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Daryl Haggard

Daryl Haggard’s research focuses on Sagittarius A*, the supermassive black hole at the heart of our Milky Way Galaxy. Haggard’s team uses radio, submillimeter, near infrared, and X-ray telescopes to probe the black hole’s exotic environment, where strong gravity plays a key role. Her team studies the interplay between distant growing supermassive black holes, or active galactic nuclei, and their host galaxies. They have also searched for X-ray flashes emitted from neutron stars and black holes when they collide.


Kavli Frontiers Fellow, National Academy of Sciences, 2014-2016.

CIERA Postdoctoral Fellow, Northwestern University, 2010-2014.

NASA Jenkins Predoctoral Fellow, University of Washington, 2005-2008.

Achievement Awards for College Scientists, San Francisco State U., 2001-2003.

NSF GK-12 Fellow, San Francisco State University, 2001-2002.

Relevant Publications

Haggard, D., Nynka, M., Ruan, J.R., Kalogera, V., Cenko, B., Evans, P., Kennea, J., "A Deep Chandra X-ray Study of Neutron Star Coalesence GW170817," ApJL, 848, L25, 2017.

Abbott, B.P., et al., "Multi-messenger Observations of a Binary Neutron Star Merger," ApJL, 848, L12, 2017.

Capellupo, D., Haggard, D., et al., "Simultaneous Monitoring of X-ray and Radio Flares in Sagittarius A*", Astrophysical Journal, 845, 35, 2017.

Ponti, G., et al., "A powerful flare from Sgr A* confirms the synchrotron nature of the X-ray emission," Monthly Notices of the Royal Astronomical Society, 468, 2447, 2017.

Haggard, D., Heinke, C., Hooper, D., Linden, T., "Low Mass X-ray Binaries in the Inner Galaxy: Implications for Millisecond Pulsars and the GeV Excess", Journal of Cosmology and Astroparticle Physics, 05, 056, 2017.

Corrales, L.R., Mon, B., Haggard, D., et al., "X-ray Scattering Echos and Ghost Halos From the Intergalactic Medium: Relation to the Nature of AGN Variability", Astrophysical Journal, 839, 76, 2017.

Capellupo, D.M., Waffelard-Fernandez, G., & Haggard, D., "A Comparison of Two Methods for Estimating Black Hole Spin in Active Galactic Nuclei," Astrophysical Journal Letters, 836, 8, 2017.



CIFAR Azrieli Global Scholar Gravity & the Extreme Universe


McGill University and the McGill Space InstitutePhysics


PhD, Astronomy University of Washington

MSc, Astronomy University of Washington

MSc, Physics San Francisco State University

BA, Philosophy St. John’s College Santa Fe



Ideas Related to Daryl Haggard

Gravity & the Extreme Universe | CIFAR Azrieli Global Scholars

CIFAR fellows part of first gravitational wave detection of colliding neutron stars

The observations have given astronomers an unprecedented opportunity For the first time, scientists have directly detected gravitational waves from the...