NOAO >   Observing Info >   Approved Programs >   2017A-0375

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Program Information for 2017A-0375


PI: Armin Rest, STScI, arest@stsci.edu
Address: 3700 San Martin Dr., Baltimore, MD 21218 USA

CoI: Federica Bianco, NYU
CoI: Alejandro Clocchiatti, Pontificia Universidad Catolica de Chile
CoI: Ryan Foley, UC Santa Cruz
CoI: David James, U. of Washington
CoI: Charles Kilpatrick, UC Santa Cruz
CoI: Thomas Matheson, CTIO
CoI: Gautham Narayan, NOAO
CoI: Knut Olsen, NOAO
CoI: Sean Points, CTIO
CoI: Jose Luis Prieto, Universidad Diego Portales
CoI: R Chris Smith, CTIO
CoI: Nathan Smith, U. of Arizona
CoI: Nicholas B Suntzeff, Texas A&M U.
CoI: Doug Welch, McMaster U.
CoI: Alfredo Zenteno, NOAO

Title: Light Echoes of Galactic Explosions and Eruptions

Abstract: We propose to continue our search for the first light echoes (LEs) associated with historical Galactic supernovae and LBV outbursts: SN~1006, Kepler's SN, RCW~86, Crab Nebula, and P~Cygni. In addition, we will monitor known LEs from the Cas~A and Tycho supernovae in order to identify suitable LE candidates for 3D-spectroscopy and spectral time series with Keck and {it HST}. In previously granted NOAO time, we have discovered LEs of three ancient SNe in the LMC as well as from the historic SN events of Cas~A and Tycho [2, 3], which allowed their spectroscopic classification [6, 7, 10] and 3D spectroscopy [8, 9]. Most recently, we discovered light echoes of the mid-19th-century Great Eruption of $eta$~Carinae using CTIO 4m Mosaic images [11]. We propose to continue our search for light echoes of the remaining historical events. With DECam, we have a 10-15 fold improvement in efficiency over the retired CTIO-Mosaic camera, which allows us to cover the bigger search areas of most of the remaining targets. With the KPNO 4-m, we will observe fields too far north for CTIO/DECam. The study of scattered-light echoes from these Galactic supernovae and eruptions will give us the opportunity to directly compare the original outburst and its current remnant, and in favorable cases, it provides a three- dimensional view of the event (e.g., Cas~A, SN~1987A, and Eta~Car) and/or a spectral time series (e.g., Eta~Car and Tycho).

Program Type: Standard/Galactic

Scheduled Nights:
Run 2 (2017A):  KP-4m/MOSA3 -- 2n on Jun 21 - Jun 24 2017
Run 3 (2017A):  CT-4m/DECam -- 1.5n on Feb 19 - Feb 20 2017, Mar 17 2017
Run 4 (2017A):  CT-4m/DECam -- 1.5n on May 01 2017, May 30 - May 31 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 >   2017A-0375

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