A dataset provided by the European Space Agency

Name SDP_kmeisenh_3
Title The Dusty Young Universe: Photometry and Spectroscopy of Quasars at z>2
URL

http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342186812&instrument_name=PACS&product_level=LEVEL0&compress=true
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http://archives.esac.esa.int/hsa/whsa-tap-server/data?retrieval_type=OBSERVATION&observation_id=1342189946&instrument_name=SPIRE&product_level=LEVEL0&compress=true

DOI 10.5270/esa-majxmsa
Author meisenheimer, k.
Description The detection of a significant fraction of the highest redshift quasars (z > 5) in the (sub-)mm wavelength range indicates that a substantial amount of dust has been synthesized already during the first billion year since the Big Bang. Recent 24 micron observations with Spitzer have shown that very hot dust is present close to the QSO core in most z >5 quasars. However, both the (sub-)mm and MIR observations can only catch tails of the dust emission spectrum, at lambda_rest > 200 m, and at lambda_rest < 5 m, respectively. Measuring the peak of the dust emission, expected to reach 10 .. 30 mJy around lambda_rest ~ 50 m (120m < lambda_obs < 700m), has been beyond the capabilities of FIR satellites or ground-based sub-mm telescopes. Thus, critical properties, such as FIR luminosity, dust temperatures and mass, remain unconstrained. To improve on this situation, we propose a Herschel Guaranteed Time Key Programme (GT KP) to collect far-infrared and sub-millimeter photometry of more than 100 high redshift quasars using the PACS and SPIRE instruments. We plan to determine the SEDs of three samples of QSOs: (i) all z > 5 quasars known to date, (ii) a dozen radio loud quasars and galaxies at the highest redshifts, and (iii) 29 Broad Absorption Line (BAL) quasars together with a comparison sample of 17 non-BAL QSOs at matching redshifts. In addition, we plan to obtain PACS spectroscopy of four very dust-rich and lensed high-redshift QSOs and galaxies for spectral line diagnostics, which will help to disentangle the contributions of AGN- and starburst-heated dust and thus complement the SED-based study. We will spend in total 165 hours of PACS GT in this key programme, 115 hours for the photometry with PACS and SPIRE, and 50 hours for the FIR spectroscopy.
Publication Active galactic nucleus torus models and the puzzling infrared spectrum of IRAS F10214+4724 . Efstathiou A. et al. . Monthly Notices of the Royal Astronomical Society, Volume 436, Issue 2, p.1873-1882 . 436 . 10.1093\/mnras\/stt1695 . 2013MNRAS.436.1873E ,
The Interstellar Medium in High-redshift Submillimeter Galaxies as Probed by Infrared Spectroscopy* . Wardlow Julie L. et al. . The Astrophysical Journal, Volume 837, Issue 1, article id. 12, 20 pp. (2017). . 837 . 10.3847\/1538-4357\/837\/1\/12 . 2017ApJ...837...12W ,
Herschel-PACS spectroscopy of IR-bright galaxies at high redshift . Sturm E. et al. . Astronomy and Astrophysics, Volume 518, id.L36, 4 pp. . 518 . 10.1051\/0004-6361\/201014560 . 2010A&A...518L..36S ,
Self-consistent two-phase AGN torus models⋆. SED library for observers . Siebenmorgen Ralf et al. . Astronomy & Astrophysics, Volume 583, id.A120, 18 pp. . 583 . 10.1051\/0004-6361\/201526034 . 2015A&A...583A.120S ,
Instrument PACS_PacsRangeSpec_point, PACS_PacsPhoto_largeScan, PACS_PacsPhoto_point, SPIRE_SpirePhoto_large
Temporal Coverage 2009-11-09T12:56:28Z/2010-01-31T05:30:50Z
Version SPG v14.2.0
Mission Description Herschel was launched on 14 May 2009! It is the fourth 'cornerstone' mission in the ESA science programme. With a 3.5 m Cassegrain telescope it is the largest space telescope ever launched. It is performing photometry and spectroscopy in approximately the 55-671 µm range, bridging the gap between earlier infrared space missions and groundbased facilities.
Creator Contact https://support.cosmos.esa.int/herschel/
Date Published 2010-03-12T05:10:05Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2010-03-12T05:10:05Z, SDP_kmeisenh_3, SPG v14.2.0. https://doi.org/10.5270/esa-majxmsa