TeV Gamma-Ray Observations of the Galactic Center

Abstract

We report a possible detection of TeV gamma-rays from the Galactic Center by the Whipple 10m gamma-ray telescope. Twenty-six hours of data were taken over an extended period from 1995 through 2003 resulting in a total significance of 3.7 standard deviations. The measured excess corresponds to an integral flux of \Flux above an energy of $2.8\mathrm{TeV}$, roughly 40% of the flux from the Crab Nebula at this energy. The 95% confidence region has an angular extent of about 15 arcmin and includes the position of Sgr A*. The detection is consistent with a point source and shows no evidence for variability.

References in corpus (15)

• The Structure of Cold Dark Matter Halos
• Closest Star Seen Orbiting the Supermassive Black Hole at the Centre of the Milky Way
• Chandra X-ray Spectroscopic Imaging of Sgr A* and the Central Parsec of the Galaxy
• Dark matter annihilation at the galactic center
• Nonthermal Electrons in Radiatively Inefficient Accretion Flow Models of Sagittarius A*
• Rapid X-ray flaring from the direction of the supermassive black hole at the Galactic Centre
• Observability of Gamma Rays from Dark Matter Neutralino Annihilations in the Milky Way Halo
• Variable Infrared Emission from the Supermassive Black Hole at the Center of the Milky Way
• A Jet-ADAF model for Sgr A*
• An Accretion-Induced X-ray Flare in Sgr A*
• Measurement of the Multi-TeV gamma-ray Flare-Spectra of Markarian 421 and Markarian 501
• A New Analysis Method for Reconstructing the Arrival Direction of TeV Gamma-rays Using a Single Imaging Atmospheric Cherenkov Telescope
• Detection of hard X-ray emission from the Galactic nuclear region with INTEGRAL
• A Kinship between the EGRET SNR's and Sgr A East
• Gamma Rays from Neutralino Annihilation

Cited by in corpus (115)

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• Stringent and Robust Constraints on the Dark Matter Annihilation Cross Section From the Region of the Galactic Center
• Fitting the Gamma-Ray Spectrum from Dark Matter with DMFIT: GLAST and the Galactic Center Region
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• Spectrum and variability of the Galactic Center VHE gamma-ray source HESS J1745-290
• TeV gamma-rays and the largest masses and annihilation cross sections of neutralino dark matter
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• Constraints on Cosmic Rays, Magnetic Fields, and Dark Matter from Gamma-Ray Observations of the Coma Cluster of Galaxies with VERITAS and Fermi
• VERITAS Deep Observations of the Dwarf Spheroidal Galaxy Segue 1
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• Inverse Compton Scenarios for the TeV Gamma-Ray Emission of the Galactic Centre
• TeV Emission from the Galactic Center Black-Hole Plerion
• Localising the VHE gamma-ray source at the Galactic Centre
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• Extracting the Gamma Ray Signal from Dark Matter Annihilation in the Galactic Center Region
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• VERITAS Observations of the Galactic Center Region at Multi-TeV Gamma-Ray Energies
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• Constraints on an Annihilation Signal from a Core of Constant Dark Matter Density around the Milky Way Center with H.E.S.S
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• Cosmic Ray Astronomy
• TeV Gamma-ray Astronomy: A Summary
• Dark matter dynamics in Galactic center
• Search for Dark Matter
• Diffuse Gamma-ray Emission from the Galactic Center - A Multiple Energy Injection Model
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• Pulsar Wind Nebulae and the Non-thermal X-Ray Emission of Millisecond Pulsars
• Indirect Detection of Little Higgs Dark Matter
• Reliability of Monte Carlo event generators for gamma ray dark matter searches
• Prospects For Detecting Dark Matter With GLAST In Light Of The WMAP Haze
• Angular Signatures of Dark Matter in the Diffuse Gamma Ray Background
• Observations of Sagittarius A* during the pericenter passage of the G2 object with MAGIC
• Simultaneous H.E.S.S. and Chandra observations of Sagittarius A* during an X-ray flare
• Spectral Study of the HESS J1745-290 Gamma-Ray Source as Dark Matter Signal
• The Supersymmetric Fine-Tuning Problem and TeV-Scale Exotic Scalars
• Dark Matter annihilation in Draco: new considerations of the expected gamma flux
• Gamma rays from the Galactic Centre region: a review
• A Possible Link Between the Galactic Center HESS Source and Sgr A*
• Very-high energy observations of the Galactic center region by VERITAS in 2010-2012
• Study of the Gamma-ray Spectrum from the Galactic Center in view of Multi-TeV Dark Matter Candidates
• VHE Emission from Magnetic Reconnection in the RIAF of SgrA*
• Stellar Orbit Constraints on Neutralino Annihilation at the Galactic Center
• Gamma-rays from millisecond pulsar population within the central stellar cluster in the Galactic Center
• A Leptonic Model of Steady High-Energy Gamma-Ray Emission from Sgr A${}^{\ast }$
• Sgr A East as a possible high energy neutron factory in the Galactic Centre
• Indirect Detection of Dirac Right-Handed Neutrino Dark Matter
• Dark matter and Colliders searches in the MSSM
• Disformal scalars as dark matter candidates: Branon phenomenology
• Analysis of the Very Inner Milky Way Dark Matter Distribution and Gamma-Ray Signals
• Constraining Dark Matter Properties with Gamma-Rays from the Galactic Center with Fermi-LAT
• Capture of a Red Giant by the Black Hole Sagittarius A* as a Possible Origin for the TeV Gamma Rays from the Galactic Center
• TeV Dark Matter Searches in the Extragalactic Gamma-Ray Sky
• Neutrino fluxes from Dark Matter in the HESS J1745-290 source at the Galactic Center
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• Hybrid model of GeV-TeV gamma ray emission from Galactic Center
• Antiproton signatures from astrophysical and dark matter sources at the galactic center
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• TeV Gamma Ray Astronomy
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• Experimental Ultra--High-Energy Cosmic Ray Physics
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• TeV-photon paradox and space with SU(2) fuzziness
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• Recent Topics on Very High Energy Gamma-ray Astronomy
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