Query : 2003A&A...398..195B

2003A&A...398..195B - Astronomy and Astrophysics, volume 398, 195-202 (2003/1-4)

BeppoSAX observation of the composite remnant G327.1-1.1.


Abstract (from CDS):

We report an X-ray study of the composite supernova remnant G327.1-1.1, with particular emphasis on its thermal emission. By virtue of a combined spatial and spectral analysis, we have been able to model the X-ray emission of the remnant as a sum of two components: a non-thermal component, due to the pulsar nebula and the pulsar itself, and a thermal component, of which we have analysed spectrum and morphology, after proper subtraction of the plerion. We discuss three possible interpretations of the thermal emission of G327.1-1.1: pure Sedov expansion, expansion through a inhomogeneous medium with evaporation from ISM clouds, and radiative expansion. On the light of our new data and interpretation, we have re-derived all the physical parameters of this SNR. In the framework of Sedov or radiative expansion we derive a longer age than previously estimated (1.1x104yr), thus not requiring a high velocity for the pulsar.

Abstract Copyright:

Journal keyword(s): acceleration of particles - radiation mechanisms: non-thermal - ISM: clouds - ISM: individual objects: - ISM: supernova remnants: G327.1-1.1

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
1 HD 141926 HXB 15 54 21.7677373488 -55 19 44.310748620 8.71 9.47 9.13 9.38   B2IIIn 76 0
2 SNR G327.2-01.0 SNR 15 54 30 -55 04.5           ~ 2 0
3 SNR G327.1-01.1 SNR 15 54 32.3 -55 03 44           ~ 99 1
4 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 968 2

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