WFC3 Imaging Of z=6 Quasars: Examining The Host Galaxies Of AGN In The Early Universe

Details WFC3 Imaging Of z=6 Quasars: Examining The Host Galaxies Of AGN In The Early Universe WFC3 Imaging Of z=6 Quasars: Examining The Host Galaxies Of AGN In The Early Universe

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924317m&link_type=abstract

American Astronomical Society, AAS Meeting #219, #243.17

Mathematics

Logic

Scientific paper

We present constraints on the properties of QSO host galaxies at z=6, using rest-frame ultraviolet imaging of the QSO J1148+5251. The data were collected by the Hubble Space Telescope Wide Field Camera 3 infrared channel in the F125W and F160W filters, and include contemporaneous observations of nearby stars to measure time-dependent components of the instrument point spread function (PSF). Using this observed PSF as a template, we construct model PSFs which are used to subtract the QSO point source from the images. We obtain a clean subtraction, but no detection of the host galaxy, to a 2σ limiting surface brightness of J > 24.45 AB mag arcsec-2 (H > 24.90 AB mag arcsec-2). Assuming a Sérsic profile with re = 0.4" and n = 4, this corresponds to a host galaxy with an integrated total magnitude of J > 23.05 AB mag (H > 23.50 AB mag). Further, we test the reliability of this method to recover the host galaxy flux by simulating host galaxies with varying parameters and conducting the same analysis. We discuss cosmological implications of the associated luminosity, size, and mass limits.
Support for HST GO program #12332 is provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.

Affiliated with

Also associated with

No associations

Rating

WFC3 Imaging Of z=6 Quasars: Examining The Host Galaxies Of AGN In The Early Universe 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 WFC3 Imaging Of z=6 Quasars: Examining The Host Galaxies Of AGN In The Early Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and WFC3 Imaging Of z=6 Quasars: Examining The Host Galaxies Of AGN In The Early Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1578767