Results 21 to 30 of about 299,299 (345)
Monthly Notices of the Royal Astronomical Society: Letters, 2020 ABSTRACT With the spatial resolution of the Atacama Large Millimetre Array (ALMA), dusty galaxies in the distant Universe typically appear as single, compact blobs of dust emission, with a median half-light radius, ≈1 kpc. Occasionally, strong gravitational lensing by foreground galaxies or galaxy clusters has probed spatial scales 1–2 ...
R J Ivison +7 more
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Kepler-432: a red giant interacting with one of its two long period giant planets [PDF]
, 2015 We report the discovery of Kepler-432b, a giant planet ($M_b = 5.41^{+0.32}_{-0.18} M_{\rm Jup}, R_b = 1.145^{+0.036}_{-0.039} R_{\rm Jup}$) transiting an evolved star $(M_\star = 1.32^{+0.10}_{-0.07} M_\odot, R_\star = 4.06^{+0.12}_{-0.08} R_\odot ...
Aguirre, Victor Silva +31 more
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The Astrophysical Journal, 2023 In previous work, we identified a population of 38 cool and luminous variable stars in the Magellanic Clouds and examined 11 in detail in order to classify them as either Thorne–Żytkow objects (TŻOs; red supergiants with a neutron star cores) or super ...
Anna J. G. O‘Grady +11 more
doaj +1 more source
Nature, 1997 Yerkes Observatory, 1892–1950: The Birth, Near Death, and Resurrection of a Scientific Research Institution by Donald E. Osterbrock. University of Chicago Press: 1997. Pp. 384.
openaire +1 more source
The Primordial Abundance of $^6$Li and $^9$be [PDF]
, 1994 Light element ($^6$Li, $^7$Li and $^9$Be) depletion isochrones for halo stars have been calculated with standard stellar evolution models. These models include the latest available opacities and are computed through the sub-giant branch. If $^6$Li is not
Chaboyer, Brian
core +2 more sources
Planets, Planetary Nebulae, and Intermediate Luminosity Optical Transients (ILOTs)
Galaxies, 2018 I review some aspects related to the influence of planets on the evolution of stars before and beyond the main sequence. Some processes include the tidal destruction of a planet on to a very young main sequence star, on to a low-mass main sequence star ...
Noam Soker
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Planetary Engulfment Prognosis within the ρ CrB System
The Astrophysical Journal, 2023 Exoplanets have been detected around stars at various stages of their lives, ranging from young stars emerging from formation to the latter stages of evolution, including white dwarfs and neutron stars.
Stephen R. Kane
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Neutron stars are giant hypernuclei? [PDF]
The Astrophysical Journal, 1985 Neutron stars are studied in the framework of Lagrangian field theory of interacting nucleons, hyperons, and mesons, which is solved in the mean field approximation. The theory is constrained to account for the four bulk properties of nuclear matter; the saturation binding and density, compressibility, and charge symmetry energy.
openaire +2 more sources
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
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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