Results 71 to 80 of about 2,888,460 (154)
The TAOS Project Stellar Variability I. Detection of Low-Amplitude delta Scuti Stars
, 2009 Accepted for publication in ...
Kim, D. -W. +24 more
openaire +2 more sources
The Astronomical JournalWe develop an ensemble machine learning framework to estimate key asteroseismic parameters—namely the frequency of the highest peak ( ν ( A _max )), the frequency of maximum oscillation power ( ν _max ), and the large frequency separation (Δ ν )—directly
Akram Bolouki +2 more
doaj +1 more source
, 2008 : Within the context of a fractal paradigm that emphasizes nature’s well-stratified hierarchical organization, the δ Scuti class of variable stars is investigated for evidence of discrete cosmological self-similarity.
Robert L. Oldershaw
core
Asteroseismology of delta Scuti Stars: Problems and Prospects [PDF]
, 2005 peer reviewedWe briefly outline the state-of-the-art seismology of delta Scuti stars from a theoretical point of view: why is it so difficult a task?
Boehm, T. +12 more
core +1 more source
, 2002 We present high‐resolution spectroscopy and precision photometry of five new, relatively bright δ Scuti stars. They were originally chosen as photometric comparison stars in our program of automated, high‐precision photometry of solar‐type stars and ...
Henry, Gregory W., Fekel, Francis C.
core +1 more source
The δ Scuti Pulsator Occurrence as a Function of Age, Teff, Rotation, and Metallicity
The Astrophysical JournalMany A- and F-type stars do not display δ Scuti pulsations, despite being located within the instability strip. We use photometry from the TESS Mission to discover and study δ Scuti pulsators in open clusters within 500 pc and with ages between 20 and ...
Ian Berry +5 more
doaj +1 more source
The Identification of RR Lyrae and Delta Scuti Stars from Variable GALEX Ultraviolet Sources
, 2014 We identify the RR Lyrae and delta Scuti (DSCT) stars in three catalogs of GALEX variable sources. The NUV amplitude of RR Lyrae stars is about twice that in V-band, so we find a larger percentage of low amplitude variables than catalogs such as Abbas et al (2014).
Kinman, T. D., Brown, Warren R.
openaire +2 more sources
Period–Luminosity Relations for Double-mode δ Sct Stars
The Astrophysical JournalPrevious studies of the period–luminosity relations (PLRs) of Delta Scuti ( δ Sct) stars have focused on those with a single pulsation mode. However, for δ Sct stars with many different pulsation modes, classifying a single mode is difficult.
Qi Jia +5 more
doaj +1 more source
The Astrophysical Journalδ Scuti stars in binary or multiple systems serve as crucial probes for studying stellar pulsation and evolution. However, many such systems are not ideal for asteroseismology due to uncertainties in mass transfer with close companions and the challenges
Ping Li +6 more
doaj +1 more source