J/MNRAS/484/2514 Eclipsing binary search in QUEST (Cuevas-Otahola+, 2019)
Eclipsing binary search in the QUEST low-latitude catalogue and the ELLISA
light-curve simulator.
Cuevas-Otahola B., Mateu C., Hernandez-Perez F., Downes J.J., Vivas A.K.,
Briceno C.
<Mon. Not. R. Astron. Soc., 484, 2514-2529 (2019)>
=2019MNRAS.484.2514C 2019MNRAS.484.2514C (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Surveys
Keywords: methods: numerical - catalogues - binaries: eclipsing
Abstract:
The realistic simulation of variable star populations is fundamental
to determine the selection function and contamination in existing and
upcoming multi-epoch surveys. We present ELLISA, a simulator that
produces an ensemble of mock light curves for a population of
eclipsing binaries obtained from physical and orbital parameters
consistent with different Galactic populations, and which considers
user-supplied time sampling and photometric errors to represent any
given survey. We carried out a search for eclipsing binaries in the
QUEST low Galactic latitude catalogue of variable stars, spanning an
area of 476deg2 at -25°~<b~<30° and 190°=<l=<230°
towards the Galactic anticentre, and use ELLISA to characterize the
completeness of the resulting catalogue in terms of amplitudes and
periods of variation as well as eclipsing binary type. The resulting
catalogue consists of 1125 eclipsing binaries, out of which 179, 60,
and 886 are EA, EB, and EW types, respectively. We estimate, on
average, 30 per cent completeness in the period range 0.25~<P/d~<1 for
EB+EW binaries and 15 per cent completeness for EA binaries with
periods 2~<P/d~<10, being the time sampling the primary factor
determining the completeness of each type of eclipsing binary. This is
one of few eclipsing binary catalogues reported with an estimate of
the selection function. Mock eclipsing binary light-curve libraries
produced with ellisa can be used to estimate the selection function
and optimize eclipsing binary searches in upcoming multi-epoch surveys
such as Gaia, the Panoramic Survey Telescope and Rapid Response
System, the Zwicky Transient Factory, or the Large Synoptic Survey
Telescope.
Description:
In this work, we make use of the QUEST variability survey at low
Galactic latitude from Mateu et al. (2012MNRAS.427.3374M 2012MNRAS.427.3374M, Cat.
J/MNRAS/427/3374). This catalogue spans a total area of 476deg2 with
6513705 point sources and consists of multi-epoch observations in the
VRI filters obtained fully with the Jurgen Stock Schmidt telescope and
the QUEST-I camera (Baltay et al. 2002PASP..114..780B 2002PASP..114..780B) at the National
Astronomical Observatory in Llano del Hato, Merida, Venezuela. The
observations correspond to a low Galactic latitude zone in the range
-25°~<b~<30° approximately in direction towards the Galactic
anticentre 190°=<l=<230°. The time sampling of the survey is
quite inhomogeneous as it comprises observations from many different
projects with different scientific goals, and spans observations
obtained between 1998 November and 2006 June.
To characterize the completeness of the variable stars identification,
we use ellisa to generate a mock catalogue to mimic the time sampling
and photometric errors of the QUEST survey.
