Results 31 to 40 of about 224 (157)

Four New δ Scuti Pulsators from a Variability Survey of 131 Stars [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2002
To appear in the June 2002 issue of PASP, 9 pages, 6 ...
Sokoloski, J. L.   +3 more
openaire   +2 more sources

A study of the stellar photosphere-hydrogen ionization front interaction in $\delta$ Scuti stars [PDF]

open access: yes, 2023
Pulsating variable $\delta$ Scuti stars are intermediate-mass stars with masses in the range of $1-3$ $M_{\odot}$ and spectral types between $A2$ and $F2$.
Deb, Sukanta   +3 more
core   +1 more source

Observations and a new interpretation for the Delta Scuti variable star VZ CANCRI

open access: yesThe 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
openaire   +1 more source

Close frequency pairs in Delta Scuti stars [PDF]

open access: yes, 2002
The majority of the well-studied δ Scuti stars shows frequency pairs in the power spectra with frequency separations less than 0.06 cd-1 ($0.7~\mu$Hz) as well as amplitude variability.
M. Breger, K. M. Bischof
core   +1 more source

Physical Characteristics and Classification of the Large Amplitude Variable Star V1719 Cygni [PDF]

open access: yes, 2022
Pulsating stars are used as standard candles which are helpful in determining distances to stellar objects along with the relationship between their period and apparent luminosity.
Siems, Logan   +3 more
core   +2 more sources

Non-linear terms in delta Scuti stars power spectra [PDF]

open access: yes, 2021
Los modelos de pulsación estelar disponibles hasta la fecha no explican en su totalidad los espectros de potencias observados para las estrellas del tipo Scuti.
Lares Martiz, Mariel   +1 more
core   +1 more source

A CCD Search for Variable Stars in the Open Cluster NGC 6611 [PDF]

open access: yes, 2023
We present the results of the $UBVI_C$ variability survey in the young open cluster NGC 6611 based on observations obtained during 34 nights spanning one year. In total, we found 95 variable stars.
Michalska, G.   +6 more
core   +2 more sources

Asteroseismology Applied to Constrain Structure Parameters of δ Scuti Stars

open access: yesThe Astrophysical Journal
Asteroseismology is a powerful tool to probe stellar structure. Spaceborne instruments like CoRoT, Kepler, and TESS have observed the oscillations of numerous stars, among which δ Scutis are particularly interesting, owing to their fast rotation and ...
Subrata Kumar Panda   +4 more
doaj   +1 more source

A Systematic Search for New δ Scuti and γ Doradus Stars Using TESS Data [PDF]

open access: yes
Focusing on the discovery of new δ Scuti and γ Doradus stars, we analyzed the Transiting Exoplanet Survey Satellite (TESS) light curves for 193,940 A-F stars selected from four legacy catalogs—the Henry Draper Catalogue (HD), the ...
Ai-Ying Zhou
core   +1 more source

Quadratic Frequency Dispersion in the Oscillations of Intermediate-mass Stars

open access: yesThe Astrophysical Journal Letters
Asteroseismology, the study of stellar vibration, has met with great success, shedding light on stellar interior structure, rotation, and magnetism. Prominently known as δ Scutis, the intermediate-mass main-sequence oscillators that often exhibit rapid ...
Subrata Kumar Panda   +3 more
doaj   +1 more source

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