Results 31 to 40 of about 2,888,460 (154)

V 1162 Ori: A multiperiodic delta Scuti star with variable period and amplitude [PDF]

open access: yesAstronomy & Astrophysics, 2001
We present the results of multisite observations of the delta Scuti star V1162 Ori. The observations were done in the period October 1999 - May 2000, when 18 telescopes at 15 observatories were used to collect 253 light extrema during a total of 290 hours of time-series observations.
Arentoft, T   +24 more
openaire   +4 more sources

A Rapidly Evolving High-amplitude δ Scuti Star Crossing the Hertzsprung Gap

open access: yesThe Astrophysical Journal Letters, 2022
In this work, we report the discovery of the rapidly evolving high-amplitude δ Scuti star KIC 6382916 (J19480292+4146558), which is crossing the Hertzsprung gap.
Jia-Shu Niu, Hui-Fang Xue
doaj   +1 more source

Amplitude variability or close frequencies in pulsating stars -- the   Scuti star FG Vir [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
10 pages, 6 figures.
Breger, Michel, Pamiatnych, Aleksiej
openaire   +3 more sources

The NMSU 1 m Telescope at Apache Point Observatory

open access: yesAdvances in Astronomy, Volume 2010, Issue 1, 2010., 2010
We describe the New Mexico State University (NMSU) 1 m telescope located at the Apache Point Observatory (APO), and in particular, its robotic mode of operation. Some of the issues we have encountered may be of interest to others developing similar facilities.
Jon A. Holtzman   +3 more
wiley   +1 more source

T35: A Small Automatic Telescope for Long‐Term Observing Campaigns

open access: yesAdvances in Astronomy, Volume 2010, Issue 1, 2010., 2010
The T35 is a small telescope (14″) equipped with a large format CCD camera installed in the Sierra Nevada Observatory (SNO) in Southern Spain. This telescope will be a useful tool for the detecting and the studying of pulsating stars, particularly, in open clusters.
Susana Martín-Ruiz   +11 more
wiley   +1 more source

FREQUENCY ANALYSIS OF DELTA SCUTI VARIABLE STARS. II.

open access: yesOdessa Astronomical Publications, 2017
The Fourier analyses performed for photoelectric observations of two delta Scuti stars V1162 Ori and AV Cet show that these stars are multiperiodic with most significant frequencies identified as radial mode overtones and their linear combinations.
V. P. Bezdenezhnyi
doaj   +1 more source

Amplitude Variability of Delta Scuti Stars: 4 CVn [PDF]

open access: yesInternational Astronomical Union Colloquium, 2000
AbstractThe amplitude variability of δ Scuti stars is demonstrated by the behavior of the evolved δ Scuti star 4 CVn. The data on 4 CVn covering over 30 yr shows the amplitudes of almost all modes to be extremely variable with a time scales of ten years or longer.
openaire   +1 more source

The Effects of Metallicity on Convective Overshoot Behavior in Models of δ Scuti Variable Stars

open access: yesThe Astrophysical Journal, 2022
Abstract δ Scuti variables are stars which exhibit periodic changes in their luminosity through radial and nonradial pulsations. Internally, these stars have relatively small convective cores, and convective overshoot can significantly affect the size.
V. Dornan, C. C. Lovekin
openaire   +2 more sources

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

Photometry of GS UMa: a suspected delta Scuti variable [PDF]

open access: yes, 2018
We present the time series analysis of GS UMa.
Çoban, G.Ç.   +8 more
core   +1 more source

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