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相关论文: Statistics of Extinct Radio Pulsars

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Pulsars are the fast rotating neutron stars with strong magnetic field, that emit over a wide frequency range. In spite of the efforts during 40 years after the discovery of pulsars, the mechanism of their radio emission remains to be…

太阳与恒星天体物理 · 物理学 2015-03-19 V. M. Kontorovich , A. B. Flanchik

Radial pulsations of neutron stars and strange quark stars with nuclear crust are studied. The avoided crossing phenomenon occurring for the radial modes is found and discussed. Neutron star models are constructed using a realistic equation…

天体物理学 · 物理学 2007-05-23 D. Gondek , J. L. Zdunik

Recent radio pulsar observations have shown that a number of pulsars display interesting long term periodicities in their spin-down rates. At least some of these pulsars also undergo sharp changes in pulse profile. This has been…

太阳与恒星天体物理 · 物理学 2015-05-28 D. I. Jones

The spin frequency distribution of accreting millisecond X-ray pulsars cuts off sharply above 730 Hz, well below the breakup spin rate for most neutron star equations of state. I review several different ideas for explaining this cutoff.…

天体物理学 · 物理学 2009-11-13 Deepto Chakrabarty

Rapidly rotating magnetic neutron stars in eccentric binary systems containing an early type star provide a unique opportunity to investigate the interplay between radio pulsar, stellar wind and accretion phenomena. We summarise the radio…

天体物理学 · 物理学 2007-05-23 S. Campana , L. Stella , S. Mereghetti , M. Colpi

The known population of non-accreting neutron stars is ever growing and currently consists of more than 3500 sources. Pulsar surveys with the SKAO telescopes will greatly increase the known population, adding radio pulsars to every subgroup…

Young radio pulsars shed vast amounts of rotational energy, sometimes as high as 100,000 times the total energy loss rate from the sun. The wide range of phenomena resulting from this energy loss include: glitches, timing noise, jets, bow…

天体物理学 · 物理学 2007-05-23 J. F. Bell

The standing wave nodes of nonradial oscillations on a neutron star crust will drift with a definite angle velocity around rotational pole due to the rotation of neutron stars. This is called the nonradial oscillation node precession of…

天体物理学 · 物理学 2007-05-23 Haochen Li

Isolated pulsars are rotating neutron stars with accurately measured angular velocities $\Omega$, and their time derivatives which show unambiguously that the pulsars are slowing down. Although the exact mechanism of the spin-down is a…

高能天体物理现象 · 物理学 2015-04-01 Oliver Hamil

We analyze the evolutionary status of recently discovered long-period radio sources PSR J0901-4046, GLEAM-X J1627-52, and GPM J1839-10. We discuss the hypothesis that all three sources are radio pulsars. In the framework of standard…

高能天体物理现象 · 物理学 2023-10-31 M. D. Afonina , A. V. Biryukov , S. B. Popov

We have observed a total of 67 pulsars at five frequencies ranging from 243 to 3100 MHz. Observations at the lower frequencies were made at the Giant Metre Wave Telescope in India and those at higher frequencies at the Parkes Telescope in…

天体物理学 · 物理学 2009-11-13 Simon Johnston , Aris Karastergiou , Dipanjan Mitra , Yashwant Gupta

In this paper we review present state of theoretical and observational exploration of isolated neutron stars. We mainly discuss objects which do not show usual radiopulsar activity. We include into our review the following types of objects:…

天体物理学 · 物理学 2016-08-30 S. B. Popov , M. E. Prokhorov

There are now about fifty known radio pulsars in binary systems, including at least five in double neutron star binaries. In some cases, the stellar masses can be directly determined from measurements of relativistic orbital effects. In…

天体物理学 · 物理学 2009-10-30 S. E. Thorsett , Deepto Chakrabarty

The inclination angle $\chi$ between magnetic and rotation axes of pulsars is an important parameter in pulsar physics. The changes in the inclination angle of a pulsar would lead to observable effects, such as changes in the pulse beam…

高能天体物理现象 · 物理学 2024-04-24 Biao-Peng Li , Zhi-Fu Gao

Influences of the mass, moment of inertia, rotation, absence of stability in the atmosphere and some other parameters of neutron stars on the evolution of pulsars are examined. It is shown that the locations and evolutions of soft gamma…

天体物理学 · 物理学 2009-11-10 Oktay H. Guseinov , Askin Ankay , Sevinc O. Tagieva

We highlight similarities between recently discovered Rotating Radio Transients and X-ray Dim Isolated Neutron Stars. In particular, it is shown that X-ray Dim Isolated Neutron Stars have a birthrate comparable to that of Rotating Radio…

天体物理学 · 物理学 2009-11-11 S. B. Popov , R. Turolla , A. Possenti

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 describe observations of Rotating RAdio Transients (RRATs) that were discovered in a re-analysis of the Parkes Multi-beam Pulsar Survey (PMPS). The sources have now been monitored for sufficiently long to obtain seven new coherent timing…

太阳与恒星天体物理 · 物理学 2015-05-27 E. F. Keane , M. Kramer , A. G. Lyne , B. W. Stappers , M. A. McLaughlin , .

ROSAT has discovered a new group of isolated neutron stars characterized by soft black-body like spectra (kT ~ 50-120 eV), apparent absence of radio emission and no association with supernovae remnants. So far only six such sources are…

天体物理学 · 物理学 2016-08-30 C. Motch

The complete absence of radio pulsars with periods exceeding a few seconds has lead to the popular notion of the existence of a high $P$ death line. In the standard picture, beyond this boundary, pulsars with low spin rates cannot…

天体物理学 · 物理学 2009-10-30 Matthew G. Baring , Alice K. Harding