中文
相关论文

相关论文: NuSTAR observation of the Vela pulsar and its nebu…

200 篇论文

We present the first images of the pulsar wind nebula (PWN) MSH 15-52 in the hard X-ray band (>8 keV), as measured with the Nuclear Spectroscopic Telescope Array (NuSTAR). Overall, the morphology of the PWN as measured by NuSTAR in the 3-7…

We present in this paper the hard X-ray view of the pulsar wind nebula in G11.2-0.3 and its central pulsar PSR J1811-1925 as seen by NuSTAR. We complement the data with Chandra for a more complete picture and confirm the existence of a…

高能天体物理现象 · 物理学 2020-03-04 K. K. Madsen , C. L. Fryer , B. W. Grefenstette , L. A. Lopez , S. Reynolds , A. Zoglauer

Synchrotron X-ray emission from a pulsar wind nebula (PWN) is a sensitive probe of its magnetic field and high-energy particle population. Here we analyze contemporaneous NuSTAR and XMM-Newton observations of the PWN G54.1+0.3, powered by…

高能天体物理现象 · 物理学 2025-06-30 J. A. J. Alford , G. -B. Zhang , J. D. Gelfand

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…

高能天体物理现象 · 物理学 2025-11-11 Alexander Lange , J. Eagle , O. Kargaltsev , Lucien Kuiper , Jeremy Hare

We report on new NuSTAR and archival Chandra observations of the pulsar wind nebula (PWN) 3C 58. Using the X-ray data, we measure energy-dependent morphologies and spatially-resolved spectra of the PWN. We find that the PWN size becomes…

高能天体物理现象 · 物理学 2019-05-29 Hongjun An

We present preliminary results from a systematic spectral study of pulsars and their wind nebulae using the Chandra X-Ray Observatory. The superb spatial resolution of Chandra allows us to differentiate the compact object's spectrum from…

天体物理学 · 物理学 2007-05-23 E. V. Gotthelf , C. M. Olbert

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…

高能天体物理现象 · 物理学 2015-01-05 T. E. Marubini , R. R. Sefako , C. Venter , O. C. de Jager

We present NuSTAR high energy X-ray observations of the pulsar wind nebula (PWN)/supernova remnant G21.5-0.9. We detect integrated emission from the nebula up to ~40 keV, and resolve individual spatial features over a broad X-ray band for…

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}…

天体物理学 · 物理学 2009-11-13 G. G. Pavlov , O. Kargaltsev , W. F. Brisken

We present preliminary results from a systematic spectral study of pulsars and their wind nebulae using the Chandra X-Ray Observatory. The superb spatial resolution of Chandra allows us to differentiate the compact object's spectrum from…

天体物理学 · 物理学 2007-05-23 E. V. Gotthelf , C. M. Olbert

Pulse profiles probe the emission geometry of accreting X-ray pulsars, but their observed shapes may depend on instrumental response and observational setup. The pulsed fraction spectrum provides a compact spectro-timing observable that can…

The supernova remnant SNR 0540-69.3, twin of the Crab Nebula, offers an excellent opportunity to study the continuum emission from a young pulsar and pulsar-wind nebula (PWN). We present observations taken with the VLT instruments MUSE and…

高能天体物理现象 · 物理学 2025-08-21 L. Tenhu , J. Larsson , J. Sollerman , P. Lundqvist , J. Spyromilio , J. D. Lyman , G. Olofsson

We present a detailed analysis of broadband X-ray observations of the pulsar PSR J1420-6048 and its wind nebula (PWN) in the Kookaburra region with Chandra, XMM-Newton, and NuSTAR. Using the archival XMM-Newton and new NuSTAR data, we…

高能天体物理现象 · 物理学 2023-03-15 Jaegeun Park , Chanho Kim , Jooyun Woo , Hongjun An , Kaya Mori , Stephen P. Reynolds , Samar Safi-Harb

We present results from Chandra and XMM-Newton observations of the radio pulsar B1046-58. A high-resolution spatial analysis reveals an asymmetric pulsar wind nebula (PWN) ~6"x11" in size. The combined emission from the pulsar and its PWN…

天体物理学 · 物理学 2011-02-11 M. E. Gonzalez , V. M. Kaspi , M. J. Pivovaroff , B. M. Gaensler

We present deep Chandra observations of the pulsar wind nebula (PWN) powered by PSR J0007+7303 in the composite supernova remnant CTA 1. The merged ACIS image shows a $\sim20''$ jet extending south of the pulsar and bending toward the…

高能天体物理现象 · 物理学 2026-05-21 Seth Gagnon , Oleg Kargaltsev , Jason Alford , Joseph Gelfand , Alexander Lange

The observations of the pulsar-wind nebula (PWN) around the Vela pulsar with the Advanced CCD Imaging Spectrometer aboard the Chandra X-ray Observatory, taken on 2000 April 30 and November 30, reveal its complex morphology reminiscent of…

天体物理学 · 物理学 2009-11-06 G. G. Pavlov , O. Y. Kargaltsev , D. Sanwal , G. P. Garmire

We report on broadband X-ray properties of the Rabbit pulsar wind nebula (PWN) associated with the pulsar PSR J1418-6058 using archival Chandra and XMM-Newton data, and a new NuSTAR observation. NuSTAR data above 10 keV allowed us to detect…

高能天体物理现象 · 物理学 2023-03-15 Jaegeun Park , Chanho Kim , Jooyun Woo , Hongjun An , Kaya Mori , Stephen P. Reynolds , Samar Safi-Harb

We studied the PeVatron nature of the pulsar wind nebula G75.2+0.1 ("Dragonfly") as part of our NuSTAR observational campaign of energetic PWNe. The Dragonfly is spatially coincident with LHAASO J2018+3651 whose maximum photon energy is…

高能天体物理现象 · 物理学 2023-06-14 Jooyun Woo , Hongjun An , Joseph D. Gelfand , Charles J. Hailey , Kaya Mori , Reshmi Mukherjee , Samar Safi-Harb , Tea Temim

The observed radial profiles of the X-ray emission from Pulsar Wind Nebulae (PWNe) have been claimed to conflict with the standard one-dimensional (1-D) steady model. However, the 1-D model has not been tested to reproduce both the…

高能天体物理现象 · 物理学 2017-04-12 Wataru Ishizaki , Shuta J. Tanaka , Katsuaki Asano , Toshio Terasawa

We report on the X-ray emission properties of the pulsar PSR J1849$-$0001 and its wind nebula (PWN), as measured by Chandra, XMM-Newton, NICER, Swift, and NuSTAR. In the X-ray data, we detected the 38-ms pulsations of the pulsar up to…

高能天体物理现象 · 物理学 2023-11-22 Chanho Kim , Jaegeun Park , Jooyun Woo , Sarah Silverman , Hongjun An , Aya Bamba , Kaya Mori , Stephen P. Reynolds , Samar Safi-Harb
‹ 上一页 1 2 3 10 下一页 ›