Guillaume Belanger

General Relativistic Flux Modulations from Disk Instabilities in Sagittarius A* (2007)

Falanga, Maurizio, Melia, Fulvio, Tagger, Michel, Goldwurm, Andrea, Belanger, Guillaume

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 region only a few...

Probing the Density in the Galactic Center Region: Wind-Blown Bubbles and High-Energy Proton Constraints (2006)

Fryer, Christopher L., Liu, Siming, Rockefeller, Gabriel, Hungerford, Aimee, Belanger, Guillaume

Recent observations of the Galactic center in high-energy gamma-rays (above 0.1TeV) have opened up new ways to study this region, from understanding the emission source of these high-energy photons...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, Terrier, Regis, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio, Terrier, Regis

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, Terrier, Regis, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, Terrier, Regis, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, Terrier, Regis, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

A Persistent High-Energy Flux from the Heart of the Milky Way : Integral's view of the Galactic Center (2006)

Belanger, Guillaume, Goldwurm, Andrea, Renaud, Matthieu, Terrier, Regis, Melia, Fulvio, Lund, Niels, ...

The Ibis/Isgri imager on Integral detected for the first time a hard X-ray source, IGR J17456-2901, located within 1' of Sgr A* over the energy range 20-100 keV. Here we present the results of a...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, Terrier, Regis, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

A Persistent High-Energy Flux from the Heart of the Milky Way : Integral's view of the Galactic Center (2006)

Belanger, Guillaume, Goldwurm, Andrea, Renaud, Matthieu, Terrier, Regis, Melia, Fulvio, Lund, Niels, ...

The Ibis/Isgri imager on Integral detected for the first time a hard X-ray source, IGR J17456-2901, located within 1' of Sgr A* over the energy range 20-100 keV. Here we present the results of a...

A Persistent High-Energy Flux from the Heart of the Milky Way : Integral's view of the Galactic Center (2006)

Belanger, Guillaume, Goldwurm, Andrea, Renaud, Matthieu, Terrier, Regis, Melia, Fulvio, Lund, Niels, ...

The Ibis/Isgri imager on Integral detected for the first time a hard X-ray source, IGR J17456-2901, located within 1' of Sgr A* over the energy range 20-100 keV. Here we present the results of a...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, Terrier, Regis, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

A Persistent High-Energy Flux from the Heart of the Milky Way : Integral's view of the Galactic Center (2006)

Belanger, Guillaume, Goldwurm, Andrea, Renaud, Matthieu, Terrier, Regis, Melia, Fulvio, Lund, Niels, ...

The Ibis/Isgri imager on Integral detected for the first time a hard X-ray source, IGR J17456-2901, located within 1' of Sgr A* over the energy range 20-100 keV. Here we present the results of a...

Periodic Modulations in an X-ray Flare from Sagittarius A* (2006)

Belanger, Guillaume, Terrier, Regis, De Jager, Okkie, Goldwurm, Andrea, Melia, Fulvio

We present the highly significant detection of a quasi-periodic flux modulation with a period of 22.2 min seen in the X-ray data of the Sgr A* flare of 2004 August 31. This flaring event, which...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

A Persistent High-Energy Flux from the Heart of the Milky Way : Integral's view of the Galactic Center (2005)

Belanger, Guillaume, Goldwurm, Andrea, Renaud, Matthieu, Terrier, Regis, Melia, Fulvio, Lund, Niels, ...

The Ibis/Isgri imager on Integral detected for the first time a hard X-ray source, IGR J17456-2901, located within 1' of Sgr A* over the energy range 20-100 keV. Here we present the results of a...

A Persistent High-Energy Flux from the Heart of the Milky Way : Integral's view of the Galactic Center (2005)

Belanger, Guillaume, Goldwurm, Andrea, Renaud, Matthieu, Terrier, Regis, Melia, Fulvio, Lund, Niels, ...

The Ibis/Isgri imager on Integral detected for the first time a hard X-ray source, IGR J17456-2901, located within 1' of Sgr A* over the energy range 20-100 keV. Here we present the results of a...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Repeated X-ray Flaring Activity in Sagittarius A* (2005)

Belanger, Guillaume, Goldwurm, Andrea, Melia, Fulvio, Yusef-Zadeh, Farah, Ferrando, Philippe, Porquet, Delphine, ...

Investigating the spectral and temporal characteristics of the X-rays coming from Sagittarius A* (Sgr A*) is essential to our development of a more complete understanding of the emission mechanisms...

Contribution of point sources to the soft gamma-ray Galactic emission (2004)

Terrier, Regis, Lebrun, Francois, Belanger, Guillaume, Goldwurm, Andrea, Strong, Andrew W., Schoenfelder, Volker, ...

The nature of the soft gamma-ray (20-200 keV) Galactic emission has been a matter of debate for a long time. Previous experiments have tried to separate the point source contribution from the real...