NOAO >   Observing Info >   Approved Programs >   2009B-0493

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Proposal Information for 2009B-0493


PI: Armin Rest, Harvard University, arest@physics.harvard.edu
Address: Department of Physics, 17 Oxford Street, Cambridge, MA 02138, USA

CoI: Andy Becker, University of Washington
CoI: Marcel Bergmann, Gentleman Astronomer, Phoenix, AZ
CoI: Stephane Blondin, Harvard/CfA
CoI: Peter Challis, Harvard/CfA
CoI: Alejandro Clocchiatti, PUC
CoI: Kem Cook, NOAO and LLNL
CoI: Guillermo Damke, CTIO
CoI: Ryan Foley, Harvard/CfA
CoI: Arti Garg, Harvard/CfA
CoI: Mark E. Huber, LLNL
CoI: Tom Matheson, NOAO
CoI: Dante Minniti, PUC
CoI: Knut Olsen, NOAO
CoI: J.L. Prieto, OSU
CoI: Brendan Sinnott, McMaster University
CoI: R. Chris Smith, NOAO
CoI: Nicholas Suntzeff, Texas A&M
CoI: Doug Welch, McMaster University
CoI: Michael Wood-Vasey, Harvard/CfA

Title: Echoes of Historical Supernovae in the Milky Way Galaxy

Abstract: Using the techniques pioneered by our group, we propose to discover the first echoes around the historical Galactic supernovae SN1181 (3C 58) and SN1054 (Crab), and to locate additional echo complexes around SN1680 (Cas A) and SN1572 (Tycho). To date we have found echoes from the Cas A supernova of 1680 and the Tycho supernova of 1572 \citeRest08b which have led to the first accurate classification for Cas A. With the first discovery echoes for 3C 58 and SN1054 we will be able to obtain precise spectroscopic classifications and improve on the less certain radio/X-ray classifications of the supernova remnants. For the Cas A and Tycho SNe, we will find new echo complexes which will allow us to probe different orientation directions onto the supernova explosion to determine the uniformity of the spectral properties of what are most likely asymmetric explosions. The positions and distances to the echoes will provide accurate distances to the supernova and also map out the dust structures near to the line of sight to the supernovae.


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