2019A&A...632L...7J


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.13CEST06:22:59

2019A&A...632L...7J - Astronomy and Astrophysics, volume 632, L7-7 (2019/12-0)

Detection of a high-redshift molecular outflow in a primeval hyperstarburst galaxy.

JONES G.C., MAIOLINO R., CASELLI P. and CARNIANI S.

Abstract (from CDS):

We report the discovery of a high-redshift, massive molecular outflow in the starburst galaxy SPT 0346-52 (z=5.656) via the detected absorption of high-excitation water transitions (H2O 42,3-41,4 and H2O 33,0-32,1) with the Atacama Large Millimeter/submillimeter Array (ALMA). The host galaxy is one of the most powerful starburst galaxies at high redshift (star formation rate; SFR∼3600M/year), with an extremely compact (∼320pc) star formation region and a SFR surface density (ΣSFR∼5500M/year/kpc2) five times higher than "maximum" (i.e. Eddington-limited) starbursts, implying a highly transient phase. The estimated outflow rate is ∼500M/year, which is much lower than the SFR, implying that in this extreme starburst the outflow capabilities saturate and the outflow is no longer capable of regulating star formation, resulting in a runaway process in which star formation will use up all available gas in less than 30Myr. Finally, while previous kinematic investigations of this source revealed possible evidence for an ongoing major merger, the coincidence of the hyper-compact starburst and high-excitation water absorption indicates that this is a single starburst galaxy surrounded by a disc.

Abstract Copyright: © ESO 2019

Journal keyword(s): galaxies: high-redshift - galaxies: starburst - ISM: jets and outflows

VizieR on-line data: <Available at CDS (J/A+A/632/L7): list.dat fits/*>

Simbad objects: 11

goto Full paper

goto View the reference in ADS

Number of rows : 11

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 QSO B0332-403 BLL 03 34 13.6547438706 -40 08 25.401996186 18.54 18.35 17.87 17.5   ~ 278 1
2 SPT-S J034640-5204.9 G 03 46 41.190 -52 05 05.50           ~ 26 0
3 2MASS J04250426-5331581 BLL 04 25 04.2733431060 -53 31 58.260394579           ~ 32 0
4 QSO B0537-441 BLL 05 38 50.36155219 -44 05 08.9389165   15.77 16.48 16   ~ 805 2
5 QSO J0831+5245 QSO 08 31 41.7095363198 +52 45 17.620340544   19.2   14.5 13.9 ~ 501 1
6 [MFR2011b] ZC400528 G 09 59 47.5992 +01 44 18.949   23.71 23.34     ~ 12 0
7 2XMM J100211.2+013706 AGN 10 02 11.27 +01 37 06.6 24.48 24.146 24.188   22.613 ~ 54 0
8 NGC 4355 Sy2 12 26 54.628 -00 52 39.51   14.21 13.37     ~ 424 2
9 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2739 4
10 NAME Eyelash LeG 21 35 11.60 -01 02 52.0           ~ 195 0
11 SPT-S J231922-5557.9 G 23 19 22.200 -55 57 57.80           ~ 14 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2019A&A...632L...7J and select 'bookmark this link' or equivalent in the popup menu


2021.04.13-06:22:59

© Université de Strasbourg/CNRS

    • Contact