SIMBAD references

2008MNRAS.383.1175P - Mon. Not. R. Astron. Soc., 383, 1175-1194 (2008/January-3)

Long-slit optical spectroscopy of Large Magellanic Cloud radio supernova remnants.


Abstract (from CDS):

We use long-slit spectra from shocked regions of radio supernova remnants (SNRs) in the Large Magellanic Cloud to estimate electron density and derive an average `metal' abundance of 10–3.9 based on diagnostic line ratio plots. These simple diagnostics may be especially useful to determine abundances in more distant galaxies. Abundance values listed in this paper, in units of log(x/H)+12, for nitrogen (7.3) and oxygen (8.2) agree with those reported in the literature. These estimates - which we assume to be dominated by the interstellar medium with little evolutionary interference - were obtained from spectral analysis of ∼50 per cent of known radio SNRs using the double beam spectrograph on the 2.3-m Advanced Technology Telescope at Siding Spring Observatory in Australia and the Cassegrain spectrograph on the 1.9-m Radcliffe telescope at the South African Astronomical Observatory. We also found optical evidence of shocked regions near 2 of 20 radio SNR candidates (J053620-693136 and J053731-662740), strengthening their identification as true remnants.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): supernova remnants - Magellanic Clouds

Nomenclature: Table 1: SNR JHHMMSS+DDMMSS N=27.

Simbad objects: 49

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