Spectroscopic and photometric characteristics of stars in the field of the cluster vdB 130статья

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[1] Spectroscopic and photometric characteristics of stars in the field of the cluster vdb 130 / A. A. Tatarnikova, A. M. Tatarnikov, T. G. Sitnik, O. V. Egorov // Astronomy Letters. — 2016. — Vol. 42, no. 12. — P. 790–799. The observational data for 24 stars toward the young cluster vdB 130 are analyzed. The spectroscopic and photometric BV RIJHK observations have been carried out with the following telescopes: 6-m at the Special Astrophysical Observatory of the Russian Academy of Sciences, 60-cm at the Southern Station of the Moscow State University, and 2.5-m at the Caucasus Observatory of the Sternberg Astronomical Institute of theMoscow State University. Nine stars previously selected as cluster members have been found to belong to different subtypes of type B. A minimum color excess toward the cluster, E( B - V) = 0.9 mag, has been revealed for the vdB 130 stars lying outside the molecular cloud. Maximum color excesses, E( B - V) = 1.3-1.4 mag, have been found in the spectra of cluster stars 1r and 5r observed in dust blobs. Inside the cluster R v is shown to differ from the standard one. The overwhelming majority of the remaining investigated stars belong to late types and have minor color excesses (≤0.3) typical of close distances. [ DOI ]

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