Abstract / Description of output
The wide-field CCD camera at the Canada-France-Hawaii Telescope (CFHT)
was used to survey the giant stellar stream in the Andromeda galaxy,
resolving stars down the red giant branch in M31 to I~= 25, a magnitude
deeper than our previous Isaac Newton Telescope (INT) survey of this
galaxy and extending 1° further out. The stream is seen to extend
out to the south-east of M31 as far as we have surveyed (some ,
corresponding to a projected distance of ~60 kpc). It is a linear
structure in projection, and the eastern edge of the stream presents a
sharp boundary in star counts, suggesting that it remains a coherent
structure. By analysing the luminosity function of the metal-rich
component of the stream, we find that, at the furthest extent of our
survey, the stream is 100 kpc further away along the line of sight than
M31. It can then be traced to a point on the north-western side of the
galaxy where it is some 30 kpc in front of M31, at which point the
stream turns away from our survey area.
Original language | English |
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Pages (from-to) | 1335-1340 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 343 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Aug 2003 |
Keywords / Materials (for Non-textual outputs)
- galaxies: evolution
- galaxies: general
- galaxies: haloes
- galaxies: interactions
- Local Group
- galaxies: stellar content