Results 1 to 10 of about 1,216 (137)

FREQUENCY ANALYSIS OF DELTA SCUTI VARIABLE STARS. I.

open access: yesOdessa 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
doaj   +4 more sources

The TAOS Project Stellar Variability I. Detection of Low-Amplitude delta Scuti Stars [PDF]

open access: yes, 2009
We analyzed data accumulated during 2005 and 2006 by the Taiwan-American Occultation Survey (TAOS) in order to detect short-period variable stars (periods of
Alcock, C.   +24 more
core   +3 more sources

Spectroscopy of a chemically peculair delta scuti-type star: 60 tau

open access: yesCumhuriyet 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
doaj   +1 more source

TESS Observations of Seven Newly Identified High-amplitude δ Scuti Stars

open access: yesThe 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
doaj   +1 more source

KIC 9845907: A δ Scuti Star with the First Overtone as the Dominant Frequency and with Many Equidistant Structures in Its Spectrum

open access: yesThe 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
doaj   +1 more source

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

Kepler observations of A-F pre-main sequence stars in Upper Scorpius: Discovery of six new $\delta$~Scuti and one $\gamma$~Doradus stars [PDF]

open access: yes, 2015
We present light curves and periodograms for 27 stars in the young Upper Scorpius association (age=$11 \pm 1$\,Myr) obtained with the Kepler spacecraft. This association is only the second stellar grouping to host several pulsating pre-main sequence (PMS)
Balona, L.   +5 more
core   +2 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

Equidistant frequency triplets in pulsating stars: The Combination Mode Hypothesis [PDF]

open access: yes, 2006
Multiplet structures are a common feature in pulsating stars, and can be the consequence of rotational splitting, mode interaction or sinusoidal amplitude variations.
Breger, M., Kolenberg, K.
core   +3 more sources

Home - About - Disclaimer - Privacy