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Paper: The Interstellar Reddening Law within 3kpc from the Sun
Volume: 482, 10th Pacific Rim Conference on Stellar Astrophysics
Page: 275
Authors: Sung, H.; Bessell, M. S.
Abstract: We have investigated the interstellar reddening law of young open clusters within 3kpc from the Sun using optical, near-IR 2MASS, and Spitzer IRAC data. The total-to-selective extinction ratio RV of 162 young open clusters (log tage 7.3) listed in the open cluster database WEBDA were determined from their color excess ratios. The young open clusters in the Sgr-Car arm show a relatively high value (RV3.2), those in the Per arm and in the Cygnus region have a smaller value (RV2.9), and those in the Mon-CMa regions have a nearly normal value (RV3.1).
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