English
Related papers

Related papers: The Vela Pulsar in the Near-Infrared

200 papers

The Vela and Geminga pulsars are rotation powered neutron stars, which have been identified in various spectral domains, from the near-infrared to hard $\gamma$-rays. In the near-infrared they exhibit tentative emission excesses, as…

Solar and Stellar Astrophysics · Physics 2011-11-16 Andrey A. Danilenko , Dmitry A. Zyuzin , Yuri A. Shibanov , Sergey V. Zharikov

Our knowledge of the optical spectra of Isolated Neutron Stars (INSs) is limited by their intrinsic faintness. Among the fourteen optically identified INSs, medium resolution spectra have been obtained only for a handful of objects. No…

Astrophysics · Physics 2011-03-28 R. P. Mignani , S. Zharikov , P. A. Caraveo

We report the first high spatial resolution near-infrared imaging of the Vela pulsar in the $K_s$ band obtained with the new adaptive optics system recently mounted on the Gemini-South telescope. For the first time, we have firmly detected…

Solar and Stellar Astrophysics · Physics 2013-09-18 Dima Zyuzin , Yury Shibanov , Andrey Danilenko , Ronald E. Mennickent , Sergey Zharikov

(Abridged) PSR J1357-6429 is a Vela-like radio pulsar that has been recently detected in X-rays and gamma-rays. It powers a compact tail-like X-ray pulsar wind nebula and X-ray-radio plerion associated with an extended TeV source HESS…

Solar and Stellar Astrophysics · Physics 2012-04-26 A. Danilenko , A. Kirichenko , R. E. Mennickent , G. Pavlov , Yu. Shibanov , S. Zharikov , D. Zyuzin

(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…

Astrophysics · Physics 2009-10-31 D. J. Helfand , E. V. Gotthelf , J. P. Halpern

We present results of more than 13 years of Fermi-LAT data analysis for the Vela pulsar from 60 MeV to 100 GeV and its pulsar wind nebula (PWN), Vela-X, for E > 1 GeV in the off-pulse phases. We find the Vela-X PWN can be best characterized…

High Energy Astrophysical Phenomena · Physics 2025-11-11 Alexander Lange , J. Eagle , O. Kargaltsev , Lucien Kuiper , Jeremy Hare

Multicolor photometry of the Vela pulsar (PSR B0833-45), updated by recent HST/WFPC2 observations obtained in the 555W, 675W and 814W filters, is presented. The available data provide the best characterization so far of the pulsar spectral…

Astrophysics · Physics 2009-11-06 R. P. Mignani , P. A. Caraveo

The nebula powered by the Vela pulsar is one of the best examples of an evolved pulsar wind nebula, allowing to access the particle injection history and the interaction with the supernova ejecta. We report on the INTEGRAL discovery of…

The young radio pulsar J1124-5916 is associated with a Cas A like supernova remnant G292.0+1.8. It powers a compact torus-like pulsar wind nebula with a jet first detected in X-rays and then identified in the optical and mid-infrared. We…

Solar and Stellar Astrophysics · Physics 2015-06-15 Sergey V. Zharikov , Dmitry A. Zyuzin , Yuri A. Shibanov , Ronald E. Mennickent

We present results from four observations of the accreting X-ray pulsar Vela X-1 with RXTE in 1996 February. The light curves show strong pulse to pulse variations, while the average pulse profiles are quite stable, similar to previous…

The pulsar wind nebula (PWN) associated with the Vela pulsar is a bright source in the radio, X-ray and gamma-ray bands, but not in the optical. This source is very near, lying at a distance of 290 pc, as inferred from the radio and optical…

High Energy Astrophysical Phenomena · Physics 2015-01-05 T. E. Marubini , R. R. Sefako , C. Venter , O. C. de Jager

Fallback disks are expected to form around young neutron stars. The presence of these disks can be revealed by their blackbody spectrum in the infrared, optical and UV bands. We present a re-reduction of the archival optical and infrared…

High Energy Astrophysical Phenomena · Physics 2014-11-10 Gökçe Özsükan , K. Yavuz Ekşi , Valeri Hambaryan , Ralph Neuhäuser , Markus M. Hohle , Christian Ginski , Klaus Werner

Observations using the Australia Telescope Compact Array at a wavelength of 6 cm have uncovered the radio counterpart to the compact X-ray nebula surrounding the Vela pulsar. Two lobes were found oriented about the spin axis of the pulsar,…

Astrophysics · Physics 2007-05-23 Dion Lewis , Richard Dodson , David McConnell , Avinash Deshpande

We report on an observation of the Vela-like pulsar B1823-13 and its synchrotron nebula with Chandra.The pulsar's spectrum fits a power-law model with a photon index Gamma_PSR=2.4 for the plausible hydrogen column density n_H=10^{22}…

Astrophysics · Physics 2009-11-13 G. G. Pavlov , O. Kargaltsev , W. F. Brisken

We have discovered that the radio nebula surrounding the Vela pulsar covers a much wider extent than previously reported, with two lobes to the North and South of the pulsar. Indications of this object have been reported previously, but its…

Astrophysics · Physics 2008-11-26 R. Dodson , D. Lewis , D. McConnell , A. A. Deshpande

We describe time-tagged observations of the Vela pulsar (PSR B0833-45) with the HST STIS MAMA-UV detectors. Using an optimal extraction technique, we obtain a NUV light curve and crude FUV phase-resolved spectra. The pulse is dominated by…

Astrophysics · Physics 2009-11-10 Roger W. Romani , Oleg Kargaltsev , George G. Pavlov

G292.0+1.8 is a Cas A-like supernova remnant that contains the young pulsar PSR J1124-5916 powering a compact torus-like pulsar wind nebula visible in X-rays. A likely counterpart to the nebula has been detected in the optical VRI bands. To…

High Energy Astrophysical Phenomena · Physics 2010-10-11 D. A. Zyuzin , A. A. Danilenko , S. V. Zharikov , Yu. A. Shibanov

We report on our analysis of a 300 ks observation of the Vela pulsar with the Rossi X-Ray Timing Explorer (RXTE). The double-peaked, pulsed emission at 2 - 30 keV, which we had previously detected during a 93 ks observation, is confirmed…

Astrophysics · Physics 2007-05-23 Alice K Harding , Mark S. Strickman , Carl Gwinn , P. McCulloch , D. Moffet

We report the results of the spectral analysis of two observations of the Vela pulsar with the Chandra X-ray observatory. The spectrum of the pulsar does not show statistically significant spectral lines in the observed 0.25-8.0 keV band.…

Astrophysics · Physics 2016-08-30 G. G. Pavlov , V. E Zavlin , D. Sanwal , V. Burwitz , G. Garmire

We present the analysis of 200-ks NuSTAR observation of the Vela pulsar and the pulsar wind nebula (PWN). The phase-resolved spectra corresponding to two main peaks in the folded pulse profile differ significantly. The spectrum of Peak 1 is…

High Energy Astrophysical Phenomena · Physics 2024-09-10 Oleg Kargaltsev , Jeremy Hare , Alexander Lange
‹ Prev 1 2 3 10 Next ›