========================================================================== II/289 LDN 1688 JKH photometry (Wilking+, 2008) The following files can be converted to FITS (extension .fit .fgz or .fiZ) table1.dat refs.dat ========================================================================== Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/289 ==========================================================================
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Beginning of ReadMe : II/289 JKH photometry in LDN 1688 (Wilking+, 2008) ================================================================================ Star Formation in the rho Ophiuchi Molecular Cloud. Wilking B.A., Gagne M., Allen L.E. <Astron. Soc. Pac. Monograph Publications, 5, 351-380 (2008)> ================================================================================ ADC_Keywords: Molecular clouds ; Photometry, infrared ; Cross identifications Abstract: A review of star formation in the Rho Ophiuchi molecular complex is presented, with particular emphasis on studies of the main cloud, L1688, since 1991. Recent photometric and parallax measurements of stars in the Upper Scorpius subgroup of the Sco-Cen OB association suggest a distance for the cloud between 120 and 140 parsecs. Star formation is ongoing in the dense cores of L1688 with a median age for young stellar objects of 0.3Myr. The surface population appears to have a median age of 2-5Myr and merges with low mass stars in the Upper Scorpius subgroup. Making use of the most recent X-ray and infrared photometric surveys and spectroscopic surveys of L1688, we compile a list of over 300 association members with counterparts in the 2MASS catalog. Membership criteria, such as lithium absorption, X-ray emission, and infrared excess, cover the full range of evolutionary states for young stellar objects. Spectral energy distributions are classified for many association members using infrared photometry obtained from the Spitzer Space Telescope.