| Issue |
EPJ Web of Conferences
Volume 19, 2012
Assembling the Puzzle of the Milky Way
|
|
|---|---|---|
| Article Number | 02007 | |
| Number of page(s) | 3 | |
| Section | First Epochs Assembly: Halo Assembly, Streams, Which Timescale? | |
| DOI | https://doi.org/10.1051/epjconf/20121902007 | |
| Published online | 07 February 2012 | |
https://doi.org/10.1051/epjconf/20121902007
Sub-structures in the inner halo of the Milky Way
1 Centro de Investigaciones de Astronomía (CIDA), Mérida, Venezuela
2 Astronomy Department, Yale University, New Haven, CT, USA
3 Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Germany
4 Osservatorio Astronomico di Padova INAF, Italy
a e-mail: akvivas@cida.ve
We present a spectroscopic study of a sample of 238 RR Lyrae stars, from the QUEST survey, located in the Galactic halo at distances between 4 and 20 kpc from the Sun. Combining their spatial position and kinematics we were able to identify sub-structures in this part of the halo. Some of those sub-structures may be associated with known halo features like the Virgo Overdensity, the Hercules-Aquila Cloud, and the Anticenter Stream.
© Owned by the authors, published by EDP Sciences, 2012
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