Radial velocities for the HIPPARCOS-GaiaHundred-Thousand-Proper-Motion project

2012/07/23 by J. H. J. de Bruijne, Anna–Christina Eilers, A. -C. Eilers · 1 citation
Physics and Astronomy · #Acceleration #Astrometry #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Classical mechanics #Epoch (astronomy) #Gamma-ray bursts and supernovae #Magnitude (astronomy) #Motion (physics) #Physics #Proper motion #Radial velocity #Stars #Stellar, planetary, and galactic studies #astro-ph.GA #astro-ph.IM #astro-ph.SR

paper · pdf · doi:10.1051/0004-6361/201219219

Accepted in A&A

openalex publication_date 2012/07/23 · arxiv created 2012/08/15 · arxiv updated 2012/08/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. The Hundred-Thousand-Proper-Motion (HTPM) project will determine the proper motions of ~113 500 stars using a ~23-year baseline. The proper motions will be based on space-based measurements exclusively, with the Hipparcos data, with epoch 1991.25, as first epoch and with the first intermediate-release Gaia astrometry, with epoch ~2014.5, as second epoch. The expected HTPM proper-motion standard errors are 30−190 μas yr-1, depending on stellar magnitude.

Citations

• Understanding the spiral structure of the Milky Way using the local kinematic groups
• The Gaia spectroscopic instrument (RVS): a technical challenge
• XHIP: An extended hipparcos compilation
• PPM-Extended (PPMX) – a catalogue of positions and proper motions
• The Geneva-Copenhagen survey of the Solar neighbourhood
• Astrometric radial velocities

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