Results 1 to 10 of about 224 (157)
Spectroscopy of a chemically peculair delta scuti-type star: 60 tau [PDF]
Cumhuriyet Science Journal, 2020 In this study, a detailed spectroscopic analysis of 60 Tau is presented. 60 Tau is a Delta Scuti-type pulsating variable and it is also a metallic-lined (Am) star.
Filiz Kahraman Aliçavuş
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FREQUENCY ANALYSIS OF DELTA SCUTI VARIABLE STARS. I.
Odessa Astronomical Publications, 2017 The Fourier analyses are performed for photoelectric observations of two δ Scuti stars V567 Oph and KU Cen. It is shown that V567 Oph is a multiperiodic star and KU Cen has one main period.
V. P. Bezdenezhnyi
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TESS Observations of Seven Newly Identified High-amplitude δ Scuti Stars
The Astrophysical Journal, 2023 We report seven newly identified high-amplitude δ Scuti (HADS) stars. Among them, two stars (TIC 30977864 and TIC 387379145) exhibit pure radial pulsation without the excitation of non-radial modes.
Chenglong Lv +5 more
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The Astrophysical Journal, 2023 In this paper, we present an analysis of the pulsating behavior of Kepler target KIC 9845907. Using the data from Kepler, we detected 85 significant frequencies, including the first overtone f _1 = 17.597 day ^−1 as the dominant frequency, the non-radial
Xiao-Ya Sun +3 more
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A Rapidly Evolving High-amplitude δ Scuti Star Crossing the Hertzsprung Gap
The 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
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The NMSU 1 m Telescope at Apache Point Observatory
Advances 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
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T35: A Small Automatic Telescope for Long‐Term Observing Campaigns
Advances 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
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FREQUENCY ANALYSIS OF DELTA SCUTI VARIABLE STARS. II.
Odessa 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
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TESS Observations of the Pleiades Cluster: A Nursery for δ Scuti Stars
The Astrophysical Journal Letters, 2023 We studied 89 A- and F-type members of the Pleiades open cluster, including five escaped members. We measured projected rotational velocities ( $v\sin i$ ) for 49 stars and confirmed that stellar rotation causes a broadening of the main sequence in the ...
Timothy R. Bedding +10 more
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The Astrophysical Journal, 2023 A star’s rotation rate is difficult to estimate without surface inhomogeneities such as dark or bright spots. This paper presents asteroseismic results to determine the rotation rates of δ Sct-type pulsating primary stars in two eclipsing binary systems,
Seung-Lee Kim
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