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PSR J0205+6449 is a young ({\approx} 5400 years), Crab-like pulsar detected in radio and at X and {\gamma}-ray energies and has the third largest spin-down flux among known rotation powered pulsars. It also powers a bright synchrotron…

High Energy Astrophysical Phenomena · Physics 2015-06-16 P. Moran , R. P. Mignani , S. Collins , A. de Luca , N. Rea , A. Shearer

We report on deep VLT observations of the fields of two nearby, isolated millisecond pulsars PSR J1744-1134 and PSR J1024-0719. Both objects are old neutron stars with characteristic age $\tau \ge 10^9$ yr and have relatively high spin-down…

Astrophysics · Physics 2011-05-23 F. K. Sutaria , A. Ray , A. Reisenegger , G. Hertling , H. Quintana , D. Minniti

Neutron stars (NSs) are compact objects that host the densest forms of matter in the observable universe, providing unique opportunities to study the behaviour of matter at extreme densities. While precision measurements of NS masses…

General Relativity and Quantum Cosmology · Physics 2025-12-18 Huanchen Hu , Paulo C. C. Freire

HESS J0852-463 is a TeV {\gamma}-ray source located in the Galactic plane. The region consists of a supernova remnant (SNR, RX J0852.0-4622) with a shell-like morphology, commonly referred to as Vela Junior, and a pulsar denoted PSR…

High Energy Astrophysical Phenomena · Physics 2026-02-17 F. Aharonian , H. Ashkar , M. Backes , R. Batzofin , Y. Becherini , D. Berge , K. Bernlöhr , M. Böttcher , C. Boisson , J. Bolmont , F. Brun , B. Bruno , C. Burger-Scheidlin , T. Bylund , S. Casanova , D. Cecchin Momesso , J. Celic , M. Cerruti , A. Chen , M. Chernyakova , J. O. Chibueze , O. Chibueze , B. Cornejo , G. Cotter , G. Cozzolongo , J. de Assis Scarpin , M. de Bony de Lavergne , M. de Naurois , E. de Oña Wilhelmi , A. G. Delgado Giler , J. Devin , A. Dmytriiev , K. Egberts , K. Egg , J. -P. Ernenwein , C. Escañuela Nieves , P. Fauverge , K. Feijen , M. D. Filipovic , G. Fontaine , S. Funk , S. Gabici , Y. A. Gallant , M. Genaro , J. F. Glicenstein , J. Glombitza , P. Goswami , M. -H. Grondin , L. Heckmann , B. Heß , W. Hofmann , T. L. Holch , M. Holler , D. Horns , M. Jamrozy , F. Jankowsky , A. Jardin-Blicq , I. Jaroschewski , D. Jimeno , I. Jung-Richardt , E. Kasai , K. Katarzyński , D. Kerszberg , B. Khélifi , W. Kluźniak , N. Komin , K. Kosack , D. Kostunin , R. G. Lang , S. Lazarević , A. Lemière , M. Lemoine-Goumard , J. -P. Lenain , P. Liniewicz , A. Luashvili , J. Mackey , D. Malyshev , D. Malyshev , V. Marandon , M. G. F. Mayer , A. Mehta , A. M. W. Mitchell , R. Moderski , L. Mohrmann , E. Moulin , J. Niemiec , P. O'Brien , L. Olivera-Nieto , M. O. Moghadam , S. Panny , M. Panter , R. D. Parsons , P. Pichard , T. Preis , G. Pühlhofer , M. Punch , A. Quirrenbach , A. Reimer , O. Reimer , I. Reis , Q. Remy , H. X. Ren , B. Reville , F. Rieger , G. Rowell , B. Rudak , K. Sabri , V. Sahakian , M. Sasaki , F. Schüssler , J. N. S. Shapopi , W. Si Said , Ł. Stawarz , R. Steenkamp , S. Steinmassl , T. Tanaka , A. M. Taylor , G. L. Taylor , R. Terrier , Y. Tian , M. Tsirou , T. Unbehaunz , C. van Eldik , M. Vecchi , C. Venter , J. Vink , V. Voitsekhovskyi , T. Wach , S. J. Wagner , A. Wierzcholska , M. Zacharias , A. Zech , W. Zhong , F. Acero , L. Giunti

Pulsar halos (also termed 'TeV halo') are a new class of $\gamma$-ray sources in Galaxy, which manifest as extended $\gamma$-ray emission around middle-age pulsars, as discovered around the Geminga pulsar, the Monogem pulsar and…

High Energy Astrophysical Phenomena · Physics 2024-02-01 Qi-Zuo Wu , Chao-Ming Li , Xuan-Han Liang , Chong Ge , Ruo-Yu Liu

With unparalleled rotational stability, millisecond pulsars (MSPs) serve as ideal laboratories for numerous astrophysical studies, many of which require precise knowledge of the distance and/or velocity of the MSP. Here, we present the…

