J/ApJS/261/2 BASS. XXII. The Swift/BAT AGN Sp. Survey DR2 cat. (Koss+, 2022)
BASS. XXII. The BASS DR2 AGN catalog and data.
Koss M.J., Ricci C., Trakhtenbrot B., Oh K., den Brok J.S.,
Mejia-Restrepo J.E., Stern D., Privon G.C., Treister E., Powell M.C.,
Mushotzky R., Bauer F.E., Ananna T.T., Balokovic M., Bar R.E., Becker G.,
Bessiere P., Burtscher L., Caglar T., Congiu E., Evans P., Harrison F.,
Heida M., Ichikawa K., Kamraj N., Lamperti I., Pacucci F., Ricci F.,
Riffel R., Rojas A.F., Schawinski K., Temple M.J., Urry C.M., Veilleux S.,
Williams J.
<Astrophys. J. Suppl. Ser., 261, 2 (2022)>
=2022ApJS..261....2K 2022ApJS..261....2K
ADC_Keywords: Active gal. nuclei; Galaxies, Seyfert; Spectra, optical;
X-ray sources; Infrared; Cross identifications; Surveys
Keywords: X-ray active galactic nuclei ; Active galactic nuclei ;
Seyfert galaxies ; X-ray quasars ; X-ray surveys ; Surveys ;
Sky surveys ; Galaxy spectroscopy
Abstract:
We present the active galactic nucleus (AGN) catalog and optical
spectroscopy for the second data release of the Swift BAT AGN
Spectroscopic Survey (BASS DR2). With this DR2 release we provide 1449
optical spectra, of which 1182 are released for the first time, for
the 858 hard-X-ray-selected AGNs in the Swift BAT 70-month sample. The
majority of the spectra (801/1449, 55%) are newly obtained from Very
Large Telescope (VLT)/X-shooter or Palomar/Doublespec. Many of the
spectra have both higher resolution (R>2500, N∼450) and/or very wide
wavelength coverage (3200-10000Å, N∼600) that are important for a
variety of AGN and host galaxy studies. We include newly revised AGN
counterparts for the full sample and review important issues for
population studies, with 47 AGN redshifts determined for the first
time and 790 black hole mass and accretion rate estimates. This
release is spectroscopically complete for all AGNs (100%, 858/858),
with 99.8% having redshift measurements (857/858) and 96% completion
in black hole mass estimates of unbeamed AGNs (722/752). This AGN
sample represents a unique census of the brightest hard-X-ray-selected
AGNs in the sky, spanning many orders of magnitude in Eddington ratio
(L/LEdd=10-5-100), black hole mass (MBH=105-1010M☉),
and AGN bolometric luminosity (Lbol=1040-1047erg/s).
Description:
The initial 70-month catalog (Baumgartner+ 2013, J/ApJS/207/19) was
composed of 1210 sources, including 822 classified as AGNs or
associated with a galaxy and likely an AGN, 287 Galactic sources
(e.g., high/low-mass X-ray binary, cataclysmic variable, pulsar), 19
clusters, and 82 unknown sources. The counterpart positions and AGN
classifications were updated based on WISE and X-ray data for 838 AGNs
in the BASS DR1 (Ricci+ 2017, J/ApJS/233/17), which included three
dual AGN systems. Here we discuss the BASS DR2 AGN counterparts after
an extensive examination of the remaining unknown 70-month catalog
sources.
The largest sample of targeted sources, 402, was observed with the
Palomar Double Spectrograph (DBSP) on the 200-inch Hale telescope.
These AGNs were observed as part of a dedicated program on BAT AGNs
(P.I. M. Urry or M. Powell) or as part of the NuSTAR program
(P.I. F. Harrison and D. Stern), where they served as backup targets
to faint NuSTAR serendipitous sources. The observations were performed
between 2012 October and 2020 November. See Section 3.2.1.
A total of 211 were observed with the VLT X-shooter, a multiwavelength
(3000-25000Å) echelle spectrograph with medium spectral resolution
R=4000-18000. There were also 69 observations with VLT/FORS2 done in a
single observing semester in 2017 (099.A-0403A). See Section 3.2.2.
We observed 153 sources at the Southern Astrophysical Research (SOAR)
telescope using the Goodman instrument as part of six programs between
2017 and 2020 (P.I. C. Ricci). See Section 3.2.3.
