A new strongly X-ray flaring M 9 dwarf in the solar neighborhood

2003/11/03 by V. Hambaryan, A. Staude, A. D. Schwope +5 · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Gamma-ray bursts and supernovae #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1051/0004-6361:20034378

published as Astron.Astrophys. 415 (2004) 265-272 · 8 pages, 5 figures. A&A, accepted

arxiv created 2003/11/03 · openalex publication_date 2004/02/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We report on the discovery of a very low mass (VLM) star in the solar neighborhood, originally identified as an optical counterpart of a flaring X-ray source detected in the ROSAT All-Sky survey. Optical spectroscopy and infrared photometry consistently reveal a spectral type of and a distance of ≈ pc. The optical counterpart of 1RXS J115928.5-524717 shows a large proper motion of /year. 1RXS J115928.5-524717 is the fourth object among the VLM stars displaying a huge X-ray flare, reaching the unprecedent value of .

Citations

• Meeting the Cool Neighbors. IV. 2MASS 1835+32, a Newly Discovered M8.5 Dwarf within 6 Parsecs of the Sun

Cited by

• X-ray emission from a brown dwarf in the Pleiades
• Quiescent Radio Emission from Southern Late‐Type M Dwarfs and a Spectacular Radio Flare from the M8 Dwarf DENIS 1048−3956
• Lithium in LP 944−20★