Stars of the Draco Dwarf Spheroidal Galaxy Beyond Its Measured Tidal Boundary

@article{Piatek2001StarsOT,
  title={Stars of the Draco Dwarf Spheroidal Galaxy Beyond Its Measured Tidal Boundary},
  author={Slawomir Piatek and Carlton Pryor and Taft E. Armandroff and E. Olszewski},
  journal={The Astronomical Journal},
  year={2001},
  volume={121},
  pages={841-860}
}
We report R- and V-band photometry derived from CCD imaging for objects in nine fields in and around the Draco dwarf spheroidal galaxy. The most distant fields are about 13 from the center. We use these data to search for Draco stars outside of its measured tidal boundary. The search involves three methods: (1) plotting color-magnitude diagrams for individual fields, for sections of fields, and for combined fields and sections—a colour-magnitude diagram can reveal a population of Draco stars by… Expand

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References

SHOWING 1-10 OF 49 REFERENCES
Deep Photometry of the Draco Dwarf Spheroidal Galaxy
We report the results of deep CCD photometry of two overlapping fields in the Draco dwarf spheroidal galaxy. We find (B-V)o, g = 0m.69, indicating a mean [Fe/H] = -2.0. The width of the giant branchExpand
Discovery of a Tidal Extension of the Sagittarius Dwarf Spheroidal Galaxy
We report the discovery of stars associated with the Sagittarius dwarf spheroidal galaxy (Sgr) located nearly 10° from the center of the main body of the galaxy, far beyond the outer boundary definedExpand
Exploring Halo Substructure with Giant Stars. II. Mapping the Extended Structure of the Carina Dwarf Spheroidal Galaxy
As part of our survey for substructure in the Milky Way halo as traced by giant stars and to look for tidal stellar debris in the halo viable for measurement of the Galactic mass potential with theExpand
Evidence for the Sagittarius Dwarf Galaxy at Low Galactic Latitudes
A structure that is likely associated with the Sagittarius dwarf galaxy (Sgr) is identified in a new sample of 1466 RR Lyrae stars of Bailey type ab (RRab). These stars were discovered in a 25 deg2Expand
Tracing the Outer Structure of the Sagittarius Dwarf Galaxy:Detections at Angular Distances between 10° and 34°
We have obtained deep photometric data in 24 fields along the southeast extension of the major axis of the Sagittarius dwarf spheroidal (Sgr dSph) galaxy and in four fields along the northwestExpand
Evidence for dwarf stars at D of about 100 kiloparsecs near the Sextans dwarf spheroidal galaxy
A method is presented for detecting individual, metal-poor, dwarf stars at distances less than about 150 kpc - a method specifically designed to filter out stars from among the much more numerousExpand
MACHO project photometry of RR Lyrae stars in the Sagittarius dwarf galaxy
We report the discovery of 30 type a, b RR Lyrae (RRab) stars that are likely members of the Sagittarius dwarf galaxy (Sgr). Accurate positions, periods, amplitudes, and magnitudes are presented.Expand
Starcounts Redivivus. III. A Possible Detection of the Sagittarius Dwarf Spheroidal Galaxy at b = −40°
As part of the Selected Areas Starcounts Survey, a CCD survey to V > 21, we have obtained VI photometry of two fields at b = ?40? aligned roughly with an extrapolation of the major axis of theExpand
The APM survey for cool carbon stars in the Galactic halo – I
A by-product of the APM high-redshift quasar survey was the discovery of several distant (20–100 kpc) N-type carbon stars at high galactic latitude. Following on from this, we have started aExpand
THE MAIN-SEQUENCE TURN-OFF OF THE DRACO DWARF GALAXY.
Deep photometry on the B, V system for 182 stars in the dwarf spheroidal galaxy in Draco has been obtained with an RCA CCD camera at the Cassegrain focus of the Canada-France-Hawaii 3.6 m telescope.Expand
...
1
2
3
4
5
...