Since it started observing the sky, the INTEGRAL satellite has discovered new categories of high mass X-ray binaries (HMXB) in our Galaxy. These observations raise important questions on the formation and evolution of these rare and…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Alexis Coleiro , Sylvain Chaty , Juan A. Zurita Heras , Farid Rahoui , John A. Tomsick

Using the CoRoT space based photometry of the O-type binary HD46149, stellar atmospheric effects related to rotation can be separated from pulsations, because they leave distinct signatures in the light curve. This offers the possibility of…

We present a new study of the X-ray spectral properties of the Crab Pulsar. The superb angular resolution of the Chandra X-ray Observatory enables distinguishing the pulsar from the surrounding nebulosity. Analysis of the spectrum as a…

We report on the first deep optical observations of two $\gamma$-ray pulsars, both among the very first discovered by the {\em Fermi} Gamma-ray Space Telescope. The two pulsars are the radio-loud PSR\, J1907+0602 in the TeV pulsar wind…

High Energy Astrophysical Phenomena · Physics 2016-09-21 R. P. Mignani , V. Testa , M. Marelli , A. De Luca , M. Pierbattista , M. Razzano , D. Salvetti , A. Belfiore , A. Shearer , P. Moran

Timing pulses of pulsars has proved to be a most powerful technique useful to a host of research areas in astronomy and physics. Importantly, the precision of this timing is not only affected by radiometer noise, but also by intrinsic pulse…

High Energy Astrophysical Phenomena · Physics 2015-05-28 K. Liu , J. P. W. Verbiest , M. Kramer , B. W. Stappers , W. van Straten , J. M. Cordes

The group of 7 thermally emitting and radio-quiet isolated neutron stars (INSs) discovered by ROSAT constitutes a nearby population which locally appears to be as numerous as that of the classical radio pulsars. So far, attempts to enlarge…

Astrophysics · Physics 2008-11-26 Adriana M. Pires , Christian Motch

The young PSR B0540-69 (B0540) in the LMC is the only pulsar (except the Crab pulsar) for which a near-UV spectrum has been obtained. However, the absolute flux and spectral index of previously published HST/FOS data are significantly…

Astrophysics · Physics 2009-11-10 N. I. Serafimovich , Yu. A. Shibanov , P. Lundqvist , J. Sollerman

We present a simple, unified model which accounts for properties of the X-ray emission from the three middle-aged pulsars PSR 1055-52, PSR 0656+14 and PSR 0630+18 (Geminga). The X-ray radiation from these objects is pulsed more strongly at…

Astrophysics · Physics 2009-11-06 Rosalba Perna , Jeremy Heyl , Lars Hernquist

Multiwavelength studies of the seven identified X-ray dim isolated neutron stars (XDINSs) offer a unique opportunity to investigate their surface thermal and magnetic structure and the matter-radiation interaction in presence of strong…

Astrophysics · Physics 2009-11-13 S. Zane , R. Mignani , R. Turolla , A. Treves , F. Haberl , C. Motch , L. Zampieri , M. Cropper

We present observations of 35 high spin-down energy radio pulsars using the MeerKAT telescope. Polarisation profiles and associated parameters are also presented. We derive the geometry for a selection of pulsars which show interpulse…

Neutron stars in close binary systems have the potential to spin up to millisecond periods due to the accretion of matter and angular momentum from their low-mass companions. In later stages of this process, they sometimes start to swing…

High Energy Astrophysical Phenomena · Physics 2026-05-22 S. V. Karpov , Artyom S. Tanashkin , G. M. Beskin , V. L. Plokhotnichenko , Y. A. Shibanov , D. A. Zyuzin

Observations of pulsar scintillation are among the few astrophysical probes of very small-scale ($\lesssim$ au) phenomena in the interstellar medium (ISM). In particular, characterization of scintillation arcs, including their curvature and…

High Energy Astrophysical Phenomena · Physics 2023-11-28 S. K. Ocker , J. M. Cordes , S. Chatterjee , D. R. Stinebring , T. Dolch , V. Pelgrims , J. W. McKee , C. Giannakopoulos , D. J. Reardon

The Cadmium Zinc Telluride Imager (CZTI) onboard AstroSat, an open detector above $\sim$100 keV, is a promising tool for the investigation of hard X-ray characteristics of $\gamma$-ray pulsars. A custom algorithm has been developed to…

High Energy Astrophysical Phenomena · Physics 2022-12-14 K. G. Anusree , Dipankar Bhattacharya , Varun Bhalerao , Akash Anumarlapudi

The X-ray dim isolated neutron stars (XDINSs) are peculiar pulsar-like objects, characterized by their very well Planck-like spectrum. In studying their spectral energy distributions, the optical/UV excess is a long standing problem.…

High Energy Astrophysical Phenomena · Physics 2011-12-12 H. Tong , R. X. Xu , L. M. Song