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2022A&A...622A...1Shimwell+
!!!New LoTSS Data Release 2 (DR2)
https://lofar-surveys.org/dr2_release.html
2022A&A...659...A1Shimwell+ LOFAR Two-metre Sky Survey V. Second data release
J/A+A/622/A1 LOFAR Two-metre Sky Survey DR1 source catalog (Shimwell+, 2019)
================================================================================
The LOFAR Two-metre Sky Survey. II. First data release.
Shimwell T.W., Tasse C., Hardcastle M.J., Mechev A.P., Williams W.L.,
Best P.N., Rottgering H.J.A., Callingham J.R., Dijkema T.J.,
De Gasperin F., Hoang D.N., Hugo B., Mirmont M., Oonk J.B.R., Prandoni I.,
Rafferty D., Sabater J., Smirnov O., Van Weeren R.J., White G.J.,
Atemkeng M., Bester L., Bonnassieux E., Bruggen M., Brunetti G.,
Chyzy K.T., Cochrane R., Conway J.E., Croston J.H., Danezi A., Duncan K.,
Haverkorn M., Heald G.H., Iacobelli M., Intema H.T., Jackson N.,
Jamrozy M., Jarvis M.J., Lakhoo R., Mevius M., Miley G.K., Morabito L.,
Morganti R., Nisbet D., Orru E., Perkins S., Pizzo R.F., Schrijvers C.,
Smith D.J.B., Vermeulen R., Wise M.W., Alegre L., Bacon D.J.,
Van Bemmel I.M., Beswick R.J., Bonafede A., Botteon A., Bourke S.,
Brienza M., Calistro Rivera G., Cassano R., Clarke A.O., Conselice C.J.,
Dettmar R.J., Drabent A., Dumba C., Emig K.L., Ensslin T.A., Ferrari C.,
Garrett M.A., Genova-santos R.T., Goyal A., Gurkan G., Hale C.,
Harwood J.J., Heesen V., Hoeft M., Horellou C., Jackson C., Kokotanekov G.,
Kondapally R., Kunert-bajraszewska M., Mahatma V., Mahony E.K., Mandal S.,
Mckean J.P., Merloni A., Mingo B., Miskolczi A., Mooney S.,
Nikiel-wroczynski B., O'sullivan S.P., Quinn J., Reich W., Roskowinski C.,
Rowlinson A., Savini F., Saxena A., Schwarz D.J., Shulevski A.,
Sridhar S.S., Stacey H.R., Urquhart S., Van Der Wiel M.H.D., Varenius E.,
Webster B., Wilber A.
=2019A&A...622A...1S (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: Surveys ; Radio sources
Keywords: surveys - catalogs - radio continuum: general -
techniques: image processing
Abstract:
The LOFAR Two-metre Sky Survey (LoTSS) is an ongoing sensitive,
high-resolution 120-168MHz survey of the entire northern sky for
which observations are now 20% complete. We present our first
full-quality public data release. For this data release 424 square
degrees, or 2% of the eventual coverage, in the region of the HETDEX
Spring Field (right ascension 10h45m00s to 15h30m00s and declination
45{deg}00'00'' to 57{deg}00'00'') were mapped using a fully automated
direction-dependent calibration and imaging pipeline that we
developed. A total of 325694 sources are detected with a signal of at
least five times the noise, and the source density is a factor of ~10
higher than the most sensitive existing very wide-area radio-continuum
surveys. The median sensitivity is S_144MHz_=71{mu}Jy/beam and the
point-source completeness is 90% at an integrated flux density of
0.45mJy. The resolution of the images is 6'' and the positional
accuracy is within 0.2''. This data release consists of a catalogue
containing location, flux, and shape estimates together with 58 mosaic
images that cover the catalogued area. In this paper we provide an
overview of the data release with a focus on the processing of the
LOFAR data and the characteristics of the resulting images. In two
accompanying papers we provide the radio source associations and
deblending and, where possible, the optical identifications of the
radio sources together with the photometric redshifts and properties
of the host galaxies. These data release papers are published together
with a further ~20 articles that highlight the scientific potential of
LoTSS.
