Results 31 to 40 of about 1,142,001 (295)

CHIME Discovery of a Binary Pulsar with a Massive Nondegenerate Companion

open access: yesThe Astrophysical Journal, 2023
Of the more than 3000 radio pulsars currently known, only ∼300 are in binary systems, and only five of these consist of young pulsars with massive nondegenerate companions.
Bridget C. Andersen   +27 more
doaj   +1 more source

Looking at the Stars

open access: yesTheoretical Computer Science, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Elena Prieto-Rodriguez, Christian Sloper
openaire   +4 more sources

A Dragon Out of Breath? Monitoring High-velocity Outflows from the High-mass Gamma-Ray Binary LS 2883/PSR B1259–63 During the 2017–2021 Binary Cycle

open access: yesThe Astrophysical Journal, 2023
Observations of the high-mass gamma-ray binary LS 2883/PSR B1259–63 with the Chandra X-ray Observatory during the 2011–2014 and 2014–2017 binary cycles have shown X-ray-emitting clumps, presumably ejected from the binary during periastron passages. These
Jeremy Hare   +3 more
doaj   +1 more source

The Effect of Viscosity on the Temperature of Ae Star Disks

open access: yesGalaxies
This study explores the impact of viscous heating on decretion disks around Classical Ae (CAe) stars, with a focus on modeling the disk’s thermal structure.
R. Anusha, T. A. A. Sigut
doaj   +1 more source

Rainbow’s stars [PDF]

open access: yesThe European Physical Journal C, 2017
In recent years, a growing interest on the equilibrium of compact astrophysical objects like white dwarf and neutron stars has been manifested. In particular, various modifications due to Planck scale energy effects have been considered. In this paper we analyze the modification induced by Gravity's Rainbow on the equilibrium configurations described ...
Garattini, Remo, Mandanici, Gianluca
openaire   +3 more sources

K2 Photometry and Long-Term Hα Variability in Four Previously Unreported Be Stars

open access: yesUniverse
Classical Be stars are key laboratories for investigating how rapid rotation, pulsations, and mass loss couple to the formation and evolution of circumstellar decretion disks.
Alan Wagner Pereira   +6 more
doaj   +1 more source

Be Stars: Rapidly Rotating Pulsators

open access: yes, 2012
I will show that Be stars are, without exception, a class of rapidly rotating stars, which are in the majority of cases pulsating stars as well, while none of them does possess a large scale (i.e.
A. Domiciano de Souza   +24 more
core   +1 more source

High-resolution, H band Spectroscopy of Be Stars with SDSS-III/APOGEE: I. New Be Stars, Line Identifications, and Line Profiles [PDF]

open access: yes, 2014
APOGEE has amassed the largest ever collection of multi-epoch, high-resolution (R~22,500), H-band spectra for B-type emission line (Be) stars. The 128/238 APOGEE Be stars for which emission had never previously been reported serve to increase the total ...
Beaton, Rachael   +28 more
core   +3 more sources

Review about populations of Be stars: stellar evolution of extreme stars

open access: yes, 2010
Among the emission-line stars, the classical Be stars known for their extreme properties are remarkable. The Be stars are B-type main sequence stars that have displayed at least once in their life emission lines in their spectrum.
Anne-Marie Hubert   +41 more
core   +2 more sources

Compact Stars - How Exotic Can They Be?

open access: yes, 2013
Strong interaction physics under extreme conditions of high temperature and/or density is of central interest in modern nuclear physics for experimentalists and theorists alike.
A Mishra   +21 more
core   +1 more source

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