Results 111 to 120 of about 8,336 (234)

The Deepest Radio Study of the Pulsar Wind Nebula G21.5-0.9: Still No Evidence for the Supernova Shell [PDF]

, 2010
We report on sensitive new 1.4-GHz VLA radio observations of the pulsar wind nebula G21.5-0.9, powered by PSR J1833-1034, and its environs. Our observations were targeted at searching for the radio counterpart of the shell-like structure seen surrounding
Altenhoff, Bandiera, Becker, Becker, Benjamin, Bietenholz, Bietenholz, Bocchino, Bock, Brogan, Brogan, C. Brogan, Camilo, Chevalier, Davelaar, Frail, Fürst, Gaensler, Giacani, Gotthelf, Green, Green, Green, Gupta, H. Matheson, Jun, Kassim, M. F. Bietenholz, Matheson, Matheson, Morsi, N. Bartel, Reich, Reich, Reynolds, Reynolds, S. Safi-Harb, Safi-Harb, Salter, Slane, Stil, Tammann, Warwick, Wilson, Yamauchi   +44 more
core   +1 more source

Modelling the evolution of pulsar wind nebulae

Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, 2013
Using numerical models, the influence of factors such as agnetic field strength on the evolution of pulsar wind ebulae can be determined. This includes the morphological evolution as well as the evolution of the type of light emitted and the corresponding intensity.
openaire   +4 more sources

A Catalog of Pulsar X-Ray Filaments

The Astrophysical Journal
We present the first Chandra X-ray Observatory (CXO) catalog of “pulsar X-ray filaments,” or “misaligned outflows.” These are linear, synchrotron-radiating features powered by ultrarelativistic electrons and positrons that escape from bow shock pulsars ...
Jack T. Dinsmore, Roger W. Romani
doaj   +1 more source

First Detection of Polarization in X-Rays for PSR B0540-69 and Its Nebula

The Astrophysical Journal
We report on X-ray polarization measurements of the extragalactic Crab-like PSR B0540-69 and its Pulsar Wind Nebula (PWN) in the Large Magellanic Cloud, using a ∼850 ks Imaging X-ray Polarimetry Explorer (IXPE) exposure. The PWN is unresolved by IXPE. No
Fei Xie, Josephine Wong, Fabio La Monaca, Roger W. Romani, Jeremy Heyl, Philip Kaaret, Alessandro Di Marco, Niccolò Bucciantini, Kuan Liu, Chi-Yung Ng, Niccolò Di Lalla, Martin C. Weisskopf, Enrico Costa, Paolo Soffitta, Fabio Muleri, Matteo Bachetti, Maura Pilia, John Rankin, Sergio Fabiani, Iván Agudo, Lucio A. Antonelli, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Immacolata Donnarumma, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, 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, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, Stephen L. O’Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Andrea Possenti, Juri Poutanen, Simonetta Puccetti, Brian D. Ramsey, Ajay Ratheesh, Oliver J. Roberts, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Kinwah Wu, Silvia Zane, IXPE Collaboration, Zorawar Wadiasingh, Wynn C. G. Ho, Alice K. Harding, Keith C. Gendreau, Zaven Arzoumanian   +103 more
doaj   +1 more source

MHD models of Pulsar Wind Nebulae [PDF]

, 2010
Pulsar Wind Nebulae (PWNe) are bubbles or relativistic plasma that form when the pulsar wind is confined by the SNR or the ISM. Recent observations have shown a richness of emission features that has driven a renewed interest in the theoretical modeling of these objects.
openaire   +3 more sources

The Vela Pulsar and its Synchrotron Nebula

, 2001
(Abridged) We present high-resolution Chandra X-ray observations of PSR B0833-45, the 89 ms pulsar associated with the Vela supernova remnant. We have acquired two observations separated by one month to search for changes in the pulsar and its ...
Alpar A., Arons J., Aschenbach B., Bailes M., Caraveo P. A., D. J. Helfand, DeLuca A., E. V. Gotthelf, Gurkan M. A., J. P. Halpern, Kennel C. F., Leahy D. A., Lu F. J., Lyne A. G., Manchester R. N., Markwardt C. B., Milne D. K., Radhakrishnan V., Rees M. J., Reichley P. E.   +19 more
core   +1 more source

Lepton Acceleration in Pulsar Wind Nebulae [PDF]

, 2010
Pulsar Wind Nebulae (PWNe) act as calorimeters for the relativistic pair winds emanating from within the pulsar light cylinder. Their radiative dissipation in various wavebands is significantly different from that of their pulsar central engines: the broadband spectra of PWNe possess characteristics distinct from those of pulsars, thereby demanding a ...
openaire   +3 more sources

Optical observations of PSR J2021+3651 in the Dragonfly Nebula with the GTC

, 2015
PSR J2021+3651 is a 17 kyr old rotation powered pulsar detected in the radio, X-rays, and $\gamma$-rays. It powers a torus-like pulsar wind nebula with jets, dubbed the Dragonfly, which is very similar to that of the Vela pulsar.
Cabrera-Lavers, Antonio, Danilenko, Andrey, Durant, Martin, Kargaltsev, Oleg, Kirichenko, Aida, Pavlov, George, Ryspaeva, Elizaveta, Shibanov, Yuriy, Shternin, Peter, Zyuzin, Dima   +9 more
core   +1 more source

Investigating the Anticorrelation between Photon Index and Flux of the Crab Using RXTE and NuSTAR

The Astrophysical Journal
We present a systematic study of the recently reported anticorrelation between X-ray flux and photon index (Γ) in the Crab Nebula, using archival Rossi X-Ray Timing Explorer (RXTE) Proportional Counter Array (3–50 keV), RXTE High Energy X-ray Timing ...
Debjit Chatterjee, Hsiang-Kuang Chang, Dipak Debnath, Koothodil Abhijith Augustine, Tzu-Hsuan Lin   +4 more
doaj   +1 more source

LHAASO and Galactic cosmic rays. [PDF]

Innovation (Camb), 2022
Yang R.
europepmc   +1 more source