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A systematic X-ray survey of the most energetic rotation-powered pulsars known, based on spin-down energy loss rate, $\dot E$ = $I\omega\dot\omega$, shows that all energetic pulsars with $\dot E > \dot E_{c} \approx 3.4 \times\ 10^{36}$ erg…

天体物理学 · 物理学 2007-05-23 E. V. Gotthelf

An observational model is presented for the spectra of young rotation-powered pulsars and their nebulae based on a study of nine bright Crab-like pulsar systems observed with the Chandra X-ray observatory. A significant correlation is…

天体物理学 · 物理学 2009-11-07 E. V. Gotthelf

We calculate the joint period-spindown (P-Pdot) distributions of millisecond radio pulsars (MSRP) for the standard evolutionary model in order to test whether the observed MSRPs are the unequivocal descendants of millisecond X-ray pulsars…

星系天体物理 · 物理学 2009-11-13 Bulent Kiziltan , Stephen E. Thorsett

The orbital parameters of binaries at intermediate periods ($10^2$--$10^3$ d) are difficult to measure with conventional methods and are very incomplete. We have undertaken a new survey, applying our pulsation timing method to {\it Kepler}…

太阳与恒星天体物理 · 物理学 2017-12-27 Simon J. Murphy , Maxwell Moe , Donald W. Kurtz , Timothy R. Bedding , Hiromoto Shibahashi , Henri M. J. Boffin

Orbital parameters of binary radio pulsars reveal the history of the pulsars' formation and evolution including dynamic interactions with other objects. Advanced technology has enabled us to determine these orbital parameters accurately in…

太阳与恒星天体物理 · 物理学 2015-03-14 Manjari Bagchi

We investigate the formation of binary stellar systems. We consider a model where a `seed' protobinary system forms, via fragmentation, within a collapsing molecular cloud core and evolves to its final mass by accreting material from an…

天体物理学 · 物理学 2009-10-31 Matthew R. Bate

The Double Pulsar (PSR J0737-3039) is the only neutron star-neutron star (NS-NS) binary in which both NSs have been detectable as radio pulsars. The Double Pulsar has been assumed to dominate the Galactic NS-NS binary merger rate R_g among…

太阳与恒星天体物理 · 物理学 2015-03-19 Chunglee Kim , Benetge Bhakthi Pranama Perera , Maura A. McLaughlin

The Lense-Thirring effect from spinning neutron stars in double neutron star binaries contribute to the periastron advance of the orbit. This extra term involves the moment of inertia of the neutron stars. Moment of inertia, on the other…

高能天体物理现象 · 物理学 2018-02-14 Manjari Bagchi

We present a statistical study of pulsars and millisecond pulsars (MSPs) based on multiwavelength observations in the Galactic Field and Globular Clusters. We examine their emission properties, timing behavior, and spatial distributions,…

高能天体物理现象 · 物理学 2026-02-10 Maria Rah , Areg Mickaelian , Francesco Flammini Dotti , Rainer Spurzem

There exists a special class of X-ray pulsars that exhibit very slow pulsation of $P_{\rm spin}>1000$ s in the high mass X-ray binaries (HMXBs). We have studied the temporal and spectral properties of these superslow pulsation neutron star…

高能天体物理现象 · 物理学 2015-06-12 W. Wang

We have performed population synthesis calculation on the formation of binaries containing a black hole (BH) and a neutron star (NS) in the Galactic disk. Some of important input parameters, especially for the treatment of common envelope…

高能天体物理现象 · 物理学 2018-05-02 Yong Shao , Xiang-Dong Li

We investigate the statistics of isolated recycled pulsars and double neutron star binaries in the Galactic disk. Since recycled pulsars are believed to form through accretion and spinup in close binaries, the isolated objects presumably…

星系天体物理 · 物理学 2015-05-13 K. Belczynski , D. R. Lorimer , J. P. Ridley , S. J. Curran

[ABRIDGED] We present the discovery and follow-up observations of 142 pulsars found in the Parkes 20-cm multibeam pulsar survey of the Galactic plane. These new discoveries bring the total number of pulsars found by the survey to 742. In…

We present a population synthesis calculation to derive the total number of planetary nebulae (PN) in the Galaxy that descend from single stars and stars in binary systems. Using the most recent literature results on galactic and stellar…

天体物理学 · 物理学 2008-11-26 Maxwell Moe , Orsola De Marco

We use the grid of models described in paper~I to analyse those millisecond pulsar binaries whose secondaries have been studied optically. In particular, we find cooling ages for these binary systems that range from $< 1 \rm Gyr$ to $\sim…

天体物理学 · 物理学 2020-11-25 Brad M. S. Hansen , E. Sterl Phinney

Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+0327, a radio pulsar with a rotational period of 2.15 ms in a…

In this paper we show that the high energy $\gamma$-ray flux in the GeV domain from mature pulsar wind nebulae (PWN) scales as the change in rotational kinetic energy $I(\Omega_0^2-\Omega^2)/2$ since birth, rather than the present day…

天体物理学 · 物理学 2009-11-13 O. C. de Jager

The long-standing assumption of symmetric radio emission beams from the two magnetic poles of pulsars is challenged by observational evidence of asymmetry and underfill. Direct testing of this symmetry remains difficult for most pulsars. As…

高能天体物理现象 · 物理学 2026-05-01 Xiancong Wu , Hongguang Wang , Hao Tong , Rui Luo , Pengfei Wang , Chengbing Lyu , Hai Lei

It is believed that the radio pulsars rotating at spin periods of about 30 millisecond or even lower got such high spins through the transfer of angular momentum by accreting matter from their binary companions (or past companions) in the…

高能天体物理现象 · 物理学 2025-07-28 Arpita Choudhary

We investigate the optical linear polarization caused by Thomson scattering of the stellar radiation for gamma-ray binary \lsi61, which likely contains a young pulsar. Based on the pulsar binary scenario, we model the interaction between…

高能天体物理现象 · 物理学 2025-10-14 Jiaxin Liu , Haoyu Yuan , Xiangli Lei , Wenlong Xu , Jumpei Takata , Weihua Lei