Results 181 to 190 of about 5,486 (209)
Evidence for neutron capture in heavy-metal hot subdwarfs: Far-UV spectroscopy of EC22536-5304 and LSIV-14 116 [PDF]
M. Dorsch +10 more
openalex
The SALT survey of helium-rich hot subdwarfs: unsupervised classification and kinematic analysis [PDF]
A. Philip Monai, C. Simon Jeffery
openalex
A spectroscopic and proper motion search of Sloan Digital Sky Survey: red subdwarfs in binary systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 Z H Zhang, M C Galvez-Ortiz, S Catalan
exaly +2 more sources
Discovery of extremely lead-rich subdwarfs: does heavy metal signal the formation of subdwarf B stars? [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 C S Jeffery
exaly +2 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Astrophysics and Space Science, 2004
An interactive database interface to the subdwarf catalogue has been designed and prototyped. The implementation is still under development, but is already fully functional. More than 2300 stars from an updated edition of the subdwarf catalogue have been loaded into the database, and additional photometric data from many other sources have been ...
openaire +1 more source
An interactive database interface to the subdwarf catalogue has been designed and prototyped. The implementation is still under development, but is already fully functional. More than 2300 stars from an updated edition of the subdwarf catalogue have been loaded into the database, and additional photometric data from many other sources have been ...
openaire +1 more source
Symposium - International Astronomical Union, 1966
The photometric programmes at the Cape Observatory and the parallel spectroscopic programmes undertaken by Cape staff at the Radcliffe Observatory, Pretoria, have enabled us to produce considerable quantities of southern star data. Some of this has been published in the seriesFundamental Data for Southern Starsof which No. 5 has just appeared. Included
openaire +1 more source
The photometric programmes at the Cape Observatory and the parallel spectroscopic programmes undertaken by Cape staff at the Radcliffe Observatory, Pretoria, have enabled us to produce considerable quantities of southern star data. Some of this has been published in the seriesFundamental Data for Southern Starsof which No. 5 has just appeared. Included
openaire +1 more source
Nature, 1982
CH giants, with Mv around −1 to 0.5 (refs 1,2), are stars which have the following well-known properties: (1) weak lines of iron-group elements2, (2) rich in carbon, exceptionally strong features of CH, moderately strong (depending on the surface temperature) C2 and CN (refs 1,2), (3) relatively strong lines of the s-process elements (especially Sr and
Liang-Tai George Chiu, Richard G. Kron
openaire +1 more source
CH giants, with Mv around −1 to 0.5 (refs 1,2), are stars which have the following well-known properties: (1) weak lines of iron-group elements2, (2) rich in carbon, exceptionally strong features of CH, moderately strong (depending on the surface temperature) C2 and CN (refs 1,2), (3) relatively strong lines of the s-process elements (especially Sr and
Liang-Tai George Chiu, Richard G. Kron
openaire +1 more source
The Spatial Motion of Subdwarfs
Publications of the Astronomical Society of Japan, 1965Abstract From available observed data on 105 subdwarfs, it is found that their spectral types assigned are earlier by 6 or 7 subdivisions of a spectral type than those compatible with their effective temperature, their estimated space density is of order of 4 × 10–4 stars/pc3 or 2 × 10–4 M⊙/pc3 and their solar motion and the size of ...
openaire +1 more source
Pulsations in subdwarf B stars
Journal of Astrophysics and Astronomy, 2005Subdwarf B stars play a significant role in close binary evolution and in the hot star content of old stellar populations, in particular in giant elliptical galaxies. While the question of their origin poses several problems for stellar evolution theory, one of their most fascinating properties is the presence of multi-periodic 2–3 minute oscillations.
openaire +1 more source
1993
Spectroscopic and photometric data give evidence for a large fraction of binary stars among hot subdwarfs. Since our work aims at determining atmospheric parameters and distances of sdB and sdOB stars, we have to take special care of this aspect. We try to deconvolve the photometric data and derive colours for the subdwarf component of the binary.
A. Theissen +3 more
openaire +1 more source
Spectroscopic and photometric data give evidence for a large fraction of binary stars among hot subdwarfs. Since our work aims at determining atmospheric parameters and distances of sdB and sdOB stars, we have to take special care of this aspect. We try to deconvolve the photometric data and derive colours for the subdwarf component of the binary.
A. Theissen +3 more
openaire +1 more source