II/366 ASAS-SN catalog of variable stars (Jayasinghe+, 2018-2020)
The ASAS-SN catalogue of variable stars I: The Serendipitous Survey.
Jayasinghe T., Kochanek C.S., Stanek K.Z., Shappee B.J., Holoien T.W.-S.,
Thompson T.A., Prieto J.L., Dong S., Pawlak M., Shields J.V., Pojmanski G.,
Otero S., Britt C.A., Will D.
<Mon. Not. R. Astron. Soc., 477, 3145-3163 (2018)>
=2018MNRAS.477.3145J 2018MNRAS.477.3145J (SIMBAD/NED BibCode)
+2019MNRAS.486.1907J 2019MNRAS.486.1907J (Paper II)
+2019MNRAS.485..961J 2019MNRAS.485..961J (Paper III)
+2019MNRAS.487.5932P 2019MNRAS.487.5932P (Paper IV)
+2020MNRAS.491...13J 2020MNRAS.491...13J (Paper V)
+2020MNRAS.493.4186J 2020MNRAS.493.4186J (Paper VI)
+2021MNRAS.503..200J 2021MNRAS.503..200J (Paper IX)
ADC_Keywords: Stars, variable; Photometry, UBVRI; Cross identifications;
Proper motions; Surveys
Keywords: catalogues; surveys; binaries: eclipsing; stars: variables: general
Abstract:
The All-Sky Automated Survey for Supernovae (ASAS-SN) is the first
optical survey to routinely monitor the whole sky with a cadence of
∼2-3d down to V≲17mag. ASAS-SN has monitored the whole sky since
2014, collecting ∼100-500 epochs of observations per field. The V-band
light curves for candidate variables identified during the search for
supernovae are classified using a random forest classifier and
visually verified.
In Paper I (Jayasinghe+ 2018MNRAS.477.3145J 2018MNRAS.477.3145J), we present a catalogue
of 66179 bright, new variable stars discovered during our search for
supernovae, including 27479 periodic variables and 38700 irregular
variables.
In paper II (Jayasinghe+ 2019MNRAS.486.1907J 2019MNRAS.486.1907J), We extracted the
ASAS-SN light curves of ∼412000 variable stars previously discovered
by other surveys and in the VSX catalogue.
In paper III (Jayasinghe+ 2019MNRAS.485..961J 2019MNRAS.485..961J), we extracted the
ASAS-SN light curves of ∼1.3 million sources within 18deg of the
Southern Ecliptic Pole. These sources are within the southern TESS CVZ
and will have well-sampled TESS light curves.
In Paper IV (Pawlak+ 2019MNRAS.487.5932P 2019MNRAS.487.5932P), we have also explored the
synergy between ASAS-SN and large-scale spectroscopic surveys using
data from apogee.
In Paper V (Jayasinghe+ 2020MNRAS.491...13J 2020MNRAS.491...13J), we identified ∼220000
variable sources with V<17mag in the southern hemisphere, of which
∼88300 were new discoveries.
In Paper VI (Jayasinghe+ 2020MNRAS.493.4186J 2020MNRAS.493.4186J), we derived
period-luminosity relationships for δ Scuti stars.
In Paper VII (Jayasinghe+ 2020MNRAS.493.4045J 2020MNRAS.493.4045J), we studied contact
binaries.
In Paper VIII (Bredall+ 2020, J/MNRAS/496/3257), we identified 11 new
"dipper" stars in the Lupus star-forming region.
In Paper IX (Jayasinghe+ 2021MNRAS.503..200J 2021MNRAS.503..200J), we used spectroscopic
information from LAMOST, GALAH, RAVE, and apogee to study the physical
and chemical properties of these variables.
In Paper X (Christy+ 2023MNRAS.519.5271C 2023MNRAS.519.5271C), we present the first
all-sky catalogue of variables detected in the newer, deeper, higher
cadence g-band ASAS-SN data.
Description:
This catalogue was compiled using observations taken by the "Brutus"
(Haleakala, Hawaii) and "Cassius" (CTIO, Chile) quadruple telescopes
between 2013 and 2018 with ∼200-600 epochs of observation for each
field to a depth of V≲17mag. The field of view of a single ASAS-SN
camera is 4.5deg2, the pixel scale is 8.0", and the full width at
half-maximum (FWHM) is ∼2pixels. The ASAS-SN cameras capture three 90s
images for every epoch which are merged to improve the signal-to-noise
ratio (S/N). ASAS-SN saturates at ∼10-11mag depending on the camera
and image position (Kochanek+ 2017PASP..129j4502K 2017PASP..129j4502K).
