An Extensive Study of the Youngest Galactic Supernova Remnant G1.9+0.3

Details An Extensive Study of the Youngest Galactic Supernova Remnant G1.9+0.3 An Extensive Study of the Youngest Galactic Supernova Remnant G1.9+0.3

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2595r&link_type=abstract

Chandra proposal ID #10500327

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Scientific paper

We have recently discovered that the smallest Galactic supernova remnant (SNR) in angular size, G1.9+0.3, is the youngest (known) Galactic SNR, with an age of about 100 years. The X-ray spectrum is lineless, well described by synchrotron emission with the highest rolloff frequency ever reported for a SNR. We propose a 500 ks Large Project observation of this unique object, which fills in a gap between SN 1987A (21 yr old) and Cas A (about 330). We wish to study detailed morphology, to compare with the 3 other Galactic synchrotron- dominated SNRs; spectra, to search for spatial variations and thermal emission; and variability, using this study for the first epoch. This object has enormous potential for the study of SNR hydrodynamics and strong-shock physics.

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