Chandra Bulge Latitude Survey (BLS): Near-infrared follow-up campaign

Details Chandra Bulge Latitude Survey (BLS): Near-infrared follow-up campaign Chandra Bulge Latitude Survey (BLS): Near-infrared follow-up campaign

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.4234v&link_type=abstract

American Astronomical Society, HEAD meeting #11, #42.34; Bulletin of the American Astronomical Society, Vol. 41, p.730

Astronomy and Astrophysics

Astronomy

Scientific paper

The impressive deep and panoramic Chandra images of the Galactic center region uncovered thousands of low-luminosity compact X-ray binaries. We are now extending these studies in the latitude direction, i.e. centered on the Galactic center and perpendicular to the plane The Bulge Latitude Survey is our multi-wavelength (X-ray/optical/near-infrared) effort to map out, for the first time, the latitude distribution of X-ray sources in the central 0.8 deg x 3 deg of our Galaxy down to a luminosity of about 9e31 ergs/s (0.3-8 keV; d=8kpc). Here we present initial results of the near-infrared (nIR) imaging campaign, which was carried out with the NOAO/CTIO ISPI camera between 2006 and 2009. The ISPI JHK mosaics provide candidate identifications to the X-ray sources, constraints on the source extinction, and are a rich resource for serendipitous discoveries. With a sensitivity of K 16.5, the nIR photometry is sensitive to foreground cataclysmic variables and quiescent low-mass X-ray binaries; X-ray binaries with massive and evolved companions can be identified up to Galactic center distances. We find no significant excess of nIR sources in the error circles of the obscured Chandra sources, implying that the bulge X-ray sources predominantly have nIR counterparts below the crowding limit, such as cataclysmic variables. Our nIR images show that the extinction in this region is highly variable, showing structures on spatial scales as small as a few arcsec.

Affiliated with

Also associated with

No associations

Rating

Chandra Bulge Latitude Survey (BLS): Near-infrared follow-up campaign 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 Chandra Bulge Latitude Survey (BLS): Near-infrared follow-up campaign, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chandra Bulge Latitude Survey (BLS): Near-infrared follow-up campaign will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1094946