Results 31 to 40 of about 299,299 (345)
UV-bright Star-forming Clumps and Their Host Galaxies in UVCANDELS at 0.5 ≤ z ≤ 1
The Astrophysical Journal, 2023 Giant star-forming clumps are a prominent feature of star-forming galaxies (SFGs) and contain important clues on galaxy formation and evolution. However, the basic demographics of clumps and their host galaxies remain uncertain.
Alec Martin +34 more
doaj +1 more source
, 1999 6 pages, 4 figures, conference paper: 35th Liege Int.
Herwig, Falk, Blöcker, Thomas
openaire +3 more sources
False Planets around Giant Stars: A Case Study of Sanders 364 in M67
The Astronomical Journal, 2023 Discovering planets in sparsely populated regions of parameter space is crucial to improving our understanding of planetary formation and evolution. One such region is the subset of planets that orbit giant, evolved stars.
Qijia Zhou +7 more
doaj +1 more source
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
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
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
AMBER/VLTI observations of 5 giant stars [PDF]
, 2011 While the search for exoplanets around main sequence stars more massive than the Sun have found relatively few such objects, surveys performed around giant stars have led to the discovery of more than 30 new exoplanets.
A. P. Hatzes +43 more
core +1 more source
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