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163 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…
The June 2008 flare of Markarian 421 from optical to TeV energies
The Agile Collaboration, Webt Collaboration, Magic Collaboration +2
We present optical, X-ray, high energy ( GeV) and very high energy ( GeV; VHE) observations of the high-frequency peaked blazar Mrk 421 taken betwee…
Discovery of Very High-Energy Gamma-Ray Radiation from the BL Lac 1ES 0806+524
VERITAS Collaboration, V. Acciari, E. Aliu +90
The high-frequency-peaked BL-Lacertae object \objectname{1ES 0806+524}, at redshift z=0.138, was observed in the very-high-energy (VHE) gamma-ray regime by VERITAS between November…
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…
Extracting Information from the Gravitational Redshift of Compact Rotating Objects
Paul Nunez, Marek Nowakowski
When rotation is not taken into account, the measurement of the Gravitational Redshift can provide unique information about the compactness () of the star. Rotation alters the…