Discovery of a nearby M9 dwarf

Abstract

We report the discovery of a new M9.0 dwarf at only 8.2 pc, which we identified in our search for nearby ultracool dwarf (I-J >= 3.0, later than M8.0) in the DENIS database. We measure a very high proper motion of 2.5 arc-sec/yr. The PC3 index measured from its low-resolution spectrum gives a spectrophotometric distance of 8.2 pc. This makes it the third closest M9.0 dwarf.

revised version, accepted by MNRAS Letters

References in corpus (12)

• Astrometry and Photometry for Cool Dwarfs and Brown Dwarfs
• Towards Spectral Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and Analysis
• Meeting the Cool New Neighbors V: A 2MASS-Selected Sample of Ultracool Dwarfs
• Binarity in Brown Dwarfs: T Dwarf Binaries Discovered with the Hubble Space Telescope WPFC2
• A search for L dwarf binary systems
• Meeting the Cool Neighbors III: Spectroscopy of Northern NLTT Stars
• Discovery of a Bright Field Methane (T-type) Brown Dwarf by 2MASS
• Discovery of a New Nearby Star
• New neighbours: IV. 30 DENIS late-M dwarfs between 15 and 30 parsecs
• Constraints to the Masses of Brown Dwarf Candidates from the Lithium Test
• New neighbours: V. 35 DENIS late-M dwarfs between 10 and 30 parsecs
• New neighbours VI. Spectroscopy of DENIS nearby stars candidates

Cited by in corpus (12)

• Fundamental Parameters and Spectral Energy Distributions of Young and Field Age Objects with Masses Spanning the Stellar to Planetary Regime
• The Brown Dwarf Kinematics Project (BDKP) I. Proper Motions and Tangential Velocities for a Large Sample of Late-type M, L and T Dwarfs
• A Volume-limited Sample of 63 M7-M9.5 Dwarfs II. Activity, magnetism, and the fade of the rotation-dominated dynamo
• The 10 parsec sample in the Gaia era
• Photometry and Proper Motions of M, L, and T Dwarfs from the Pan-STARRS1 3$\pi$ Survey
• Spectroscopic rotational velocities of brown dwarfs
• A Volume-Limited Sample of Ultracool Dwarfs. I. Construction, Space Density, and a Gap in the L/T Transition
• A Volume-limited Sample of 63 M7--M9.5 Dwarfs I. Space Motion, Kinematic Age, and Lithium
• Space Velocities of L- and T-type Dwarfs
• The Ultracool SpeXtroscopic Survey. I. Volume-Limited Spectroscopic Sample and Luminosity Function of M7$-$L5 Ultracool Dwarfs
• WISE J072003.20-084651.2: An Old and Active M9.5 + T5 Spectral Binary 6 pc from the Sun
• Detection of lithium in nearby young late-M dwarfs