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34 papers · 1 filter
Search for Primordial Black Holes with SGARFACE
M. Schroedter, F. Krennrich, S. LeBohec +7
The Short GAmma Ray Front Air Cherenkov Experiment (SGARFACE) uses the Whipple 10 m telescope to search for bursts of rays. SGARFACE is sensitive to bursts with duration from a…
Rapid Formation of Icy Super-Earths and the Cores of Gas Giant Planets
Scott J. Kenyon, Benjamin C. Bromley
We describe a coagulation model that leads to the rapid formation of super-Earths and the cores of gas giant planets. Interaction of collision fragments with the gaseous disk is th…
Towards micro-arcsecond spatial resolution with Air Cherenkov Telescope arrays as optical intensity interferometers
W. J. de Wit, S. LeBohec, J. A. Hinton +3
In this poster contribution we highlight the equivalence between an Imaging Air Cherenkov Telescope (IACT) array and an Intensity Interferometer for a range of technical requiremen…
The Anisotropic Spatial Distribution of Hypervelocity Stars
Warren R. Brown, Margaret J. Geller, Scott J. Kenyon +1
We study the distribution of angular positions and angular separations of unbound hypervelocity stars (HVSs). HVSs are spatially anisotropic at the 3-sigma level. The spatial aniso…
Dark Stars: Dark Matter in the First Stars leads to a New Phase of Stellar Evolution
Katherine Freese, Douglas Spolyar, Anthony Aguirre +4
The first phase of stellar evolution in the history of the universe may be Dark Stars, powered by dark matter heating rather than by fusion. Weakly interacting massive particles, w…
Low frequency radio spectrum and spectral turnover of LS 5039
Sagar Godambe, Subir Bhattacharyya, Nilay Bhatt +1
LS 5039, a possible black hole x-ray binary, was recently observed with Giant Meterwave Radio Telescope. The observed spectrum presented here shows that the spectrum is inverted at…