2MASS wide field extinction maps: II. The Ophiuchus and the Lupus cloud complexe

Abstract

We present an extinction map of a ~1,700 deg sq region that encloses the Ophiuchus, the Lupus, and the Pipe dark complexes using 42 million stars from the Two Micron All Sky Survey (2MASS) point source catalog. The use of a robust and optimal near-infrared method to map dust column density (Nicer, described in Lombardi & Alves 2001) allow us to detect extinction as low as A_K = 0.05 mag with a 2-sigma significance, and still to have a resolution of 3 arcmin on our map. We also present a novel, statistically sound method to characterize the small-scale inhomogeneities in molecular clouds. Finally, we investigate the cloud structure function, and show that significant deviations from the results predicted by turbulent models are observed.

16 pages, A&A in press

References in corpus (18)

• The Wavelength Dependence of Interstellar Extinction from 1.25 to 8.0 microns Using GLIMPSE Data
• The Universality of the Stellar IMF
• Density probability distribution in one-dimensional polytropic gas dynamics
• Mapping the interstellar dust with near-infrared observations: An optimized multi-band technique
• ISOCAM observations of the rho Ophiuchi cloud: Luminosity and mass functions of the pre-main sequence embedded cluster
• 2MASS wide field extinction maps - I. The Pipe nebula
• On the Density Probability Function of Galactic Gas. I. Numerical Simulations and the Significance of the Polytropic Index
• Supersonic turbulence in the ISM: stellar extinction determinations as probes of the structure and dynamics of dark clouds
• Hipparcos distances of Ophiuchus and Lupus cloud complexes
• An unbiased search for the signatures of protostars in the rho Ophiuchi Molecular Cloud. II. Millimetre continuum observations
• Kolmogorov-Burgers Model for Star Forming Turbulence
• Scaling relations of supersonic turbulence in star-forming molecular clouds
• The Probability Distribution Function of Column Density in Molecular Clouds
• From Dusty Filaments to Cores to Stars: An Infrared Extinction Study of Lupus 3
• Structure Function Scaling of a 2MASS Extinction Map of Taurus
• Optimal column density measurements from multiband near-infrared observations
• Molecular Clouds Around a Run-away O Star, zeta Oph
• Interpolation and smoothing

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