2MASS Two-Color Interstellar Reddening Lines: the Band-Width Effect

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dc.creatorStraizys, V.
dc.creatorLazauskaite, R.
dc.date2009-02-06
dc.date.accessioned2026-07-07T12:38:58Z
dc.date.available2026-07-07T12:38:58Z
dc.descriptionThe band-width effect on interstellar reddening lines in the J-H vs. H-K_s diagram of the 2MASS survey is investigated using synthetic color indices and color excesses based on the Kurucz model atmospheres. At large interstellar reddenings (E(H-K_s) larger than 1.0) reddening lines deviate considerably from a straight line. The lines can be approximated by an equation: E(J-H) = r E(H-K_s) + s E(H-K_s)^2, where the slope coefficient, r, and the curvature coefficient, s, depend slightly on the intrinsic energy distribution of the source. The curvature of the reddening lines is confirmed by the J-H vs. H-K_s diagrams plotted by Straizys and Laugalys (2008) from 2MASS observations.
dc.description6 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0902.1154
dc.identifierhttp://arxiv.org/abs/0902.1154
dc.identifierBaltic Astronomy, vol. 17, 277-282, 2008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218950
dc.subjectAstrophysics of Galaxies
dc.title2MASS Two-Color Interstellar Reddening Lines: the Band-Width Effect
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