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The W75 — Cygnus - X IRAS loop:- OB - ‘Bubble’ or SNR?

Published online by Cambridge University Press:  03 August 2017

D. Ward-Thompson  and
E. I. Robson
D. Ward-Thompson
Affiliation:
School of Physics & Astronomy, Lancashire Polytechnic, Preston, UK
E. I. Robson
Affiliation:
School of Physics & Astronomy, Lancashire Polytechnic, Preston, UK

Abstract

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IRAS Calibrated Raw Detector Data (CRDD) are presented of a part of the Cygnus-X region, incorporating W75, DR21 and W75N, and a previously unknown loop of dust emission is observed. This loop is interpreted as a spherical shell-like shock front, and two alternative explanations for its origin are explored — a wind-blown bubble around an OB association, and an old supernova remnant. The arguments for each are outlined, and it is deduced that there are insufficient OB stars old enough to have formed the loop by combined stellar wind action, although a SNR appears consistent with the data.

Type
Poster Sessions
Information
Symposium - International Astronomical Union , Volume 147: Fragmentation of Molecular Clouds and Star Formation , 1991 , pp. 511 - 512
Copyright
Copyright © Kluwer 1991 

References

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