Results 71 to 80 of about 809,546 (293)

A Dense Companion to the Short-period Millisecond Pulsar Binary PSR J0636+5128 [PDF]

Astrophysical Journal, 2018
PSR J0636+5128 is a millisecond pulsar in one of the most compact pulsar binaries known, with a 96 minute orbital period. The pulsar mass function suggests a very low mass companion, similar to that seen in so-called “black widow” binaries.
D. Kaplan, K. Stovall, M. Kerkwijk, C. Fremling, A. Istrate   +4 more
semanticscholar   +1 more source

Exploring the Extra Component in the Gamma-ray Emission of the New Redback Candidate 3FGL J2039.6-5618 [PDF]

Journal of Astronomy and Space Sciences, 2016
A redback system is a binary system composed of a pulsar and a main sequence star. The inverse Compton (IC) scattering between the stellar soft photons and the relativistic pulsar wind will generate orbital-modulating GeV photons.
Cho-Wing Ng, Kwong-Sang Cheng, Jumpei Takata   +2 more
doaj   +1 more source

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

Nature 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, P. Meintjes, S. Potter, T. Marsh, B. Gänsicke   +4 more
semanticscholar   +1 more source

Ultralight Dark Matter Resonates with Binary Pulsars [PDF]

Physical Review Letters, 2017
6 pages, 3 figures; references added. v3: Typo corrected.
Blas, Diego, Nacir, Diana López, Sibiryakov, Sergey   +2 more
openaire   +5 more sources

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

, 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, Z. Haiman, B. Kocsis, L. Kelley   +3 more
semanticscholar   +1 more source

Bits Missing: Finding Exotic Pulsars Using bfloat16 on NVIDIA GPUs

The Astrophysical Journal Supplement Series, 2023
The Fourier domain acceleration search (FDAS) is an effective technique for detecting faint binary pulsars in large radio astronomy data sets. This paper quantifies the sensitivity impact of reducing numerical precision in the graphics processing unit ...
Jack White, Karel Adámek, Jayanta Roy, Sofia Dimoudi, Scott M. Ransom, Wesley Armour   +5 more
doaj   +1 more source

Populating the Galaxy with pulsars I: stellar & binary evolution

, 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, Arons, Arzoumanian, Baade, Baade, Bailes, Belczynski, Belczynski, Bell, Beloborodov, Bhattacharya, Bhattacharya, Bildsten, Bisnovatyi-Kogan, Blondin, Bonai Marinovi, Burgay, Burgay, Cameron, Champion, Chandrasekhar, Chen, Choudhuri, Choudhuri, Colpi, Contopoulos, Cumming, Dai, Davidson, Deloye, Dewey, Dewi, Dewi, Dewi, Duncan, Duquennoy, Faucher-Giguere, Faulkner, Ferrario, Freire, Freire, Freire, Friedman, Fryer, Fryer, Fryer, Fryer, Galloway, Geppert, Gold, Goldreich, Gonthier, Gonthier, Gotthelf, Gunn, Harding, Harding, Harding, Harding, Harding, Harding, Hartman, Heger, Heger, Herant, Herant, Hewish, Hibschman, Hobbs, Huang, Hurley, Hurley, Illarionov, Ivanova, Jahan-Miri, Jahan-Miri, James R. Murray, Janka, Jarrod R. Hurley, Kaaret, Kalogera, Kiel, Kim, Kitaura, Konar, Konar, Konar, Konar, Krimm, Kroupa, Kulkarni, Kundt, Kuranov, Lattimer, Lattimer, Levin, Liu, Lorimer, Lorimer, Lorimer, Lovelace, Lyne, Lyne, Lyne, Manchester, Matthew Bailes, Melatos, Melatos, Mezzacappa, Mezzacappa, Mezzacappa, Michel, Miyaji, Muslimov, Muslimov, Nice, Nice, Nomoto, Nomoto, Nomoto, O'Shaughnessy, O'Shaughnessy, Ostriker, Pacini, Paul D. Kiel, Payne, Payne, Pfahl, Pfahl, Phinney, Podsiadlowski, Podsiadlowski, Podsiadlowski, Poelarends, Portegies Zwart, Portegies Zwart, Possenti, Possenti, Press, Pringle, Rathnasree, Regimbau, Regimbau, Romani, Ruderman, Ruderman, Ruderman, Ruderman, Ruffert, Savonije, Shapiro, Shibazaki, Shklovsky, Spitkovsky, Spruit, Stollman, Story, Taam, Tauris, Tavani, Taylor, Thompson, Thompson, Thorne, Tolman, Ulrich, Urpin, Urpin, van den Heuvel, van Kerkwijk, van Paradijs, van Straten, Verbiest, Vivekanand, Wheeler, Willems, Woods, Zhang, Zhang   +178 more
core   +1 more source

High-energy Emissions from the Pulsar/Be Binary System PSR J2032+4127/MT91 213 [PDF]

, 2017
PSR J2032+4127 is a radio-loud gamma-ray-emitting pulsar; it is orbiting around a high-mass Be type star with a very long orbital period of 25–50 years, and is approaching periastron, which will occur in late 2017/early 2018.
J. Takata, P. Tam, C. Ng, K. L. Li, A. Kong, C. Hui, K. Cheng   +6 more
semanticscholar   +1 more source

Furnishing the Galaxy with Pulsars

, 2007
The majority of pulsar population synthesis studies performed to date have focused on isolated pulsar evolution. Those that have incorporated pulsar evolution within binary systems have tended to either treat binary evolution poorly of evolve the pulsar ...
A. Cumming, C. Bassa, James Murray, Jarrod Hurley, Matthew Bailes, Paul Kiel, V. M. Kaspi, Z. Wang   +7 more
core   +1 more source

Identifying Companions in Pulsar Binary Systems via Gaia Data

Universe
In the optical band, very few pulsars can be directly detected, but some of the pulsar binary companions can be observed. This study leverages high-precision astrometric data from Gaia Data Release 3 (DR3) to identify pulsar companions in binary systems.
Yueqi Song, Li Guo, Zhen Yan, Qiqi Wu, Guangli Wang, Ying Wang   +5 more
doaj   +1 more source