Description:
In this paper we focus on 63 LoTSS data sets (2% of the total survey)
in the region of the HETDEX Spring Field that were observed between
2014 May 23 and 2015 October 15. Each 8h observation was bookended by
10min calibrator observations (primarily 3C 196 and 3C 295) and the
data are archived with a time resolution of 1s and a frequency
resolution of 16 channels per 195.3kHz sub-band (SB) by the
observatory.
This catalogue DR1 contains 325694 radio sources, has a source density of
770 sources per square degree and a point-source completeness of 90%
at an integrated flux density of 0.45mJy.
In this data release from the ongoing LOw-Frequency ARray (LOFAR)
Two-metre Sky Survey (LoTSS) we present 120-168 MHz images covering 27%
of the northern sky. Our coverage is split into two regions centred at
approximately 12h45m +44d30 and 01h00m +28d00,
and spanning 4178 and 1457 square degrees respectively. The images were
derived from 3,451 hrs (7.6 PB) of LOFAR High Band Antenna data which
were corrected for the direction-independent instrumental properties as
well as direction-dependent ionospheric distortions during extensive,
but fully automated, data processing. A catalogue of 4,396,228 radio
sources is derived from our total intensity (Stokes I) maps, where the
majority of these have never been detected at radio wavelengths before.
At 6'' resolution, our full bandwidth Stokes I continuum maps with
a central frequency of 144 MHz have: a median rms sensitivity of 83
muJy/beam; a flux density scale accuracy of approximately 10%; an
astrometric accuracy of 0.2''
and we estimate the point-source completeness to be 90% at a peak
brightness of 0.8 mJy/beam. By creating three 16 MHz bandwidth images
across the band we are able to measure the in-band spectral index of
many sources, albeit with an error on the derived spectral index of >
+-0.2 which is a consequence of our flux-density scale accuracy and small
fractional bandwidth. Our circular polarisation (Stokes V) 20''
resolution 120-168 MHz continuum images have a median rms sensitivity
of 95 % Jy/beam, and we estimate a Stokes I to Stokes V leakage of
0.056%. Our linear polarisation (Stokes Q and Stokes U) image cubes
consist of 480 97.6 kHz wide planes and have a median rms sensitivity
per plane of 10.8 mJy/beam at 4' and 2.2mJy/beam at 20''
we estimate the Stokes I to Stokes Q/U leakage to be approximately
0.2%. Here we publicly release our Stokes I, Q, U and V images in
addition to the calibrated uv-data to facilitate the thorough scientific
exploitation of this unique dataset.
The data are described by Shimwell et al (2022). Below we provide links
to various ways to access the data and catalogues. Please cite the survey
paper and see our credits pages if using these images for science.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
lotssdr1.dat 197 325694 LoTSS-DR1 source catalogue
merge.dat 1416 318520 Value added radio source catalogue of LoTSS-DR1
--------------------------------------------------------------------------------
See also:
J/A+A/622/A4 : LOFAR observations XMM-LSS field (Hale+, 2019)
J/A+A/622/A8 : NGC 3184, 4736, 5055 and 5194 LOFAR + WSRT maps (Heesen+, 2019)
J/A+A/622/A11 : LoTSS/HETDEX. Optical quasars. I. (Guerkan+, 2019)
J/A+A/622/A13 : VLA double-double radio galaxy candidates images
