NOAO >   Observing Info >   Approved Programs >   2016A-0366

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Program Information for 2016A-0366


PI: Keith Bechtol, U. of Wisconsin, Madison, keith.bechtol@icecube.wisc.edu
Address: Wisconsin IceCube Particle Astrophysics Center, 222 W Washington Ave, Suite 500, Madison, WI 53703 USA

CoI: Alex Drlica-Wagner, FNAL
CoI: Risa Wechsler, Stanford U.
CoI: David Nidever, U. of Michigan
CoI: Knut Olsen, NOAO
CoI: Brian Yanny, FNAL
CoI: Eduardo Balbinot, University of Surrey
CoI: Sergey Koposov, University of Cambridge
CoI: Douglas Tucker, FNAL
CoI: Yao-Yuan Mao, Stanford U.
CoI: Robert Blum, NOAO
CoI: Sahar Allam, FNAL
CoI: David James, NOAO
CoI: Eric Neilsen, FNAL
CoI: Kyler Kuehn, Australian Astronomical Observatory
CoI: Vasily Belokurov, University of Cambridge
CoI: Eric Bell, U. of Michigan
CoI: Gurtina Besla, U. of Arizona
CoI: Thomas De Boer, University of Cambridge
CoI: Maria-Rosa Cioni, University of Hertfordshire
CoI: Blair Conn, Gemini Observatory
CoI: Carme Gallart, Instituto de Astrofisica de Canarias
CoI: Catherine C Kaleida, CTIO
CoI: Nicolas Martin, Max Planck Institut fur Astrophysik
CoI: Ricardo MuñOz, Universidad de Chile
CoI: Edward W Olszewski, U. of Arizona
CoI: Abhijit Saha, NOAO
CoI: Guy Stringfellow, U. of Colorado
CoI: Roeland P van der Marel, STScI
CoI: Kathy Vivas, CTIO
CoI: Dennis Zaritsky, U. of Arizona
CoI: Andrea Kunder, Universitat Potsdam
CoI: Steven R Majewski, U. of Virginia
CoI: David Martinez-Delgado, Universitat Heidelberg
CoI: Antonela Monachesi, Max Planck Institut fur Astrophysik
CoI: Matteo Monelli, Instituto de Astrofisica de Canarias
CoI: Lara Monteagudo, Instituto de Astrofisica de Canarias
CoI: Noelia Noel, University of Surrey

Title: Magellanic Satellites Survey: The Search for Hierarchical Structures within the Local Group

Abstract: A generic prediction of galaxy formation in the standard cosmological model with cold dark matter is a hierarchy of structure on mass scales ranging from galaxy clusters to ultra-faint galaxies. In the Local Group, dozens of galaxies have been found orbiting the Milky Way and Andromeda. The question of whether the largest Milky Way satellites, the Large and Small Magellanic Clouds, brought in their own entourage of satellites has been a long standing puzzle, and has garnered renewed interest following the recent discovery of more than a dozen new ultra-faint galaxy candidates in the southern hemisphere. Several of these candidates have been considered as possible satellites of satellites; in this case, more galaxies might be found nearby. We propose DECam imaging of $sim1300$ square degrees that would complete an annulus of contiguous coverage around the periphery of the Magellanic Clouds and enable systematic searches for ultra-faint galaxies. The discovery (or non-detection) of additional galaxies would provide new insight on the assembly of the Magellanic system and the environmental dependence of galaxy formation.

Program Type: Long Term/Galactic

Scheduled Nights:
Run 1 (2016A):  CT-4m/DECam -- 6n on Feb 10 - Feb 15 2016, Jun 27 - Jun 29 2016
Run 1 (2017A):  CT-4m/DECam -- 7n on Feb 12 2017, Feb 21 - Feb 23 2017, Jun 18 - Jun 20 2017


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