The field of streams: Sagittarius and its siblings

V. Belokurov, D. B. Zucker, N. W. Evans, G. Gilmore, S. Vidrih, D. M. Bramich, H. J. Newberg, R. F G Wyse, M. J. Irwin, M. Fellhauer, P. C. Hewett, N. A. Walton, M. I. Wilkinson, N. Cole, B. Yanny, C. M. Rockosi, T. C. Beers, E. F. Bell, J. Brinkmann, Ž IvezićR. Lupton

Research output: Contribution to journalArticle

545 Citations (Scopus)

Abstract

We use Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) u, g, r, i, z photometry to study Milky Way halo substructure in the area around the north Galactic cap. A simple color cut (g - r < 0.4) reveals the tidal stream of the Sagittarius dwarf spheroidal galaxy, as well as a number of other stellar structures in the field. Two branches (A and B) of the Sagittarius stream are clearly visible in an RGB composite image created from three magnitude slices, and there is also evidence for a still more distant wrap behind the A branch. A comparison of these data with numerical models suggests that the shape of the Galactic dark halo is close to spherical.

Original languageEnglish
JournalAstrophysical Journal
Volume642
Issue number2 II
DOIs
Publication statusPublished - 10 May 2006
Externally publishedYes

Fingerprint

halos
stellar structure
wrap
dwarf galaxies
substructures
caps
photometry
color
composite materials
comparison

Keywords

  • Galaxies: individual (Sagittarius dSph)
  • Galaxies: kinematics and dynamics
  • Galaxies: structure
  • Galaxy: halo
  • Local Group

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Belokurov, V., Zucker, D. B., Evans, N. W., Gilmore, G., Vidrih, S., Bramich, D. M., ... Lupton, R. (2006). The field of streams: Sagittarius and its siblings. Astrophysical Journal, 642(2 II). https://doi.org/10.1086/504797

The field of streams : Sagittarius and its siblings. / Belokurov, V.; Zucker, D. B.; Evans, N. W.; Gilmore, G.; Vidrih, S.; Bramich, D. M.; Newberg, H. J.; Wyse, R. F G; Irwin, M. J.; Fellhauer, M.; Hewett, P. C.; Walton, N. A.; Wilkinson, M. I.; Cole, N.; Yanny, B.; Rockosi, C. M.; Beers, T. C.; Bell, E. F.; Brinkmann, J.; Ivezić, Ž; Lupton, R.

In: Astrophysical Journal, Vol. 642, No. 2 II, 10.05.2006.