(Mahatma+, 2019)
J/A+A/622/A15 : Broad absorption line quasars in LDR1 (Morabito+, 2019)
J/A+A/622/A22 : Abell 1914 multiwavelength radio images (Mandal+, 2019)
J/A+A/622/A23 : LoTSS HCG and MLCG systems (Nikiel-wroczynski+, 2019)
J/A+A/623/A71 : LOTSS HETDEX Faraday depth cube (Van Eck+, 2019)
https://lofar-surveys.org/releases.html : LOFAR Home Page
Byte-by-byte Description of file: lotssdr1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 22 A22 --- Source Source name (ILTJHHMMSS.ss+DDMMSS.s)
24- 31 F8.4 deg RAdeg Right ascension (J2000)
33- 36 F4.1 arcsec e_RAdeg rms uncertainty on RA
38- 41 F4.1 arcsec e_RAdegTot Total rms uncertainty on RA
43- 50 F8.4 deg DEdeg Declination (J2000)
52- 55 F4.1 arcsec e_DEdeg rms uncertainty on DE
57- 60 F4.1 arcsec e_DEdegTot Total rms uncertainty on DE
62- 67 F6.1 mJy/beam Speak Peak flux at 120-168MHz
69- 72 F4.1 mJy/beam e_Speak rms uncertainty on peak flux
74- 79 F6.1 mJy/beam e_SpeakTot Total rms uncertainty on peak flux
81- 87 F7.1 mJy Sint Total flux at 120-168MHz
89- 92 F4.1 mJy e_Sint rms uncertainty on total flux
94- 99 F6.1 mJy e_SintTot Total rms uncertainty on total flux
101-105 F5.1 arcsec Maj Major axis
107-111 F5.1 arcsec e_Maj rms uncertainty on major axis
113-117 F5.1 arcsec Min Minor axis
119-123 F5.1 arcsec e_Min rms uncertainty on minor axis
125-129 F5.1 arcsec DCMaj Deconvolved major axis
131-135 F5.1 arcsec e_DCMaj rms uncertainty on deconvolved major axis
137-141 F5.1 arcsec DCMin Deconvolved minor axis
143-147 F5.1 arcsec e_DCMin rms uncertainty on deconvolved minor axis
149-153 F5.1 deg PA Position angle
155-159 F5.1 deg e_PA rms uncertainty on position angle
161-165 F5.1 deg DCPA Deconvolved on position angle
167-171 F5.1 deg e_DCPA rms uncertainty on deconvolved position angle
173-177 F5.2 mJy/beam rms Local noise at the position of the source
179 A1 --- Type Type of source as classified by PyBDSF (G1)
181-191 A11 --- Mosaic Mosaic identifier
193-197 I5 --- Npoint Number of pointing
--------------------------------------------------------------------------------
Byte-by-byte Description of file: merge.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 22 A22 --- Source Source name (ILTJHHMMSS.ss+DDMMSS.s)
(Source_Name)
24- 31 F8.4 deg RAdeg Right ascension (J2000) (RA)
33- 36 F4.1 arcsec e_RAdeg rms uncertainty on RA (E_RA)
38- 45 F8.4 deg DEdeg Declination (J2000) (DEC)
47- 50 F4.1 arcsec e_DEdeg rms uncertainty on DE (E_DEC)
52- 57 F6.1 mJy/beam Speak Peak flux (Peak_flux)
59- 62 F4.1 mJy/beam e_Speak rms uncertainty on peak flux (E_Peak_flux)
64- 70 F7.1 mJy Sint Total flux (Total_flux)
72- 75 F4.1 mJy e_Sint rms uncertainty on total flux
(E_Total_flux)
77- 81 F5.1 arcsec Maj ? Major axis (Maj)
83- 87 F5.1 arcsec e_Maj ? rms uncertainty on major axis (E_Maj)
89- 93 F5.1 arcsec Min ? Minor axis (Min)
95- 99 F5.1 arcsec e_Min ? rms uncertainty on minor axis (E_Min)
101- 105 F5.1 arcsec DCMaj ? Deconvolved major axis (DC_Maj)
107- 111 F5.1 arcsec e_DCMaj ? rms uncertainty on deconvolved major
axis (E_DC_Maj)
113- 117 F5.1 arcsec DCMin ? Deconvolved minor axis (DC_Min)
119- 123 F5.1 arcsec e_DCMin ? rms uncertainty on deconvolved minor
axis (E_DC_Min)
125- 129 F5.1 deg PA ? Position angle (PA)
131- 135 F5.1 deg e_PA ? rms uncertainty on position angle (E_PA)
