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We have made polarimetric monitoring observations of millisecond pulsars visible from the northern hemisphere at 1410 MHz. Their emission properties are compared with those of normal pulsars. Although we demonstrated in paper I that…

Merging binary black holes exhibit a ringdown phase in which they primarily emit gravitational waves in the shape of damped sinusoids corresponding to quasi-normal modes of the Kerr remnant. In general, each mode carries four degrees of…

General Relativity and Quantum Cosmology · Physics 2026-05-18 Nicole Khusid , Will Farr , Max Isi

In this work we present a revised measurement of the phase-averaged optical polarisation of the Vela pulsar (PSR B0833-45), for which only one value has been published so far (Wagner & Seifert 2000). Our measurement has been obtained…

Astrophysics · Physics 2009-11-13 R. P. Mignani , S. Bagnulo , J. Dyks , G. Lo Curto , A. Slowikowska

We present strong observational evidence for a relationship between the direction of a pulsar's motion and its rotation axis. We show carefully calibrated polarization data for 25 pulsars, 20 of which display linearly polarized emission…

Astrophysics · Physics 2009-11-13 Simon Johnston , G. Hobbs , S. Vigeland , M. Kramer , J. M. Weisberg , A. G. Lyne

In spider pulsar systems, a relativistic intrabinary shock forms when the pulsar wind collides with the massive outflow driven off the pulsar's low-mass stellar companion. The shock is a site of non-thermal particle acceleration, likely via…

High Energy Astrophysical Phenomena · Physics 2025-08-18 Andrew G. Sullivan , Jorge Cortés , Lorenzo Sironi

In this study we propose a classification scheme for the phenomenon of subpulse drifting in pulsars. We have assembled an exhaustive list of pulsars which exhibit subpulse drifting from previously published results as well as recent…

High Energy Astrophysical Phenomena · Physics 2018-10-31 Rahul Basu , Dipanjan Mitra , George I. Melikidze , Anna Skrzypczak

Using observations of X-ray pulsar Her X-1 by the Imaging X-ray Polarimetry Explorer, we report on a highly significant ($>17\sigma$) detection of the polarization signal from an accreting neutron star. The observed degree of the linear…

High Energy Astrophysical Phenomena · Physics 2023-01-16 Victor Doroshenko , Juri Poutanen , Sergey S. Tsygankov , Valery F. Suleimanov , Matteo Bachetti , Ilaria Caiazzo , Enrico Costa , Alessandro Di Marco , Jeremy Heyl , Fabio La Monaca , Fabio Muleri , Alexander A. Mushtukov , George G. Pavlov , Brian D. Ramsey , John Rankin , Andrea Santangelo , Paolo Soffitta , Rüdiger Staubert , Martin C. Weisskopf , Silvia Zane , Iván Agudo , Lucio A. Antonelli , Luca Baldini , Wayne H. Baumgartner , Ronaldo Bellazzini , Stefano Bianchi , Stephen D. Bongiorno , Raffaella Bonino , Alessandro Brez , Niccolò Bucciantini , Fiamma Capitanio , Simone Castellano , Elisabetta Cavazzuti , Stefano Ciprini , Alessandra De Rosa , Ettore Del Monte , Laura Di Gesu , Niccolò Di Lalla , Immacolata Donnarumma , Michal Dovciak , Steven R. Ehlert , Teruaki Enoto , Yuri Evangelista , Sergio Fabiani , Riccardo Ferrazzoli , Javier A. Garcia , Shuichi Gunji , Kiyoshi Hayashida , Wataru Iwakiri , Svetlana G. Jorstad , Vladimir Karas , Takao Kitaguchi , Jeffery J. Kolodziejczak , Henric Krawczynski , Luca Latronico , Ioannis Liodakis , Simone Maldera , Alberto Manfreda , Frédéric Marin , Andrea Marinucci , Alan P. Marscher , Herman L. Marshall , Giorgio Matt , Ikuyuki Mitsuishi , Tsunefumi Mizuno , C. -Y. Ng , Stephen L. O'Dell , Nicola Omodei , Chiara Oppedisano , Alessandro Papitto , Abel L. Peirson , Matteo Perri , Melissa Pesce-Rollins , Maura Pilia , Andrea Possenti , Simonetta Puccetti , Ajay Ratheesh , Roger W. Romani , Carmelo Sgrò , Patrick Slane , Gloria Spandre , Rashid A. Sunyaev , Toru Tamagawa , Fabrizio Tavecchio , Roberto Taverna , Yuzuru Tawara , Allyn F. Tennant , Nicolas E. Thomas , Francesco Tombesi , Alessio Trois , Roberto Turolla , Jacco Vink , Kinwah Wu , Fei Xie

