J/A+A/635/A47 IRAS F08572+3915 CO(1-0) datacube (Herrera-Camus+, 2020)
AGN feedback in a galaxy merger: Multi-phase, galaxy-scale
outflows including a fast molecular gas blob ∼6 kpc away from IRAS F08572+3915.
Herrera-Camus R., Janssen A., Sturm E., Lutz D., Veilleux S., Davies R.,
Shimizu T., Gonzalez-Alfonso E., Rupke D.S.N., Tacconi L., Genzel R.,
Cicone C., Maiolino R., Contursi A., Gracia-Carpio J.
<Astron. Astrophys. 635, A47 (2020)>
=2020A&A...635A..47H 2020A&A...635A..47H (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Radio lines ; Radial velocities
Keywords: galaxies: active - galaxies: interaction - galaxies: evolution -
galaxies: starburst - ISM: jets and outflows
Abstract:
To understand the role that AGN feedback plays in galaxy evolution we
need in-depth studies of the multi-phase structure and energetics of
galaxy-wide outflows. In this work we present new, deep (∼50hr) NOEMA
CO(1-0) line observations of the molecular gas in the powerful outflow
driven by the AGN in the ultra-luminous infrared galaxy IRAS
F08572+3915. We spatially resolve the outflow, finding that its most
likely configuration is a wide-angle bicone aligned with the kinematic
major axis of the rotation disk. The molecular gas in the wind reaches
velocities up to approximately ±1200km/s and transports nearly
20% of the molecular gas mass in the system. We detect a second
outflow component located 6 kpc north-west from the galaxy moving away
at 900km/s, which could be the result of a previous episode of
AGN activity. The total mass and energetics of the outflow, which
includes contributions from the ionized, neutral, warm and cold
molecular gas phases is strongly dominated by the cold molecular gas.
In fact, the molecular mass outflow rate is higher than the star
formation rate, even if we only consider the gas in the outflow that
is fast enough to escape the galaxy, which accounts for about 40% of
the total mass of the outflow. This results in an outflow depletion
time for the molecular gas in the central ∼1.5kpc region of only
∼3Myr, a factor of ∼2 shorter than the depletion time by star
formation activity.
Description:
In total, there have been three IRAM NOEMA (formerly
Plateau de Bure Interferometer) observing programs that target the
CO(1-0) outflow in IRAS F08572+3915 (May-Oct 2011, Feb-March 2013
and March 2015-Feb 2016).
Objects:
--------------------------------------------------------
RA (2000) DE Designation(s)
--------------------------------------------------------
09 00 25.36 +39 03 54.2 IRAS F08572+3915 = LEDA 25295
--------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
list.dat 141 1 Information of the datacude
fits/* . 1 Datacube
--------------------------------------------------------------------------------
Byte-by-byte Description of file: list.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 23 I4 --- Nx Number of pixels along X-axis
25- 28 I4 --- Ny Number of pixels along Y-axis
30- 31 I2 --- Nz Number of slices
33- 37 I5 km/s bVRAD Lower value of VRAD interval
39- 42 I4 km/s BVRAD Upper value of VRAD interval
44- 45 I2 km/s dVRAD Velocity resolution
47- 52 I6 Kibyte size Size of FITS file
54- 92 A39 --- FileName Name of FITS file, in subdirectory fits
94-141 A48 --- Title Title of the FITS file
--------------------------------------------------------------------------------
Acknowledgements:
Rodrigo Herrera-Camu, rhc(at)astro-udec.cl
(End) Patricia Vannier [CDS] 17-Jan-2020