Over 11 nights in 2016, 119 AGNs were observed with the du Pont
telescope with the Bollens & Chivens spectrograph (P.I. C. Ricci).
Some AGNs were also observed with the Keck telescopes associated with
observations of NuSTAR-observed AGNs and mergers (e.g.,
Koss+ 2016ApJ...824L...4K 2016ApJ...824L...4K). A total of 21 observations were carried
out using the Low Resolution Imaging Spectrometer (LRIS) on the Keck I
Telescope.
We performed 12 observations with the Magellan Echellete (MagE)
spectrograph on the Magellan Clay telescope.
We also included additional spectra from archival sources. We used
spectra from the SDSS (APO), with 151 sources from DR16 (V/154).
See Section 3.2.7.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table8.dat 302 1449 Master observing table
table9.dat 133 858 General hard-X-ray selected AGN properties
table11.dat 106 47 Newly identified redshifts
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See also:
IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
VIII/37 : The Third Bologna Survey (B3) (Ficarra+ 1985)
VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)
II/328 : AllWISE Data Release (Cutri+ 2013)
V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
J/AJ/127/156 : Soft X-Ray-Selected AGNs complete sample (Grupe+, 2004)
J/ApJS/155/271 : CDF-South: Optical spectroscopy (Szokoly+, 2004)
J/ApJS/165/19 : SEXSI catalog. III (Eckart+, 2006)
J/AJ/133/313 : AGN from RASS and SDSS DR5 (Anderson+, 2007)
J/A+A/495/691 : Multifrequency cat. of blazars, Roma-BZCAT (Massaro+, 2009)
J/ApJ/701/811 : Chandra observations of INTEGRAL sources (Tomsick+, 2009)
J/ApJ/693/1713 : Spectroscopy of X-ray sources in ECDF-S (Treister+, 2009)
J/MNRAS/401/1151 : RASS-6dFGS catalogue (Mahony+, 2010)
J/ApJS/191/124 : Opt. spectroscopy of ECDF-S X-ray sources (Silverman+, 2010)
J/A+A/534/A110 : Type-2 AGN from XMM-COSMOS bolometric output (Lusso+, 2011)
J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)
J/ApJ/746/L22 : Dual AGNs in the nearby Universe (Koss+, 2012)
J/ApJS/207/19 : Hard X-ray survey from BAT 2004-2010 (Baumgartner+, 2013)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/A+A/587/A61 : BlackCAT, stellar-mass BH in trans. (Corral-Santana+, 2016)
J/MNRAS/457/110 : Northern XMM-XXL field AGN catalog (Menzel+, 2016)
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/MNRAS/470/4838 : Redshift cat. of HE 0435-1223 field-of-view (Sluse+, 2017)
J/AJ/155/247 : RVs of 6 X-ray cataclysmic binaries (Halpern+, 2018)
J/ApJS/235/4 : 105-month Swift-BAT all-sky hard X-ray survey (Oh+, 2018)
J/A+A/627/A148 : TANAMI radio galaxies I (Angioni+, 2019)
J/ApJ/883/163 : OI abs. search in Keck & VLT sp. of 199 QSOs (Becker+, 2019)
J/ApJS/244/24 : A z=0 Multiwave. Galaxy Synthesis (z0MGS). I. (Leroy+, 2019)
J/ApJ/881/154 : BAT AGN spectroscopic survey. XVI. Blazars (Paliya+, 2019)
J/A+A/636/A97 : SDSS-IV/SPIDERS X-ray PS sp. Cat. (Comparat+, 2020)
J/A+A/654/A132 : X-shooter sp. of AGN & inactive galaxies (Burtscher+, 2021)
J/ApJS/252/29 : BAT AGN Sp. Survey. XX. Molecular gas (Koss+, 2021)
http://swift.gsfc.nasa.gov/results/bs70mon/ : Swift-BAT 70-months
http://www.bass-survey.com/ : The BAT AGN Spectroscopic Survey home page
Byte-by-byte Description of file: table8.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID [1/1210] Catalog ID in the BASS DR2
survey (G1)
5 A1 --- m_ID [AB] Component on sequential number (G1)
7- 16 A10 --- Tel Name of observatory
18- 22 F5.2 m Diam [1.5/10] Telescope diameter
24- 42 A19 --- Inst Instrument
44- 90 A47 --- File1 Associated FITS spectral file (1)
92- 142 A51 --- File2 Associated FITS spectral file, red
spectrum (1)
144- 163 A20 --- Flags Associated calibration or spectral
extraction flags (2)
165- 174 A10 --- Date UT date of observation, YYYY-MM-DD
176- 196 A21 --- Range Spectral range (3)
198- 210 A13 --- Grating1 Associated grating or grism (1)
212- 220 A9 --- Grating2 Associated grating or grism, red spectrum
(1)
222- 225 I4 --- R1 [200/8333]? Instrumental resolution (1)
227- 231 I5 --- R2 [817/14167]? Instrumental resolution, red
spectrum (1)
233- 236 F4.1 0.1nm FWHM1 [0.6/25]? Instrumental FWHM (1)