Starting in 2017, ASAS-SN expanded to five units with 20 telescopes.
The ASAS-SN telescopes are hosted by the Las Cumbres Observatory (LCO)
in Hawaii, Chile, Texas, and South Africa.
Since 2018, ASAS-SN has shifted to using a g-band filter and expanded
to 20 cameras on 5 mounts, adding new units in South Africa, Texas,
and Chile. The g-band observations added data from the "Payne"
(Sutherland, South Africa), "Bohdan" (CTIO, Chile), and "Leavitt"
(McDonald, Texas) quadruple telescopes.
Acknowledging ASAS-SN in publications:
When using ASAS-SN light curves in publications cite:
Shappee et al. (2014, J/ApJ/788/48) and either:
(i) The ASAS-SN Catalog of Variable Stars I:
Jayasinghe et al. (2018MNRAS.477.3145J 2018MNRAS.477.3145J) or
(ii) The ASAS-SN Catalog of Variable Stars II:
Jayasinghe et al. (2019MNRAS.486.1907J 2019MNRAS.486.1907J) , or
(iii) The ASAS-SN Catalog of Variable Stars III:
Jayasinghe et al. (2019MNRAS.485..961J 2019MNRAS.485..961J).
(iv) The ASAS-SN Catalog of Variable Stars V:
Jayasinghe et al. (2020MNRAS.491...13J 2020MNRAS.491...13J).
(v) The ASAS-SN Catalog of Variable Stars IX:
Jayasinghe et al. (2021MNRAS.503..200J 2021MNRAS.503..200J).
(vi) The ASAS-SN Catalog of Variable Stars X:
Christy et al. (2023MNRAS.519.5271C 2023MNRAS.519.5271C).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catv2021.dat 799 687695 ASAS-SN catalog of variable stars
(from the ASAS-SN Variable Stars Database
(AVSD); http://asas-sn.osu.edu/variables
on 10-Sep-2024) (08-Oct-2021 version)
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See also:
B/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)
B/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)
II/264 : ASAS Variable Stars in Southern hemisphere (Pojmanski+, 2002-2005)
I/284 : The USNO-B1.0 Catalog (Monet+ 2003)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
I/317 : The PPMXL Catalog (Roeser+ 2010)
I/322 : UCAC4 Catalogue (Zacharias+, 2012)
II/328 : AllWISE Data Release (Cutri+ 2013)
IX/43 : 1SXPS Swift X-ray telescope point source catalogue (Evans+ 2014)
II/335 : Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)
I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)
I/358 : Gaia DR3 Part 4. Variability (Gaia Collaboration, 2022)
J/A+A/389/149 : EROSII periodic stars towards Gal. spiral arm (Derue+, 2002)
J/AJ/128/1761 : HATNET variability survey (Hartman+, 2004)
J/MNRAS/370/1979 : JHKs photom. of T2Cs in globular clusters (Matsunaga+, 2006)
J/AJ/132/1202 : RR Lyrae in Northern Sky Var. Survey (Kinemuchi+, 2006)
J/AJ/134/2353 : Observations of contact binaries (Rucinski+, 2007)
J/MNRAS/386/313 : IR observations of Mira variables (Whitelock+, 2008)
J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)
J/AN/333/706 : Bochum survey of the southern Galactic disk (Haas+, 2012)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/PASP/126/509 : Double-mode RR Lyrae stars in LINEAR (Poleski+, 2014)
J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014)
J/MNRAS/453/1879 : EC Blue Object survey. -40°>b>-50° (Kilkenny+, 2015)
J/AcA/65/297 : OGLE4 LMC and SMC Cepheids (Soszynski+, 2015)
J/MNRAS/456/2260 : K2 Variability Catalogue II (Armstrong+, 2016)
J/AcA/66/405 : Gal. bulge eclipsing & ellipsoidal bin. (Soszynski+, 2016)
