NOAO > Library > NOAO Preprint Series > Preprint 895
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NOAO > Library > NOAO Preprint Series > Preprint 895 |
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Author(s): Piatek, S., Pryor, C., Armandroff, T.E., Olszewski, E.W.
Title: Structure of the Draco Dwarf
Spheroidal
Galaxy
Abstract:
This article studies the structure of the Draco dwarf spheroidal galaxy with
an
emphasis on the question of whether the spatial distribution of its stars has
been affected by the tidal interaction with the Milky Way, using R- and V-band
CCD photometry for eleven fields. The article reports coordinates for the
center, a position angle of the major axis, and the ellipticity. It also
reports
the results of searches for asymmetries in the structure of Draco. These
results, and searches for a ``break'' in the radial profile and for the
presence
of principal sequences of Draco in a color-magnitude diagram for regions more
than 50 arcmin from the center, yield no evidence that tidal forces from the
Milky Way have affected the structure of Draco.
Date Received:
January 22, 2002
Publication Info:
AJ 123:2511-2524
Telescopes:
KP-0.9m
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NOAO > Library > NOAO Preprint Series > Preprint 895 |
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