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Discovery of 35 New Supernova Remnants in the Inner Galaxy | | C. L. Brogan
; J. D. Gelfand
; B. M. Gaensler
; N. E. Kassim
; T. J. Lazio
; | | Date: |
21 Jan 2006 | | Abstract: | We report the discovery of up to 35 new supernova remnants (SNRs) from a 42 arcsec resolution 90cm multi-configuration Very Large Array survey of the Galactic plane covering 4.5 deg< l <22.0 deg and b < 1.25 deg. Archival 20cm, 11cm, and 8 micron data have also been used to identify the SNRs and constrain their properties. The 90cm image is sensitive to SNRs with diameters 2.5 arcmin to 50 arcmin and down to a surface brightness limit of about 10^{-21} W m^{-2} Hz^{-1} sr^{-1}. This survey has nearly tripled the number of SNRs known in this part of the Galaxy, and represents an overall 15% increase in the total number of Galactic SNRs. These results suggest that further deep low frequency surveys of the inner Galaxy will solve the discrepancy between the expected number of Galactic SNRs and the significantly smaller number of currently known SNRs. | | Source: | arXiv, astro-ph/0601451 | | Services: | Forum | Review | PDF | Favorites | |
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