Research output: Contribution to journalArticle

Belokurov, V, Zucker, DB, Evans, NW, Gilmore, G, Vidrih, S, Bramich, DM, Newberg, HJ, Wyse, RFG, Irwin, MJ, Fellhauer, M, Hewett, PC, Walton, NA, Wilkinson, MI, Cole, N, Yanny, B, Rockosi, CM, Beers, TC, Bell, EF, Brinkmann, J, Ivezić, Ž & Lupton, R 2006, 'The field of streams: Sagittarius and its siblings', Astrophysical Journal, vol. 642, no. 2 II. https://doi.org/10.1086/504797
Belokurov V, Zucker DB, Evans NW, Gilmore G, Vidrih S, Bramich DM et al. The field of streams: Sagittarius and its siblings. Astrophysical Journal. 2006 May 10;642(2 II). https://doi.org/10.1086/504797
Belokurov, V. ; Zucker, D. B. ; Evans, N. W. ; Gilmore, G. ; Vidrih, S. ; Bramich, D. M. ; Newberg, H. J. ; Wyse, R. F G ; Irwin, M. J. ; Fellhauer, M. ; Hewett, P. C. ; Walton, N. A. ; Wilkinson, M. I. ; Cole, N. ; Yanny, B. ; Rockosi, C. M. ; Beers, T. C. ; Bell, E. F. ; Brinkmann, J. ; Ivezić, Ž ; Lupton, R. / The field of streams : Sagittarius and its siblings. In: Astrophysical Journal. 2006 ; Vol. 642, No. 2 II.
@article{d8dee5d6a1b146bf9fc54f388ac33c36,
title = "The field of streams: Sagittarius and its siblings",
abstract = "We use Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) u, g, r, i, z photometry to study Milky Way halo substructure in the area around the north Galactic cap. A simple color cut (g - r < 0.4) reveals the tidal stream of the Sagittarius dwarf spheroidal galaxy, as well as a number of other stellar structures in the field. Two branches (A and B) of the Sagittarius stream are clearly visible in an RGB composite image created from three magnitude slices, and there is also evidence for a still more distant wrap behind the A branch. A comparison of these data with numerical models suggests that the shape of the Galactic dark halo is close to spherical.",
keywords = "Galaxies: individual (Sagittarius dSph), Galaxies: kinematics and dynamics, Galaxies: structure, Galaxy: halo, Local Group",
author = "V. Belokurov and Zucker, {D. B.} and Evans, {N. W.} and G. Gilmore and S. Vidrih and Bramich, {D. M.} and Newberg, {H. J.} and Wyse, {R. F G} and Irwin, {M. J.} and M. Fellhauer and Hewett, {P. C.} and Walton, {N. A.} and Wilkinson, {M. I.} and N. Cole and B. Yanny and Rockosi, {C. M.} and Beers, {T. C.} and Bell, {E. F.} and J. Brinkmann and Ž Ivezić and R. Lupton",
year = "2006",
month = "5",
day = "10",
doi = "10.1086/504797",
language = "English",
volume = "642",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2 II",

}

TY - JOUR

T1 - The field of streams

T2 - Sagittarius and its siblings

AU - Belokurov, V.

AU - Zucker, D. B.

AU - Evans, N. W.

AU - Gilmore, G.

AU - Vidrih, S.

AU - Bramich, D. M.

AU - Newberg, H. J.

AU - Wyse, R. F G

AU - Irwin, M. J.

AU - Fellhauer, M.

AU - Hewett, P. C.

AU - Walton, N. A.

AU - Wilkinson, M. I.

AU - Cole, N.

AU - Yanny, B.

AU - Rockosi, C. M.

AU - Beers, T. C.

AU - Bell, E. F.

AU - Brinkmann, J.

AU - Ivezić, Ž

AU - Lupton, R.

PY - 2006/5/10

Y1 - 2006/5/10

N2 - We use Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) u, g, r, i, z photometry to study Milky Way halo substructure in the area around the north Galactic cap. A simple color cut (g - r < 0.4) reveals the tidal stream of the Sagittarius dwarf spheroidal galaxy, as well as a number of other stellar structures in the field. Two branches (A and B) of the Sagittarius stream are clearly visible in an RGB composite image created from three magnitude slices, and there is also evidence for a still more distant wrap behind the A branch. A comparison of these data with numerical models suggests that the shape of the Galactic dark halo is close to spherical.

AB - We use Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) u, g, r, i, z photometry to study Milky Way halo substructure in the area around the north Galactic cap. A simple color cut (g - r < 0.4) reveals the tidal stream of the Sagittarius dwarf spheroidal galaxy, as well as a number of other stellar structures in the field. Two branches (A and B) of the Sagittarius stream are clearly visible in an RGB composite image created from three magnitude slices, and there is also evidence for a still more distant wrap behind the A branch. A comparison of these data with numerical models suggests that the shape of the Galactic dark halo is close to spherical.

KW - Galaxies: individual (Sagittarius dSph)

KW - Galaxies: kinematics and dynamics

KW - Galaxies: structure

KW - Galaxy: halo

KW - Local Group

UR - http://www.scopus.com/inward/record.url?scp=33746074472&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746074472&partnerID=8YFLogxK

U2 - 10.1086/504797

DO - 10.1086/504797

M3 - Article

AN - SCOPUS:33746074472

VL - 642

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2 II

ER -