Results 251 to 260 of about 221,937 (281)

Direct Samples of Interstellar and Interplanetary Material with IMAP. [PDF]

open access: yesSpace Sci Rev
Szalay JR   +21 more
europepmc   +1 more source

Asteroseismic Determination of sdB Stars Fundamental Parameters

Astrophysics and Space Science, 2004
Recent observational efforts and theoretical breakthroughs have encouraged the development of detailed asteroseismic analyses of rapidly oscillating sdB stars (the so-called EC14026 stars). This led to the first seismic determinations of the fundamental parameters that define the structure of EHB stars.
Stéphane Charpinet   +2 more
openaire   +2 more sources

Bayesian sampling with BeAtlas, a grid of synthetic Be star spectra I. Recovering the fundamental parameters of α Eri and β CMi

Monthly notices of the Royal Astronomical Society, 2023
Classical Be stars are fast rotating, near main sequence B-type stars. The rotation and the presence of circumstellar discs profoundly modify the observables of active Be stars.
A. Rubio   +16 more
semanticscholar   +1 more source

Fundamental parameters for 30 faint open clusters with Gaia EDR3 based on the more reliable members

Nippon Tenmon Gakkai obun kenkyu hokoku, 2021
An open cluster is an ideal region to study the evolution of stars. In this work, we use Gaia Early Data Release 3 (Gaia EDR3) to derive the fundamental parameters of 30 faint open clusters listed in the catalogue given by Cantat-Gaudin et al. (2018, A&
Xu Ding   +6 more
semanticscholar   +1 more source

The Fundamental Parameters of Massive Stars

AIP Conference Proceedings, 2009
We analyzed far‐UV (FUSE), UV (HST, IUE) and optical spectra of hot massive stars in the Milky Way with non‐LTE, line‐blanketed models with sphericity and expanding winds. We were able to reconcile previously discrepant diagnostics from Hα to highly ionized transitions (e.g.
Luciana Bianchi   +6 more
openaire   +1 more source

Asteroseismic Determination of Fundamental Parameters for Exoplanet Host Stars with Deep Learning

Astronomy and Computing, 2022
Asteroseismology — techniquesNeural network — starsOscillations — starsFundamental ...
Z. Guo, Chen Jiang
openaire   +2 more sources

Fundamental Parameters for Seven Be Stars

1998
The fundamental parameters (distance, luminosity, temperature, mass) of seven Be stars were determined from a study combining ultraviolet fluxes, Balmer discontinuity parameters, near-infrared observations, and trigonometric parallaxes measured by the Hipparcos satellite.
openaire   +1 more source

New Stellar Parameters, Metallicities, and Elemental Abundance Ratios for 311 Metal-poor Stars

Astronomical Journal
We present equivalent widths, improved model atmosphere parameters, and revised abundances for 14 species of 11 elements derived from high-resolution optical spectroscopy of 311 metal-poor stars.
Sanil Mittal, I. Roederer
semanticscholar   +1 more source

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