The goal of the ELLISA simulator is to generate a library of synthetic
multifilter light curves for a population of eclipsing binaries,
reproducing the time sampling and photometric errors representative of
the survey the user wants to simulate. This makes it possible to
generate a synthetic library that mimics the way we would observe a
population of eclipsing binaries with an arbitrary instrument and time
sampling. ELLISA is made publicly available as a python stand-alone
code and library at a GitHub repository
(https://github.com/umbramortem/ELLISA).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 96 1125 Basic information and light-curve parameters of
the eclipsing binaries identified
table4.dat 78 12 QUEST matches with the GCVS catalogue
table5.dat 74 384 QUEST matches with the CRTS catalogue
table6.dat 53 22 QUEST matches with the PTF catalogue
table7.dat 51 18 QUEST matches with the TTS catalogue
--------------------------------------------------------------------------------
See also:
J/MNRAS/427/3374 : QUEST RR Lyrae Survey III. Low Galactic latitude
(Mateu+, 2012)
B/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)
J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014)
J/AJ/142/60 : Palomar Transient Factory Orion Project (Van Eyken+, 2011)
J/AJ/152/198 : Periods of 4-10 Myr old T Tauri members of Orion OB1
(Karim+, 2016)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- IDquest QUEST object identification number
10- 21 F12.8 deg RAdeg Right ascension (J2000)
23- 33 F11.8 deg DEdeg Declination (J2000)
35- 40 F6.3 mag Vmag ? V-band magnitude
42- 44 I3 --- o_Vmag Number of observations on the V-band
46- 51 F6.3 mag Rmag ? R-band magnitude
53- 54 I2 --- o_Rmag Number of observations on the R-band
56- 61 F6.3 mag Imag ? I-band magnitude
63- 65 I3 --- o_Imag Number of observations on the I-band
67- 71 F5.3 mag AmpV ? Amplitude of variation in the V-band
73- 77 F5.3 mag AmpR ? Amplitude of variation in the R-band
79- 83 F5.3 mag AmpI ? Amplitude of variation in the I-band
85- 93 F9.6 d Period Light-curve period
95- 96 A2 --- Type Type of eclipsing binary
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- IDquest QUEST object identification number
10- 18 F9.6 d Pquest Light-curve period from QUEST
20- 24 F5.3 mag AmpIquest Amplitude of variation in the I-band from
QUEST
26- 27 A2 --- Typequest Type of eclipsing binary from QUEST
29- 37 A9 --- IDgcvs GCVS object identification number (1)
39- 46 F8.6 d Pgcvs ? Light-curve period from GCVS (1)
48- 57 F10.8 mag AmpIgcvs ? Amplitude of variation in the I-band from
GCVS (1)
59- 63 A5 --- Typegcvs Object type from the GCVS catalogue (1)
65- 78 A14 --- Comments Aliases or spurious periods present in the
mock catalogue of eclipsing binaries
--------------------------------------------------------------------------------
Note (1): Values from the GCVS catalogue (Samus et al. 2017ARep...61...80S 2017ARep...61...80S,
Cat. B/gcvs)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- IDquest QUEST object identification number
10- 18 F9.6 d Pquest Light-curve period from QUEST
20- 24 F5.3 mag AmpVquest ? Amplitude of variation in the I-band from
QUEST
26- 27 A2 --- Typequest Type of eclipsing binary from QUEST
29- 44 A16 --- IDcrts CRTS object identification number (1)
46- 54 F9.7 d Pcrts ? Light-curve period from CRTS (1)
56- 59 F4.2 mag AmpVcrts ? Amplitude of variation in the V-band from
CRTS (1)
61- 66 A6 --- Typecrts Object type from the CRTS catalogue
68- 74 A7 --- Comments Aliases or spurious periods present in the
mock catalogue of eclipsing binaries
--------------------------------------------------------------------------------
Note (1): Values from the CRTS catalogue (Drake et al. 2014ApJS..213....9D 2014ApJS..213....9D,
Cat. J/ApJS/213/9)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- IDquest QUEST object identification number
10- 17 F8.6 d Pquest Light-curve period from QUEST
19- 20 A2 --- Typequest Type of eclipsing binary from QUEST
22- 28 A7 --- IDptf PTF object identification number (1)
30- 37 F8.6 d Pptf Light-curve period from PTF (1)
39 A1 --- Typeptf [CD] Object type from the PTF catalogue (2)
41- 53 A13 --- Comments Aliases or spurious periods present in the
mock catalogue of eclipsing binaries
--------------------------------------------------------------------------------
Note (1): Values from the PTF catalogue (van Eyken et al. 2011AJ....142...60V 2011AJ....142...60V,
Cat. J/AJ/142/60)
Note (2): Type as follows:
C = Close systems, which corresponds to EW+EB systems in our classification
(16 systems)
D = Detached, which corresponds to our EA systems (5 systems) and 1 system
classified in this work as EW and classified as EA system in the PTF
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table7.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- IDquest QUEST object identification number
10- 18 F9.6 d Pquest Light-curve period from QUEST
20- 21 A2 --- Typequest Type of eclipsing binary from QUEST
23- 26 I4 --- IDtts TTS object identification number (1)
28- 32 F5.2 d Ptts Light-curve period from TTS (1)
34- 37 A4 --- Typetts Type of eclipsing binary from TTS (2)
39- 51 A13 --- Comments Aliases or spurious periods present in the
mock catalogue of eclipsing binaries
--------------------------------------------------------------------------------
Note (1): Values from the TTS catalogue (Karim et al. 2016AJ....152..198K 2016AJ....152..198K,
Cat. J/AJ/152/198)
Note (2): Type as follows:
CTTS = Classical T Tauri star (2 stars)
WTTS = Weak-lined T Tauri star (16 stars)
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Ana Fiallos [CDS] 17-Aug-2022