Results 31 to 40 of about 300,769 (347)
Asteroseismology of KIC 8263801:Is it a member of NGC 6866 and a red clump star? [PDF]
, 2018 We present an asteroseismic analysis of the Kepler light curve of KIC 8263801, a red-giant star in the open cluster NGC 6866 that has previously been reported to be a helium-burning red-clump star.
Basu, Sarbani +4 more
core +2 more sources
, 1999 6 pages, 4 figures, conference paper: 35th Liege Int.
Herwig, Falk, Blöcker, Thomas
openaire +3 more sources
The Stellar Parameters and Evolutionary State of the Primary in the d'-Symbiotic System StH\alpha190 [PDF]
, 2001 We report on a high-resolution, spectroscopic stellar parameter and abundance analysis of a d' symbiotic star: the yellow component of StH\alpha190. This star has recently been discovered, and confirmed here, to be a rapidly rotating (vsini=100 km/s ...
Claudio B. Pereira +8 more
core +2 more sources
The Morphology of the Outflow in the Grazing Envelope Evolution
Galaxies, 2018 We study the grazing envelope evolution (GEE), where a secondary star, which orbits the surface of a giant star, accretes mass from the giant envelope and launches jets. We conduct simulations of the GEE with different half-opening angles and velocities,
Sagiv Shiber
doaj +1 more source
Can Life develop in the expanded habitable zones around Red Giant Stars?
, 2005 We present some new ideas about the possibility of life developing around sub-giant and red giant stars. Our study concerns the temporal evolution of the habitable zone.
Brack A. +16 more
core +3 more sources
The properties of the Malin 1 galaxy giant disk: A panchromatic view from the NGVS and GUViCS surveys [PDF]
, 2016 Low surface brightness galaxies (LSBGs) represent a significant percentage of local galaxies but their formation and evolution remain elusive. They may hold crucial information for our understanding of many key issues (i.e., census of baryonic and dark ...
Boissier, S. +11 more
core +6 more sources
Rubidium-Rich Asymptotic Giant Branch Stars [PDF]
Science, 2006 A long-debated issue concerning the nucleosynthesis of neutron-rich elements in asymptotic giant branch (AGB) stars is the identification of the neutron source. We report intermediate-mass (4 to 8 solar masses) AGB stars in our Galaxy that are rubidium-rich as a result of overproduction of the long-lived radioactive isotope 87
García-Hernández, D. A. +5 more
openaire +3 more sources
SBS 0802+529: A New Variable Star from the Second Byurakan Survey
Open Astronomy, 2012 A new emission line star was discovered on the plates of the Second Byurakan Survey (SBS). the follow up spectroscopy demonstrated that the object had a spectrum dominated by a late-type giant star with superposed hydrogen emission lines.
Chavushyan V. +4 more
doaj +1 more source
Dynamical Substructures of Galactic Globular Clusters II. NGC 6934 [PDF]
Journal of Astronomy and Space Sciences, 2004 The variations of the dynamical substructures of NGC 6934 have been investigated by means of performing point spread function stellar photometry and the surface photometry on BV CCD images of NGC 6934.
Jongwhan Rhee +3 more
doaj +1 more source
KEPLER RAPIDLY ROTATING GIANT STARS [PDF]
The Astrophysical Journal, 2015 Rapidly rotating giant stars are relatively rare and may represent important stages of stellar evolution, resulting from stellar coalescence of close binary systems or accretion of sub-stellar companions by their hosting stars. In the present letter we report 17 giant stars observed in the scope of the Kepler space mission exhibiting rapid rotation ...
A. D. Costa +11 more
openaire +3 more sources