238- 241 F4.1 0.1nm FWHM2 [0.6/10.4]? Instrumental FWHM, red
spectrum (1)
243- 245 F3.1 arcsec SlitW1 [0.5/3]? Slit width (1)
247- 249 F3.1 arcsec SlitW2 [0.7/1.8]? Slit width, red spectrum (1)
251- 255 F5.1 arcsec SlitL1 [0.8/109.4]? Slit length (1)(4)
257- 260 F4.1 arcsec SlitL2 [0.9/14.2]? Slit length, red
spectrum (1)(4)
262- 264 I3 deg PA [0/359]? Position angle,
measured East of North
266- 270 F5.2 arcsec Seeing [-1/56.07]? Recorded seeing or average
seeing of observations
272- 275 F4.2 --- AirM [1/2.76]? Average airmass during
observation
277- 281 I5 s Exptime [60/10800]? Total exposure from all
combined observations
283- 286 F4.2 0.1nm/pix crpix1 [0.2/8.44]? Pixel dispersion, Angstroms
per pixel (1)(5)
288- 291 F4.2 0.1nm/pix crpix2 [0.2/2.57]? Pixel dispersion, Angstroms
per pixel (1)(5)
293- 297 F5.1 km/s BC [-29.8/30.1] Barycenter correction (6)
299- 302 F4.2 mag EBV [0.01/3.42] Atmospheric extinction
--------------------------------------------------------------------------------
Note (1): For telescopes with both a blue and red side, two values are given
with the blue side listed first (e.g. File1, FWHM1, etc) and the red
side listed second.
Note (2): Any associated flags with calibration or spectral extraction
as follows:
Star = foreground stellar contamination, that a very nearby star (<2")
contributed to the emission despite a very small extraction region;
Red = only the red side is extracted because the Galactic extinction was
so high (e.g. AV>3) that no source is detected in the blue;
Calibration = the object was observed under poor conditions or the
standard star was observed on a different night, so spectral
calibration may be more uncertain than usual;
Tellurics = the spectrum suffers from worse than usual telluric
correction or that the molecfit (Smette+ 2015A&A...576A..77S 2015A&A...576A..77S)
correction was unsuccessful;
Shortblue = The setup has a shorter than normal blue wavelength coverage
due to a reduction issue.
Note (3): For telescopes with both a blue and red side, two spectral ranges
are merged in this column with the blue side first and the red side
listed following a colon (:).
Note (4): If multiple exposures were combined with optimal extraction (e.g.
Palomar/DBSP), the average value is listed.
Note (5): Only included for spectra with linear dispersions.
Note (6): Barycenter correction needed for the Earth's motion based on
observation time and observatory location. The computed correction
should be added to any observed velocity to determine the final
barycentric radial velocity. As this correction is small (e.g. <30km/s),
it has not been applied to any catalog measurements in the DR2.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table9.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID [1/1210] Catalog ID in the BASS DR2 survey (G1)
5 A1 --- m_ID [AB] Component on sequential number (G1)
7- 33 A27 --- CName Counterpart source name
35- 39 A5 --- n_ID [bdfnw, ] Flag(s) on ID; column added by CDS (1)
41- 51 F11.7 deg RAdeg Right Ascension (J2000) (2)
53- 65 F13.9 deg DEdeg [-86.64/85.92] Declination (J2000) (2)
67- 75 A9 --- Type AGN type based on optical spectroscopy (3)
77- 87 F11.8 --- z [-0.000113/3.66]? Best z (4)
89- 98 A10 --- ztype Redshift type (4)
100-106 F7.1 Mpc Dist [3.5/32216.1]? Distance
108-112 F5.2 [Msun] logMBH [5.4/10.7]? log, Best black hole mass (5)
114-121 A8 --- Method Method for black hole mass (5)
123-127 F5.2 [10-7W] logLbol [41.28/49.5]? log of AGN bolometric luminosity
in erg/s units
129-133 F5.2 [-] logEdd [-4.8/2.1]? log, Eddington ratio
--------------------------------------------------------------------------------
Note (1): Note as follows:
n = new counterpart in BASS DR2 (see Table 1, section 2.1)
d = dual AGN in DR2 (see Table 4, section 2.3)
w = weakly associated counterparts in DR2 (see Table 5, section 2.4)
f = faint soft X-ray counterparts in DR2 (see Table 6, section 2.5)
b = Beamed AGN changes in DR2 (see Table 16, Appendix 1.1)
Note (2): Equatorial position of optical/IR counterpart to the BAT AGN
based on WISE positions.
