2002/05/27 by Fraser Clarke, F. J. Clarke, Rebecca Oppenheimer +2 · 1 citation
Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Astrophysics and Star Formation Studies #Brown dwarf #Photometry (optics) #Physics #Stars #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1046/j.1365-8711.2002.05691.x
published as Mon.Not.Roy.Astron.Soc. 335 (2002) 1158 · 5 pages. MNRAS, in press
arxiv created 2002/05/27 · openalex publication_date 2002/10/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report differential I-band photometry of four early L dwarfs, obtained to study variability. We detect variability on a time-scale of hours in two objects, 2MASS 0746425+200032 (at a level of 0.007 mag = 6.5σ) and 2MASS 1108307+683017 (0.012 mag; 5σ). We also place upper limits of 0.02 mag (1σ) on the variability of two others.