2003A&A...401..197P


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET03:29:44

2003A&A...401..197P - Astronomy and Astrophysics, volume 401, 197-203 (2003/4-1)

XMM-Newton spectral analysis of the Pulsar Wind Nebula within the composite SNR SNR 000.9+00.1.

PORQUET D., DECOURCHELLE A. and WARWICK R.S.

Abstract (from CDS):

We present a study of the composite supernova remnant G0.9+0.1 based on observations by XMM-Newton. The EPIC spectrum shows diffuse X-ray emission from the region corresponding to the radio shell. The X-ray spectrum of the whole Pulsar Wind Nebula is well fitted by an absorbed power-law model with a photon index Γ∼1.9 and a 2-10keV luminosity of about 6.5x1034d102erg/s (d10 is the distance in units of 10kpc). However, there is a clear softening of the X-ray spectrum with distance from the core, which is most probably related to the finite lifetime of the synchrotron emitting electrons. This is fully consistent with the plerionic interpretation of the Pulsar Wind Nebula, in which an embedded pulsar injects energetic electrons into its surrounding region. At smaller scales, the eastern part of the arc-like feature, which was first revealed by Chandra observations, shows indications of a hard X-ray spectrum with a corresponding small photon index (Γ=1.0±0.7), while the western part presents a significantly softer spectrum (Γ=3.2±0.7). A possible explanation for this feature is fast rotation and subsequent Doppler boosting of electrons: the eastern part of the torus has a velocity component pointing towards the observer, while the western part has a velocity component in the opposite direction pointing away from the observer.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - ISM: individual objects: G0.9+0.1 - X-rays: ISM

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 SNR G130.7+03.1 SNR 02 05 37.0 +64 49 42           ~ 573 4
2 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4864 1
3 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5702 4
4 IC 443 SNR 06 18 02.7 +22 39 36     10.11     ~ 1120 1
5 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1135 2
6 V* BN Sgr Al* 17 47 05.3857989148 -28 08 59.482990265   10.02 9.42     F3V 37 0
7 2MASS J17471785-2810257 IR 17 47 17.85 -28 10 25.7           ~ 1 0
8 2MASS J17471785-2810256 IR 17 47 17.85 -28 10 25.7           ~ 2 0
9 SNR G000.9+00.1 SNR 17 47.3 -28 09           ~ 173 1
10 SNR G021.5-00.9 SNR 18 33 33.612 -10 34 07.69           ~ 401 1
11 SNR G054.1+00.3 SNR 19 30 31 +18 52.0           ~ 196 1

    Equat.    Gal    SGal    Ecl

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2021.03.02-03:29:44

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