NOAO >   Observing Info >   Approved Programs >   2017B-0147

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Program Information for 2017B-0147


PI: Sean Points, CTIO, spoints@ctio.noao.edu
Address: 950 N Cherry Ave, Tucson, AZ 85719 USA

CoI: Miroslav Filipovic, Western Sydney University
CoI: Kevin Grieve, Western Sydney University
CoI: Frank Haberl, Max Planck Institut fuer extraterrestrische Physik
CoI: Pierre Maggi, Service d'Astrophysique - CEA
CoI: Patrick Kavanagh, Dublin Institute for Advanced Studies
CoI: Manami Sasaki, National Tsing Hua University, Taiwan

Title: Optical Spectroscopy of Supernova Remnant Candidates in the Large Magellanic Cloud

Abstract: The Large Magellanic Cloud (LMC), with its low foreground absorption and relative proximity, offers the ideal laboratory for the study of a large sample of supernova remnants (SNRs). Its proximity allows for detailed spatial investigations of the remnants, and the accurately known distance enables the analysis of the energetics of each remnant. The immediate focus of this proposal is to use the Goodman spectrograph to obtain deep optical spectra of 13 SNR candidates in the LMC that we have identified using Magellanic Cloud Emission Line Survey (MCELS) images. These spectra will allow us to confirm the SNRs in the optical using the sii//ha line ratio diagnostic. If these objects are confirmed as SNRs we will have increased the sample of LMC SNRs by $sim 20%$. Using optical emission-line density and temperature diagnostics, we will determine the physical properties of the $sim 10^4$~K gas associated with these SNRs. In addition to the requested observations, we will use radio observations obtained by the Australia Telescope Compact Array (ATCA) and X-ray observations obtained with {it XMM- Newton/} to investigate the neutral and hot ($sim 10^6$~K) ionized gas phases of these remnants, respectively. Taken together, these observations will allow us to perform a detailed analysis of the physical conditions of these remnants and further our investigation of the global LMC SNR sample.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2017B):  SOAR/Goodman -- 2n on Dec 08 - Dec 09 2017


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2017B-0147

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