Abstract
We report the discovery of a new Milky Way satellite in the constellation Leo, identified in data from the Sloan Digital Sky Survey. It lies at a distance of-180 kpc, and is separated by ≤⊙3° from another recent discovery, Leo IV. We present follow-up imaging from the Isaac Newton Telescope and spectroscopy from the Hectochelle fiber spectrograph at the Multiple Mirror Telescope. Leo V's heliocentric velocity is-173.3 ±3.1 km s-1, offset by-40 km s-1 from that of Leo IV. A simple interpretation of the kinematic data is that both objects may lie on the same stream, although the implied orbit is only modestly eccentric (e-0.2)
Original language | English |
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Pages (from-to) | L83-L86 |
Number of pages | 4 |
Journal | Astrophysical Journal |
Volume | 686 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2008 |
Externally published | Yes |