Results 41 to 50 of about 1,014 (294)
On the pulsation parallax of the variable star RR Lyr [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 3 pages, accepted for publication in the pink pages of ...
Bono, G. +4 more
openaire +2 more sources
RR Lyrae Stars and Anomalous Cepheids as Population Tracers in Local Group Galaxies
Universe, 2022 We discuss the use and importance of pulsating variable stars as population tracers in Local Group galaxies. Among bright variable crossing the classical instability strip, we mostly focus on RR Lyrae stars and Anomalous Cepheids.
Matteo Monelli, Giuliana Fiorentino
doaj +1 more source
TIC 5724661: A Long-Period Binary with a Pulsating sdB Star and $\delta$ Scuti Variable [PDF]
, 2022 Using TESS 20-sec cadence data, we have discovered an unusual combination of pulsating stars in what we infer to be a binary system. The binary consists of a standard $\delta$ Scuti star with pulsations over the range 32-41 d$^{-1}$; this is in a likely ...
Bieryla, Allyson +12 more
core +2 more sources
Pulsating stars in NGC 6231: Frequency analysis and photometric mode identification near the main-sequence [PDF]
, 2015 Aims. We used Johnson UBV photometric CCD observations to identify pulsating and other variable stars in the young open cluster NGC 6231. The multi-colour information was used to classify pulsating variables, perform frequency analysis, and, where ...
Shobbrook, R, Handler, G, Meingast, S
core +1 more source
FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source
”ASYMPTOTIC PARABOLA” FITS FOR SMOOTHING GENERALLY ASYMMETRIC LIGHT CURVES
Odessa Astronomical Publications, 2016 A computer program is introduced, which allows to determine statistically optimal approximation using the "Asymptotic Parabola" fit, or, in other words, the spline consisting of polynomials of order 1,2,1, or two lines ("asymptotes") connected with a ...
K. D. Andrych +3 more
doaj +1 more source
Radial Pulsation in Variable Stars with Mass Loss [PDF]
International Astronomical Union Colloquium, 1993 AbstractIt is possible to show that cool giants with very large photospheric scale heights do not perfectly reflect pulsational waves at the photosphere. This means that for these stars the classical formulation of pulsation in which the outer boundary for the resonance cavity is assumed to be perfectly reflecting is not valid.
openaire +1 more source
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
Nature of blue large amplitude pulsating stars [PDF]
, 2022 Bu tezde yeni bir değişen yıldız sınıfı olan büyük genlikli mavi zonklayan yıldızların ışık değişimleri incelenmiştir. Bu yıldızların zonklama dönemleri, genlikleri ve yıldan yıla ışık değişimleri belirlenerek evrim durumları tartışılmıştır.
Yalın, Mihrap
core
WAVELET ANALYSIS OF 173 SEMI-REGULAR VARIABLES
Odessa Astronomical Publications, 2010 We made the wavelet analysis of 173 semi-regular pulsating variable stars of different sub-types. For the analysis, we have used 1,000,000 individual brightness estimates from the published international databases of the VSOLJ (Japan) and AFOEV (France).
L. L. Chinarova
doaj +1 more source