Chandra Observations of A Galactic Supernova Remnant Vela Jr.: A New Sample of Thin Filaments Emitting Synchrotron X-Rays

Abstract

A galactic supernova remnant (SNR) Vela Jr. (RX J0852.0$-$4622, G266.6$-$1.2) shows sharp filamentary structure on the north-western edge of the remnant in the hard X-ray band. The filaments are so smooth and located on the most outer side of the remnant. We measured the averaged scale width of the filaments ($w_u$ and $w_d$) with excellent spatial resolution of {\it Chandra}, which are in the order of the size of the point spread function of {\it Chandra} on the upstream side and 49.5 (36.0--88.8) arcsec on the downstream side, respectively. The spectra of the filaments are very hard and have no line-like structure, and were well reproduced with an absorbed power-law model with $\Gamma =$2.67 (2.55--2.77), or a {\tt SRCUT} model with ${\nu }_{rolloff}$ = 4.3 (3.4--5.3)$\times 10^{16}$ Hz under the assumption of $p=0.3$. These results imply that the hard X-rays are synchrotron radiation emitted by accelerated electrons, as mentioned previously. Using a correlation between a function $\mathcal{B}\equiv {\nu }_{rolloff}/w_d^2$ and the SNR age, we estimated the distance and the age of Vela Jr.: the estimated distance and age are 0.33 (0.26--0.50) kpc and 660 (420--1400) years, respectively. These results are consistent with previous reports, implying that $\mathcal{B}$--age relation may be a useful tool to estimate the distance and the age of synchrotron X-ray emitting SNRs.

arXiv comment19 pages, 8 figures, ApJ, in press

References in corpus (29)

• An Overview of the Performance and Scientific Results from the Chandra X-Ray Observatory (CXO)
• A New $\Sigma -D$ Relation and Its Application to the Galactic Supernova Remnant Distribution
• On the magnetic fields and particle acceleration in Cas A
• Fine Structures of Shock of SN 1006 with the Chandra Observation
• X-Ray Emission From the Shell-Type SNR G347.3-0.5
• A Spatial and Spectral Study of Nonthermal Filaments in Historical Supernova Remnants: Observational Results with Chandra
• Discovery of Non Thermal X-Rays from the Northwest Shell of the New SNR RX J1713.7-3946: The Second SN1006 ?
• RXJ 0852.0-0462: Another Nonthermal Shell-Type SNR (G266.2-1.2)
• Detection of TeV gamma-ray Emission from the Shell-Type Supernova Remnant RX J0852.0-4622 with H.E.S.S
• The Distance to the Vela Supernova Remnant
• XMM-Newton observations of the supernova remnant RX J1713.7-3946 and its central source
• A High-Resolution Study of Nonthermal Radio and X-Ray Emission from SNR G347.3-0.5
• Chandra X-ray Observatory Study of the Orion Nebula Cluster and BN/KL Region
• Fine-structure in the nonthermal X-ray emission of SNR RX J1713.7-3946 revealed by Chandra
• X-Ray Synchrotron Emitting Fe-Rich Ejecta in SNR RCW 86
• Direct evidence of efficient cosmic ray acceleration and magnetic field amplification in Cassiopeia A
• Thermal and Nonthermal X-Ray Emission in SNR RCW 86
• The compact central source in the RX J0852-4622 supernova remnant
• Detection of Gamma-rays around 1TeV from RX J0852.0-4622 by CANGAROO-II
• Diffuse Hard X-ray Sources Discovered with the ASCA Galactic Plane Survey
• Discovery of Non-Thermal X-Rays from the Shell of RCW86
• Overabundance of Calcium in the young SNR RX J0852$-$4622: evidence of over-production of ${}^{44}$Ti
• Constraints On the Diffusive Shock Acceleration From the Nonthermal X-ray Thin Shells In SN1006 NE Rim
• A Diffuse X-Ray Source, AX J1843.8-0352: Association with the Radio Complex G28.6-0.1 and Identification of a New Supernova Remnant
• XMM-Newton observations of the supernova remnant RX J0852.0-4622/GRO J0852-4642
• Chandra Observations of a Non-Thermal Supernova Remnant Candidate AX J1843.8-0352 and its Surroundings
• XMM-Newton Observations of G32.45+0.1and G38.55+0.0: diffuse hard X-ray sources found with the ASCA Galactic Plane Survey
• Footprints of the Newly-Discovered Vela Supernova in Antarctic Ice Cores?
• G337.2+0.1: a new X-ray supernova remnant?

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