Note (3): AGN type as follows:
Sy1 = AGN with broad Hβ (360 occurrences),
Sy1.9 = AGN with narrow Hβ and broad Hα (101 occurrences),
Sy2 = AGN with narrow Hβ and Hα (292 occurrences).
For beamed AGN, the types include the following:
BZQ = those with the presence of broad lines (75 occurrences),
BZG = only host http://swift.gsfc.nasa.gov/results/bs70mon/
galaxy features lacking broad lines (8 occurrences),
BZB = traditional continuum dominated blazars with no emission lines or
host galaxy features (22 occurrences).
Note (4): Best DR2 redshift measurement and the line or method used for the
measurement. The majority of fits are done with [OIII]λ5007
(88%, 755/858). Measurements are from a broad line fitting code
(Mejia-Restrepo et al., accepted) referred to as OIII broad, MgII
broad, and CIV broad, respectively, when available for all Sy1 and BZQ
sources with broad line Hβ. For narrow line sources, the redshift
is based on emission-line fitting of [OIII]λ5007, when
possible. For some high Galactic extinction sources, single emission
line fits to other lines are used (in the table as Ha for Hα,
SIII for [SII]λ9531, and HeI for HeIIλ10830). For some
high redshift sources z>1 without high quality broad line fitting we
report the estimates from single emission line fits of CIVλ1549
and MgIIλ2798 (referred to as CIV and MgII). Host galaxy
templates (referred to as Gal Temp) are used for some BZB with no
emission lines. For the remaining sources, DR1 fits or those from
Simbad are used for redshift estimates.
Note (5): The best black hole mass measurement and the method used for the
measurement. We do not report errors from either broad line fitting or
velocity dispersions as the they are less than 0.1dex and the errors
are dominated by the intrinsic spread of virial and σ* based BH mass
estimates of order 0.5dex.
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Byte-by-byte Description of file: table11.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- ID [25/1208] BASS DR2 index (G1)
6- 24 A19 --- SWIFT Swift name (SWIFT JHHMM.m+DDMM)
26- 53 A28 --- CName Counterpart name in NED or SIMBAD based
on the WISE position
55- 59 A5 --- Type AGN DR2 type
61- 73 A13 --- Tel Telescope/Instrument
75- 82 F8.6 --- z [0.018/3.66] Best DR2 redshift
84- 101 A18 --- Line Line
103- 106 F4.2 mag Av [0/9.7] Visual extinction, AV (1)
--------------------------------------------------------------------------------
Note (1): Visual extinction due to Milky Way foreground dust, using maps of
Schlegel et al. (1998ApJ...500..525S 1998ApJ...500..525S) and the extinction law derived
by Cardelli et al. (1989ApJ...345..245C 1989ApJ...345..245C).
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Global notes:
Note (G1): BASS DR2 numbers from the BAT 70-month survey catalog identifiers
(Baumgartner+, 2013, J/ApJS/207/19 - in Simbad;
see http://swift.gsfc.nasa.gov/results/bs70mon/).
Note that, the components ("B") are not part of
Baumgartner+, 2013, J/ApJS/207/19 ("A" components have been added
by CDS to match the other BASS papers).