137- 141 F5.1 deg DCPA ? Deconvolved on position angle (DC_PA)
143- 147 F5.1 deg e_DCPA ? rms uncertainty on deconvolved
position angle (E_DC_PA)
149- 153 F5.2 mJy/beam rms Local noise at the position of the source
(Isl_rms)
155 A1 --- Type Type of source as classified by PyBDSF
(S_Code) (G1)
157- 167 A11 --- Mosaic Mosaic identifier (Mosaic_ID)
169- 173 I5 --- MaskFrac ? The fraction of the source that is in
the CLEAN mask (Masked_Fraction)
175- 176 I2 --- Idflag Flag indicating the origin of the optical
identification (ID_flag) (1)
178- 204 A27 --- IdName PanSTARRs, AllWISE, 2MASX or SDSS name of
optical identification (ID_name)
206- 213 F8.4 deg RAodeg ? Right ascension of optical
identification (J2000) (ID_ra)
215- 222 F8.4 deg DEodeg ? Declination of optical identification
(J2000) (ID_dec)
224- 233 F10.5 --- MLLR ? Likelihood ratio from maximum likelihood
analysis (ML_LR)
235- 241 F7.2 arcsec LGZsize ? Length of the largest diameter of the
convex hull around the set of component
elliptical Gaussians (LGZ_Size)
243- 249 F7.3 arcsec LGZwidth ? Twice the maximum perpendicular distance
of points on the convex hull to the
largest diameter line (LGZ_Width)
251- 257 F7.3 deg LGZPA ? The position angle on the sky, measured
east of north, of that largest diameter
(LGZ_PA)
259- 260 I2 --- LGZassoc ? Number of sources in the LGZ association
(LGZ_Assoc)
262- 265 F4.2 --- q_LGZassoc [0/1]? LGZ association quality flag
(LGZ_Assoc_Qual)
267 I1 --- q_IdName [0/1]? LGZ identification quality flag
(LGZ_ID_Qual)
269- 290 A22 --- Deblend Name of PyBDSF multiple Gaussian component
source from which this source was
deblended (Deblended_from)
292- 310 A19 --- AllWISE Name of the source in the AllWISE catalog
(AllWISE)
312- 329 A18 --- objID The PanSTARRs object ID (objID)
331- 352 E22.15 uJy Fgapf ? PanSTARRs g-band forced aperture
photometry flux (gFApFlux)
354- 375 E22.15 uJy e_Fgapf []? PanSTARRs g-band forced aperture
photometry flux error (gFApFluxErr)
377- 383 F7.4 mag gmagapf ? PanSTARRs g-band forced aperture
photometry magnitude (gFApMag)
385- 393 F9.4 mag e_gmagapf ? PanSTARRs g-band forced aperture
photometry magnitude error (gFApMagErr)
395- 416 E22.15 uJy Frapf ? PanSTARRs r-band forced aperture
photometry flux (rFApFlux)
418- 439 E22.15 uJy e_Frapf []? PanSTARRs r-band forced aperture
photometry flux error (rFApFluxErr)
441- 447 F7.4 mag rmagapf ? PanSTARRs r-band forced aperture
photometry magnitude (rFApMag)
449- 458 F10.4 mag e_rmagapf ? PanSTARRs r-band forced aperture
photometry magnitude error (rFApMagErr)
460- 481 E22.15 uJy Fiapf ? PanSTARRs i-band forced aperture
photometry flux (iFApFlux)
483- 504 E22.15 uJy e_Fiapf []? PanSTARRs i-band forced aperture
photometry flux error (iFApFluxErr)
506- 512 F7.4 mag imagapf ? PanSTARRs i-band forced aperture
photometry magnitude (iFApMag)
514- 522 F9.4 mag e_imagapf ? PanSTARRs i-band forced aperture
photometry magnitude error (iFApMagErr)
524- 545 E22.15 uJy Fzapf ? PanSTARRs z-band forced aperture
photometry flux (zFApFlux)
547- 568 E22.15 uJy e_Fzapf []? PanSTARRs z-band forced aperture
photometry flux error (zFApFluxErr)
570- 576 F7.4 mag zmagapf ? PanSTARRs z-band forced aperture
photometry magnitude (zFApMag)
578- 586 F9.4 mag e_zmagapf ? PanSTARRs z-band forced aperture
