Results 91 to 100 of about 131,089 (321)

Finding binaries from phase modulation of pulsating stars with Kepler

open access: yesEPJ Web of Conferences, 2017
Binary orbital motion causes a periodic variation in the path length travelled by light emitted from a star towards us. Hence, if the star is pulsating, the observed phase of the pulsation varies over the orbit.
Shibahashi Hiromoto   +2 more
doaj   +1 more source

Initial data for high-compactness black hole–neutron star binaries

open access: yesClassical and Quantum Gravity, 2016
9 pages, 4 Figures, Submitted to Phys.
Henriksson, Katherine   +3 more
openaire   +4 more sources

Formation and evolution of compact binaries in globular clusters – II. Binaries with neutron stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2008
25 pages, 7 figures, 12 tables, MNRAS ...
Ivanova, N.   +4 more
openaire   +2 more sources

Precise Parameters for Two LISA Sources

open access: yesThe Astrophysical Journal
We present precise parameters for two compact double white dwarf (DWD) binaries, SDSS J232230.20+050942.0 (J2322+0509) and SDSS J063449.92+380352.2 (J0634+3803), with orbital periods of 20 and 26.5 minutes, respectively.
Manuel Barrientos   +7 more
doaj   +1 more source

On the Optical Transients from Double White-dwarf Mergers

open access: yesThe Astrophysical Journal, 2023
Double white dwarf (DWD) mergers are relevant astrophysical sources expected to produce massive, highly magnetized white dwarfs (WDs), supernovae (SNe) Ia, and neutron stars (NSs).
M. F. Sousa   +4 more
doaj   +1 more source

Radio detection of the young binary HD 160934 [PDF]

open access: yes, 2013
Precise determination of dynamical masses of pre-main-sequence (PMS) stars is essential to calibrate stellar evolution models that are widely used to derive theoretical masses of young low-mass objects.
Arroyo-Torres, B.   +4 more
core   +2 more sources

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

open access: yesAdvanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park   +3 more
wiley   +1 more source

A Comprehensive Photometric Study of the Eclipsing SU UMa-type Cataclysmic Variable OY Carinae

open access: yesThe Astrophysical Journal
We present a comprehensive photometric study of the eclipsing dwarf nova OY Car based on ground-based observations and archival data from the Transiting Exoplanet Survey Satellite (TESS) and AAVSO.
Zhong-Tao Han   +7 more
doaj   +1 more source

Maximum mass ratio of AM CVn-type binary systems and maximum white dwarf mass in ultra-compact X-ray binaries [PDF]

open access: yesSerbian Astronomical Journal, 2011
AM CVn-type stars and ultra-compact X-ray binaries are extremely interesting semi-detached close binary systems in which the Roche lobe filling component is a white dwarf transferring mass to another white dwarf, neutron star or a black hole ...
Arbutina Bojan
doaj   +1 more source

Probing the composition of sub-millisecond rotating compact stars by r-modes instability [PDF]

open access: yes, 2012
We investigate the implications of the r-modes instability on the composition of a compact star rotating at a sub-millisecond period. In particular, the only viable astrophysical scenario for such an object, wich might present inside the Low Mass X-ray ...
Drago, Alessandro, Pagliara, Giuseppe
core   +1 more source

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