The orbits of the triple-star system 1 geminorum from phases differential astrometry and spectroscopy
Journal Article
·
· Astrophysical Journal
- The Charles Stark Draper Laboratory, Inc., 555 Technology Square, Cambridge, MA 02139 (United States)
- Department of Mathematical Sciences, College of Engineering, Tennessee State University, Boswell Science Hall, Nashville, TN 37209 (United States)
- The Observatories, Institute of Astronomy, Madingley Road, Cambridge CB3 0HA (United Kingdom)
- Department of Physics and Astronomy, University of Victoria, BC V8W 3P6 (Canada)
- Center of Excellence in Information Systems, Tennessee State University, 3500 John A. Merritt Boulevard, Box 9501, Nashville, TN 37209 (United States)
- 7050 Bakerville Road, Waverly, TN 37185 (United States)
- Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)
- Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Rabianska 8, 87-100 Torun (Poland)
We have used precise differential astrometry from the Palomar High-precision Astrometric Search for Exoplanet Systems project and radial-velocity measurements covering a time span of 40 yr to determine the orbital parameters of the 1 Geminorum triple system. We present the first detection of the spectral lines of the third component of the system, together with precise mass (0.5%) and distance (0.15%) determinations for this system. In addition, our astrometry allows us to make the first determination of the mutual inclination of the orbits.
- OSTI ID:
- 22351394
- Journal Information:
- Astrophysical Journal, Vol. 783, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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