photometry magnitude error (zFApMagErr)
588- 609 E22.15 uJy Fyapf ? PanSTARRs y-band forced aperture
photometry flux (yFApFlux)
611- 632 E22.15 uJy e_Fyapf []? PanSTARRs y-band forced aperture
photometry flux error (yFApFluxErr)
634- 640 F7.4 mag ymagapf ? PanSTARRs y-band forced aperture
photometry magnitude (yFApMag)
642- 650 F9.4 mag e_ymagapf ? PanSTARRs y-band forced aperture
photometry magnitude error (yFApMagErr)
652- 673 E22.15 uJy FgKrf ? PanSTARRs g-band forced photometry
Kron flux (gFKronFlux)
675- 696 E22.15 uJy e_FgKrf []? PanSTARRs g-band forced photometry
Kron flux error (gFKronFluxErr)
698- 719 E22.15 mag rmagKrf ? PanSTARRs r-band forced photometry
Kron flux (rFKronFlux)
721- 742 E22.15 mag e_rmagKrf []? PanSTARRs r-band forced photometry
Kron flux error (rFKronFluxErr)
744- 765 E22.15 uJy FiKrf ? PanSTARRs i-band forced photometry
Kron flux (iFKronFlux)
767- 788 E22.15 uJy e_FiKrf []? PanSTARRs i-band forced photometry
Kron flux error (iFKronFluxErr)
790- 811 E22.15 uJy FzKrf ? PanSTARRs z-band forced photometry
Kron flux (zFKronFlux)
813- 834 E22.15 uJy e_FzKrf []? PanSTARRs z-band forced photometry
Kron flux error (zFKronFluxErr)
836- 857 E22.15 uJy FyKrf ? PanSTARRs y-band forced photometry
Kron flux (yFKronFlux)
859- 880 E22.15 uJy e_FyKrf []? PanSTARRs y-band forced photometry
Kron flux error (yFKronFluxErr)
882- 903 E22.15 uJy FW1pf ? AllWISE W1 profile-fit photometry flux
(w1Flux)
905- 926 E22.15 uJy e_FW1pf ? AllWISE W1 profile-fit photometry flux
error (w1FluxErr)
928- 934 F7.4 mag W1magpf ? AllWISE W1 profile-fit photometry
magnitude (w1Mag)
936- 942 F7.4 mag e_W1magpf ? AllWISE W1 profile-fit photometry
magnitude error (w1MagErr)
944- 965 E22.15 uJy FW2pf ? AllWISE W2 profile-fit photometry flux
(w2Flux)
967- 988 E22.15 uJy e_FW2pf ? AllWISE W2 profile-fit photometry flux
error (w2FluxErr)
990- 996 F7.4 mag W2magpf ? AllWISE W2 profile-fit photometry
magnitude (w2Mag)
998-1004 F7.4 mag e_W2magpf ? AllWISE W2 profile-fit photometry
magnitude error (w2MagErr)
1006-1027 E22.15 uJy FW3pf ? AllWISE W3 profile-fit photometry flux
(w3Flux)
1029-1050 E22.15 uJy e_FW3pf ? AllWISE W3 profile-fit photometry flux
error (w3FluxErr)
1052-1058 F7.4 mag W3magpf ? AllWISE W3 profile-fit photometry
magnitude (w3Mag)
1060-1066 F7.4 mag e_W3magpf ? AllWISE W3 profile-fit photometry
magnitude error (w3MagErr)
1068-1089 E22.15 uJy FW4pf ? AllWISE W4 profile-fit photometry flux
(w4Flux)
1091-1112 E22.15 uJy e_FW4pf ? AllWISE W4 profile-fit photometry flux
error (w4FluxErr)
1114-1120 F7.4 mag W4magpf ? AllWISE W4 profile-fit photometry
magnitude (w4Mag)
1122-1128 F7.4 mag e_W4magpf ? AllWISE W4 profile-fit photometry
magnitude error (w4MagErr)
1130-1138 F9.6 --- zbest ? Best available redshift estimate
(z_best)
1140 I1 --- f_zbest [0/1]? Source of zbest (z_best_source) (2)
1142-1150 F9.6 --- zsp ? Literature Spectroscopic Redshift
(z_spec)
1152 I1 --- r_zsp [1/32]? Source of zsp (z_spec_source) (3)
1154-1161 F8.6 --- z1med ? Median of the primary redshift peak
above 80% HPD CI (z1_median)
1163-1170 F8.6 --- z1min ? Lower bound of the primary 80% HPD CI
peak (z1_min)
1172-1179 F8.6 --- z1max ? Upper bound of the primary 80% HPD CI
peak (z1_max)
1181-1188 F8.6 --- z1area ? Integrated area of the primary 80%
HPD CI peak (z1_area)
