Results 11 to 20 of about 1,216,320 (294)

Spectrophotometry in Stellar Associations [PDF]

open access: yesSymposium - International Astronomical Union, 1978
When analyzing the spectral energy distributions of early type stars as measured at Cerro Calán, we find that many of them have a feature which we have called ΔD (Gutiérrez-Moreno et al., 1968); the internal error of the measure of ΔD for a single star is ±0.02.
A. Gutiérrez-Moreno, H. Moreno
openaire   +1 more source

Stellar Associations in the LMC [PDF]

open access: yesSymposium - International Astronomical Union, 1999
The stellar associations are defined as loose unbound concentrations of young stars with a bright OB stellar component, mainly located at the most recent star forming regions, representing the smallest units in the hierarchy of stellar systems in galaxies.
E. Kontizas   +5 more
openaire   +1 more source

From theoretical stellar spectra to realistic models of the Milky Way : a never ending Odyssey [PDF]

open access: yes, 2007
The last chapter is dedicated to the compilation of the results and the discussion about the success of - but also about the problems that have arisen during - and in part also survived - this work. The main goal of this thesis was, firstly, to convert
Ammon, Karin
core   +1 more source

Young stellar clusters and associations in M 33 [PDF]

open access: yesAstronomy and Astrophysics, 2010
17 pages, 13 figures.
Grossi, M.   +3 more
openaire   +2 more sources

Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]

open access: yes, 2014
We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L.   +73 more
core   +1 more source

Fictions, Conditionals, and Stellar Astrophysics [PDF]

open access: yes, 2013
This article argues in favour of an inferential role for fictions in scientific modelling. The argument proceeds by means of a detailed case study, namely models of the internal structure of stars in stellar astrophysics.
Suárez, Mauricio, Mauricio Suárez
core   +1 more source

STEllAR-GROUP/octotiger: Kokkos kernels

open access: yes, 2021
What's Changed Branch by @diehlpk in https://github.com/STEllAR-GROUP/octotiger/pull/341 Add Zenodo DOI by @diehlpk in https://github.com/STEllAR-GROUP/octotiger/pull/342 Docu by @diehlpk in https://github.com/STEllAR-GROUP/octotiger/pull/347 Add ...
Biddiscombe, John   +21 more
core   +1 more source

Radiative Transfer in 3D Model Stellar Atmospheres

open access: yes, 2003
Recently 3D hydrodynamical simulations of stellar surface convection have become feasible thanks to advances in computer technology and efficient numerical algorithms. Available observational diagnostics indicate that these models are highly realistic in
Asplund, Martin,, Collet, Remo,
core   +8 more sources

Influence of surface stressing on stellar coronae and winds [PDF]

open access: yes, 2013
STFC funding has supported this research.The large-scale field of the Sun is well represented by its lowest energy (or potential) state. Recent observations, by comparison, reveal that many solar-type stars show large-scale surface magnetic fields that ...
Morin, J.   +12 more
core   +1 more source

Lithium depletion boundary, stellar associations, and

open access: yes, 2022
Context. Stellar ages are key to improving our understanding of different astrophysical phenomena. However, many techniques to estimate stellar ages are highly model-dependent.
J. R. Stauffer   +11 more
core   +1 more source

Home - About - Disclaimer - Privacy