SIMBAD references

2013MNRAS.429L..55B - Mon. Not. R. Astron. Soc., 429, L55-L59 (2013/February-2)

Hyperluminous reddened broad-line quasars at z ∼ 2 from the VISTA Hemisphere Survey and WISE All-Sky Survey.

BANERJI M., McMAHON R.G., HEWETT P.C., GONZALEZ-SOLARES E. and KOPOSOV S.E.

Abstract (from CDS):

We present the first sample of spectroscopically confirmed heavily reddened broad-line quasars selected using the new near-infrared VISTA Hemisphere Survey and Wide-field Infrared Survey Explorer (WISE) all-sky survey. Observations of four candidates with (J - K) > 2.5 and K ≤ 16.5 over ∼ 180 deg2 lead to confirmation that two are highly dust-reddened broad-line Type 1 quasars at z ∼ 2. The typical dust extinctions are AV ∼ 2-2.5 mag. We measure black hole masses of ∼ 109 M☉ and extinction-corrected bolometric luminosities of ∼ 1047 erg s-1, making them some of the brightest Type 1 quasars currently known. Despite this, these quasars lie well below the detection limits of wide-field optical surveys like the Sloan Digital Sky Survey (SDSS) with iAB > 22. We also present WISE photometry at 3-22 µm, for our full sample of spectroscopically confirmed reddened quasars including those selected from the UKIDSS Large Area Survey. We demonstrate that the rest-frame infrared spectral energy distributions of these reddened quasars are similar to ultraviolet-luminous Type 1 quasars with significant hot dust emission and starburst quasar hosts like Mrk 231. The average 12-µm flux density of our reddened quasars is similar to that of the recently discovered hyperluminous infrared galaxy (HyLIRG) WISE 1814+3412 (z = 2.452) at similar redshifts, with two of our reddened quasars also having comparable 22-µm flux densities to this extreme HyLIRG. These optically faint, heavily reddened broad-line quasars are therefore among the most mid-infrared-luminous galaxies at z ∼ 2, now being discovered using WISE.

Abstract Copyright: © 2012 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2012)

Journal keyword(s): galaxies: active - quasars: emission lines - quasars: general

Nomenclature: Table 1: VHS JHHMM+DDMM N=5.

Status at CDS : Large table(s) of objects being ingested in VizieR.

Simbad objects: 9

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