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Astrophysics > Instrumentation and Methods for Astrophysics

arXiv:1001.0305 (astro-ph)
[Submitted on 2 Jan 2010 ]

Title: Preliminary Astrometric Results from Kepler

Title: 开普勒的初步天体测量结果

Authors:David G. Monet (US Naval Observatory, Flagstaff Station), Jon M. Jenkins (SETI Institute), Edward W. Dunham (Lowell Observatory, Flagstaff), Stephen T. Bryson (NASA Ames Research Center), Ronald L. Gilliland (Space Telescope Science Institute), David W. Latham (Harvard-Smithsonian Center for Astrophysics), William J. Borucki (NASA Ames Research Center), David G. Koch (NASA Ames Research Center)
Abstract: Although not designed as an astrometric instrument, Kepler is expected to produce astrometric results of a quality appropriate to support many of the astrophysical investigations enabled by its photometric results. On the basis of data collected during the first few months of operation, the astrometric precision for a single 30 minute measure appears to be better than 4 milliarcseconds (0.001 pixel). Solutions for stellar parallax and proper motions await more observations, but the analysis of the astrometric residuals from a local solution in the vicinity of a star have already proved to be an important tool in the process of confirming the hypothesis of a planetary transit.
Comments: 15 pages, 5 figures, submitted to the Astrophysical Journal Letters
Subjects: Instrumentation and Methods for Astrophysics (astro-ph.IM)
Cite as: arXiv:1001.0305 [astro-ph.IM]
  (or arXiv:1001.0305v1 [astro-ph.IM] for this version)
  https://doi.org/10.48550/arXiv.1001.0305

Submission history

From: David G. Monet [view email]
[v1] Sat, 2 Jan 2010 14:26:04 UTC (98 KB)
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