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Koss et al. Paper I. 2017ApJ...850...74K 2017ApJ...850...74K Cat. J/ApJ/850/74
Berney et al. Paper II. 2015MNRAS.454.3622B 2015MNRAS.454.3622B
Oh et al. Paper III. 2017MNRAS.464.1466O 2017MNRAS.464.1466O
Lamperti et al. Paper IV. 2017MNRAS.467..540L 2017MNRAS.467..540L Cat. J/MNRAS/467/540
Ricci et al. Paper V. 2017ApJS..233...17R 2017ApJS..233...17R Cat. J/ApJS/233/17
Trakhtenbrot et al. Paper VI. 2017MNRAS.470..800T 2017MNRAS.470..800T
Ricci et al. Paper VII. 2017Natur.549..488R 2017Natur.549..488R
Shimizu et al. Paper VIII. 2018ApJ...856..154S 2018ApJ...856..154S
Powell et al. Paper IX. 2018ApJ...858..110P 2018ApJ...858..110P
Oh et al. Paper X. 2018ApJS..235....4O 2018ApJS..235....4O Cat. J/ApJS/235/4
Ichikawa et al. Paper XI. 2019ApJ...870...31I 2019ApJ...870...31I Cat. J/ApJ/870/31
Ricci et al. Paper XII. 2018MNRAS.480.1819R 2018MNRAS.480.1819R
Bar et al. Paper XIII. 2019MNRAS.489.3073B 2019MNRAS.489.3073B
Koss et al. Paper XIV. 2018Natur.563..214K 2018Natur.563..214K
Smith et al. Paper XV. 2020MNRAS.492.4216S 2020MNRAS.492.4216S
Paliya et al. Paper XVI. 2019ApJ...881..154P 2019ApJ...881..154P Cat. J/ApJ/881/154
Baek et al. Paper XVII. 2019MNRAS.488.4317B 2019MNRAS.488.4317B
Liu et al. Paper XVIII. 2020ApJ...896..122L 2020ApJ...896..122L
Rojas et al. Paper XIX. 2020MNRAS.491.5867R 2020MNRAS.491.5867R
Koss et al. Paper XX. 2021ApJS..252...29K 2021ApJS..252...29K Cat. J/ApJS/252/29
Koss et al. Paper XXI. 2022ApJS..261....1K 2022ApJS..261....1K
Koss et al. Paper XXII. 2022ApJS..261....2K 2022ApJS..261....2K This catalog
Pfeifle et al. Paper XXIII. 2022ApJS..261....3P 2022ApJS..261....3P
Oh et al. Paper XXIV. 2022ApJS..261....4O 2022ApJS..261....4O Cat. J/ApJS/261/4
Mejia-Restrepo et al. Paper XXV. 2022ApJS..261....5M 2022ApJS..261....5M Cat. J/ApJS/261/5
Koss et al. Paper XXVI. 2022ApJS..261....6K 2022ApJS..261....6K Cat. J/ApJS/261/6
Gupta et al. Paper XXVII. 2021MNRAS.504..428G 2021MNRAS.504..428G
den Brok et al. Paper XXVIII. 2022ApJS..261....7D 2022ApJS..261....7D Cat. J/ApJS/261/7
Ricci et al. Paper XXIX. 2022ApJS..261....8R 2022ApJS..261....8R Cat. J/ApJS/261/8
Ananna et al. Paper XXX. 2022ApJS..261....9A 2022ApJS..261....9A
Kakkad et al. Paper XXXI. 2022MNRAS.511.2105K 2022MNRAS.511.2105K
Kawamuro et al. Paper XXXII. 2022ApJ...938...87K 2022ApJ...938...87K
Marcotulli et al. Paper XXXIII. 2022ApJ...940...77M 2022ApJ...940...77M Cat. J/ApJ/940/77
Kawamuro et al. Paper XXXIV. 2023ApJS..269...24K 2023ApJS..269...24K Cat. J/ApJS/269/24
Caglar et al. Paper XXXV. 2023ApJ...956...60C 2023ApJ...956...60C
Powell et al. Paper XXXVI. 2022ApJ...938...77P 2022ApJ...938...77P
Ricci et al. Paper XXXVII. 2022ApJ...938...67R 2022ApJ...938...67R
Ananna et al. Paper XXXVIII. 2022ApJ...939L..13A 2022ApJ...939L..13A
Temple et al. Paper XXXIX. 2023MNRAS.518.2938T 2023MNRAS.518.2938T
Tortosa et al. Paper XL. 2023MNRAS.526.1687T 2023MNRAS.526.1687T
Ricci et al. Paper XLII. 2023ApJ...959...27R 2023ApJ...959...27R
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 29-Aug-2022