J/AcA/66/421 : Eclipsing binaries in the Magellanic System (Pawlak+, 2016)
J/MNRAS/471/4966 : ASAS-SN bright supernova catalogue 2016 (Holoien+, 2017)
J/AJ/155/53 : Disk variability in Be stars (Labadie-Bartz+, 2018)
J/MNRAS/496/3257 : The ASAS-SN catalog of variable stars VIII (Bredall+, 2020)
J/MNRAS/507/104 : Ellipsoidal variables in ASAS-SN catalog (Rowan+, 2021)
J/ApJ/910/120 : Dwarf nova outbursts detected by ASAS-SN (Kawash+, 2021)
J/ApJ/914/127 : Gaia-ASAS-SN classical Cepheid sample. I. (Inno+, 2021)
J/A+A/682/A88 : LSP in ASAS-SN and Gaia (Pawlak+, 2024)
http://asas-sn.osu.edu/variables : ASAS-SN online variable stars database
Byte-by-byte Description of file: catv2021.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- ID Internal identifier (source_id)
21- 28 A8 --- --- [ASASSNV-]
30- 48 A19 --- ASASSN-V ASAS-SN identifier (JHHMMSS.ss+DDMMSS.s)
(asassn_name)
50- 79 A30 --- OName Other name (other_names)
81- 89 F9.5 deg RAdeg Right ascension in decimal degrees (J2000)
91- 99 E9.5 deg DEdeg Declination in decimal degrees (J2000)
101-109 F9.5 deg GLON [0.00017/360] Galactic longitude (l)
111-119 E9.5 deg GLAT [-89.86/89.9] Galactic latitude (b)
121-125 F5.2 mag Vmag [1.64/18.89] Mean Johnson V-band magnitude
(mean_vmag)
127-131 F5.2 mag Amp [0/11.31] Amplitude (amplitude)
133-144 E12.6 d Per [0.03/1923]? Period (period)
146-153 A8 --- Type Variability type (variable_type) (1)
155-159 F5.3 --- Prob [0.19/1]? Classification probability
(class_probability)
161-164 F4.2 --- LKSL [0/1.53] LKSL statistic (lksl_statistic)
166-170 F5.2 --- RFR [0/1] Random forest (RF) regression value
(see Section 5 in Pap. II: 2019MNRAS.486.1907J 2019MNRAS.486.1907J)
(rfr_score)
172-184 F13.5 d HJD Heliocentric Julian Date (epoch_hjd)
186-204 I19 --- GaiaDR2 ? Gaia DR2 identifier;
some IDs are still problematic (gdr2_id)
206-214 F9.6 mag Gmag [1.7/22.6]? Gaia G-band mean magnitude
(photgmean_mag)
216-223 F8.6 mag e_Gmag [0/3]? Error on Gmag (ephotgmeanmag)
225-233 F9.6 mag BPmag [2.3/24.7]? Gaia BP-band mean magnitude
(photbpmean_mag)
235-242 F8.6 mag e_BPmag [0.0001/8]? Error on BPmag (ephotbpmeanmag)
244-252 F9.6 mag RPmag [1.74/22.4]? Gaia RP-band mean magnitude
(photrpmean_mag)
254-261 F8.6 mag e_RPmag [0.0002/4.3]? Error on RPmag
(ephotrpmeanmag)
263-271 E9.6 mag BP-RP [-3.2/9]? BP-RP color index (bp_rp)
273-281 F9.5 mas Plx [-84.9/317]? Gaia DR2 parallax (parallax)
283-289 F7.5 mas e_Plx [0.007/4.4]? Parallax uncertainty
(parallax_error)
291-300 F10.4 --- PlxErr [-199.9/12907]? Parallax over error
(parallaxovererror)
302-312 F11.5 mas/yr pmRA [-3259/4003]? Gaia proper motion in right
ascension direction (pmRA*cosDE)
(pmra)
314-320 F7.5 mas/yr e_pmRA [0.005/5]? Error on pmRA (pmra_error)
322-332 F11.5 mas/yr pmDE [-5818/1793]? Gaia proper motion in
declination direction (pmdec)
334-340 F7.5 mas/yr e_pmDE [0.007/4.5]? Error on pmDE (pmdec_error)
342-365 F24.17 km/s Vt [0.003/418426]? Microturbulent velocity (vt)
367-380 F14.8 pc Dist [1.3/62100]? Distance (dist)
382-400 A19 --- WISEA AllWISE identifier (JHHMMSS.ss+DDMMSS.s)
(allwise_id)
402-407 F6.3 mag Jmag [-2.99/18.52]? 2MASS J-band magnitude (j_mag)
409-413 F5.3 mag e_Jmag [0.016/9.998]? Error on the J-band magnitude
(ejmag)
415-420 F6.3 mag Hmag [-4.1/18.1]? 2MASS H-band magnitude (h_mag)
