J/ApJS/238/4 Updated cat. of Algol-type binaries from CSSs (Papageorgiou+, 2018)
An updated catalog of 4680 northern eclipsing binaries with Algol-type
light-curve morphology in the Catalina Sky Surveys.
Papageorgiou A., Catelan M., Christopoulou P.-E., Drake A.J.,
Djorgovski S.G.
<Astrophys. J. Suppl. Ser., 238, 4 (2018)>
=2018ApJS..238....4P 2018ApJS..238....4P
ADC_Keywords: Binaries, eclipsing; Photometry, UBV; Surveys; Stars, variable
Keywords: binaries: eclipsing ; catalogs ; methods: data analysis ; surveys
Abstract:
We present an updated catalog of 4680 northern eclipsing binaries
(EBs) with Algol-type light-curve (LC) morphology (i.e., with
well-defined beginnings and ends of primary and secondary eclipses),
using data from the Catalina Sky Surveys. Our work includes revised
period determinations, phenomenological parameters of the LCs, and
system morphology classifications based on machine-learning
techniques. While most of the new periods are in excellent agreement
with those provided in the original Catalina catalogs, improved values
are now available for ∼10% of the stars. A total of 3456 EBs were
classified as detached and 449 were classified as semi-detached, while
145 could not be classified unambiguously into either subtype. The
majority of the SD systems seem to be comprised of short-period
Algols. By applying color criteria, we searched for K- and M-type
dwarfs in these data, and present a subsample of 609 EB candidates for
further investigation. We report 119 EBs (2.5% of the total sample)
that show maximum quadrature light variations over long timescales,
with periods bracketing the range 4.5-18 years and a fractional
luminosity variance range of 0.04-0.13. We discuss possible causes for
this, making use of models of variable starspot activity in our
interpretation of the results.
Description:
Observations were carried out during 2004-2016 using the three
telescopes of the Catalina Sky Surveys (CSSs) of Drake+
(2009, J/ApJ/696/870), covering the sky declination range
δ=[-75,+65]deg, but avoiding crowded stellar regions within
10°-15° of the Galactic plane. Time-series photometry for ∼200
million variable sources has been accumulated through CSS. In order to
maximize the throughput, the observations are taken unfiltered, and
the magnitudes are transformed to an approximate V magnitude.
In this study, we use Catalina Surveys Data Release 2 (CSDR2) with
additional, not publicly accessible data, spanning 12yrs (2004-2016).
We focus on the sample of Drake+ (2014, J/ApJS/213/9) of 4683 eclipsing
binaries originally classified as EA type on the basis of 8yrs of data.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 103 4680 Catalina Real-time Transient Survey (CRTS)
eclipsing Algol-type (EA) systems
table2.dat 93 4680 Phenomenological parameters of 4680 eclipsing
binaries (EBs)
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
V/139 : The SDSS Photometric Catalog, Release 9 (Adelman- McCarthy+, 2012)
V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
J/AJ/115/193 : RR Lyrae V light curves (Layden, 1998)
J/ApJ/628/411 : Identification & analysis of EBs (Devor+, 2005)
J/A+A/453/635 : Modelling Galactic Interstellar Extinction (Marshall+, 2006)
J/A+A/467/785 : SuperWASP/ROSAT periodic variable stars (Norton+, 2007)
J/MNRAS/384/1178 : 2MASS, SDSS and BVRI photometry for 825 stars (Bilir+, 2008)
J/ApJ/696/870 : Catalina Real-time Transient Survey (CRTS) (Drake+, 2009)
J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)
J/MNRAS/406/2559 : BVRI light curves of GSC2314-0530 (Dimitrov+, 2010)
J/AJ/141/166 : HATNet variability survey of K and M dwarfs (Hartman+, 2011)
J/AJ/142/138 : All-sky catalog of bright M dwarfs (Lepine+, 2011)
J/AN/334/860 : Eclipsing variables catalogue. Version 2 (Avvakumova+, 2013)
J/ApJ/763/32 : Galactic halo RRab stars from CSS (Drake+, 2013)
J/AJ/146/101 : LINEAR. III. Periodic variables (Palaversa+, 2013)
J/ApJS/208/9 : Intrinsic colors & temperatures of PMS stars (Pecaut+, 2013)
J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014)
J/MNRAS/454/2946 : CSS detached eclipsing binaries (Lee, 2015)
J/AJ/150/42 : Catalog of 2612 M dwarfs from LAMOST (Zhong+, 2015)
J/MNRAS/451/2263 : Differential photometry of the EB* HATS551-027 (Zhou+, 2015)
J/A+A/588/A38 : Light curves of spotted solar-type stars (Lehtinen+, 2016)
J/MNRAS/469/3688 : CSS Periodic Variable Star Catalogue (Drake+, 2017)
J/A+A/606/A92 : Gaia LMC eclipsing binary & mult. systems (Mowlavi+, 2017)
http://catalinadata.org/ : Catalina Sky Survey home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [CSS_]
5- 20 A16 --- CRTS Source identifier (JHHMMSS.s+DDMMSS)
22- 34 I13 --- ID [1001005035721/1163019067238] Internal identifier
36- 37 I2 h RAh [0/23] Hour of Right Ascension (J2000)
39- 40 I2 min RAm Minute of Right Ascension (J2000)
42- 46 F5.2 s RAs Second of Right Ascension (J2000)
48 A1 --- DE- Sign of the Declination (J2000)
49- 50 I2 deg DEd Degree of Declination (J2000)
52- 53 I2 arcmin DEm Arcminute of Declination (J2000)
55- 58 F4.1 arcsec DEs Arcsecond of Declination (J2000)
60- 70 F11.5 d MJD [53464.3/56596.5] Modified Julian Date
at primary minimum
72- 82 F11.7 d Per [0.2/652.4] Period
84- 89 F6.4 mag errVavg [0.01/0.4] Mean V band photometric error
91- 94 I4 --- Npts [106/1178] Number of points used
96- 99 A4 --- Class Classification (1)
101 A1 --- LMcan Low mass candidate? (+ = yes)
103 A1 --- LTerm Long-term variations in maximum light? (+ = yes)
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Note (1): On the basis of light-curve (LC) morphology, EA-type eclipsing
systems, with clearly defined eclipses on their LCs, include both
detached, "D" (3456 occurrences), and semi-detached, "SD" (449 occurrences),
systems. See section 3.2 for further explanations.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [CSS_]
5- 20 A16 --- CRTS Source identifier (JHHMMSS.s+DDMMSS)
22- 27 F6.4 mag Amp [0.07/2.6] Amplitude
29- 34 F6.4 mag e_Amp [0.003/0.7] Uncertainty in Amp
36- 42 F7.4 mag MinI [11.6/20.2] Magnitude at primary eclipse
44- 49 F6.4 mag e_MinI [0.002/0.7] Uncertainty in MinI
51- 57 F7.4 mag MinII [10.8/19.9] Magnitude at secondary eclipse
59- 64 F6.4 mag e_MinII [0.001/0.8] Uncertainty in MinII
66- 72 F7.4 mag MaxI [10.7/19.4] Magnitude at maximum light
out of eclipse
74- 79 F6.4 mag e_MaxI [0.0007/0.2] Uncertainty in MaxI
81- 86 F6.4 mag MinI-MinII [0/2.4] Difference between eclipse depths
88- 93 F6.4 mag e_MinI-MinII [0.004/0.8] Uncertainty in MinI-MinII
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 22-Oct-2018