We analyse the influence of rotation on shapes of pulse profiles of fast-rotating (millisecond) pulsars. Corotation has two opposing effects: 1) the caustic enhancement of the trailing side (TS) by aberration and retardation (AR), which…

High Energy Astrophysical Phenomena · Physics 2015-05-14 J. Dyks , G. A. E. Wright , P. Demorest

We have carried out a study of the orthogonal polarisation mode behaviour as a function of frequency of 18 pulsars, using average pulsar data from the European Pulsar Network (EPN). Assuming that the radiation consists of two 100% polarised…

Astrophysics · Physics 2009-11-11 J. M. Smits , B. W. Stappers , R. T. Edwards , J. Kuijpers , R. Ramachandran

This work is a continuation of two previous papers of a series, in which we examined the pulse-width statistics of normal radio pulsars. In the first paper we compiled the largest ever database of pulsars with interpulses in their mean…

Astrophysics of Galaxies · Physics 2015-06-05 K. Maciesiak , J. Gil , G. Melikidze

New polarimetric observations of the Crab pulsar at frequencies between 1.4 and 8.4 GHz are presented. Additional pulse components discovered in earlier observations (Moffett & Hankins 1996, astro-ph/9604163) are found to have high levels…

Astrophysics · Physics 2009-10-31 D. A. Moffett , T. H. Hankins

We present the flux density measurements of the pulsars observed in the Meterwavelength single-pulse polarimetric emission survey. The average flux densities were estimated in 113 pulsars at two frequencies of 325 and 610 MHz using…

High Energy Astrophysical Phenomena · Physics 2021-08-25 Rahul Basu , Dipanjan Mitra , George I. Melikidze

The curvature radiation is applied to the explain the circular polarization of FRBs. Significant circular polarization is reported in both apparently non-repeating and repeating FRBs. Curvature radiation can produce significant circular…

High Energy Astrophysical Phenomena · Physics 2022-06-29 H. Tong , H. G. Wang

Because of the peculiar coupling of spatial and spin degrees of freedom effected by the Rashba spin-orbit interaction, lateral confinement of a two dimensional electronic system leads to a finite transverse spin polarization near the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 S. Chesi , G. F. Giuliani

The new generations of multiwavelength radioheliographs with high spatial resolution will employ microwave imaging spectropolarimetry to recover flare topology and plasma parameters in the flare sources and along the wave propagation paths.…

Solar and Stellar Astrophysics · Physics 2017-09-27 A. Altyntsev , N. Meshalkina , I. Myshyakov , V. Pal`shin , G. Fleishman

We have observed the optical pulse profile of PSR B0656+14 in 10 phase bins at a high signal-to-noise ratio, and have measured the linear polarization profile over 30% of the pulsar period with some significance. The pulse profile is…

Astrophysics · Physics 2009-11-10 B. Kern , C. Martin , B. Mazin , J. P. Halpern

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…

Astrophysics · Physics 2009-11-13 Simon Johnston , Aris Karastergiou , Dipanjan Mitra , Yashwant Gupta

We present circular polarization results from a 5 GHz survey of the parsec-scale polarization properties of 40 AGN made with the VLBA. We find 11 circular polarization detections at the 3 sigma level or higher. This nearly quadruples the…

Astrophysics · Physics 2009-11-06 Daniel C. Homan , Joanne M. Attridge , John F. C. Wardle

We present polarization observations of the radio emitting magnetar AXP J1810-197. Using simultaneous multi-frequency observations performed at 1.4, 4.9 and 8.4 GHz, we obtained polarization information for single pulses and the average…

Astrophysics · Physics 2008-11-26 M. Kramer , B. W. Stappers , A. Jessner , A. G. Lyne , C. A. Jordan

The diverse polarization properties in pulsars are in conflict with applying a unique emission mechanism to the population. The polarization position angle (PPA) traverse in most pulsars shows a S-shaped curve that can be interpreted using…

High Energy Astrophysical Phenomena · Physics 2023-03-01 Dipanjan Mitra , George I. Melikidze , Rahul Basu
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