J/ApJ/951/7 Ionized gaz outflows in AKARI local ULIRGs (Ayubinia+, 2023)
Investigation of stellar kinematics and ionized gas outflows in local (U)LIRGs.
Ayubinia A., Xue Y., Nguyen Le H.A., Zou F., Wang S., He Z., Kilerci E.
<Astrophys. J., 951, 7 (2023)>
=2023ApJ...951....7A 2023ApJ...951....7A
ADC_Keywords: Active gal. nuclei; Galaxies, IR; Optical; Redshifts; Surveys;
Velocity dispersion
Keywords: Active galactic nuclei
Abstract:
We explore the properties of stellar kinematics and ionized gas in a
sample of 1106 local (U)LIRGs from the AKARI telescope. We combine
data from Wide-field Infrared Survey Explorer and Sloan Digital Sky
Survey Data Release 13 to fit the spectral energy distribution (SED)
of each source to constrain the contribution of active galactic nuclei
(AGNs) to the total IR luminosity and estimate physical parameters
such as stellar mass and star formation rate (SFR). We split our
sample into AGNs and weak/non-AGNs. We find that our sample is
considerably above the main sequence. The highest SFRs and stellar
masses are associated with ULIRGs. We also fit the Hβ and
Hα regions to characterize the outflows. We find that the
incidence of ionized gas outflows in AGN (U)LIRGs (∼72%) is much
higher than that in weak/non- AGN ones (∼39%). The AGN ULIRGs have
extreme outflow velocities (up to ∼2300km/s) and high mass-outflow
rates (up to ∼60M☉/yr). Our results suggest that starbursts are
insufficient to produce such powerful outflows. We explore the
correlations of SFR and specific SFR (sSFR) with ionized gas outflows.
We find that AGN hosts with the highest SFRs exhibit a negative
correlation between outflow velocity and sSFR. Therefore, in AGNs
containing large amounts of gas, the negative feedback scenario might
be suggested.
Description:
Our (ultra)luminous infrared galaxy ((U)LIRG) sample is selected from
the IR galaxy catalog provided by
Kilerci Eser & Goto 2018, J/MNRAS/474/5363.
In this work, we first define a parent sample of 4705 local IR
galaxies from this catalog with available optical counterparts in SDSS
and extinction-corrected Petrosian r magnitude rpetro≤17.7.
Then, we select objects with LIR≥1011L☉ (i.e., (U)LIRGs)
from the parent sample.
To model the SEDs of our sources reliably, we further exclude 94
sources with no MIR data (i.e., no detection in the WISE [3.4]-[12]um
and/or in AKARI 9-18um). Consequently, our main sample consists of
1106 (U)LIRGs at z<0.3 with reliable spectroscopic redshifts and
photometric measurements, including 1066 LIRGs.
Among the 990 (U)LIRGs that have reliable SED-fitting results, there
are 435 sources (44%) that show signatures of ionized gas outflows.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 181 435 The stellar and ionized gas outflow properties of
our (ultra)luminous infrared galaxies ((U)LIRGs;
updated version from the author)
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See also:
VII/249 : 6dF-DR2 Galaxy Survey (Jones+, 2005)
VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)
II/298 : AKARI/FIS All-Sky Survey Point Source Catalogues (ISAS/JAXA, 2010)
II/328 : AllWISE Data Release (Cutri+ 2013)
V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
