2011A&A...533A..20P


Query : 2011A&A...533A..20P

2011A&A...533A..20P - Astronomy and Astrophysics, volume 533A, 20-20 (2011/9-1)

Disk, merger, or outflow? Molecular gas kinematics in two powerful obscured QSOs at z≥3.4.

POLLETTA M., NESVADBA N.P.H., NERI R., OMONT A., BERTA S. and BERGERON J.

Abstract (from CDS):

We report on the detection of bright CO(4-3) line emission in two powerful, obscured quasars discovered in the SWIRE survey, SW022513 and SW022550 at z≥3.4. We analyze the line strength and profile to determine the gas mass, dynamical mass, and the gas dynamics for both galaxies. In SW022513 we may have found the first evidence for a molecular, AGN-driven wind in the early Universe. The line profile in SW022513 is broad (FWHM=1000km/s) and blueshifted by -200km/s relative to systemic (where the systemic velocity is estimated from the narrow components of ionized gas lines, as is commonly done for AGN at low and high redshifts). SW022550 has a more regular, double-peaked profile, which is marginally spatially resolved in our data, consistent with either a merger or an extended disk. The molecular gas masses, 4x1010M, are large and account for <30% of the stellar mass, making these obscured QSOs as gas rich as other powerful CO emitting galaxies at high redshift, i.e., submillimeter galaxies. Our sources exhibit relatively lower star-formation efficiencies compared to other dusty, powerful starburst galaxies at high redshift. We speculate that this could be a consequence of the AGN perturbing the molecular gas.

Abstract Copyright:

Journal keyword(s): galaxies: high-redshift - galaxies: active - submillimeter: galaxies - submillimeter: ISM - quasars: general - galaxies: evolution

CDS comments: In ref list Danielson et al. 2010 MNRAS 1565 is a aprobable misprint for Danielson et al. 2011MNRAS.410.1687D

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 SWIRE J022513.90-043419.9 AGN 02 25 13.92 -04 34 20.6   25.11 23.82     ~ 11 0
2 SDSS J022550.67-042142.0 QSO 02 25 50.678 -04 21 42.07   23.71 22.26     ~ 7 0
3 NAME SMM J02399-0136 G 02 39 51.87 -01 35 58.8       21.20   ~ 179 2
4 NGC 1266 AGN 03 16 00.749 -02 25 38.53   14   12.46   ~ 265 1
5 4C 60.07 rG 05 12 54.80 +60 30 51.7           ~ 88 1
6 4C 41.17 rG 06 50 52.098 +41 30 30.53           ~ 319 1
7 NVSS J083053+191314 rG 08 30 53.44 +19 13 15.7           ~ 67 1
8 [VV2006] J100038.0+020822 QSO 10 00 38.0147122630 +02 08 22.396690298   20.698 20.617   20.45 ~ 52 0
9 [VV96] J102434.5+470911 Sy1 10 24 34.5 +47 09 11     20.5     ~ 475 0
10 3C 293.0 BLL 13 52 17.880 +31 26 46.49   16.10 15.10     ~ 437 3
11 [YSF2007] SST24 J171411.55+601109.3 G 17 14 11.450 +60 11 09.20       23.73   ~ 12 0
12 [YSF2007] SST24 J171535.78+602825.5 G 17 15 35.78 +60 28 25.5       23.50   ~ 11 0
13 AMS 12 QSO 17 18 22.6 +59 01 55           ~ 14 0
14 [YSF2007] SST24 J172109.22+601501.3 G 17 21 09.210 +60 15 01.66       23.14   ~ 11 0
15 [YSF2007] SST24 J172428.44+601533.2 G 17 24 28.44 +60 15 33.2       23.70   ~ 13 0
16 NAME Eyelash LeG 21 35 11.60 -01 02 52.0           ~ 201 0

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2021.09.26-07:58:29

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