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Related papers: Scenarios for GCRT J1745-3009

200 papers

We present a generic theoretical model for the structuring of a relativistic jet propagating through the ejecta of a binary neutron star merger event, introducing the effects of the neutron conversion-diffusion, which provides a baryon flux…

High Energy Astrophysical Phenomena · Physics 2021-03-17 Edwan Préau , Kunihito Ioka , Peter Mészáros

There are three experimentally observed effects in rotating superconductors that are so far unexplained. Some authors have tried to interpret such a phenomena as possible new gravitational properties of coherent quantum systems: in…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Cosimo Bambi

The discovery of millisecond pulsars switching between states powered either by the rotation of their magnetic field or by the accretion of matter, has recently proved the tight link shared by millisecond radio pulsars and neutron stars in…

High Energy Astrophysical Phenomena · Physics 2015-04-28 A. Papitto , D. F. Torres

The nature of two recently discovered radio emitters with unusually long periods of 18min (GLEAM-X J1627-52) and 21min (GPM J1839-10) is highly debated. Their bright radio emission resembles that of radio magnetars, but their long…

Known classes of radio wavelength transients range from the nearby--stellar flares and radio pulsars--to the distant Universe--\gamma-ray burst afterglows. Hypothesized classes of radio transients include analogs of known objects, e.g.,…

Astrophysics · Physics 2009-11-13 J. Lazio

XMMSL1 J171900.4-353217 is a very-faint X-ray transient that was discovered in 2010 March when it exhibited an outburst. We report on 7 observations, obtained with the X-Ray Telescope (XRT) aboard the Neil Gehrels {\it{Swift}} Observatory…

High Energy Astrophysical Phenomena · Physics 2024-10-01 O. Ahmed , N. Degenaar , R. Wijnands , M. Armas Padilla

A few members of the recently discovered class of long-period transients have been identified as binaries with white-dwarf primaries. In most cases, however, electromagnetic data are inconclusive, and isolated magnetars or compact binaries…

High Energy Astrophysical Phenomena · Physics 2025-09-09 Arthur G. Suvorov , Clara Dehman , José A. Pons

Long-period radio transients (LPTs) are a newly discovered class of radio emitters with periods ranging from minutes to hours. The astrophysical nature remains undetermined, particularly of LPTs with no detectable companions. We report the…

The properties of low-mass neutron stars with rigid rotation are considered. The possible evolution paths of such stars in a close binary system with mass transfer are calculated. The properties of the gamma-ray burst GRB 170817A…

High Energy Astrophysical Phenomena · Physics 2020-05-12 A. V. Yudin , T. L. Razinkova , S. I. Blinnikov

We consider the evolutionary state of the black-hole X-ray source GRO J1655-40 in the context of its transient nature. Recent optical observations show that the donor in GRO J1655-40 is an intermediate-mass star (~ 2.3 solar masses)…

Astrophysics · Physics 2009-10-30 Ulrich Kolb , Andrew King , Hans Ritter , Juhan Frank

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…

Astrophysics · Physics 2009-11-10 Maxim Lyutikov

While fewer in number than the dominant rotation-powered radio pulsar population, peculiar classes of isolated neutron stars (INSs) -- which include magnetars, the ROSAT-discovered "Magnificent Seven" (M7), rotating radio transients…

High Energy Astrophysical Phenomena · Physics 2012-08-07 Adriana Mancini Pires , Christian Motch , Roberto Turolla , Axel Schwope , Maura Pilia , Aldo Treves , Sergei B. Popov , Eduardo Janot-Pacheco

We report the discovery of 3.76-s pulsations from a new burst source near Sgr A* observed by the NuSTAR Observatory. The strong signal from SGR J1745-29 presents a complex pulse profile modulated with pulsed fraction 27+/-3 % in the 3-10…

We present the results of a radio transient and polarisation survey towards the Galactic Centre, conducted as part of the Australian Square Kilometre Array Pathfinder Variables and Slow Transients pilot survey. The survey region consisted…

4FGL J0935.5+0901, a $\gamma$-ray source recently identified as a candidate redback-type millisecond pulsar binary (MSP), shows an interesting feature of having double-peaked emission lines in its optical spectrum. The feature would further…

High Energy Astrophysical Phenomena · Physics 2022-02-16 Dong Zheng , Zhong-Xiang Wang , Yi Xing , Jithesh Vadakkumthani

We have observed the radio-quiet X-ray pulsar 1E 1207.4-5209 with the high throughput EPIC cameras onboard XMM-Newton. The spectrum of this peculiar source is characterized by two broad absorption features which present significant…

Astrophysics · Physics 2007-05-23 A. De Luca , S. Mereghetti , P. A. Caraveo , R. P. Mignani , W. Becker , G. F. Bignami

We consider the spin evolution of highly magnetized neutron stars in a hypercritical inflow just after their birth in supernovae. Presence of a strong magnetic field could deform the star and if the symmetry axis of the field is misaligned…

Astrophysics · Physics 2009-11-07 Shin Yoshida

We consider a simple scenario for the accretion of matter onto a neutron star in order to understand processes in the inner pulsar magnetosphere during the transition stage between different accretion modes. A simple quasi-spherical…

High Energy Astrophysical Phenomena · Physics 2016-02-12 W. Bednarek , P. Banasinski

We model the duration of the propeller stage in wide binary systems with neutron stars and calculate the time of accretion onset for various propeller models. We apply our modeling to the symbiotic X-ray binary SWIFT J0850.8-4219. Unless a…

High Energy Astrophysical Phenomena · Physics 2024-09-04 M. D. Afonina , S. B. Popov

We report on the identification of the new Galactic Center (GC) transient Swift J174540.7-290015 as a likely low mass X-ray binary (LMXB) located at only 16 arcsec from Sgr A*. This transient was detected on 2016 February 6th during the…

High Energy Astrophysical Phenomena · Physics 2016-06-15 G. Ponti , C. Jin , B. De Marco , N. Rea , A. Rau , F. Haberl , F. Coti Zelati , E. Bozzo , C. Ferrigno , G. C. Bower , P. Demorest