Results 31 to 40 of about 534,045 (239)
Eta Carinae in the Context of the Most Massive Stars [PDF]
, 2009 Eta Car, with its historical outbursts, visible ejecta and massive, variable winds, continues to challenge both observers and modelers. In just the past five years over 100 papers have been published on this fascinating object.
Damineli, Augusto, Gull, Theodore R.
core +3 more sources
Binary Interactions in Star Clusters [PDF]
Symposium - International Astronomical Union, 1988 Over the past decade, a very considerable amount of effort in stellar dynamics has gone into the study of interactions between binary systems and other stars. The asymptotic analytic results obtained by Heggie (1975) for binary-single star encounters have been largely confirmed and extended by later numerical experiments (Hills 1975, Hut and Bahcall ...
openaire +2 more sources
Strong Variability in AzV 493, an Extreme Oe-type Star in the SMC
The Astrophysical Journal, 2023 We present 18 yr of OGLE photometry together with spectra obtained over 12 yr revealing that the early Oe star AzV 493 shows strong photometric (Δ I < 1.2 mag) and spectroscopic variability with a dominant, 14.6 yr pattern and ∼40 day oscillations.
M. S. Oey +13 more
doaj +1 more source
How unique is Plaskett's star? A search for organized magnetic fields in short period, interacting or post-interaction massive binary systems [PDF]
, 2017 Amongst O-type stars with detected magnetic fields, the fast rotator in the close binary called Plaskett's star shows a variety of unusual properties.
Alecian, E. +7 more
core +2 more sources
The impact of binary-star yields on the spectra of galaxies [PDF]
, 2009 One of the complexities in modelling integrated spectra of stellar populations is the effect of interacting binary stars besides Type Ia supernovae (SNeIa).
Izzard, R. G., Ocvirk, P., Sansom, A. E.
core +2 more sources
The Interacting Binary Be Star HR 2142 [PDF]
International Astronomical Union Colloquium, 2002 AbstractCurrent information on the nature of the HR 2142 system is presented. The circumstellar material (CSM) including the mass flow toward and away from the mass-gaining B star has been studied from ∼ 100 IUESWP HIRES images obtained from 1979–95 and ground-based CCD data from KPNO acquired between 1985–2001.
Geraldine J. Peters, Douglas R. Gies
openaire +1 more source
Two-wind interactions in binaries with two orbiting giant stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Some red giant envelopes present spiral structures (seen either in dust-scattered stellar continuum or in molecular line emission), the most striking example probably being AFGL 3068. This object has been modeled (both analytically and numerically) in terms of a wind ejected from a star in orbit around a binary companion.
Castellanos-Ramírez, A +5 more
openaire +5 more sources
Hypervelocity binary stars: smoking gun of massive binary black holes [PDF]
Astrophys.J.666:L89-L92,2007, 2007 The hypervelocity stars recently found in the Galactic halo are expelled from the Galactic center through interactions between binary stars and the central massive black hole or between single stars and a hypothetical massive binary black hole. In this paper, we demonstrate that binary stars can be ejected out of the Galactic center with velocities up ...
arxiv +1 more source
Interactions in Massive Binary Stars as Seen by Interferometry [PDF]
, 2013 With the advent of large-collecting-area instruments, the number of objects that can be reached by optical long-baseline interferometry is steadily increasing. We present here a few results on massive binary stars, showing the interest of using this technique for studying the insight of interactions in these systems.
Millour, Florentin +3 more
openaire +5 more sources
Universe, 2021 I review the issues related to the appearance of hyperons in neutron star matter, focusing in particular on the problem of the maximum mass supported by hyperonic equations of state. I discuss the general mechanism that leads to the formation of hyperons
Domenico Logoteta
doaj +1 more source