J/ApJS/261/6 BASS. XXVI. DR2 stellar velocity dispersions (Koss+, 2022)
BASS.
XXVI. DR2 host galaxy stellar velocity dispersions.
Koss M.J., Trakhtenbrot B., Ricci C., Oh K., Bauer F.E., Stern D.,
Caglar T., Den Brok J.S., Mushotzky R., Ricci F., Mejia-restrepo J.E.,
Lamperti I., Treister E., Bar R.E., Harrison F., Powell M.C., Privon G.C.,
Riffel R., Rojas A.F., Schawinski K., Urry C.M.
<Astrophys. J. Suppl. Ser., 261, 6 (2022)>
=2022ApJS..261....6K 2022ApJS..261....6K (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei; Velocity dispersion; Spectra, optical;
Surveys; Galaxies, Seyfert
Keywords: Supermassive black holes; X-ray surveys; Sky surveys;
X-ray active galactic nuclei; AGN host galaxies
Abstract:
We present new central stellar velocity dispersions for 484 Sy 1.9 and
Sy 2 from the second data release of the Swift/BAT AGN Spectroscopic
Survey (BASS DR2). This constitutes the largest study of velocity
dispersion measurements in X-ray-selected obscured active galactic
nuclei (AGN) with 956 independent measurements of the CaII H and K
λ3969, 3934 and MgI λ5175 region (3880-5550Å) and the
calcium triplet region (8350-8730Å) from 642 spectra mainly from
VLT/X-Shooter or Palomar/DoubleSpec. Our sample spans velocity
dispersions of 40-360km/s, corresponding to 4-5 orders of magnitude in
black hole mass (MBH=105.5-9.6M☉), bolometric luminosity
(Lbol∼1042-46erg/s), and Eddington ratio (L/LEdd∼10-5 to 2).
For 281 AGN, our data and analysis provide the first published central
velocity dispersions, including six AGN with low-mass black holes
(MBH=105.5-6.5M☉), discovered thanks to high spectral
resolution observations (σinst∼25km/s). The survey represents
a significant advance with a nearly complete census of velocity
dispersions of hard X-ray-selected obscured AGN with measurements for
99% of nearby AGN (z<0.1) outside the Galactic plane (|b|>10°).
The BASS AGN have much higher velocity dispersions than the more
numerous optically selected narrow-line AGN (i.e., ∼150 versus
∼100km/s) but are not biased toward the highest velocity dispersions
of massive ellipticals (i.e., >250km/s). Despite sufficient spectral
resolution to resolve the velocity dispersions associated with the
bulges of small black holes (∼104-5M☉), we do not find a
significant population of super-Eddington AGN. Using estimates of the
black hole sphere of influence from velocity dispersion, direct
stellar and gas black hole mass measurements could be obtained with
existing facilities for more than ∼100 BASS AGN.
Description:
The AGN sample starts with the 858 AGN listed in the 70 month BAT
catalog that comprise the BASS DR2 (Koss+ 2022, cat. J/ApJS/261/2),
from which we select 393 Sy 1.9 and Sy 2 AGN. From this parent sample
of 393 obscured DR2 AGN, we were able to successfully measure
σ* in 359 AGN.