1190-1197 F8.6 --- z2med ? Median of the secondary redshift peak
(if present) above 80% HPD CI (z2_median)
1199-1206 F8.6 --- z2min ? Lower bound of the secondary 80% HPD CI
peak (z2_min)
1208-1215 F8.6 --- z2max ? Upper bound of the secondary 80% HPD CI
peak (z2_max)
1217-1224 F8.6 --- z2area ? Integrated area of the secondary 80%
HPD CI peak (z2_area)
1226 I1 --- fAGN [0/1]? Flag indicating spectroscopically
identified AGN (specAGN)
1228 I1 --- fMQCc [0/1] Flag indicating source is included
in Million Quasar Catalog compilation
(mqcAGN)
1230 I1 --- XrayClass [0/2]? 2RXS or XMMSL2 X-ray source class
(XrayClass) (4)
1232-1252 A21 --- 2RXS ID in 2RXS catalog (if available)
(2RXS_ID)
1254-1276 A23 --- XMMSL2 ID in XMMSL2 catalog (XMMSL2_ID)
1278-1279 I2 --- IRClass ? Bit-flag indicating WISE AGN Class
(IRClass) (5)
1281-1288 F8.6 mag E(B-V) ? E(B-V) galactic extinction for the
source (EBV) (6)
1290 I1 --- missingPS [0/1] Missing in PanSTARRS
(PanSTARRS_missing)
1292-1299 F8.4 mag umag ? Estimated rest frame u-band magnitude
(for z_best) (u_rest)
1301-1308 F8.4 mag gmag ? Estimated rest frame g-band magnitude
(for z_best) (g_rest)
1310-1317 F8.4 mag rmag ? Estimated rest frame r-band magnitude
(for z_best) (r_rest)
1319-1326 F8.4 mag imag ? Estimated rest frame i-band magnitude
(for z_best) (i_rest)
1328-1335 F8.4 mag zmag ? Estimated rest frame z-band magnitude
(for z_best) (z_rest)
1337-1344 F8.4 mag Umag ? Estimated rest frame U-band magnitude
(for z_best) (U_rest)
1346-1353 F8.4 mag Bmag ? Estimated rest frame B-band magnitude
(for z_best) (B_rest)
1355-1362 F8.4 mag Vmag ? Estimated rest frame V-band magnitude
(for z_best) (V_rest)
1364-1371 F8.4 mag Imag ? Estimated rest frame I-band magnitude
(for z_best) (I_rest)
1373-1380 F8.4 mag Jmag ? Estimated rest frame J-band magnitude
(for z_best) (J_rest)
1382-1389 F8.4 mag Ksmag ? Estimated rest frame Ks-band magnitude
(for z_best) (Ks_rest)
1391-1398 F8.4 mag W1mag ? Estimated rest frame W1-band magnitude
(for z_best) (w1_rest)
1400-1407 F8.4 mag W2mag ? Estimated rest frame W2-band magnitude
(for z_best) (w2_rest)
1409-1416 F8.4 mag W3mag ? Estimated rest frame W3-band magnitude
(for z_best) (w3_rest)
--------------------------------------------------------------------------------
Note (1): Flag indicating the origin of the optical identification as follows:
0 = no ID possible (too large or otherwise difficult)
1 = identification (or alck thereof) from maximum likelihood analysis
2 = match to a bright galaxy (either 2MASX or SDSS)
31 = association and identification (or lack therof) from LGZ,
output from LGZ (too-zoomed-in)
32 = association and identification (or lack therof) from LGZ,
output from LGZ
41 = association and identification (or lack therof) through deblend workflow
deblend following flowchart classification of m sources
42 = association and identification (or lack therof) through deblend workflow
deblend following LG
Note (2): Source of zbest as follows:
0 = photometric
1 = spectroscopic
Note (3): Source of zsp as follows:
1 = SDSS
2 = DEEP 2/3
4 = 3D-HST
8 = Steidel et al. (2003ApJ...592..728S)
16 = AEGIS-X
32 = Huang et al. (2009ApJ...700..183H)
Note (4): 2RXS or XMMSL2 X-ray source class code as follows:
1 = AGN,
2 = Galaxy/Star
Note (5): Bit-flag indicating WISE AGN Class based on Assef et al.
