Results 51 to 60 of about 1,216 (137)
A Need to Revise Stellar Opacities from Asteroseismology of δ Scuti Stars
The Astrophysical Journal Letters, 2023 We construct seismic models of the four double-mode radial δ Scuti stars adopting opacities from three databases: OPAL, OP, and OPLIB. The aim is to find the models that fit the observed frequencies of the two radial modes and have the effective ...
Jadwiga Daszyńska-Daszkiewicz +4 more
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Observations and a new interpretation for the Delta Scuti variable star VZ CANCRI
The Astrophysical Journal, 1984 Extensive numbers of new photoelectric data have been collected and analyzed to investigate the modal behavior of VZ Cnc. Its previously observed periods yield a period ratio of 0.80 implying pulsation in the first and second radial overtones. Of the seventeen delta Scuti stars listed by Fitch and Sziedl which have well-determined periods, it is the ...
A. N. Cox, B. J. McNamara, W. Ryan
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The Astrophysical JournalEclipsing Algol-type systems containing a δ Scuti (hereafter δ Sct) star enable precise determination of physical parameters and the investigation of stellar internal structure and evolution.
Qi-Huan Zeng +5 more
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Resonant Mode Coupling in δ Scuti Stars
The Astrophysical Journal, 2023 Delta Scuti ( δ Sct) variables are intermediate-mass stars that lie at the intersection of the main sequence and the instability strip on the Hertzsprung–Russell diagram.
Mohammed Mourabit, Nevin N. Weinberg
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Journal of the National Science Foundation of Sri Lanka, 2020 Asteroseismology is the science that deals with the oscillations in the stars with the goal of understanding the stellar structure. In this study, photometric data of Kepler mission have been used for the asteroseismic study of Delta Scuti type pulsating stars. The light curve analysis of three Delta Scuti stars observed by Kepler mission is presented.
J. Adassuriya +3 more
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MOSTsatellite photometry of stars in the M67 field: eclipsing binaries, blue stragglers and δ Scuti variables★ [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 accepted to MNRAS, 2008 August ...
Theodor Pribulla +10 more
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The Astronomical JournalKOI-1755 (KIC 5302006) was initially identified by the Kepler mission as a candidate exoplanet host but subsequently classified as a false positive due to suspected background contamination.
Haozhi Wang +8 more
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The pulsation spectrum of VX Hydrae
, 2009 We present the results of a two-year, multisite observing campaign investigating the high-amplitude delta Scuti star VX Hydrae during the 2006 and 2007 observing seasons. The final data set consists of nearly 8500 V-band observations spanning HJD 2453763.
Butterworth, N. +5 more
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Dealing With δ-Scuti Variables: Transit Light Curve Analysis of Planets Orbiting Rapidly Rotating, Seismically Active A/F Stars [PDF]
The Astronomical Journal, 2019 Abstract We measure the bulk system parameters of the seismically active, rapidly rotating δ-Scuti KOI-976 and constrain the orbit geometry of its transiting binary companion using a combined approach of asteroseismology and gravity-darkening light curve analysis. KOI-976 is a 1.62 ± 0.2 M ⊙ star with a measured v sin(i)
John P. Ahlers +2 more
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Modeling of Two Low-amplitude Radially Pulsating δ Scuti Stars: KIC 12602250 and KIC 5768203
The Astrophysical JournalIn this research, we conducted systematic photometric, spectroscopic, and theoretical modeling analyses of two δ Scuti stars—KIC 12602250 and KIC 5768203—that pulsate only in radial modes.
Shuguo Ma +19 more
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