2018MNRAS.475.3682W

Query : 2018MNRAS.475.3682W

2018MNRAS.475.3682W - Mon. Not. R. Astron. Soc., 475, 3682-3699 (2018/April-2)

UV-luminous, star-forming hosts of z ∼ 2 reddened quasars in the Dark Energy Survey.

WETHERS C.F., BANERJI M., HEWETT P.C., LEMON C.A., McMAHON R.G., REED S.L., SHEN Y., ABDALLA F.B., BENOIT-LEVY A., BROOKS D., BUCKLEY-GEER E., CAPOZZI D., CARNERO ROSELL A., CARRASCO KIND M., CARRETERO J., CUNHA C.E., D'ANDREA C.B., DA COSTA L.N., DEPOY D.L., DESAI S., DOEL P., FLAUGHER B., FOSALBA P., FRIEMAN J., GARCIA-BELLIDO J., GERDES D.W., GRUEN D., GRUENDL R.A., GSCHWEND J., GUTIERREZ G., HONSCHEID K., JAMES D.J., JELTEMA T., KUEHN K., KUHLMANN S., KUROPATKIN N., LIMA M., MAIA M.A.G., MARSHALL J.L., MARTINI P., MENANTEAU F., MIQUEL R., NICHOL R.C., NORD B., PLAZAS A.A., ROMER A.K., SANCHEZ E., SCARPINE V., SCHINDLER R., SCHUBNELL M., SEVILLA-NOARBE I., SMITH M., SMITH R.C., SOARES-SANTOS M., SOBREIRA F., SUCHYTA E., TARLE G. and WALKER A.R.

Abstract (from CDS):

We present the first rest-frame UV population study of 17 heavily reddened, high-luminosity [E(B - V)QSO >= 0.5; Lbol > 1046 erg s–1] broad-line quasars at 1.5 < z < 2.7. We combine the first year of deep, optical, ground-based observations from the Dark Energy Survey (DES) with the near-infrared VISTA Hemisphere Survey and UKIDSS Large Area Survey data, from which the reddened quasars were initially identified. We demonstrate that the significant dust reddening towards the quasar in our sample allows host galaxy emission to be detected at the rest-frame UV wavelengths probed by the DES photometry. By exploiting this reddening effect, we disentangle the quasar emission from that of the host galaxy via spectral energy distribution fitting. We find evidence for a relatively unobscured, star-forming host galaxy in at least 10 quasars, with a further three quasars exhibiting emission consistent with either star formation or scattered light. From the rest-frame UV emission, we derive instantaneous, dust-corrected star formation rates (SFRs) in the range 25 < SFRUV < 365 M☉ yr–1, with an average SFRUV = 130 ± 95 M☉ yr–1. We find a broad correlation between SFRUV and the bolometric quasar luminosity. Overall, our results show evidence for coeval star formation and black hole accretion occurring in luminous, reddened quasars at the peak epoch of galaxy formation.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: evolution - galaxies: high-redshift - quasars: general - galaxies: star formation - ultraviolet: galaxies

Simbad objects: 19

goto Full paper

goto View the references in ADS

Number of rows : 19
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SDSS J001600.60-003859.2 QSO 00 16 00.603 -00 38 59.29           ~ 11 0
2 WISE J020446.13-050640.8 G 02 04 46.13 -05 06 40.8           ~ 8 0
3 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
4 ACS-GC 20000627 rG 10 02 11.27 +01 37 06.6 24.48 24.146 24.188   22.613 ~ 82 0
5 VHS J2024-5623 QSO 20 24 25.8 -56 23 23           ~ 3 0
6 VHS J2028-5740 QSO 20 28 50.2 -57 40 05           ~ 3 0
7 VHS J2100-5820 QSO 21 00 33.7 -58 20 07           ~ 3 0
8 VHS J2115-5913 QSO 21 15 31.6 -59 13 08           ~ 3 0
9 ULAS J220024.87+005604.7 QSO 22 00 24.874 +00 56 04.77           ~ 7 0
10 VHS J2220-5618 QSO 22 20 33.6 -56 18 39           ~ 3 0
11 ULAS J222409.41-001524.1 QSO 22 24 09.414 -00 15 24.11           ~ 6 0
12 VHS J2227-5203 QSO 22 27 47.8 -52 03 30           ~ 2 0
13 VHS J2235-5750 QSO 22 35 43.9 -57 50 14           ~ 3 0
14 VHS J2256-4800 QSO 22 56 34.7 -48 00 32           ~ 3 0
15 VHS J2257-4700 QSO 22 57 02.1 -47 00 57           ~ 3 0
16 VHS J2306-5447 QSO 23 06 00.3 -54 47 17           ~ 3 0
17 ULAS J231556.23+014350.3 QSO 23 15 56.236 +01 43 50.38           ~ 18 0
18 VHS J2332-5240 QSO 23 32 09.3 -52 40 41           ~ 3 0
19 VHS J2355-0011 QSO 23 55 45.5 -00 11 21           ~ 4 0

To bookmark this query, right click on this link: simbad:objects in 2018MNRAS.475.3682W and select 'bookmark this link' or equivalent in the popup menu