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Hubble Fellow
University of Michigan Department of Astronomy922 Dennison Building500 Church Street Ann Arbor, MI 48109-1042
Office Location(s): 922 Dennison Phone: 734.764.6426 Fax: 734.763.6317 degenaar@umich.edu Research Website
PhD, University of Amsterdam/The Netherlands | Hubble Fellow | Key Collaborators: Jon Miller, Elena Gallo
Multi-wavelength observations of X-ray binaries
Nathalie Degenaar is investigating the properties of X-ray binaries, particularly at low luminosities. X-ray binaries are star pairs in which one has evolved into a compact object — a neutron star or black hole — that draws material from its companion star. This process is called accretion and results in the emission of X-rays. She studies the cooling of neutron star crusts after they have been heated during accretion episodes, which gives important insight into the interior composition of these enormously dense objects, where matter is exposed to extreme physical conditions. In addition, she investigates how accretion proceeds at very low X-ray luminosities and studies rare energetic thermonuclear explosions that occur on the surface of slowly accreting neutron stars. Degenaar primarily uses X-ray data from Chandra, XMM-Newton, and Swift. By complementing these with optical and infrared observations using the Magellan telescopes, she hopes to gain further insight into the physics of the accretion process at low X-ray luminosities.
Low-luminosity AGN, radio jets, binary evolution, accretion physics, population studies, UV emission of X-ray binaries.
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