2002/08/28 by Roberto P. Mignani, R. Mignani, Andrea De Luca +5 · 33 citations
Physics and Astronomy · #Advanced Camera for Surveys #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Declination #Ephemeris #Epoch (astronomy) #Galaxy #Gamma-ray bursts and supernovae #Hubble Deep Field #Hubble Deep Field South #Hubble space telescope #Physics #Proper motion #Pulsar #Pulsars and Gravitational Waves Research #Quasar #Right ascension #Satellite #Space Telescope Imaging Spectrograph #Stars #Telescope #Very Long Baseline Array #astro-ph
paper · pdf · doi:10.1086/345291
published in The Astrophysical Journal 580(2), L147-L150 (IOP Publishing) · 12 pages, 3 figures, submitted to ApJ Letters
arxiv created 2002/08/28 · openalex publication_date 2002/12/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We report on the proper-motion measurement of the proposed optical counterpart of the X-ray/radio pulsar PSR 1929+10. Using images obtained with the Hubble Space Telescope ( HST ) Space Telescope Imaging Spectrograph (STIS; average epoch 2001.73), we computed a yearly displacement of +97 ± 1 mas yr -1 in right ascension and +46 ± 1 mas yr -1 in declination since the epoch (1994.52) of the original HST Faint Object Camera (FOC) detection. Both the magnitude and direction of the optical proper-motion components are found to be fully consistent with the most recent Very Long Baseline Array radio measurements. This result provides an unambiguous confirmation of the pulsar optical identification. In addition, we have used the combined STIS/FOC data sets to derive information on the pulsar spectrum, which seems characterized by a power-law component, apparently unrelated to the X-ray emission.