The Field of Streams: Sagittarius and its Siblings

V. Belokurov (1) , D. B. Zucker (1) , N. W. Evans (1) , G. Gilmore (1) , S. Vidrih (1) , D. M. Bramich (1) , H. J. Newberg (2) , R. F. G. Wyse (3)

show 23 more authors

M. J. Irwin (1) M. Fellhauer (1) P. C. Hewett (1) N. A. Walton (1) M. I. Wilkinson (1) N. Cole (2) B. Yanny (4) C. M. Rockosi (5) T. C. Beers (6) E. F. Bell (7) J. Brinkmann (8) Z. Ivesic (9) R. Lupton (10) ((1) Cambridge (2) RPI (3) JHU (4) FNAL (5) Lick UCSD (6) Michigan State University (7) MPIA (8) Apache Point (9) Washington (10) Princeton)

Authors on Pith no claims yet

classification 🌌 astro-ph

keywords sagittariusdatafieldgalactichalostreamareaaround

0 comments

read the original 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, 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 3 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.

This paper has not been read by Pith yet.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Reconstructing the Stripping History of the Sagittarius Stream with Neural Networks
astro-ph.GA 2026-05 unverdicted novelty 7.0

A neural network trained on simulations infers stripping times for Sagittarius stream stars from phase-space data, measuring a 0.3 dex/Gyr metallicity gradient and estimating ages for globular clusters such as Pal 12 ...