Publication:
Dark Matter Constraints from the Sagittarius Dwarf and Tail System

Simple item page
dc.contributor.authorMajewski, Steven R.
dc.contributor.authorLaw, David R.
dc.contributor.authorJohnston, Kathryn V.
dc.contributor.authorSkrutskie, Michael F.
dc.contributor.authorWeinberg, Martin D.
dc.contributor.departmentUniversity of Virginia
dc.contributor.departmentUniversity of Virginia
dc.contributor.departmentWesleyan University
dc.contributor.departmentUniversity of Virginia
dc.contributor.departmentUniversity of Massachusetts Amherst
dc.date2023-09-22T21:59:23.000
dc.date.accessioned2024-04-26T08:26:01Z
dc.date.available2024-04-26T08:26:01Z
dc.date.issued2004-01-01
dc.descriptionThis is a pre-published version which is collected from arXiv link.
dc.description.abstract2MASS has provided a three-dimensional map of the >360 degree, wrapped tidal tails of the Sagittarius (Sgr) dwarf spheroidal galaxy, as traced by M giant stars. With the inclusion of radial velocity data for stars along these tails, strong constraints exist for dynamical models of the Milky Way-Sgr interaction. N-body simulations of Sgr disruption with model parameters spanning a range of initial conditions (e.g., Sgr mass and orbit, Galactic rotation curve, halo flattening) are used to find parameterizations that match almost every extant observational constraint of the Sgr system. We discuss the implications of the Sgr data and models for the orbit, mass and M/L of the Sgr bound core as well as the strength, flattening, and lumpiness of the Milky Way potential.
dc.description.pages189-194
dc.identifier.doihttps://doi.org/10.1017/S0074180900183196
dc.identifier.urihttps://hdl.handle.net/20.500.14394/2754
dc.relation.ispartofIAU Symposium
dc.relation.ispartofseriesASP Conference Series
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1108&context=astro_faculty_pubs&unstamped=1
dc.source.issue220
dc.source.statuspublished
dc.subjectAstrophysics and Astronomy
dc.titleDark Matter Constraints from the Sagittarius Dwarf and Tail System
dc.typearticle
dc.typearticle
digcom.contributor.authorMajewski, Steven R.
digcom.contributor.authorLaw, David R.
digcom.contributor.authorJohnston, Kathryn V.
digcom.contributor.authorSkrutskie, Michael F.
digcom.contributor.authorisAuthorOfPublication|email:weinberg@astro.umass.edu|institution:University of Massachusetts Amherst|Weinberg, Martin D.
digcom.identifierastro_faculty_pubs/113
digcom.identifier.contextkey1610518
digcom.identifier.submissionpathastro_faculty_pubs/113
dspace.entity.typePublication
relation.isAuthorOfPublication6387ef0a-b08d-4ee2-b19d-775a09801631
relation.isAuthorOfPublication.latestForDiscovery6387ef0a-b08d-4ee2-b19d-775a09801631
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Dark_Matter_Constraints_from_the_Sagittarius_Dwarf_and.pdf
Size:
100.43 KB
Format:
Adobe Portable Document Format
Thumbnail Image
Name: Dark_Matter_Constraints_from_the_Sagittarius_Dwarf_and.pdf
Size: 100.43 KB
Kind: Adobe PDF
Collections
Astronomy Department Faculty Publication Series