Improving the identification of high-z Herschel sources with position priors and optical/NIR and FIR/mm photometric redshifts

Details Improving the identification of high-z Herschel sources with position priors and optical/NIR and FIR/mm photometric redshifts Improving the identification of high-z Herschel sources with position priors and optical/NIR and FIR/mm photometric redshifts

2010-05-20

arxiv.org/abs/1005.3823v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Accepted for publication in Astronomy and Astrophysics (Herschel special issue)

Scientific paper

We present preliminary results about the detection of high redshift (U)LIRGs in the Bullet cluster field by the PACS and SPIRE instruments within the Herschel Lensing Survey (HLS) Program. We describe in detail a photometric procedure designed to recover robust fluxes and deblend faint Herschel sources near the confusion noise. The method is based on the use of the positions of Spitzer/MIPS 24 um sources as priors. Our catalogs are able to reliably (5 sigma) recover galaxies with fluxes above 6 and 10 mJy in the PACS 100 and 160 um channels, respectively, and 12 to 18 mJy in the SPIRE bands. We also obtain spectral energy distributions covering the optical through the far-infrared/millimeter spectral ranges of all the Herschel detected sources, and analyze them to obtain independent estimations of the photometric redshift based on either stellar population or dust emission models. We exemplify the potential of the combined use of Spitzer position priors plus independent optical and IR photometric redshifts to robustly assign optical/NIR counterparts to the sources detected by Herschel and other (sub-)mm instruments.

Affiliated with

Also associated with

No associations

Rating

Improving the identification of high-z Herschel sources with position priors and optical/NIR and FIR/mm photometric redshifts 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 Improving the identification of high-z Herschel sources with position priors and optical/NIR and FIR/mm photometric redshifts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improving the identification of high-z Herschel sources with position priors and optical/NIR and FIR/mm photometric redshifts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-338084