J/AJ/167/215 Eclipse times for V583 Lyrae (Zhang+, 2024)
Photometric and spectroscopic analysis of V583 Lyrae, an Algol with a g-mode
pulsating primary and accretion disk
Zhang H.-T, Qian S.-B, Liao W.-P, Soonthornthum B., Sarotsakulchai N.
<Astron. J., 167, 215 (2024)>
=2024AJ....167..215Z 2024AJ....167..215Z
ADC_Keywords: Stars, double and multiple; Optical
Keywords: Eclipsing binary stars ; Stellar pulsations ; Radial velocity ;
Spectroscopy
Abstract:
V583 Lyr is an extremely low-mass-ratio Algol-type binary with an
orbital period of 11.2580days. We determined an effective temperature
of Teff1=9000±350K from newly observed spectra, which might be an
underestimate due to binary mass transfer. The binary mass ratio
q=0.1±0.004 and the orbital inclination i=85.5deg are determined
based on the assumption that the secondary fills its Roche lobe and
rotates synchronously. The radial velocity curve is obtained from time
series spectra, allowing for improved estimation of stellar masses and
radii: M1=3.56±0.5M☉, R1=2.4±0.2R☉; and
M2=0.36±0.02M☉, R2=6.9±0.4R☉. The variations in the
double-peaked Hα emission indicate the formation of a stable
disk during mass transfer. V583Lyr appears to be a post-mass-reversal
system, according to the mass transfer estimated using O-C period
analysis. Its orbital period is slowly increasing, from which the rate
of mass accretion by the primary star is estimated to be
M1=3.384x10-8M☉/yr. The pulsation analysis was conducted on
the residuals of the light curve. The primary component was found to
be a g-mode pulsating star with 26 frequencies extracted lower than
9/day. The frequency groups and rotational splitting properties of the
g mode were studied in detail. This study provides compelling evidence
for an accretion disk surrounding the g-mode pulsating primary.
Description:
V583 Lyr time series photometric data from Kepler between 2009 and
2013 for long-cadence (LC, 1800s) light curves, and the short-cadence
(SC, 60s) data were observed for almost three cycles. Data are
available at MAST in both SC and LC formats. We downloaded all
available TESS and Kepler observations of V583 Lyr.
New observations from TESS were obtained in sectors 14, 40, 41, 53,
and 54. The photometric band range for TESS (600-1000nm) aims for a
photometric accuracy of 50ppm on stars.
The double-peaked Hα profile was observed by The Large Sky Area
Multi-Object Fiber Spectroscopic Telescope (LAMOST) Low-Resolution
Spectroscopic Survey (LRS) in 2017 June, and it suggests the presence
of an accretion disk. So we conducted more optical spectroscopic
observations of V583 Lyr at different eclipsing phases with Beijing
Faint Object Spectrograph and Camera (BFOSC) of Xinglong 2.16m
telescope for direct imaging and low-resolution (R∼500-2000)
spectroscopy. Five spectra were obtained from 2023 February to May in
the spectral region 387-676nm.
Objects:
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RA (2000) DE Designation(s)
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19 05 33.81 +39 20 03.7 V583 Lyr = 2MASS J19053381+3920038
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 45 300 All the eclipse times of V583 Lyrae
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See also:
VI/39 : Model Atmospheres (Kurucz, 1979)
III/218 : ELODIE archive (Prugniel+, 2001)
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
V/156 : LAMOST DR7 catalogs (Luo+, 2019)
IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)
J/AJ/106/2096 : Limb-darkening coefficients in binaries (Van Hamme 1993)
J/MNRAS/371/703 : MILES library of empirical spectra (Sanchez-Blazquez+, 2006)
J/A+A/531/A165 : MILES atmospheric parameters (Prugniel+, 2011)
J/AJ/141/83 : Kepler Mission. I. Eclipsing binaries in DR1 (Prsa+, 2011)
J/AJ/143/101 : Classification of Kepler B-star variables (McNamara+, 2012)
J/A+A/574/A17 : Period spacings in gamma Dor stars (Van Reeth+, 2015)
J/AJ/149/197 : Minima of 10 Kepler eclipsing binaries (Zasche+, 2015)
J/ApJ/829/23 : Stellar flares from Q0-Q17 Kepler LCs (Davenport, 2016)
J/A+A/630/A106 : Stellar pulsators in the eclipsing binaries (Gaulme+, 2019)
J/MNRAS/491/3586 : 611 γ Doradus stars Kepler data (Li+, 2020)
J/ApJS/268/16 : Pulsating B stars from TESS, LAMOST & Gaia DR3 (Shi+, 2023)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 11 F11.5 d BJD Barycentric Julian Date of Eclipse, BJD-2400000.0
13- 19 F7.5 d e_BJD [0.0004/0.01]? Uncertainty in BJD
21- 21 A1 --- Minima Primary (p) or Secondary (s) minima
23- 25 A3 --- Method Method (1)
27- 45 A19 --- Obs Observer/Instrument
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Note (1): Methods as follows:
ccd = CCD imaging (264 occurrences)
pg = Photographic plate (33 occurrences)
Blank if the method of observation is not clear (3 occurrences).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 11-Jun-2024