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Measuring the Accreting Stellar and Intermediate Mass Black Hole Populations in the Galaxy and Local Group
Jonathan Grindlay, Didier Barret, Tomaso Belloni +23
The population of stellar black holes (SBHs) in the Galaxy and galaxies generally is poorly known in both number and distribution. SBHs are the fossil record of the massive stars i…
Dynamics and Magnetization in Galaxy Cluster Cores Traced by X-ray Cold Fronts
Uri Keshet, Maxim Markevitch, Yuval Birnboim +1
Cold fronts (CFs) - density and temperature plasma discontinuities - are ubiquitous in cool cores of galaxy clusters, where they appear as X-ray brightness edges in the intracluste…
Constraining Parity Violation in Gravity with Measurements of Neutron-Star Moments of Inertia
Nicolas Yunes, Dimitrios Psaltis, Feryal Ozel +1
Neutron stars are sensitive laboratories for testing general relativity, especially when considering deviations where velocities are relativistic and gravitational fields are stron…
Evidence for a Black Hole Remnant in the Type IIL Supernova 1979C
D. J. Patnaude, A. Loeb, C. Jones
We present an analysis of archival X-ray observations of the Type IIL supernova SN 1979C. We find that its X-ray luminosity is remarkably constant at (6.5+/-0.1) x 10^38 erg/s over…
Identifying Supermassive Black Hole Binaries with Broad Emission Line Diagnosis
Yue Shen, Abraham Loeb
Double-peaked broad emission lines in Active Galactic Nuclei (AGNs) may indicate the existence of a bound supermassive black hole (SMBH) binary where two distinct broad line region…
Detecting Changing Polarization Structures in Sagittarius A* with High Frequency VLBI
Vincent L. Fish, Sheperd S. Doeleman, Avery E. Broderick +2
Sagittarius A* is the source of near infrared, X-ray, radio, and (sub)millimeter emission associated with the supermassive black hole at the Galactic Center. In the submillimeter r…