ASCA observations of G18.95-1.1.

Details ASCA observations of G18.95-1.1. ASCA observations of G18.95-1.1.

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999head....4.0804h&link_type=abstract

American Astronomical Society, HEAD meeting #4, #08.04; Bulletin of the American Astronomical Society, Vol. 31, p.703

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the ASCA study of the Supernova Remnant (SNR) G18.95-1.1 as part of an ongoing study on composite SNRs. A radio map of G18.95-1.1 obtained by Furst, Reich & Aschenbach (1997) shows a distinct central bar, polarized with a flat spectral index (0.22+/-0.07) surrounded by a shell of diffuse emission. This remnant was observed by the ROSAT PSPC and presents a spectrum which cannot be fitted by a single temperature collisional-plasma model. We have analyzed the ASCA data of this remnant and we find that there is no conclusive proof of high-energy emission from the remnant. We examine different theories which could explain G18.95-1.1 centrally peaked morphology and present our conclusions.

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