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G306.3-0.9: a newly discovered young galactic supernova remnant
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gehrels, Neil Murphy, Tara Gelbord, Jonathan Moss, Vanessa Reis, Rubens C. Siegel, Michael H. Gueltekin, Kayhan Robbins, William J. Reeves, Sarah Gaensler, B. M. Miller, Jon M. Reynolds, Mark T. Maitra, Dipankar Petre, Robert Kuin, Paul Loi, Syheh T. Kennea, Jamie A. |
| Copyright Year | 2013 |
| Description | We present X-ray and radio observations of the new Galactic supernova remnant (SNR) G306.3â0.9, recently discovered by Swift. Chandra imaging reveals a complex morphology, dominated by a bright shock. The X-ray spectrum is broadly consistent with a young SNR in the Sedov phase, implying an age of 2500 yr for a distance of 8 kpc, plausibly identifying this as one of the 20 youngest Galactic SNRs. Australia Telescope Compact Array imaging reveals a prominent ridge of radio emission that correlates with the X-ray emission. We find a flux density of â¼160 mJy at 1 GHz, which is the lowest radio flux recorded for a Galactic SNR to date. The remnant is also detected at 24μm, indicating the presence of irradiated warm dust. The data reveal no compelling evidence for the presence of a compact stellar remnant. |
| File Size | 222968 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140011439 |
| Archival Resource Key | ark:/13960/t6353ng49 |
| Language | English |
| Publisher Date | 2013-03-15 |
| Access Restriction | Open |
| Subject Keyword | Remnant Galactic Supernova Radio Emission Supernova Remnants Radio Spectroscopy Galactic Evolution Telescopes Imaging Techniques Abundance X Ray Spectra Australia Radio Observation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
