Research Consortium On Nearby Stars
The REsearch Consortium On Nearby Stars (RECONS) is an international group of astronomers founded in 1994 to investigate the stars nearest to the Solar System - with a focus on those within 10 parsecs (32.6 light years), but as of 2012 stretching the horizon to 25 parsecs. In part the project hopes a more accurate survey of local star systems will give a better picture of the star systems in the Galaxy as a whole.
The Consortium claims authorship of the The Solar Neighborhood series in the The Astronomical Journal, that began in 1994. This series now numbers almost 40 papers and submissions. The following discoveries are from this series:
- GJ 1061 was discovered to be the 20th nearest known star system, at a distance of 11.9 light years.
- The first accurate measurement of distance for DENIS 0255-4700. At a distance of 16.2 light years, it is the nearest known class L brown dwarf object to the Solar System.
- The discovery of 20 previously unknown star systems within 10 parsecs of the Solar System. These are in addition to 8 new star systems announced between 2000 and 2005.
The RECONS web page includes the frequently referenced List of the 100 Nearest Star Systems. They update this list as discoveries are made. A list of all RECONS parallaxes is available, as are all papers in The Solar Neighborhood series and The RECONS Movie by Adric Riedel which illustrates data from the RECONS 25 Parsec Database.
Todd J. Henry of Georgia State University, Atlanta, USA, is the Consortium's founder and director. Other key astronomers involved in the project include Wei-Chun Jao (GSU), John Subasavage (USNO-Flagstaff), Charlie Finch (USNO-DC), Adric Riedel (Cal Tech), Sergio Dieterich (Carnegie), Jennifer Winters (Harvard-Smithsonian CfA), and Phil Ianna (University of Virginia).
- Henry, Todd J.; Kirkpatrick, J. Davy; Simons, Douglas A. (October 1994). "The solar neighborhood, 1: Standard spectral types (K5-M8) for northern dwarfs within eight parsecs". The Astronomical Journal. 108 (4): 1437–1444. Bibcode:1994AJ....108.1437H. doi:10.1086/117167.
- Henry, Todd J.; et al. (July 1997). "The solar neighborhood IV: discovery of the twentieth nearest star". Astronomical Journal. 114: 388–395. Bibcode:1997AJ....114..388H. doi:10.1086/118482.
- Costa, Edgardo; Méndez, René A.; Jao, W.-C.; Henry, Todd J.; Subasavage, John P.; Ianna, Philip A. (September 2006). "The Solar Neighborhood. XVI. Parallaxes from CTIOPI: Final Results from the 1.5 m Telescope Program". The Astronomical Journal. 132 (3): 1234–1247. Bibcode:2006AJ....132.1234C. doi:10.1086/505706.
- Henry, Todd J.; et al. (December 2006). "The Solar Neighborhood. XVII. Parallax Results from the CTIOPI 0.9 m Program: 20 New Members of the RECONS 10 Parsec Sample". The Astronomical Journal. 132 (6): 2360–2371. arXiv: . Bibcode:2006AJ....132.2360H. doi:10.1086/508233.
- Henry, T. J.; Beaulieu, T. D.; Brown, M. A.; Jao, W. C.; Monteiro, H.; Subasavage, J. P.; RECONS (December 2004). "New Nearby Stars from NOAO and SMARTS Observations". American Astronomical Society Meeting 205, #165.07; Bulletin of the American Astronomical Society. 36: 1618. Bibcode:2004AAS...20516507H.