Computer Science
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001tysc.confe.144g&link_type=abstract
Two Years of Science with Chandra, Abstracts from the Symposium held in Washington, DC, 5-7 September, 2001, meeting abstract.
Computer Science
Supernovae, Supernova Remnants And Isolated Neutron Stars
Scientific paper
We present the first X-ray observation of the faint Galactic composite supernova remnant G16.7+0.1, obtained with the XMM-Newton Observatory. G16.7+0.1 was discoved during a systematic program to map small-diameter remnants with the VLA and contains the faintest known radio-selected synchrotron nebula. In the X-rays, we have discovered significant extended X-ray emission whose morphology is consistent with a pulsar wind nebula (PWN) and supernova remnant shell suggested at radio wavelengths. The PWN is detected with an XMM EPIC-MOS camera count rate of 0.045 cps, which, depending on spectral model, implies a luminosity Lx ~4 × 1033 (D / 5 kpc)2 erg s-1, slightly larger than the Vela synchrotron nebula for a distance of 5 kpc. The X-ray to radio core flux ratio is then ~10, intermediate between X-ray luminous synchrotron components such as those in the 50 ms LMC pulsar and Kes 75 (as well as the Crab), and the X-ray faint nebulae such as 3C58. This evidence strongly suggests an undiscovered pulsar; we report on our X-ray and current deep radio searches for the putative pulsar powering the PWN.
Gotthelf Eric Van
Helfand David J.
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