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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Astronomija / Astronomy (N008)
Author(s): Straižys, Vytautas;Lazauskaitė, Romualda
Title: 2Mass two-color interstellar reddening lines: the band-width effect
Is part of: Baltic astronomy. , Vol.17, no. 3/4 (2008)
Extent: p. 277-282
Date: 2008
Keywords: ISM: extinction;Stars: fundamental parameters;Photometric systems: infrared 2MASS
Abstract: The band-width effect on interstellar reddening lines in the J-H vs. H-Ks diagram of the 2MASS survey is investigated using synthetic color indices and color excesses based on the Kurucz model atmospheres. At large interstellar reddenings {EH-KS > 1-0) reddening lines deviate considerably from a straight line. The lines can be approximated by a parabolic equation: EJ-H = rEH-Ks + S^H-KS where the slope coefficient, r, and the curvature coefficient, 5, depend slightly on the intrinsic energy distribution of the source. The curvature of the reddening lines is confirmed by the J-H vs. H-Ks diagrams plotted by Straižys and Laugalys (2008) from 2MASS observations
Affiliation(s): Vilniaus universiteto Teorinės fizikos ir astronomijos institutas
Vilniaus universiteto Teorinės fizikos ir astronomijos institutas,
Vytauto Didžiojo universitetas
Švietimo akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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