On the Nature of the Core of α Centauri A: The Impact of the Metallicity Mixture
Frontiers in Astronomy and Space Sciences, 2019 Forward asteroseismic modeling plays an important role toward a complete understanding of the physics taking place in deep stellar interiors. With a dynamical mass in the range over which models develop convective cores while in the main sequence, the ...
Benard Nsamba +9 more
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The fundamental parameters of the roAp starγ Equulei [PDF]
Astronomy & Astrophysics, 2011 Physical processes working in the stellar interiors as well as the evolution of stars depend on some fundamental stellar properties, such as mass, radius, luminosity, and chemical abundances. A classical way to test stellar interior models is to compare the predicted and observed location of a star on theoretical evolutionary tracks in a H-R diagram ...
Perraut, K. +20 more
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AN EMPIRICAL CALIBRATION TO ESTIMATE COOL DWARF FUNDAMENTAL PARAMETERS FROM H-BAND SPECTRA [PDF]
, 2014 Interferometric radius measurements provide a direct probe of the fundamental parameters of M dwarfs. However, interferometry is within reach for only a limited sample of nearby, bright stars.
E. Newton +3 more
semanticscholar +1 more source
Fundamental Parameters and Models of Stellar Atmospheres [PDF]
Symposium - International Astronomical Union, 1985 The use of photometric and spectroscopic criteria, calibrated by model-atmosphere calculations, for determining effective temperatures, surface gravities and chemical compositions of stars is illustrated and commented on. The accuracy that can be obtained today in such calibrations is discussed, as well as possible ways of improving this accuracy ...
Bengt Gustafsson, Uffe Graae-Jørgensen
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The First Photometric Study of NSVS 1461538: A New W-subtype Contact Binary with a Low Mass Ratio and Moderate Fill-out Factor [PDF]
Journal of Astronomy and Space Sciences, 2016 New multiband BVRI light curves of NSVS 1461538 were obtained as a byproduct during the photometric observations of our program star PV Cas for three years from 2011 to 2013.
Hyoun-Woo Kim +4 more
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Effects of chronic browsing on life‐history traits of an irruptive large herbivore population
Population Ecology, EarlyView.This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji +9 more
wiley +1 more source
Inversion of stellar fundamental parameters from ESPaDOnS and Narval high-resolution spectra [PDF]
, 2014 The general context of this study is the inversion of stellar fundamental parameters from high-resolution Echelle spectra. We aim at developing a fast and reliable tool for the post-processing of spectra produced by ESPaDOnS and Narval ...
F. Paletou +7 more
semanticscholar +1 more source
Multiwavelength SED as a Tool in Understanding Outbursts of Symbiotic Binaries
Open Astronomy, 2012 Symbiotic binaries consist of a few sources of radiation contributing to spectral energy distribution (SED) from hard X-rays to radio wavelengths.
Skopal A.
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The First Comprehensive Photometric Study of the Neglected Binary System V345 Cassiopeiae [PDF]
Journal of Astronomy and Space Sciences, 2013 We present the first BVRI CCD photometric observations of V345 Cas made on 22 nights during the observing seasons in 2007-2008. Our light curves, resembling those of EB-type binary stars, are analyzed with the 2003 version of the Wilson- Devinney ...
Min-Ji Jeong, Chun-Hwey Kim
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Fundamental parameters from precision tests [PDF]
Journal of Physics G: Nuclear and Particle Physics, 2002 9 pages, 4 figures, Talk presented at the Symposium in Honor of Alberto Sirlin, NYU, NY, October ...
openaire +4 more sources