Results 141 to 150 of about 809,546 (293)

Gamma-ray binaries: microquasars and binary systems with pulsar

open access: yesIl Nuovo Cimento C, 2011
Invited talk presented at the Workshop "SciNeGHE 2010", September 8-10, 2010, Trieste, Italy; 6 pages, 1 figure.
openaire   +2 more sources

TESTING THEORIES OF GRAVITATION USING 21-YEAR TIMING OF PULSAR BINARY J1713+0747 [PDF]

open access: yes, 2015
We report 21-year timing of one of the most precise pulsars: PSR J1713+0747. Its pulse times of arrival are well modeled by a comprehensive pulsar binary model including its three-dimensional orbit and a noise model that incorporates short- and long ...
Weiwei Zhu   +23 more
semanticscholar   +1 more source

The Role of XMM–Newton in the Investigation of Persistent BeXRBs

open access: yesAstronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT The persistent BeXRBs are a class of high‐mass X‐ray binaries (HMXRBs), which are characterized by persistent low X‐ray luminosities (LX~1034$$ {L}_{\mathrm{X}}\sim {10}^{34} $$ erg s −1$$ {}^{-1} $$) and wide (Porb>$$ {P}_{\mathrm{orb}}> $$ 30 days), almost circular orbits. In these sources the NS is slowly rotating (with Pspin$$ {P}_{\mathrm{
Nicola La Palombara   +4 more
wiley   +1 more source

COBIPLANE: A Systematic Search for Compact Binary Millisecond Pulsars at Low Galactic Latitudes

open access: yesThe Astrophysical Journal
We present the main results obtained from the Compact Binary Pulsar Search in the Low-Latitude Neighborhood, an optical photometric survey designed to find new “spider” binary millisecond pulsars.
Marco Turchetta   +4 more
doaj   +1 more source

Orbital modulation of emission of the binary pulsar J0737-3039B

open access: yes, 2005
In binary radio pulsar system J0737-3039, slow pulsar B shows orbital modulations of intensity, being especially bright at two short orbital phases. We propose that these modulations are due to distortion of pulsar B magnetosphere by pulsar A wind which ...
Lyutikov, Maxim
core   +2 more sources

IDENTIFICATION OF THE HIGH-ENERGY GAMMA-RAY SOURCE 3FGL J1544.6–1125 AS A TRANSITIONAL MILLISECOND PULSAR BINARY IN AN ACCRETING STATE [PDF]

open access: yes, 2015
We present X-ray, ultraviolet, and optical observations of 1RXS J154439.4–112820, the most probable counterpart of the unassociated Fermi-LAT source 3FGL J1544.6–1125.
S. Bogdanov, J. Halpern
semanticscholar   +1 more source

Beyond Accretion Limits: The Rise of Pulsating Gems

open access: yesAstronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT The discovery of several ultraluminous X‐ray sources exhibiting fast and rapidly evolving X‐ray pulsations unequivocally associates these sources with accreting neutron stars orbiting relatively massive companion stars (> 8M ⊙$$ {}_{\odot } $$).
Gian Luca Israel   +26 more
wiley   +1 more source

X-RAY SPECTROSCOPY OF THE HIGH-MASS X-RAY BINARY PULSAR CENTAURUS X-3 OVER ITS BINARY ORBIT [PDF]

open access: yes, 2011
We present a comprehensive spectral analysis of the high-mass X-ray binary (HMXB) pulsar Centaurus X-3 with the Suzaku observatory covering nearly one orbital period.
S. Naik, B. Paul, Zulfikar Ali
semanticscholar   +1 more source

A Brief, Biased View of Neutron Star Cooling

open access: yesAstronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT This is a concise and non‐technical review of topics related to neutron star (NS) cooling, for both young NSs and NSs in low‐mass x‐ray binaries. Neutrino emission from the NS core drives cooling rates, via different processes including Urca processes and pair breaking and formation at the neutron superfluid critical temperature.
Craig Heinke
wiley   +1 more source

PROPERTIES AND EVOLUTION OF THE REDBACK MILLISECOND PULSAR BINARY PSR J2129–0429 [PDF]

open access: yes, 2015
PSR J2129−0429 is a “redback” eclipsing millisecond pulsar binary with an unusually long 15.2 hr orbit. It was discovered by the Green Bank Telescope in a targeted search of unidentified Fermi gamma-ray sources.
E. Bellm   +24 more
semanticscholar   +1 more source

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