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News Release Archive:

News Release 11 of 884

February 21, 2013 01:00 PM (EST)

News Release Number: STScI-2013-07

Stellar Motions in Outer Halo Shed New Light on Milky Way Evolution

Technical facts about this news release:

About the Object

Object Description:

Milky Way Shell Structure

About the Data

Data Description:	The Hubble data used in this science finding are from proposals 9453 and 10265, PI: T. Brown (STScI), and 11684, PI: R. van der Marel (STScI). The science team consists of A. Deason and P. Guhathakurta (University of California, Santa Cruz), and R. van der Marel, T. Sohn, and T. Brown (STScI).
Instrument:	ACS/WFC and WFC3/UVIS
Exposure Date(s):	December 2002 - January 2003, August 2004 - January 2005, January - August 2010.
Filters:	F606W (V) and F814W (I)

About the Release

Credit:	NASA, ESA, A. Deason and P. Guhathakurta (University of California, Santa Cruz), and R. van der Marel, T. Sohn, and T. Brown (STScI)
Release Date:	February 21, 2013