2016MNRAS.459..999A

Query : 2016MNRAS.459..999A

2016MNRAS.459..999A - Mon. Not. R. Astron. Soc., 459, 999-1017 (2016/June-2)

Heavily reddened z ∼ 2 Type 1 quasars - II. Hα star formation constraints from SINFONI IFU observations.

ALAGHBAND-ZADEH S., BANERJI M., HEWETT P.C. and McMAHON R.G.

Abstract (from CDS):

We use near-infrared integral field unit spectroscopy to search for H α emission associated with star formation in a sample of 28 heavily reddened (E(B - V) ≃ 0.5-1.9), hyperluminous () broad-line quasars at z ≃ 1.4-2.7. 16 of the 28 quasars show evidence for star formation with an average extinction-corrected star formation rate (SFR) of 320±70 M☉/yr. A stacked spectrum of the detections shows weak [N ii], consistent with star formation as the origin of the narrow H α emission. The star-forming regions are spatially unresolved in 11 of the 16 detections and constrained to lie within ∼6 kpc of the quasar emission. In the five resolved detections we find the star-forming regions are extended on scales of ∼8 kpc around the quasar emission. The prevalence of high SFRs is consistent with the identification of the heavily reddened quasar population as representing a transitional phase from apparent 'starburst galaxies' to optically luminous quasars. Upper limits are determined for 10 quasars in which star formation is undetected. In two of the quasars the SFR is constrained to be relatively modest,

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

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

Simbad objects: 30

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Number of rows : 30
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 ULAS J012312.52+152522.5 QSO 01 23 12.526 +15 25 22.52           ~ 5 0
2 AS2UDS J021738.68-050339.57 rG 02 17 38.675793 -05 03 39.56548   25.66119 21.4657 24.97221   ~ 19 0
3 ACS-GC 20000627 rG 10 02 11.27 +01 37 06.6 24.48 24.146 24.188   22.613 ~ 82 0
4 ULAS J123427.52+090754.1 QSO 12 34 27.52 +09 07 54.2           ~ 20 0
5 ULAS J145521.00+123008.6 QSO 14 55 21.004 +12 30 08.61           ~ 4 0
6 ULAS J153910.16+055749.7 QSO 15 39 10.16040 +05 57 49.7160           ~ 12 0
7 VHS J1556-0835 QSO 15 56 37.7 -08 35 43           ~ 3 0
8 VHS J2024-5623 QSO 20 24 25.8 -56 23 23           ~ 3 0
9 VHS J2028-4631 QSO 20 28 02.0 -46 31 57           ~ 2 0
10 VHS J2028-5740 QSO 20 28 50.2 -57 40 05           ~ 3 0
11 VHS J2048-4644 QSO 20 48 10.4 -46 44 19           ~ 2 0
12 VHS J2100-5820 QSO 21 00 33.7 -58 20 07           ~ 3 0
13 VHS J2101-5943 QSO 21 01 19.5 -59 43 45           ~ 4 0
14 VHS J2109-0026 QSO 21 09 27.1 -00 26 59           ~ 3 0
15 VHS J2115-5913 QSO 21 15 31.6 -59 13 08           ~ 3 0
16 VHS J2130-4930 QSO 21 30 59.8 -49 30 12           ~ 2 0
17 VHS J2141-4816 QSO 21 41 24.7 -48 16 59           ~ 2 0
18 VHS J2143-0643 QSO 21 43 34.2467 -06 43 14.363           ~ 4 0
19 VHS J2144-0523 QSO 21 44 57.5 -05 23 17           ~ 3 0
20 ULAS J220024.87+005604.7 QSO 22 00 24.874 +00 56 04.77           ~ 7 0
21 VHS J2212-4624 QSO 22 12 19.1 -46 24 36           ~ 2 0
22 VHS J2220-5618 QSO 22 20 33.6 -56 18 39           ~ 3 0
23 ULAS J222409.41-001524.1 QSO 22 24 09.414 -00 15 24.11           ~ 6 0
24 VHS J2235-5750 QSO 22 35 43.9 -57 50 14           ~ 3 0
25 VHS J2256-4800 QSO 22 56 34.7 -48 00 32           ~ 3 0
26 VHS J2257-4700 QSO 22 57 02.1 -47 00 57           ~ 3 0
27 VHS J2306-5447 QSO 23 06 00.3 -54 47 17           ~ 3 0
28 ULAS J231556.23+014350.3 QSO 23 15 56.236 +01 43 50.38           ~ 18 0
29 VHS J2332-5240 QSO 23 32 09.3 -52 40 41           ~ 3 0
30 VHS J2355-0011 QSO 23 55 45.5 -00 11 21           ~ 4 0

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