Results 11 to 20 of about 166,438,504 (289)
Fundamental parameters of He-weak and He-strong stars [PDF]
Astronomy and Astrophysics, 2007 We carried out low resolution spectroscopic observations in the wavelength range 3400-4700 A of 20 He-weak and 8 He-strong stars to determine their fundamental parameters by means of the Divan-Chalonge-Barbier (BCD) spectrophotometric system. For a few He-weak stars we also estimate the effective temperatures and the angular diameters by integrating ...
Yves Frémat, Lydia Cidale, M L Arias
exaly +8 more sources
Fundamental stellar parameters of benchmark stars from CHARA interferometry [PDF]
Astronomy & Astrophysics, 2022 Context. Stellar models applied to large stellar surveys of the Milky Way need to be properly tested against a sample of stars with highly reliable fundamental stellar parameters. We have established a programme aiming to deliver such a sample of stars. Aims.
Karovicova, I. +5 more
core +8 more sources
Fundamental parameters of massive stars [PDF]
EAS Publications Series, 2004 21 pages, 3 figures, to appear in "Massive Stars: Formation, Evolution and Environment", eds. Heydari-Malayeri & Zahn (proceedings of 2002 Aussois summer school)
P. A. Crowther
openaire +3 more sources
Fundamental parameters and infrared excesses of Tycho–Gaia stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 43 pages, 50 figures, accepted ...
Albert Zijlstra +2 more
exaly +5 more sources
B stars in open clusters: fundamental parameters [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractWe use the BCD spectrophotometric classification system to derive fundamental parameters of B stars in NGC 2439, NGC 3766 and NGC 6087. We are able to perform a complete study of each open cluster by deriving spectral classification of its members, distance modulus and age as well.
Aidelman, Yael Judith +3 more
openaire +3 more sources
Fundamental parameters of “normal” B stars in the solar neighborhood [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractUnderstanding phenomena of activity in stars, like pulsations or magnetism, benefits from systematic comparisons of some key physical parameters of active with those of “normal” stars. Here we concentrate on a careful derivation of fundamental parameters of a well selected sample of 27 “normal” B stars in nearby OB associations and in the field.
Nieva, M., Przybilla, N.
openaire +3 more sources
Fundamental stellar parameters of benchmark stars from CHARA interferometry [PDF]
Astronomy & Astrophysics, 2020 Context.Benchmark stars are crucial as validating standards for current as well as future large stellar surveys of the Milky Way. However, the number of suitable metal-poor benchmark stars is currently limited, owing to the difficulty in determining reliable effective temperatures (Teff) in this regime.Aims.We aim to construct a new set of metal-poor ...
I. Karovicova +6 more
openaire +3 more sources
Fundamental parameters of Be stars located in the seismology fields of COROT [PDF]
Astronomy and Astrophysics, 2006 25 pages, 9 figures, Accepted for publication in A& ...
M Floquet, A -M Hubert, J Zorec
exaly +6 more sources
Fundamental parameters of eight Am stars: comparing observations with theory★ [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 In this paper we present a detailed analysis of a sample of eight Am stars, four of them are in the Kepler field of view. We derive fundamental parameters for all observed stars, effective temperature, gravity, rotational and radial velocities, and chemical abundances by spectral synthesis method.
Giovanni Catanzaro
exaly +2 more sources
Fundamental parameters and infrared excesses of Hipparcos stars
Royal Astronomical Society. Monthly Notices, 2012 We derive the fundamental parameters (temperature and luminosity) of 107 619 Hipparcos stars and place these stars on a true Hertzsprung-Russell diagram. This is achieved by comparing BT-Settl model atmospheres to spectral energy distributions (SEDs) created from Hipparcos, Tycho, SDSS, DENIS, 2MASS, MSX, AKARI, IRAS and WISE data. We also identify and
Mcdonald, I. +2 more
openaire +4 more sources