The Solar Neighborhood. XVII. Parallax Results from the CTIOPI 0.9 m Program: 20 New Members of the RECONS 10 Parsec Sample

By T. Henry, W. Jao, J. Subasavage, T. Beaulieu, P. Ianna, E. Costa, R. Mendez. 2006

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Astrometric measurements for 25 red dwarf systems are presented, including the first definitive trigonometric parallaxes for 20 systems within 10 pc of the Sun, the horizon of the RECONS sample. The three nearest systems that had no previous trigonometric parallaxes (other than perhaps rough preliminary efforts) are SO 0253+1652 (3.84 ± 0.04 pc, the 23rd nearest system), SCR 1845-6357 AB (3.85 ± 0.02 pc, 24th nearest), and LHS 1723 (5.32 ± 0.04 pc, 56th nearest). In total, seven of the systems reported here rank among the nearest 100 stellar systems. Supporting photometric and spectroscopic observations have been made to provide full characterization of the systems, including complete VRIJHKs photometry and spectral types. A study of the variability of 27 targets reveals six obvious variable stars, including GJ 1207, for which we observed a flare event in the V band that caused it to brighten by 1.7 mag. Improved parallaxes for GJ 54 AB and GJ 1061, both important members of the 10 pc sample, are also reported. Definitive parallaxes for GJ 1001 A, GJ 633, and GJ 2130 ABC, all of which have been reported to be within 10 pc, indicate that they are beyond 10 pc. From the analysis of systems with (previously) high trigonometric parallax errors, we conclude that parallaxes with errors in excess of 10 mas are insufficiently reliable for inclusion in the RECONS sample. The cumulative total of new additions to the 10 pc sample since 2000 is now 34 systems: 28 by the RECONS team and six by other groups. This total represents a net increase of 16% in the number of stellar systems reliably known to be nearer than 10 pc.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/21d22afa2c7cba367f7b3df8c8b0bd1d601fd943

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In Astronomy and Astrophysics

1. D. Charbonneau
2. Jon Fortney
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4. N. Madhusudhan
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6. T. Dupuy
7. A. Mann
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Citations in the corpus

• BANYAN. VII. A NEW POPULATION OF YOUNG SUBSTELLAR CANDIDATE MEMBERS OF NEARBY MOVING GROUPS FROM THE BASS SURVEY (2015, background): “5 dwarf; Henry et al. (2006) refined its distance measurement to 3.85± 0.01 pc. Witte et al. (2011) identified this object as a potential low-gravity dwarf from atmosphere model fitting, and we identified it as a candidate member of ARG in Paper II, but its distance is not consistent with…”
• THE TRANSITING EXOPLANET SURVEY SATELLITE: SIMULATIONS OF PLANET DETECTIONS AND ASTROPHYSICAL FALSE POSITIVES (2015, result): “—Comparison with Hipparcos and the 10 pc RECONS sample (Henry et al. 2006).”
• Stellar Multiplicity (2013, methodology): “In particular, the RECONS consortium1 has gathered a quasi-complete sample of stars and companions out to ∼ 10 pc (Henry et al. 2006).”
• Dawes Review 6: The Impact of Companions on Stellar Evolution (2016, methodology): “Binaries closer than 5 AU have γ = 1.9 ± 1.7 as determined by fitting the data of the RECONS consortium (Henry et al., 2006).”
• PLANETS AROUND LOW-MASS STARS (PALMS). IV. THE OUTER ARCHITECTURE OF M DWARF PLANETARY SYSTEMS (2014, methodology): “…on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan. neighborhood they make up ≈75% of stars (Henry et al. 2006; Kirkpatrick et al. 2012), which is a good estimate for their galactic-wide rate (Bochanski et al. 2010), and there is some…”
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• THE OCCURRENCE OF POTENTIALLY HABITABLE PLANETS ORBITING M DWARFS ESTIMATED FROM THE FULL KEPLER DATASET AND AN EMPIRICAL MEASUREMENT OF THE DETECTION SENSITIVITY (2015, background): “Such planets are important for constraining the galactic census of exoplanets because the majority of stars in the galaxy are low-mass stars (Henry et al. 2006; Winters et al. 2015).”
• FUNDAMENTAL PARAMETERS AND SPECTRAL ENERGY DISTRIBUTIONS OF YOUNG AND FIELD AGE OBJECTS WITH MASSES SPANNING THE STELLAR TO PLANETARY REGIME (2015, neutral): “…(37) Luyten (1979b), (38) Kirkpatrick et al. (1997), (39) Metchev et al. (2008), (40) West et al. (2008), (41) Turnbull & Tarter (2003), (42) Henry et al. (2006), (43) Luhman et al. (2009), (44) Scholz et al. (2011), (45) Kirkpatrick et al. (2011), (46) Martín et al. (1999), (47)…”
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• THE HAWAII INFRARED PARALLAX PROGRAM. I. ULTRACOOL BINARIES AND THE L/T TRANSITION, (2012, neutral): “…(9) Dahn et al. (2008); (10) Ducourant et al. (2008); (11) Gatewood & Coban (2009); (12) Geyer et al. (1988); (13) Harrington et al. (1993); (14) Henry et al. (2006); (15) Ireland et al. (2008); (16) Kirkpatrick et al. (2011); (17) Leggett et al. (2012); (18) Lépine et al. (2009); (19) Liu et…”
• HOW TO CONSTRAIN YOUR M DWARF: MEASURING EFFECTIVE TEMPERATURE, BOLOMETRIC LUMINOSITY, MASS, AND RADIUS (2015, neutral): “Trigonometric parallaxes were taken from Harrington et al. (1993), Jao et al. (2005), Henry et al. (2006), van Leeuwen (2007), Gatewood (2008), Gatewood & Coban (2009), Lépine et al. (2009), Riedel et al. (2010), Jao et al. (2011), and 2 The Astrophysical Journal, 804:64 (38pp), 2015 May 1 Mann et…”
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• METALLICITY AND TEMPERATURE INDICATORS IN M DWARF K-BAND SPECTRA: TESTING NEW AND UPDATED CALIBRATIONS WITH OBSERVATIONS OF 133 SOLAR NEIGHBORHOOD M DWARFS (2011, methodology): “Sixty eight of the stars in our sample have KHM spectral types reported by the Research Consortium On Nearby Stars (RECONS, Henry et al. 2006), enabling us to calibrate the H2O-K2 index as a proxy for KHM spectral type.”