J/ApJS/259/50 EA-type eclipsing binaries observed by TESS (Shi+, 2022)
New pulsating stars detected in EA-type eclipsing-binary systems based on
TESS data.
Shi X.-D., Qian S.-B., Li L.-J.
<Astrophys. J. Suppl. Ser., 259, 50 (2022)>
=2022ApJS..259...50S 2022ApJS..259...50S
ADC_Keywords: Binaries, eclipsing; Photometry; Optical
Keywords: Eclipsing binary stars ; Pulsating variable stars
Abstract:
Pulsating stars in eclipsing binaries are very important for
understanding the structure of stellar interiors through
asteroseismology because their absolute parameters such as their
masses and radii can be determined with high precision based on
photometric and spectroscopic data. The high-precision and continuous
time-series photometric data of the Transiting Exoplanet Survey
Satellite (TESS) provides an unprecedented opportunity to search for
and study these kinds of variable stars in the whole sky. About
1626 Algol-type (EA-type) eclipsing-binary systems were observed by
TESS in the 1-45 sectors with 2 minutes short cadence. By analyzing
these TESS data, we found 57 new pulsating stars in EA-type binary
stars. The preliminary results show that these binary systems have
orbital periods in the range from 0.4 to 27 days, while the periods of
pulsating components are in the range from 0.02 to 5 days. It is
detected that 43 targets follow the correlation between the pulsation
and orbital periods of Algol-type oscillating eclipsing binaries (oEA
stars), which may indicate that they are typical oEA stars. The other
14 targets may be other types of variable stars in eclipsing-binary
systems. These objects are a very interesting source to investigate
binary structures and evolution as well as to understand the
influences of tidal forces and mass transfer on stellar pulsations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 122 1626 *The catalog of EA-type eclipsing binaries
observed by TESS
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Note on table1.dat: Photometry and orbital parameters taken from the VSX
catalog (see B/vsx).
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See also:
B/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
J/MNRAS/370/2013 : Catalogue of close binaries (Soydugan+, 2006)
J/A+A/552/A60 : CoRoT 102918586 light curve and spectra (Maceroni+, 2013)
J/ApJ/833/170 : Spots param. for LCs of the EB star KIC 6048106 (Lee, 2016)
J/A+A/630/A106 : Stellar pulsators in the eclipsing binaries (Gaulme+, 2019)
J/AJ/161/46 : (O-C) curve of the binary system KIC 06852488 (Shi+, 2021)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [TIC]
4- 13 I10 --- TIC TESS Input Catalog identifier
15 I1 --- f_TIC ? Flag on TIC (1)
17- 46 A30 --- Name Common identifier
48- 49 I2 h RAh Hour of Right Ascension (J2000)
51- 52 I2 min RAm Minute of Right Ascension (J2000)
54- 58 F5.2 s RAs Second of Right Ascension (J2000)
60 A1 --- DE- Sign of the Declination (J2000)
61- 62 I2 deg DEd Degree of Declination (J2000)
64- 65 I2 arcmin DEm Arcminute of Declination (J2000)
67- 70 F4.1 arcsec DEs Arcsecond of Declination (J2000)
72- 74 A3 --- Cons Constellation
76- 88 F13.9 d Per [0.06/324]? Orbital period
89 A1 --- u_Per Uncertainty flag on Per
91- 96 F6.3 mag mag1 [1.95/17.4] Brightest magnitude or
mean magnitude in Filter; see "n_mag" column
98-103 F6.3 mag mag2 [0/16.57]? Faintest magnitude or uncertainty
in Filter; see "n_mag" column
105-106 A2 --- n_mag Magnitude note (2)
108 A1 --- l_mag [<:] Limit or uncertainty flag on mag
110-116 A7 --- Filter Filter(s) the magnitudes are obtained in
118-122 F5.3 arcsec Sep [0.001/4.91] Distance between TESS and
VSX positions
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Note (1): Flag on TIC as follows:
2 = source also in Table 2: 43 new pulsating stars in EA-type eclipsing
binaries following the Ppul-Porb relation of oscillating eclipsing
binary of the Algol type (oEA) stars
3 = source also in Table 3: 14 new pulsating stars in EA-type eclipsing
binaries not following the Ppul-Porb relation of oEA stars
Note (2): Code as follows:
pm = mag1 is the mean magnitude and mag2 is the uncertainty.
mm = mag1 is the brighter end of the magnitude range while mag2
is the fainter end of the magnitude range.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 28-Jun-2022