A Deep Proper-Motion Survey in Kapteyn Selected Areas: I. Survey Description and First Results for Stars in the Tidal Tail of Sagittarius and in the Monoceros Ring

Abstract

We describe a high-precision, deep (to V ~ 19-21) absolute proper-motion survey that samples ~50 lines of sight in the Kapteyn Selected Areas along declination zones -15, 0 and 15 degrees. In many fields the astrometric baseline reaches nearly a century. We demonstrate that these data provide typical per star precisions between ~ 1 and 3 mas/yr to the above magnitude limits, with the absolute reference frame established by numerous extragalactic sources in each survey field. Combined with existing and ongoing photometric and radial velocity surveys in these fields, these astrometric data will enable, among other things, accurate, detailed dynamical modeling of satellite interactions with our Galaxy. In this contribution we describe the astrometric part of our survey and show preliminary results along the trailing tail of the Sagittarius dwarf galaxy, and in the Monoceros ring region.

arXiv commentAccepter for publication in the Astronomical Journal

References in corpus (33)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• The USNO-B Catalog
• A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: I. Morphology of the Sagittarius Core and Tidal Arms
• The Ghost of Sagittarius and Lumps in the Halo of the Milky Way
• The second US Naval Observatory CCD Astrograph Catalog (UCAC2)
• A Low Latitude Halo Stream around the Milky Way
• A dwarf galaxy remnant in Canis Major: the fossil of an in-plane accretion onto the Milky Way
• A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: IV. Modeling the Sagittarius Tidal Tails
• Outer structure of the Galactic warp and flare: explaining the Canis Major over-density
• The Sloan Digital Sky Survey Quasar Catalog III. Third Data Release
• Galactic Halo substructure in the Sloan Digital Sky Survey: the ancient tidal stream from the Sagittarius dwarf galaxy
• One Ring to Encompass them All: A giant stellar structure that surrounds the Galaxy
• A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: III. Constraints on the Flattening of the Galactic Halo
• Tidal Streams as Probes of the Galactic Potential
• A comprehensive model for the Monoceros tidal stream
• Exploring Halo Substructure with Giant Stars: A diffuse star cloud or tidal debris around the Milky Way in Triangulum-Andromeda
• A Two Micron All-Sky Survey View of the Sagittarius Dwarf Galaxy: II. Swope Telescope Spectroscopy of M Giant Stars in the Dynamically Cold Sagittarius Tidal Stream
• Spectroscopy of QUEST RR Lyrae Variables: the new Virgo Stellar Stream
• Pal 12 As A Part of the Sgr Stream; the Evidence From Abundance Ratios
• Exploring Halo Substructure with Giant Stars: Spectroscopy of Stars in the Galactic Anticenter Stellar Structure
• The Absolute Proper Motion of Palomar 12: A Case for Tidal Capture from the Sagittarius Dwarf Spheroidal Galaxy
• The Closest View of a Dwarf Galaxy: New Evidence on the Nature of the Canis Major over-density
• The core of the Canis Major galaxy as traced by Red Clump stars
• Remnants of Sagittarius Dwarf Spheroidal Galaxy around the young globular cluster Palomar 12
• Detection of a young stellar population in the background of open clusters in the Third Galactic Quadrant
• The Southern Proper Motion Program III. A Near-Complete Catalog to V=17.5
• The INT/WFC survey of the Monoceros Ring: Accretion origin or Galactic Anomaly?
• The Effect of Thermal Conduction on the Virgo Cluster
• Absolute Proper Motion of the Canis Major Dwarf Galaxy Candidate
• The Dog on the Ship: The "Canis Major Dwarf Galaxy" as an Outlying Part of the Argo Star System
• The Ultra Luminous X-ray sources in the High Velocity System of NGC 1275
• Measuring Fundamental Galactic Parameters with Stellar Tidal Streams and SIM PlanetQuest
• Absolute Proper Motions to B~22.5: V. Detection of Sagittarius Dwarf Spheroidal Debris in the Direction of the Galactic Anticenter

Cited by in corpus (14)

• Probing the Outer Galactic halo with RR Lyrae from the Catalina Surveys
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• Kinematics and Chemistry of Stars Along the Sagittarius Trailing Tidal Tail and Constraints on the Milky Way Mass Distribution
• The Velocity Anisotropy of Distant Milky Way Halo Stars from Hubble Space Telescope Proper Motions
• Proper Motions in Kapteyn Selected Area 103: A Preliminary Orbit for the Virgo Stellar Stream
• The Origin of the Virgo Stellar Substructure
• Fishing in Tidal Streams: New Radial Velocity and Proper Motion Constraints on the Orbit of the Anticenter Stream
• Constraints on the Formation of the Globular Cluster IC 4499 from Multi-Wavelength Photometry
• Spectroscopic hint of a cold stream in the direction of the globular cluster NGC 1851
• Kinematics of Stars in Kapteyn Selected Area 71: Sampling the Monoceros and Sagittarius Tidal Streams
• Kinematics in Kapteyn's Selected Area 76: Orbital Motions Within the Highly Substructured Anticenter Stream
• The Next Generation Virgo Cluster Survey. XIX. Tomography of Milky Way Substructures in the NGVS Footprint
• Detection of a Stellar Stream Behind Open Cluster NGC 188: Another Part of the Monoceros Stream
• Precision Astrometry, Galactic Mergers, Halo Substructure and Local Dark Matter