The velocity measurements were also carried out successfully on 125
additional obscured AGN from the deeper 105 month Swift/BAT all-sky
survey (e.g., Oh+ 2018, J/ApJS/235/4) collected as part of the ongoing
BASS efforts. As counterpart identification is still ongoing for the
105 month sample, we stress that this sample is neither complete nor
final and does not represent a flux- or volume-complete subset of the
deeper BAT data. So the final obscured AGN sample totals 484 from 359
DR2 and 125 bonus 105 month AGN.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 96 484 Best spectral measurements
table4.dat 49 484 Best velocity dispersion and MBH measurements
table7.dat 92 158 Secondary spectral measurements
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See also:
VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)
V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
J/MNRAS/276/1341 : Spectroscopy of E and S0 galaxies (Jorgensen+, 1995)
J/ApJS/132/37 : Spectroscopy of Southern warm IR galaxies (Kewley+, 2001)
J/ApJS/183/1 : Catalog of central stellar velocity dispersions (Ho+, 2009)
J/ApJ/727/20 : The Megamaser Cosmology Project (MCP). III. (Kuo+, 2011)
J/ApJ/739/57 : Ultra hard X-ray AGNs in the Swift/BAT survey (Koss+, 2011)
J/ApJ/746/L22 : Dual AGNs in the nearby Universe (Koss+, 2012)
J/ApJ/765/L26 : Swift/BAT ultra-hard X-ray data from GOALS LIRGs (Koss+, 2013)
J/ApJS/207/19 : Hard X-ray survey from Swift-BAT 6yrs (Baumgartner+, 2013)
J/ApJ/775/116 : z<0.06 active BH galaxies from SDSS-DR8 (Reines+, 2013)
J/MNRAS/446/2823 : CO and CaT derived sigma in spiral galaxies (Riffel+, 2015)
J/ApJS/218/10 : HET Massive Galaxy Survey (HETMGS) (van den Bosch+, 2015)
J/ApJ/815/L13 : Compton-thick AGNs from 70-month Swift/BAT (Ricci+, 2015)
J/ApJ/826/L32 : Black hole masses in megamaser disk galaxies (Greene+, 2016)
J/A+A/597/A48 : Stellar kinematics in CALIFA survey (Falcon-Barroso+, 2017)
J/ApJ/850/74 : Swift/BAT AGN Spectroscopic Survey. I. (Koss+, 2017)
J/ApJS/233/17 : Swift/BAT AGN spectroscopic survey. V. X-ray (Ricci+, 2017)
J/ApJS/235/4 : The 105-month Swift-BAT all-sky hard X-ray survey (Oh+, 2018)
J/ApJ/859/116 : BH masses and Eddington ratios of Type 2 QSOs (Kong+, 2018)
J/ApJS/239/27 : LEGA-C DR2: galaxies in the COSMOS field (Straatman+, 2018)
J/A+A/634/A133 : X-Shooter Spectral Library (XSL). DR2 (Gonneau+, 2020)
J/ApJS/252/29 : BAT AGN Spectroscopic Survey. XX. Molecular gas (Koss+, 2021)
J/ApJS/261/2 : BASS. XXII. Swift/BAT AGN Sp. Survey DR2 cat. (Koss+, 2022)
J/ApJS/261/4 : BASS. XXIV. DR2 spectral line measurements of AGNs (Oh+, 2022)
J/ApJS/261/5 : BASS. XXV. DR2 AGNs BH mass estimates (Mejia-Restrepo+, 2022)
http://swift.gsfc.nasa.gov/results/bs105mon/ : Swift BAT 105-month survey
http://www.bass-survey.com/ : The BAT AGN Spectroscopic Survey home page
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID [1/1631] BASS DR2 identification number (G1)
5 A1 --- m_ID [AB] Component on BASS DR2 identification
number (G1)
7- 33 A27 --- Gal Host galaxy identifier
35- 39 A5 --- Type AGN type (G2)
41- 53 A13 --- Tel/Inst Telescope/Instrument used
55- 57 F3.1 0.1nm Blue [0.6/8.1]? Blue instrument resolution (G3)
59- 61 F3.1 0.1nm Red [0.6/6.5]? Red instrument resolution (G3)
63 A1 --- Mask [nw] Emission line mask used (G4)
65- 70 I6 km/s cz [-47/183977]? Redshift from 3880-5550Å
region
72- 73 I2 km/s e_cz [11/43]? The 1σ uncertainty in cz