J/ApJS/143/315 : IRAS 1Jy sample of ultraluminous gal. II. (Veilleux+, 2002)
J/MNRAS/371/703 : MILES library of empirical spectra (Sanchez-Blazquez+, 2006)
J/ApJ/666/806 : SED of Spitzer quasars (QUEST) (Netzer+, 2007)
J/MNRAS/405/2505 : Nuclear activity in ULIRGs (Nardini+, 2010)
J/ApJ/720/368 : Color-magnitude relations of galaxies in CDFs (Xue+, 2010)
J/ApJS/199/26 : The 2MASS Redshift Survey (2MRS) (Huchra+, 2012)
J/ApJ/772/26 : AGN with WISE. II. The NDWFS Bootes field (Assef+, 2013)
J/ApJS/206/1 : Mid-IR properties of GOALS nearby LIRGs (Stierwalt+, 2013)
J/A+A/598/A1 : [U]LIRGs - on the trail of AGN's types (Malek+, 2017)
J/ApJ/850/140 : SDSS spectral analysis of IR-bright DOGs (Toba+, 2017)
J/A+A/597/A51 : Physical properties of Spitzer/IRS galaxies (Vika+, 2017)
J/MNRAS/480/3562 : AGN luminosity fraction in merging gal. (Dietrich+, 2018)
J/MNRAS/474/5363 : AKARI-SDSS-6dFGS-2MRS galaxy sample (Kilerci+, 2018)
J/ApJS/241/34 : SDSS Reverberation Mapping (SDSS-RM) project (Shen+, 2019)
J/ApJ/882/4 : SDSS-RM project: Ha, Hβ & MgII lines (Wang+, 2019)
J/MNRAS/492/1887 : Physical properties of the CDFS X-ray sources (Guo+, 2020)
J/A+A/654/A132 : X-shooter sp. of AGN & inactive galaxies (Burtscher+, 2021)
J/MNRAS/510/687 : Viewing angle in AGN SED models (Ramos Padilla+, 2022)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 I7 --- ID [5000012/5915894] AKARI identification
number
9- 17 F9.7 --- zspec [0.022/0.23] SDSS DR13 Redshift
19- 23 F5.2 [Lsun] logLIR [11/12.7] Log of IR luminosity (1)
25- 28 F4.2 [Lsun] e_logLIR [0.01/0.53] Lower uncertainty on logLIR
30- 33 F4.2 [Lsun] E_logLIR [0.01/0.52] Upper uncertainty on logLIR
35- 39 F5.2 % fAGN [0.1/70.3] AGN fraction
41- 45 F5.2 % e_fAGN [0.3/15] Uncertainty in fAGN
47- 53 F7.2 Msun/yr SFR [4.8/1020] Star formation rate
55- 60 F6.2 Msun/yr e_SFR [1/291] Uncertainty in SFR
62- 67 F6.2 10+10Msun Mstar [0.23/176] Stellar Mass
69- 73 F5.2 10+10Msun e_Mstar [0.24/36.4] Uncertainty in Mstar
75- 80 F6.2 km/s dV [65/424]?=-99 Stellar velocity dispersion
(2)
82- 87 F6.2 km/s e_dV [6/129]?=-99 Uncertainty in dV (2)
89- 93 F5.2 [Lsun] logLOIII [5.98/12.6] Extinction-corrected [OIII]
luminosity
95- 98 F4.2 [Lsun] e_logLOIII [0/0.2] Uncertainty in logLOIII
100-106 F7.2 km/s dV0 [78/1191] Sum in quadrature of the [OIII]
velocity dispersion and velocity shift
108-113 F6.2 km/s e_dV0 [2/417] Uncertainty in dV0
115-128 A14 --- AKARI AKARI name (HHMMSSs+DDMMSS; J2000)
(<AKARI-FIS-V2 JHHMMSSs+DDMMSS> in Simbad)
130-140 F11.7 deg RAIRdeg AKARI right ascension (J2000)
142-153 F12.8 deg DEIRdeg AKARI declination (J2000)
155-167 F13.9 deg RAdeg SDSS right ascension (J2000)
169-181 F13.9 deg DEdeg [-11.11/64.4] SDSS declination (J2000)
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Note (1): IR luminosity from Kilerci Eser E. & Goto T. 2018, J/MNRAS/474/5363
Note (2): When the the stellar velocity dispersion is a null value the
measurement estimates were unreliable; see Section 3.2.1.
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Acknowledgements:
Ashraf Ayubinia [a.ayubinia at gmail]
History:
From electronic version of the journal
AKARI names and coordinates sent by the author
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 20-Aug-2025