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Chad Hanna

Chad Hanna

Main Content

  • Associate Professor of Physics &
  • Astronomy and Astrophysics
  • Freed Early Career Professorship
104 Davey Lab #253
University Park, PA 16802
Email: crh184 [ AT ] psu [ DOT ] edu
Phone: (814) 865-2924


  1. Ph.D. (physics) Louisiana State University (2008)
  2. M.S. (physics) Louisiana State University (2006)
  3. B.S. (physics) The Pennsylvania State University (2004)



I am a gravitational-wave astrophysicist who focuses on detecting gravitational waves emitted by compact binary neutron stars or black holes with the Laser Interferometric Gravitational-wave Observatory (LIGO). Along with my colleagues, we detect the gravitational waves just prior to the merging of two neutron stars or black holes in near real-time, which enables joint electromagnetic and other astroparticle observations. 

Honors and Awards

  • Freed Early Career Professorship (2016)
  • NSF CAREER award (2015)

Selected Publications

  1. "GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral" B. P. Abbott et al. Phys. Rev. Lett. 119 161101  (2017)

  2. "Analysis framework for the prompt discovery of compact binary mergers in gravitational-wave data" Cody Messick et al. Phys. Rev. D 95 042001 (2017)

  3. "GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence." Abbot et al Physical Review Letters 116 241103 (2016)

  4. "Second Einstein Telescope mock data and science challenge: Low frequency binary neutron star data analysis" Duncan Meacher, Kipp Cannon, Chad Hanna, Tania Regimbau, BS Sathyaprakash Physical Review D 93 2 024018 (2016)

  5. "Parameter estimation for binary neutron-star coalescences with realistic noise during the Advanced LIGO era" Christopher PL Berry, Ilya Mandel, Hannah Middleton, Leo P Singer, Alex L Urban, Alberto Vecchio, Salvatore Vitale, Kipp Cannon, Ben Farr, Will M Farr, Philip B Graff, Chad Hanna, Carl-Johan Haster, Satya Mohapatra, Chris Pankow, Larry R Price, Trevor Sidery, John Veitch The Astrophysical Journal 804 2 114 (2015)

  6. "The first two years of electromagnetic follow-up with advanced LIGO and Virgo" L. Singer, L. R. Price B. Farr, A. L. Urban, C. Pankow S. Vitale, J. Veitch, W. M. Farr, C. Hanna, K. Cannon, T. Downes, P. Graff, C. Haster, I. Mandel, T. Sidery, A. Vecchio. ApJ 795 105 (2014)
  7. "Utility of Galaxy Catalogs for Following up Gravitational Waves from Binary Neutron Star Mergers with Wide-field Telescopes." C. Hanna, I. Mandel, W. Vousden. ApJ 784 8 (2014)
  8. "Improving the sensitivity of a search for coalescing binary black holes with non-precessing spins in gravitational wave data" S. Privitera, S. R.P. Mohapatra, P. Ajith, K. Cannon, N. Fotopoulos, M. A. Frei, C. Hanna, A. J. Weinstein, J. T. Whelan. PRD 89 024003 (2014)

  9. "Toward early-warning detection of gravitational waves from compact binary coalescence"  K. Cannon, R. Cariou, A. Chapman, M. Crispin-Ortuzar, N. Fotopoulos, M. Frei, C. Hanna, E. Kara, D. Keppel, L. Liao, S. Privitera, A. Searle, L. Singer, A. Weinstein. ApJ 748 136 (2012)

Research Interests

  • Gravitational-Wave Astrophysics
  • Multimessenger Astrophysics
  • Compact Binary Systems
  • Black Holes
  • Neutron Stars
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