Abstract / Description of output
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 lesssim3° 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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Journal | Astrophysical Journal Letters |
DOIs | |
Publication status | Published - 22 Sept 2008 |
Keywords / Materials (for Non-textual outputs)
- astro-ph