2001A&A...365L.218D


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST09:29:55

2001A&A...365L.218D - Astronomy and Astrophysics, volume 365, L218-224 (2001/1-1)

XMM-Newton observation of the Tycho supernova remnant.

DECOURCHELLE A., SAUVAGEOT J.L., AUDARD M., ASCHENBACH B., SEMBAY S., ROTHENFLUG R., BALLET J., STADLBAUER T. and WEST R.G.

Abstract (from CDS):

We present the observation of the Tycho supernova remnant obtained with the EPIC and RGS instruments onboard the XMM-Newton satellite. We compare images and azimuthally averaged radial profiles in emission lines from different elements (silicon and iron) and different transition lines of iron (Fe L and Fe K). While the FeXVII L line and SiXIII K line images are globally spatially coincident, the Fe K emission clearly peaks at a smaller radius, indicating a higher temperature toward the reverse shock. This is qualitatively the profile expected when the reverse shock, after travelling through the outer power-law density profile, has entered the central plateau of the ejecta. The high energy continuum map has an overall smooth distribution, with a similar extent to the radio emission. Its radial profile peaks further out than the lines emission. Brighter and harder continuum regions are observed with a rough bipolar symmetry in the eastern and western edges. The spectral analysis of the southeastern knots supports spatial variations of the relative abundance of silicon and iron, which implies an incomplete mixing of the silicon and iron layers.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - shock waves - supernovae: individual: Tycho - X-rays: ISM

Nomenclature: Table 1: [DSA2001] AN (Nos C1-C3), [DSA2001] A (Nos A-B).

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 [KKL2000] Filament A PoC 00 25 06.47 +64 07 04.0           ~ 2 0
2 SN 1572A SN* 00 25 21.5 +64 08 27           B8 1071 1
3 NAME Vela XYZ Rad 08 34.0 -45 50           ~ 1110 2
4 NAME Lupus SN SNR 15 02 22.1 -42 05 49           ~ 1207 1

    Equat.    Gal    SGal    Ecl

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2020.07.05-09:29:55

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