Flaring Activity of Sgr A* During the Passage of the G2 Cloud

Farhad Yusef-Zadeh, , A. Bushouse, Howard , D. Cotton, William , N. Grosso, (1) , Daryl Haggard, , O. Heinke, Craig , E. Mossoux , (1) , D. Porquet, (1) , A. Roberts, Douglas , M. Wardle,

1 ObAS - Observatoire astronomique de Strasbourg

Preliminary results of our monitoring of Sgr A* in coordination with Chandra, XMM and HST will be presented. The main focus will be on the cross correlation analysis of radio and X-ray flare emission on September 12, 2013 when a luminous X-ray flare was detected by Chandra. The peak of flare emission at 3.5cm was found to be delayed by more than 130 minutes when compared to the peak of the X-ray emission. The cross correlation of the peak emission at radio and X-rays is consistent with an adiabatic expansion modelof flare emission.

Domaines: Planète et Univers [physics]; Astrophysique [astro-ph]; Astrophysique galactique [astro-ph.GA]; Phénomènes cosmiques de haute energie [astro-ph.HE]

Farhad Yusef-Zadeh,, A. Bushouse, Howard, D. Cotton, William, N. Grosso,, Daryl Haggard,, et al.. Flaring Activity of Sgr A* During the Passage of the G2 Cloud. American Astronomical Society, HEAD meeting #14, 2014, Chicago, United States. ⟨hal-02327527⟩