422-426 F5.3 mag e_Hmag [0.014/9.998]? Error on the H-band magnitude
(ehmag)
428-433 F6.3 mag Ksmag [-4.4/17.5]? 2MASS Ks-band magnitude (k_mag)
435-439 F5.3 mag e_Ksmag [0.011/9.998]? Error on the Ks-band magnitude
(ekmag)
441-446 F6.3 mag W1mag [-2.4/19.5]? WISE W1 (3.4um) band
magnitude (w1_mag)
448-452 F5.3 mag e_W1mag [0.005/0.55]? Error on the W1mag (ew1mag)
454-459 F6.3 mag W2mag [-2.83/18.5]? WISE W2 (4.6um) band
magnitude (w2_mag)
461-465 F5.3 mag e_W2mag [0.002/0.55]? Error on W2mag (ew2mag)
467-472 F6.3 mag W3mag [-7.7/14]? WISE W3 (12um) band
magnitude (w3_mag)
474-478 F5.3 mag e_W3mag [0.002/0.55]? Error on W3mag (ew3mag)
480-485 F6.3 mag W4mag [-6.1/14.3]? WISE W4 (22um) band
magnitude (w4_mag)
487-491 F5.3 mag e_W4mag [0.001/0.55]? Error on W4mag (ew4mag)
493-498 F6.3 mag J-K [-9.6/9.7]? J-K color index (j_k)
500-505 F6.3 mag W1-W2 [-6.9/8]? W1-W2 color index (w1_w2)
507-512 F6.3 mag W3-W4 [-5.2/9.7]? W3-W4 color index (w3_w4)
514-521 I8 --- APASS [542/61176398]? APASS identifier (apassdr9id)
523-528 F6.3 mag VmagA [5.67/19.1]? APASS Johnson V-band magnitude
(apass_vmag)
530-534 F5.3 mag e_VmagA [0/4.9]? Error on VmagA (eapassvmag)
536-541 F6.3 mag BmagA [5.4/23]? APASS Johnson B-band magnitude
(apass_bmag)
543-547 F5.3 mag e_BmagA [0/9.964]? Error on BmagA (eapassbmag)
549-554 F6.3 mag gpmag [6.2/19.4]? APASS g'-band AB magnitude,
Sloan filter (apass_gpmag)
556-560 F5.3 mag e_gpmag [0/4.8]? Error on the g'-band magnitude
(eapassgpmag)
562-567 F6.3 mag rpmag [5.4/18.4]? APASS r'-band AB magnitude,
Sloan filter (apass_rpmag)
569-573 F5.3 mag e_rpmag [0/5.4]? Error on the r'-band magnitude
(eapassrpmag)
575-580 F6.3 mag ipmag [4.2/19]? APASS i'-band AB magnitude,
Sloan filter (apass_ipmag)
582-586 F5.3 mag e_ipmag [0/7.1]? Error on the i'-band magnitude
(eapassipmag)
588-593 F6.3 mag B-V [-3.4/9.81]? B-V color index (b_v)
595-601 F7.3 mag E(B-V) [0.003/143.6] Reddening E(B-V) (ebv)
603-623 E21.18 --- Xpos [-1/1]? (vector_x)
625-645 E21.18 --- Ypos [-1/1]? (vector_y)
647-667 E21.18 --- Zpos [-1/1]? (vector_z)
669-671 A3 --- Ref Reference (reference) (2)
673-677 A5 --- Perd Periodic ("false" or "true") (periodic)
679-683 A5 --- Class? Classified ("false" or "true") (classified)
685-689 A5 --- Disc ASAS-SN discovery ("false" or "true")
(asassn_discovery)
691-694 A4 --- --- [EDR3]
696-714 I19 --- GaiaDR3 ? Gaia EDR3 source ID (edr3sourceid)
716-720 A5 --- --- [GALEX]
722-737 A16 --- GALEX GALEX identifier (JHHMMSS.s+DDMMSS) (galex_id)
739-745 F7.4 mag FUVmag [10.63/23.41]? GALEX FUV magnitude (FUVmag)
747-752 F6.4 mag e_FUVmag [0.002/0.6]? FUVmag uncertainty (e_FUVmag)
754-760 F7.4 mag NUVmag [10.76/23.76]? GALEX NUV magnitude (NUVmag)
762-767 F6.4 mag e_NUVmag [0.001/0.5]? NUVmag uncertainty (e_NUVmag)
769-771 A3 --- --- [TIC]
773-783 I11 --- TIC ? TIC identifier (tic_id)
785-792 F8.3 mas/yr pm [0.006/7062]? Gaia EDR3 total proper motion
(pm)
794-799 F6.3 --- RUWE [0.39/84]? Gaia EDR3 Renormalised unit weight
error (ruwe)
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Note (1): Main variable type as follows:
CWA = W Virginis-type variables with P>8d (640 occurrences)
CWB = W Virginis-type variables with P<8d (736 occurrences)
DCEP = Fundamental mode classical Cepheids (1621 occurrences)
DCEPS = First overtone Cepheids (583 occurrences)
