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Related papers: New neighbours: V. 35 DENIS late-M dwarfs between …

200 papers

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

We present initial results of an all-sky search for late-type dwarfs within 20 pc of the Sun using the New Luyten Two-Tenths (NLTT) catalog cross-referenced with the 2-Micron All Sky Survey (2MASS) database. The results were obtained with…

Astrophysics · Physics 2009-11-07 Kelle L. Cruz , I. Neill Reid

A list of 4,131 dwarfs, subgiants, and giants located, or suspected to be located, within 33 parsecs of the Sun is presented. All the stars are drawn from the new LSPM-north catalog of 61,976 stars with annual proper motions larger than…

Astrophysics · Physics 2008-11-26 Sebastien Lepine

We present the photometric properties of 2210 newly identified dwarf galaxy candidates in the MATLAS fields. The Mass Assembly of early Type gaLAxies with their fine Structures (MATLAS) deep imaging survey mapped $\sim$142 deg$^2$ of the…

We report on our analysis of HST/NICMOS snapshot high resolution images of 255 stars in 201 systems within ~10 parsecs of the Sun. Photometry was obtained through filters F110W, F180M, F207M, and F222M using NICMOS Camera 2. These filters…

Solar and Stellar Astrophysics · Physics 2015-06-05 Sergio B. Dieterich , Todd J. Henry , David A. Golimowski , John E. Krist , Angelle M. Tanner

We present an all-sky catalog of M dwarf stars with apparent infrared magnitude J<10. The 8,889 stars are selected from the ongoing SUPERBLINK survey of stars with proper motion >40 mas/yr, supplemented on the bright end with the TYCHO-2…

Solar and Stellar Astrophysics · Physics 2015-05-30 Sébastien Lépine , Eric Gaidos

AIMS: We contribute to improving the census of cool brown dwarfs (late-T and Y dwarfs) in the immediate solar neighbourhood. METHODS: By combining near-infrared (NIR) data of UKIDSS with mid-infrared WISE and other available NIR (2MASS) and…

Solar and Stellar Astrophysics · Physics 2015-06-04 Ralf-Dieter Scholz , Gabriel Bihain , Olivier Schnurr , Jesper Storm

Five new objects with proper motions between 1.0 arcsec/yr and 2.6 arcsec/yr have been discovered via a new RECONS search for high proper motion stars utilizing the SuperCOSMOS Sky Survey. The first portion of the search, discussed here, is…

Astrophysics · Physics 2009-11-10 N. C. Hambly , T. J. Henry , J. Subasavage , M. Brown , W. -C. Jao

We present initial results of our effort to create a statistically robust, volume-limited sample of ultracool dwarfs from the 2MASS Second Incremental Data Release. We are engaged in a multifaceted search for nearby late-type dwarfs and…

The aim of the project is to find the stars nearest to the Sun and to contribute to the completion of the stellar and substellar census of the solar neighbourhood. We identified a new late-M dwarf within 5 pc, looking for high proper motion…

Solar and Stellar Astrophysics · Physics 2017-01-13 A. Perez-Garrido , N. Lodieu , V. J. S. Bejar , M. T. Ruiz , B. Gauza , R. Rebolo , M. R. Zapatero Osorio

28 hitherto neglected candidates for the Catalogue of Nearby Stars (CNS) were investigated to verify their classification and to improve their distance estimates. All targets had at least a preliminary status of being nearby dwarf stars…

Astrophysics · Physics 2009-11-13 H. Jahreiss , H. Meusinger , R. -D. Scholz , B. Stecklum

Recent wide-field near-infrared surveys have uncovered a large number of cool brown dwarfs, extending the temperature sequence down to less than 500 K and constraining the faint end of the luminosity function. One interesting implication of…

We present 160 new trigonometric parallaxes for 151 M dwarf systems from the REsearch Consortium On Nearby Stars (RECONS) group's long-term astrometry/photometry program at the CTIO/SMARTS 0.9m telescope. Most systems (124 or 82%) are found…

We present 2817 new southern proper motion systems with 0.40 "/yr > mu > 0.18 "/yr and declination between -47 degrees and 00 degrees. This is a continuation of the SuperCOSMOS-RECONS (SCR) proper motion searches of the southern sky. We use…

Solar and Stellar Astrophysics · Physics 2015-05-27 Mark R. Boyd , Jennifer G. Winters , Todd J. Henry , Wei-Chun Jao , Charlie T. Finch , John P. Subasavage , Nigel C. Hambly

We present spectra for 33 previously unclassified white dwarf systems brighter than V = 17 primarily in the southern hemisphere. Of these new systems, 26 are DA, 4 are DC, 2 are DZ, and 1 is DQ. We suspect three of these systems are…

AIMS: Using Wide-field Infrared Survey Explorer (WISE) data and previous optical and near-infrared sky surveys, we try to identify still missing stellar and substellar neighbours of the Sun. METHODS: When checking the brightest red WISE…

Solar and Stellar Astrophysics · Physics 2015-06-17 Ralf-Dieter Scholz

We report trigonometric parallaxes for 134 low mass stars and brown dwarfs, of which 38 have no previously published measurement and 79 more have improved uncertainties. Our survey targeted nearby targets, so 119 are closer than 30 pc. Of…

Solar and Stellar Astrophysics · Physics 2016-07-06 A. J. Weinberger , A. P. Boss , S. A. Keiser , G. Anglada-Escudé , I. B. Thompson , G. Burley

Parallaxes, proper motions, and optical photometry are presented for 51 systems made up 37 cool subdwarf and 14 additional high proper motion systems. Thirty-seven systems have parallaxes reported for the first time, 15 of which have proper…

Solar and Stellar Astrophysics · Physics 2017-10-25 Wei-Chun Jao , Todd Henry , Jennifer Winters , John Subasavage , Adric Riedel , Michele Silverstein , Phillip Ianna

We present the discovery of a previously unknown very nearby star - LHS 2090 at a distance of only d=6 pc. In order to find nearby (i.e. d < 25 pc) red dwarfs, we re-identified high proper motion stars ($\mu >$ 0.18 arcsec/yr) from the NLTT…

Astrophysics · Physics 2016-08-30 R. -D. Scholz , H. Meusinger , H. Jahreiß

Using data from the 2MASS All-Sky Point Source Catalogue, we have extended our census of nearby ultracool dwarfs to cover the full celestial sphere above Galactic latitute 15 degrees. Starting with an initial catalogue of 2,139,484 sources,…