NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Differential imaging of forbidden Fe X in IC 443This paper presents images of two areas of the supernova remnant IC 443 showing emission from the forbidden 6374 A red coronal line taken with an emission-line differential imaging camera. The areas are in the vicinity of strong soft X-ray emission as observed with the Einstein Observatory. The forbidden Fe X emission is patchy on the scale of seconds of arc. For the brightest emission regions, an electron density of approximately 60/cu cm and gas pressures of 0.l7 x 10 to the 8th/cu cm K are found. These estimates are speculative because of the large correction for interstellar dust, and the assumption of sheetlike structure. Although this region has the highest average surface brightness, no direct correlation is found between the X-ray and forbidden Fe X knots. The implied physical conditions in the region suggest that the forbidden Fe X knots are being evaporated.
Document ID
19890029303
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Brown, Larry W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Woodgate, Bruce E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Petre, Robert
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
November 15, 1988
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 334
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
89A16674
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available