DSCT = δ Scuti variables (4584 occurrences)
DSCT: = Uncertain δ Scuti variables (430 occurrences)
EA = Detached Algol-type binaries (50095 occurrences)
EB = β Lyrae-type binaries (25932 occurrences)
EW = W Ursae Majoris-type binaries (78503 occurrences)
HADS = High amplitude δ Scuti variables (4428 occurrences)
M = Mira variables (10329 occurrences)
M: = Uncertaint Mira variables (922 occurrences)
ROT = Rotational variables (37012 occurrences)
ROT: = Uncertain rotational variables (55723 occurrences)
RRAB = RR Lyrae variables (Type ab) (33165 occurrences)
RRAB: = Uncertain RR Lyrae variables (Type ab) (49 occurrences)
RRC = First overtone RR Lyrae variables (11249 occurrences)
RRD = Double mode RR Lyrae variables (597 occurrences)
RVA = RV Tauri variables (Subtype A) (152 occurrences)
SR = Semiregular variables (204932 occurrences)
L = Irregular variables (84019 occurrences)
GCAS = γ Cassiopeiae variables (2021 occurrences)
GCAS: = Uncertain γ Cassiopeiae variables (1778 occurrences)
YSO = Young stellar objects (10147 occurrences)
VAR = Generic variables (63711 occurrences)
Note (2): Reference as follows:
I = The ASAS-SN Catalog of Variable Stars: Paper I
(Jayasinghe+, 2018MNRAS.477.3145J 2018MNRAS.477.3145J -- This catalog; 65270 occurrences)
II = The ASAS-SN Catalog of Variable Stars: Paper II
(Jayasinghe+, 2019MNRAS.486.1907J 2019MNRAS.486.1907J -- This catalog; 350445 occurrences)
III = The ASAS-SN Catalog of Variable Stars: Paper III
(Jayasinghe+, 2019MNRAS.485..961J 2019MNRAS.485..961J -- This catalog; 8848 occurrences)
IV = The ASAS-SN Catalog of Variable Stars: Paper IV
(Pawlak+, 2019MNRAS.487.5932P 2019MNRAS.487.5932P -- This catalog; 1924 occurrences)
V = The ASAS-SN Catalog of Variable Stars: Paper V
(Jayasinghe+, 2020MNRAS.491...13J 2020MNRAS.491...13J -- This catalog; 122648 occurrences)
IX = The ASAS-SN Catalog of Variable Stars: Paper IX
(Jayasinghe+, 2021MNRAS.503..200J 2021MNRAS.503..200J -- This catalog; 138560 occurrences)
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History:
* csv Catalog downloaded from http://asas-sn.osu.edu/variables
on 23-oct-2020 (2020-10-23_asassn.csv is the original CSV file)
* csv Catalog downloaded from http://asas-sn.osu.edu/variables
on 10-sept-2024 (Stars2024-09-101034.csv is the original CSV file;
Database Updated: 08/10/2021 (Crossmatches to Gaia EDR3, TIC v8, and
GALEX GR6+7 AIS added) - Gaia DR2 are still problematic and are not
displayed by default in VizieR.
References:
Jayasinghe et al. Paper I. 2018MNRAS.477.3145J 2018MNRAS.477.3145J This catalog
Jayasinghe et al. Paper II. 2019MNRAS.486.1907J 2019MNRAS.486.1907J This catalog
Jayasinghe et al. Paper III. 2019MNRAS.485..961J 2019MNRAS.485..961J This catalog
Pawlak et al. Paper IV. 2019MNRAS.487.5932P 2019MNRAS.487.5932P This catalog
Jayasinghe et al. Paper V. 2020MNRAS.491...13J 2020MNRAS.491...13J This catalog
Jayasinghe et al. Paper VI. 2020MNRAS.493.4186J 2020MNRAS.493.4186J This catalog
Jayasinghe et al. Paper VII. 2020MNRAS.493.4045J 2020MNRAS.493.4045J
Bredall et al. Paper VIII. 2020MNRAS.496.3257B 2020MNRAS.496.3257B Cat. J/MNRAS/496/3257
Jayasinghe et al. Paper IX. 2021MNRAS.503..200J 2021MNRAS.503..200J This catalog
Christy et al. Paper X. 2023MNRAS.519.5271C 2023MNRAS.519.5271C
(End) Emmanuelle Perret [CDS] 23-Oct-2020