Results 61 to 70 of about 777,035 (267)

Polarimetric evidence of a white dwarf pulsar in the binary system AR Scorpii [PDF]

open access: yesNature Astronomy, 2016
The variable star AR Scorpii (AR Sco) was recently discovered to pulse in brightness every 1.97 min from ultraviolet wavelengths into the radio regime. The system is composed of a cool, low-mass star in a tight, 3.55-hour orbit with a more massive white ...
D. Buckley   +4 more
semanticscholar   +1 more source

A precise mass measurement of the intermediate-mass binary pulsar PSR J1802-2124 [PDF]

open access: yes, 2010
PSR J1802-2124 is a 12.6-ms pulsar in a 16.8-hour binary orbit with a relatively massive white dwarf (WD) companion. These properties make it a member of the intermediate-mass class of binary pulsar (IMBP) systems.
A. Faulkner   +59 more
core   +1 more source

Gravitational waves from binary supermassive black holes missing in pulsar observations [PDF]

open access: yesScience, 2015
Placing bounds on gravitational wave detection Gravitational waves are expected to be generated by the interaction of the massive bodies in black-hole binary systems.
R. Shannon   +21 more
semanticscholar   +1 more source

Pulsars and Close Binary Systems [PDF]

open access: yesSymposium - International Astronomical Union, 1971
It is first considered what must happen if pulsars (i.e. neutron stars) are formed in close binary systems (CBS), and whether the resulting orbital motion and mass transfer should be observable. As this set of alternatives seems unlikely, there follow suggestions of how one might prevent the formation of neutron stars in close binaries.
Virginia Trimble, Martin J. Rees
openaire   +2 more sources

Binary-Binary Interactions and the Formation of the PSR B1620-26 Triple System in M4 [PDF]

open access: yes, 1994
The hierarchical triple system containing the millisecond pulsar PSR B1620-26 in M4 is the first triple star system ever detected in a globular cluster. Such systems should form in globular clusters as a result of dynamical interactions between binaries.
Hut, P., McMillan, S., Rasio, F. A.
core   +2 more sources

Discovery of Five Binary Radio Pulsars [PDF]

open access: yesThe Astrophysical Journal, 2001
We report on five binary pulsars discovered in the Parkes multibeam Galactic plane survey. All of the pulsars are old, with characteristic ages 1-11 Gyr, and have relatively small inferred magnetic fields, 5-90e8 G. The orbital periods range from 1.3 to 15 days.
Richard N. Manchester   +12 more
openaire   +2 more sources

Periodicity Search for Pulsar Binaries with TESS [PDF]

open access: yesThe Astrophysical Journal Letters, 2020
Abstract Pulsar binaries, in particular redback systems, provide good sources to study the pulsar wind flow and its interaction with the companion stars. Fermi-LAT have proposed probable pulsar binary candidates in its catalogs. An orbital modulation search of binary candidates is an effective way to identify pulsar binary sources from ...
Partha Sarathi Pal   +6 more
openaire   +3 more sources

Testing the Binary Hypothesis: Pulsar Timing Constraints on Supermassive Black Hole Binary Candidates [PDF]

open access: yes, 2017
The advent of time domain astronomy is revolutionizing our understanding of the universe. Programs such as the Catalina Real-time Transient Survey (CRTS) or the Palomar Transient Factory (PTF) surveyed millions of objects for several years, allowing ...
A. Sesana   +3 more
semanticscholar   +1 more source

Populating the Galaxy with pulsars I: stellar & binary evolution

open access: yes, 2008
The computation of theoretical pulsar populations has been a major component of pulsar studies since the 1970s. However, the majority of pulsar population synthesis has only regarded isolated pulsar evolution.
Alpar   +178 more
core   +1 more source

Gamma-ray binaries: pulsars in disguise? [PDF]

open access: yesAstronomy & Astrophysics, 2006
20 pages, 20 figures, accepted for publication in A& ...
Guillaume Dubus, Guillaume Dubus
openaire   +5 more sources

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