A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole

Details A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole

2007-11-19

arxiv.org/abs/0711.2853v1

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, accepted for publication in PASJ Vol 60, second Suzaku special issue

Scientific paper

A time-variability study of the neutral iron line flux at 6.40keV in the Sgr B2 region from data of Suzaku and Chandra is presented. The highly ionized iron line at 6.68keV is due to Galactic Center Diffuse X-rays (GCDX), and is thus time invariable. By comparing the 6.68keV and 6.40keV line fluxes, we found that the 6.40keV flux from the SgrB2 complex region is time variable; particularly the giant molecular cloud M0.66-0.02, known as ``Sgr B2 cloud'' is highly variable. The variability of the 6.40keV line in intensity and spatial distribution strongly supports the scenario that the molecular clouds in the SgrB2 region are X-ray Reflection Nebulae irradiated by the Galactic Center (GC) black hole Sgr A*.

Affiliated with

Also associated with

No associations

Rating

A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Time-Variable X-Ray Echo: Indications of a Past Flare of the Galactic-Center Black Hole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-115599