2017A&A...608A..30F


Query : 2017A&A...608A..30F

2017A&A...608A..30F - Astronomy and Astrophysics, volume 608A, 30-30 (2017/12-1)

On the discovery of fast molecular gas in the UFO/BAL quasar APM 08279+5255 at z = 3.912.

FERUGLIO C., FERRARA A., BISCHETTI M., DOWNES D., NERI R., CECCARELLI C., CICONE C., FIORE F., GALLERANI S., MAIOLINO R., MENCI N., PICONCELLI E., VIETRI G., VIGNALI C. and ZAPPACOSTA L.

Abstract (from CDS):

We have performed a high sensitivity observation of the UFO/BAL quasar APM 08279+5255 at z=3.912 with NOEMA at 3.2mm, aimed at detecting fast moving molecular gas. We report the detection of blueshifted CO(4-3) with maximum velocity (v95%) of -1340km/s, with respect to the systemic peak emission, and a luminosity of L'=9.9x109µ–1.K.km/s/pc2, where µ is the lensing magnification factor. We discuss various scenarios for the nature of this emission and conclude that this is the first detection of fast molecular gas at redshift >3. We derived a mass flow rate of molecular gas in the range M=3-7.4x103M/yr and momentum boost POF/PAGN∼2-6, which is therefore consistent with a momentum conserving flow. For the largest POF the scaling is also consistent with an energy conserving flow with an efficiency of ∼10-20%. The present data can hardly discriminate between the two expansion modes. The mass loading factor of the molecular outflow η=MOF/SFR is ≫1. We also detected a molecular emission line at a frequency of 94.83GHz corresponding to a rest-frame frequency of 465.8GHz; we tentatively identified this frequency with the cation molecule N2H+(5-4), which would be the first detection of this species at high redshift. We discuss the alternative possibility that this emission is due to a CO emission line from the, so far undetected, lens galaxy. Further observations of additional transitions of the same species with NOEMA can discriminate between the two scenarios.

Abstract Copyright: © ESO, 2017

Journal keyword(s): galaxies: active - quasars: emission lines - submillimeter: ISM - X-rays: individuals: APM 08279+5255 - quasars: individual: APM 08279+5255 - quasars: general - quasars: general

VizieR on-line data: <Available at CDS (J/A+A/608/A30): apm-co43.dat>

Simbad objects: 20

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Number of rows : 20
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3177 2
2 M 77 GiP 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4405 2
3 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2193 1
4 4C 54.15 BLL 07 53 01.38457270 +53 52 59.6370830   18.5   16.77   ~ 141 1
5 QSO J0831+5245 QSO 08 31 41.7108197808 +52 45 17.616994560   19.2   14.5 13.9 ~ 522 1
6 QSO B0908+0603 QSO 09 11 27.6052 +05 50 54.281   18.44 18.16     ~ 222 2
7 [CRR2012] HLS J091828.6+514223 G 09 18 28.60 +51 42 23.3           ~ 35 0
8 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5658 6
9 IRAS 11119+3257 Sy1 11 14 38.8902542640 +32 41 33.483258276   19.22 17.96     ~ 132 1
10 SDSS J114816.64+525150.3 QSO 11 48 16.647 +52 51 50.31   25.73 25.04     ~ 430 0
11 NAME BzK 21000 rG 12 37 10.63 +62 22 34.7 23.93 25.0574     23.7554 ~ 50 0
12 Mrk 231 Sy1 12 56 14.2341182928 +56 52 25.238373852   14.68 13.84     ~ 1920 3
13 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4140 4
14 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2437 2
15 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2859 4
16 QSO B1725-142 QSO 17 28 19.7893499760 -14 15 55.854918288   14.69 14.03 13.7   ~ 280 0
17 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2135 1
18 QSO B1830-211 Bla 18 33 39.9399138048 -21 03 39.368838780     18.70 21   ~ 625 1
19 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 763 0
20 NAME Eyelash LeG 21 35 11.60 -01 02 52.0           ~ 211 0

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2022.12.06-18:56:45

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