SUMMARY OF PROPOSAL 52096

DR. PATRICK OLSON SLANE
SLANE@CFA.HARVARD.EDU

SMITHSONIAN ASTROPHYSICAL OBSERVATORY
60 GARDEN STREET
CAMBRIDGE
MASSACHUSETTS/MIDDLESEX USA 02138
Tel: 617-495-7256 Fax: 617-495-7356
Medium: 4GBDAT
Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION

AN X-RAY STUDY OF THE SUPERNOVA REMNANT G347.5-0.5


ABSTRACT

G347.5-0.5 is a newly discovered supernova remnant from the ROSAT All-Sky Survey. While it is one of the brightest X-ray remnants known, spectral studies from a short pointed observation with the PSPC cannot differentiate between temperature scenarios which imply vastly different evolutionary states. The remnant may be relatively young with a very high temperature or it may be of moderate age but with very large absorption. We propose a 50 ks ASCA observation in raster mode to map the entire remnant and provide sufficiently rich spectra to permit a detailed study of the evolutionary characteristics of the SNR.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
DR. PAUL P. PLUCINSKYSAOUSA
DR. JOHN P. HUGHESSAOUSA
DR. OLAF VANCURASAOUSA

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)G347.5-0.5 NW
1
258.1000-39.5833 10 ksN
N
P
1.20000
1
2)G347.5-0.5 SW
1
258.2500-39.9000 10 ksN
N
P
1.30000
1
3)G347.5-0.5 NE
1
258.6458-39.5833 10 ksN
N
P
1.10000
1
4)G347.5-0.5 SE
1
258.9500-40.0333 20 ksN
N
P
0.40000
1

TARGET 1

USE COMPLIMENTARY CHIPS ON SIS DETECTORS. BRIGHT 2-CCD MODE IS ACCEPTABLE FOR MEDIUM BIT RATE. CONTACT PI FOR DETAILED POINTING ONCE SPACECRAFT ROLL IS DETERMINED.

TARGET 2

USE COMPLIMENTARY CHIPS ON SIS DETECTORS. BRIGHT 2-CCD MODE IS ACCEPTABLE FOR MEDIUM BIT RATE. CONTACT PI FOR DETAILED POINTING ONCE SPACECRAFT ROLL IS DETERMINED.

TARGET 3

USE COMPLIMENTARY CHIPS ON SIS DETECTORS. BRIGHT 2-CCD MODE IS ACCEPTABLE FOR MEDIUM BIT RATE. CONTACT PI FOR DETAILED POINTING ONCE SPACECRAFT ROLL IS DETERMINED.

TARGET 4

USE COMPLIMENTARY CHIPS ON SIS DETECTORS. BRIGHT 2-CCD MODE IS ACCEPTABLE FOR MEDIUM BIT RATE. CONTACT PI FOR DETAILED POINTING ONCE SPACECRAFT ROLL IS DETERMINED.