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Reddening, distance, and stellar content of the young open cluster Westerlund 2

Hur, Hyeonoh; Park, Byeong-Gon; Sung, Hwankyung; Bessell, Michael; Lim, Beomdu; Chun, Moo-Young; Sohn, Sangmo T

Description

We present deep UBVIC photometric data of the young open cluster Westerlund 2. An abnormal reddening law of RV, cl = 4.14 ± 0.08 was found for the highly reddened early-type members (E(B−V)≧1.45E(B−V)≧1.45), whereas a fairly normal reddening law of RV, fg = 3.33 ± 0.03 was confirmed for the foreground early-type stars (E(B − V)fg < 1.05). The distance modulus was determined from zero-age main-sequence fitting to the reddening-corrected colour–magnitude diagram of the early-type members to be V0...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/152556
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stu2329
Access Rights: Open Access

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