(2012ApJ...753L...2A) selection criteria as follows:
1 = 90% Completeness criteria
2 = 75% Completeness criteria
4 = 75% Reliability criteria
8 = 90% Reliability criteria
Note (6): based on its position and Schlegel, Finkbeiner and Davis
(1998ApJ...500..525S) extinction maps - http://argonaut.skymaps.info.
Fluxes and magnitudes in the catalog have already been corrected based on
this value.
--------------------------------------------------------------------------------
Global notes:
Note (G1): Type as follows:
S = isolated source that is fit with a single Gaussian
C = sources that are fit by a single Gaussian but are within an island of
emission that also contains other sources
M = sources that are extended and fitted with multiple Gaussians
--------------------------------------------------------------------------------
Acknowledgements:
Timothy Shimwell, shimwell(at)astron.nl
Wendy Williams, wwilliams(at)strw.leidenuniv.nl
Kenneth Duncan, duncan(at)strw.leidenuniv.nl
References:
Williams et al., Paper II 2019A&A...622A...2W
Duncan et al., Paper III 2019A&A...622A...3D
Hale et al., Paper IV 2019A&A...622A...4H, Cat. J/A+A/622/A4
de Gasperin et al., Paper V 2019A&A...622A...5D
Arias et al., Paper VI 2019A&A...622A...6A
Emig et al., Paper VII 2019A&A...622A...7E
Heesen et al., Paper VIII 2019A&A...622A...8H, Cat, J/A+A/622/A8
Miskolczi et al., Paper IX 2019A&A...622A...9M
Croston et al., Paper X 2019A&A...622A..10C
Gurkan et al., Paper XI 2019A&A...622A..11G, Cat. J/A+A/622/A11
Hardcastle et al., Paper XII 2019A&A...622A..12H
Mahatma et al., Paper XIII 2019A&A...622A..13M, Cat. J/A+A/622/A13
Mooney et al., Paper XIV 2019A&A...622A..14M
Morabito et al., Paper XV 2019A&A...622A..15M, Cat. J/A+A/622/A15
O'Sullivan et al., Paper XVI 2019A&A...622A..16O
Sabater et al., Paper XVII 2019A&A...622A..17S
Stacey et al., Paper XVIII 2019A&A...622A..18S
Botteon et al., Paper XIX 2019A&A...622A..19B
Hoang et al., Paper XX 2019A&A...622A..20H
Hoang et al., Paper XXI 2019A&A...622A..21H
Mandal et al., Paper XXII 2019A&A...622A..22M, Cat. J/A+A/622/A22
Nikiel-Wroczynski et al., Paper XXIII 2019A&A...622A..23N
Savini et al., Paper XXIV 2019A&A...622A..24S
Wiber et al., Paper XXV 2019A&A...622A..25W
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(End) Patricia Vannier [CDS] 13-Jun-2019