43 citations
- University of ArizonaUS5 papers
- Astrophysique, Instrumentation et ModélisationFR2 papers
- CEA Paris-SaclayFR2 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2 papers
- Délégation Paris 7FR2 papers
- European Space Astronomy CentreES2 papers
- Laboratoire AstroParticule et CosmologieFR2 papers
- Los Alamos National LaboratoryUS2 papers
- The University of AdelaideAU2 papers
- Université Paris CitéFR2 papers
- Australia Telescope National FacilityAU1 paper
5 papers · 1 filter
Modulated X-ray Emissivity near the Stress Edge in Sgr A*
M. Falanga, F. Melia, M. Prescher +2
Sgr A* is thought to be the radiative manifestation of a ~3.6E6 Msun supermassive black hole at the Galactic center. Its mm/sub-mm spectrum and its flare emission at IR and X-ray w…
Radio Synchrotron Emission from Secondary Leptons in the Vicinity of Sgr A*
Roland M. Crocker, David Jones, David R. Ballantyne +1
A point-like source of ~TeV gamma-rays has recently been seen towards the Galactic center by HESS and other air Cerenkov telescopes. In recent work (Ballantyne et al. 2007), we dem…
General Relativistic Flux Modulations from Disk Instabilities in Sagittarius A*
Maurizio Falanga, Fulvio Melia, Michel Tagger +2
Near-IR and X-ray flares have been detected from the supermassive black hole Sgr A* at the center of our Galaxy with a (quasi)-period of ~17-20 minutes, suggesting an emission regi…
A Possible Link Between the Galactic Center HESS Source and Sgr A*
D. R. Ballantyne, Fulvio Melia, Siming Liu +1
Recently, HESS and other air Cerenkov telescopes have detected a source of TeV gamma-rays coincident with the Galactic center. It is not yet clear whether the gamma-rays are produc…
A Testable the Stochastic Acceleration Model for Flares in Sagittarius A*
Siming Liu, Vahe Petrosian, Fulvio Melia +1
The near-IR and X-ray flares in Sagittarius A* are believed to be produced by relativistic electrons via synchrotron and synchrotron self-Comptonization, respectively. These electr…