Results 121 to 130 of about 809,546 (293)

Pulsar magnetospheres in binary systems

The Astrophysical Journal, 1985
The criterion for stability of a tangential discontinuity interface in a magnetized, perfectly conducting inviscid plasma is investigated by deriving the dispersion equation including the effects of both gravitational and centrifugal acceleration. The results are applied to neutron star magnetospheres in X-ray binaries. The Kelvin-Helmholtz instability
A. I. Ershkovich, J. F. Dolan
openaire   +1 more source

Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 [PDF]

Journal of Astronomy and Space Sciences, 2013
We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531.
Tzu-Ching Yen, Albert Kwok-Hing Kong, Yoichi Yatsu, Hidekazu Hanayama, Takahiro Nagayama, on behalf of OISTER   +5 more
doaj   +1 more source

Supernova remnant S147 and its associated neutron star(s)

, 2005
The supernova remnant S147 harbors the pulsar PSR J0538+2817 whose characteristic age is more than an order of magnitude greater than the kinematic age of the system (inferred from the angular offset of the pulsar from the geometric center of the ...
Anderson, Arnal, Bethe, Blondin, Bock, Cioffi, Colpi, Cordes, Drew, Fesen, Fürst, Gaensler, Gondhalekar, Gott, Gvaramadze, Gvaramadze, Gvaramadze, Hobbs, Iben, Illarionov, Kirshner, Kramer, Kundu, Lewandowski, Lozinskaya, Manchester, McGowan, Migliazzo, Milne, Morris, Ng, Phillips, Phillips, Reich, Romani, Sallmen, Sofue, Souvageot, Spruit, Sun, Tauris, Tenorio-Tagle, V. V. Gvaramadze, van Buren, van den Bergh, Vanbeveren, Vlemmings, Wex, Yakovlev   +48 more
core   +1 more source

SXP 1062, a young Be X-ray binary pulsar with long spin period - implications for the neutron star birth spin [PDF]

, 2011
Context. The Small Magellanic Cloud (SMC) is ideally suited to investigating the recent star formation history from X-ray source population studies. It harbours a large number of Be/X-ray binaries (Be stars with an accreting neutron star as companion ...
F. Haberl, R. Sturm, M. Filipović, W. Pietsch, E. Crawford   +4 more
semanticscholar   +1 more source

Genetic modification of Water spinach (Ipomoea aquatica), a genoprotective perennial leafy green

Physiologia Plantarum, Volume 177, Issue 3, May/June 2025.
Abstract Improvement of leafy greens, especially perennials with year‐round harvesting, is binding to the food security drive. “Food for All” by WHO demands the improvement of regional crops due to the agroclimatic specificity to ensure regional food security.
Fayas Thayale Purayil, Mariam Alzaabi, Shina Sasi, Saranya Krishnan, Zarreen Badar, Ling Li, Martin Kottackal, Khaled M. A. Amiri   +7 more
wiley   +1 more source

Hidden slow pulsars in binaries

The Astrophysical Journal, 1993
The recent discovery of the binary containing the slow pulsar PSR 1718-19 orbiting around a low-mass companion star adds new light on the characteristics of binary pulsars. The properties of the radio eclipses of PSR 1718-19 are the most striking observational characteristics of this system.
Marco Tavani, Leigh Brookshaw
openaire   +1 more source

Pulsars and Close Binary Systems [PDF]

Symposium - 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 Rees
openaire   +1 more source

High-cadence Timing of Binary Pulsars with CHIME

The Astrophysical Journal
We performed near-daily observations of the binary pulsars PSR J0218+4232, PSR J1518+4904, and PSR J2023+2853 with the Canadian Hydrogen Intensity Mapping Experiment (CHIME).
Chia Min Tan, Emmanuel Fonseca, Kathryn Crowter, Fengqiu Adam Dong, Victoria M. Kaspi, Kiyoshi W. Masui, James W. McKee, Bradley W. Meyers, Scott M. Ransom, Ingrid H. Stairs   +9 more
doaj   +1 more source

Multiwavelength observations of the transitional millisecond pulsar binary XSS J12270-4859 [PDF]

, 2015
We present an analysis of X-ray, ultraviolet and optical/near-IR photometric data of the transitional millisecond pulsar binary XSS J12270−4859, obtained at different epochs after the transition to a rotation-powered radio pulsar state. The observations,
D. Martino, A. Papitto, T. Belloni, M. Burgay, E. O. Wilhelmi, J. Li, A. Pellizzoni, A. Possenti, N. Rea, D. Torres   +9 more
semanticscholar   +1 more source

Dark Energy From the Gravitational Wave Background With Scalar Field Dark Matter

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Recent observational results, such as those from pulsar timing arrays (PTA), suggest a low‐frequency Gravitational Wave Background (GWB) permeates our universe. This opens the possibility that gravitational waves could span a broader spectrum, potentially impacting cosmological scales.
Edwin L. Pérez‐Ochoa, Tonatiuh Matos
wiley   +1 more source