75- 77 I3 km/s sigmaS [43/364]? Stellar velocity dispersion from
3880-5550Å region
79- 80 I2 km/s e_sigmaS [1/29]? The 1σ uncertainty in sigmaS
82- 86 I5 km/s zCaT [445/27934]? Redshift from CaT region
88- 89 I2 km/s e_zCaT [11/36]? The 1σ uncertainty in zCaT
91- 93 I3 km/s sigmaCaT [41/363]? Velocity dispersion from CaT region
95- 96 I2 km/s e_sigmaCaT [1/27]? The 1σ uncertainty in sigmaCaT
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Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID [1/1631] BASS DR2 identification number (G1)
5 A1 --- m_ID [AB] Component on BASS DR2 identification
number (G1)
7- 15 A9 --- lam Spectral region ("3880-5550" or "CaT") (1)
17- 19 I3 km/s sigma [41/364] Best velocity dispersion
21- 22 I2 km/s e_sigma [1/29] The 1σ uncertainty in sigma*
24- 27 F4.2 [Msun] logMBH [5.47/9.63] Log inferred black hole mass (2)
29- 32 F4.2 [Msun] e_logMBH [0.01/0.44] The 1σ uncertainty in logMBH
34- 36 I3 km/s sigmaW [42/303]? Weighted stellar velocity
dispersion (3)
38- 39 I2 km/s e_sigmaW [1/18]? The 1σ uncertainty in sigma*W
41- 44 F4.2 [Msun] logMBHW [5.51/9.28]? Weighted log Black hole mass (3)
46- 49 F4.2 [Msun] e_logMBHW [0.01/0.22]? The 1σ uncertainty in
logMBHW
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Note (1): Having the lowest error in velocity dispersion measurement.
Note (2): Based on sigma* using Kormendy & Ho (2013ARA&A..51..511K 2013ARA&A..51..511K)
MBH-σ* relation.
Note (3): As the average of the 3880-5550Å and CaT dispersions, weighted by
their respective error bars.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID [13/1627] BASS DR2 identification number (G1)
5 A1 --- m_ID [AB] Component on BASS DR2 identification
number (G1)
7- 30 A24 --- Gal Host galaxy identifier
32- 36 A5 --- Type AGN type (G2)
38- 50 A13 --- Tel/Inst Telescope/Instrument used
52- 54 F3.1 0.1nm Blue [0.6/8.1]? Blue instrument resolution (G3)
56- 58 F3.1 0.1nm Red [0.6/6.5]? Red instrument resolution (G3)
60 A1 --- Mask [nw] Emission line mask used (G4)
62- 66 I5 km/s cz [523/40049]? Redshift from 3880-5550Å
region
68- 69 I2 km/s e_cz [2/22]? The 1σ uncertainty in cz
71- 73 I3 km/s sigma [59/282]? Velocity dispersion from
3880-5550Å region
75- 76 I2 km/s e_sigma [2/20]? The 1σ uncertainty in sigma
78- 82 I5 km/s zCaT [462/25070]? Redshift from CaT region
84- 85 I2 km/s e_zCaT [2/20]? The 1σ uncertainty in zCaT
87- 89 I3 km/s sigmaCaT [51/346]? Velocity dispersion from CaT region
91- 92 I2 km/s e_sigmaCaT [3/21]? The 1σ uncertainty in sigmaCaT
--------------------------------------------------------------------------------
Global notes:
Note (G1): Identification number from the BAT 70-month survey catalog
(Baumgartner+ 2013 Cat. J/ApJS/207/19, in Simbad) or
from the BAT 105-month cat. (Oh+, 2018, Cat. J/ApJS/235/4,
in Simbad) for numbers >1210. See also BASS DR2;
Paper XXII, Koss+, 2022, J/ApJS/261/2
Note (G2): Based on optical spectroscopy including Sy1.9 (narrow Hβ and
broad Hα) and Sy2 (with narrow Hβ and Hα) from
Koss et al. (submitted).
Note (G3): In units of Angstroms from the DR2 for the blue (3880-5550Å)
and/or red (CaT) region.
Note (G4): Mask as follows:
n = normal mask;
w = a more extensive line list to cover weak emission lines.
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History:
From electronic version of the journal
References:
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(End) Prepared by [AAS], Emmanuelle Perret [CDS] 05-Sep-2022