P. H. Sell , A. L. Coil, J. Moustakas, "Stellar feedback as the origin of an extended molecular outflow in a starburst galaxy", Nature, 516 (2014) 68

R. C. Hickox, J. R. Mullaney, D. M. Alexander, C.-T. J. Chen, K. N. Hainline, F. M. Civano, A. D. Goulding,  “Black hole variability and the star formation-AGN connection: Do all star-forming galaxies host an AGN?”, The Astrophysical Journal, 782 (2014) 9

Alexander, DM & Hickox, RC, “What Drives the Growth of Black Holes?”, New Astronomy Reviews, 46 (2012) 93

Hickox, RC et al. , “The LABOCA Survey of the Extended Chandra Deep Field South: Clustering of submillimetre galaxies”, Monthly Notices of the Royal Astronomical Society , 421 (2012) 284

Hickox, RC et al. , "Clustering of obscured and unobscured quasars in the Boötes Field: placing rapidly growing black holes in the cosmic web”, The Astrophysical Journal, 731 (2011) 117

Hickox, RC et al., "Host galaxies, clustering, Eddington ratios, and evolution of radio, X-ray, and infrared-selected AGNs", The Astrophysical Journal, 696 (2009) 891

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Works in progress

Connection between supermassive black hole growth and star formation in galaxies with Herschel and Chandra data; Spectral energy distributions, selection, and clustering of obscured quasars with SDSS, WISE, SALT, and NuSTAR; X-ray stacking analyses with Chandra and NuSTAR