0000000000377111

AUTHOR

Michael Cherry

showing 3 related works from this author

The MEGA Project for Medium Energy Gamma-ray Astronomy

2006

The Medium Energy Gamma-ray Astronomy (MEGA) telescope concept will soon be proposed as a MIDEX mission. This mission would enable a sensitive all-sky survey of the medium-energy gamma-ray sky (0.4–50 MeV) and bridge the huge sensitivity gap between the COMPTEL and OSSE experiments on the Compton Gamma Ray Observatory and the visionary Advanced Compton Telescope (ACT) mission. The scientific goals include compiling a much larger catalog of sources in this energy range, performing far deeper searches for supernovae, better measuring the galactic continuum and line emissions, and identifying the components of the cosmic diffuse gamma-ray emission. MEGA records and images gamma rays by complet…

PhysicsCOSMIC cancer databaseAstrophysics::High Energy Astrophysical PhenomenaCompton telescopemedia_common.quotation_subjectAstrophysics::Instrumentation and Methods for AstrophysicsGamma rayAstronomyAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGamma-ray astronomyAstrophysicslaw.inventionTelescopeSupernovaSpace and Planetary ScienceObservatorySkylawAstrophysics::Galaxy Astrophysicsmedia_commonChinese Journal of Astronomy and Astrophysics
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X-RAY AND OPTICAL OBSERVATIONS OF A 0535+26

2011

We present recent contemporaneous X-ray and optical observations of the Be/X-ray binary system A\,0535+26 with the \textit{Fermi}/Gamma-ray Burst Monitor (GBM) and several ground-based observatories. These new observations are put into the context of the rich historical data (since $\sim$1978) and discussed in terms of the neutron star Be-disk interaction. The Be circumstellar disk was exceptionally large just before the 2009 December giant outburst, which may explain the origin of the unusual recent X-ray activity of this source. We found a peculiar evolution of the pulse profile during this giant outburst, with the two main components evolving in opposite ways with energy. A hard 30-70 mH…

High Energy Astrophysical Phenomena (astro-ph.HE)PhysicsBrightnessOscillationAstrophysics::High Energy Astrophysical PhenomenaX-rayFOS: Physical sciencesAstronomy and AstrophysicsContext (language use)AstrophysicsNeutron starSpace and Planetary ScienceAstrophysics::Solar and Stellar AstrophysicsGeneral patternAstrophysics - High Energy Astrophysical PhenomenaLine (formation)Fermi Gamma-ray Space TelescopeThe Astrophysical Journal
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MEGA: a medium-energy gamma-ray astronomy mission concept

2005

The Medium Energy Gamma-ray Astronomy (MEGA) telescope concept will soon be proposed as a MIDEX mission. This mission would enable a sensitive all-sky survey of the medium-energy gamma-ray sky (0.4 - 50 MeV) and bridge the huge sensitivity gap between the COMPTEL and OSSE experiments on the Compton Gamma Ray Observatory, the SPI and IBIS instruments on INTEGRAL, and the visionary Advanced Compton Telescope (ACT) mission. The scientific goals include, among other things, compiling a much larger catalog of sources in this energy range, performing far deeper searches for supernovae, better measuring the galactic continuum and line emissions, and identifying the components of the cosmic diffuse…

PhysicsPhotonAstrophysics::High Energy Astrophysical PhenomenaCompton telescopeAstrophysics::Instrumentation and Methods for AstrophysicsGamma rayAstronomyAstrophysicsGamma-ray astronomyScintillatorlaw.inventionTelescopePair productionlawObservatorySPIE Proceedings
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