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Related papers: An All-Sky Catalog of Bright M Dwarfs

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We present a spectroscopic catalog of the 1,564 brightest (J<9) M dwarf candidates in the northern sky, as selected from the SUPERBLINK proper motion catalog. Observations confirm 1,408 of the candidates to be late-K and M dwarfs with…

Solar and Stellar Astrophysics · Physics 2015-06-05 Sebastien Lepine , Eric J. Hilton , Andrew W. Mann , Matthew Wilde , Barbara Rojas-Ayala , Kelle L. Cruz , Eric Gaidos

We present an all-sky catalog of 2970 nearby ($d \lesssim 50$ pc), bright ($J< 9$) M- or late K-type dwarf stars, 86% of which have been confirmed by spectroscopy. This catalog will be useful for searches for Earth-size and possibly…

Solar and Stellar Astrophysics · Physics 2015-06-22 E. Gaidos , A. W. Mann , S. Lepine , A. Buccino , D. James , M. Ansdell , R. Petrucci , P. Mauas , E. J. Hilton

We define an enhanced spectral classification scheme for M dwarf stars, and use it to derive spectral classification of 104 northern stars with proper motions larger than 0.5"/yr which we discovered in a survey of high proper motion stars…

Astrophysics · Physics 2009-11-07 Sebastien Lepine , R. Michael Rich , Michael M. Shara

Circumstellar debris disks are important because of their connection to planetary systems. An efficient way to identify these systems is through their infrared excess. Most studies so far concentrated on early-type or solar-type stars, but…

Solar and Stellar Astrophysics · Physics 2015-06-11 Henning Avenhaus , Hans Martin Schmid , Michael R. Meyer

We have conducted a novel search of most of the southern sky for nearby red dwarfs having low proper motions, with specific emphasis on those with proper motion < 0.18 arcsec yr-1, the lower cutoff of Luyten's classic proper motion catalog.…

The MEarth survey is a search for small rocky planets around the smallest, nearest stars to the Sun as identified by high proper motion with red colors. We augmented our planetary search time series with lower cadence astrometric imaging…

Solar and Stellar Astrophysics · Physics 2015-06-18 Jason A. Dittmann , Jonathan M. Irwin , David Charbonneau , Zachory K. Berta-Thompson

Context. Being the most numerous and oldest stars in the galaxy, M dwarfs are objects of great interest for exoplanet searches. The presence of molecules in their atmosphere complicates our understanding of their atmospheric properties. But…

Solar and Stellar Astrophysics · Physics 2019-02-20 A. S. Rajpurohit , F. Allard , S. Rajpurohit , R. Sharma , G. D. C. Teixeira , O. Mousis , R. Kamlesh

Using Virtual Observatory tools, we cross-matched the Carlsberg Meridian 14 and the 2MASS Point Source catalogs to select candidate nearby bright M dwarfs distributed over ~ 25,000 deg^2. Here, we present reconnaissance low-resolution…

Solar and Stellar Astrophysics · Physics 2014-09-17 M. Aberasturi , J. A. Caballero , B. Montesinos , M. C. Gálvez-Ortiz , E. Solano , E. L. Martín

In this work, we present new catalogs of M giant and M dwarf stars from the LAMOST DR5. In total, 39,796 M giants and 501,152 M dwarfs are identified from the classification pipeline. The template-fitting results contain M giants with 7…

Astrophysics of Galaxies · Physics 2019-09-25 Jing Zhong , Jing Li , Jeffrey L. Carlin , Li Chen , Rene A. Mendez , Jinliang Hou

Surveys for nearby low-luminosity dwarfs tend to avoid the crowded regions of the Galactic Plane. We have devised near-infrared colour-magnitude and colour-colour selection criteria designed to identify late-type M and early-type L dwarfs…

Astrophysics · Physics 2009-11-10 I. Neill Reid

Using the Position and Proper Motion Extended-L (PPMXL) catalogue, we have used optical and near-infrared colour cuts together with a reduced proper motion cut to find bright M dwarfs for future exoplanet transit studies. PPMXL's low proper…

This paper reports updated results on our systematic mining of the DENIS database for nearby very cool M-dwarfs (M6V-M8V, 2.0<I-J<3.0, photometric distance within 30 pc), We calibrate the DENIS (M_I, I-J) colour-luminosity relationship from…

Distance estimates based on low-resolution spectroscopy and Two Micron All Sky Survey (2MASS) J magnitudes are presented for a large sample of 322 nearby candidates from Luyten's NLTT catalogue. Mainly relatively bright (typically 7 < K_s <…

Astrophysics · Physics 2009-11-13 Ralf-Dieter Scholz , Helmut Meusinger , Hartmut Jahreiß

M dwarfs constitute more than 70% of the stars in the solar neighborhood. They are cooler and smaller than Sun-like stars and have less-massive disks which suggests that planets around these stars are more likely to be Neptune-size or…

Earth and Planetary Astrophysics · Physics 2013-10-31 Mahmoudreza Oshagh , Nader Haghighipour , Nuno C. Santos

M dwarfs are the most common type of star in the Galaxy, and because of their small size are favored targets for searches of Earth-sized transiting exoplanets. Current and upcoming all-sky spectroscopic surveys, such as the Large Sky Area…

Solar and Stellar Astrophysics · Physics 2020-04-15 Brianna Galgano , Keivan Stassun , Barbara Rojas-Ayala

We have identified two late M dwarfs within 10 parsecs of the Sun, by cross-correlating the Luyten NLTT catalogue of stars with proper motions larger than 0.18 arcsec/yr, with objects lacking optical identification in the 2MASS data base.…

Astrophysics · Physics 2009-11-07 Mark J. McCaughrean , Ralf-Dieter Scholz , Nicolas Lodieu

While M dwarfs are the most abundant stars in the Milky Way, there is still large uncertainty about their basic physical properties (mass, luminosity, radius, etc.) as well as their formation environment. Precise knowledge of multiplicity…

Solar and Stellar Astrophysics · Physics 2015-05-19 C. Bergfors , W. Brandner , M. Janson , S. Daemgen , K. Geissler , T. Henning , S. Hippler , F. Hormuth , V. Joergens , R. Köhler

We present a catalog of near-infrared (NIR) spectra and associated measurements for 886 nearby M dwarfs. The spectra were obtained with the NASA-Infrared Telescope Facility SpeX Spectrograph during a two-year observing campaign; they have…

Solar and Stellar Astrophysics · Physics 2015-09-30 Ryan C. Terrien , Suvrath Mahadevan , Rohit Deshpande , Chad F. Bender

We present a tally of Milky Way late-type dwarf stars in 68 WFC3 pure-parallel fields (227 arcmin^2) from the Brightest of Reionizing Galaxies (BoRG) survey for high-redshift galaxies. Using spectroscopically identified M-dwarfs in two…

We report the discovery of twenty-one hitherto unknown bright southern ultracool dwarfs with spectral types in the range M7 to L5.5, together with new observations of a further three late M dwarfs previously confirmed. Three more objects…

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