GB045

SN1986J The evolution of its complex shell and a search for a pulsar nebula

Abstract

We propose 2, 6 and 18 cm observations to make a spectral index map of the bizarre SN1986J, and identify the component with an inverted-spectrum component and locate it relative to the geometric center of the shell. This is the best chance so far of finding a pulsar nebula lurking in the debris of the supernova explosion. We will also compare the 6 cm map with previous maps. With increasing relative resolution, the image will expose more clearly the dynamical evolution of the shell, the hot spots, and protrusions, and possibly anisotropic expansion. Perhaps we will witness the piercing and fragmentation of the decelerating shock front by new protrusions or jets that could be linked to the pulsar in the center.

**Investigators**
Name	Other *	Institution	Email	Phone
Norbert Bartel	PI	York University	bartel@yorku.ca	416 736-5424
M. F. Bictenholz		York University
Michael Rupen		NRAO - NM	mrupen@aoc.nrao.edu	505 835 7248

* PI = Principal Investigator; T = Thesis observations; S = Student

Front Ends

Gregorian L(1.15 to 1.73 GHz)
Gregorian C(3.95 to 5.85 GHz)
Gregorian Ku  U(12.4 to 15.4 GHz)

Back Ends

VLBA recorder and DAR

Type of Observing

Very Long Baseline Interferometry

Switching Type

Allocated time: hours.

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