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Paper: On the Nature of NVSS J151550-370913, the Galaxy Close to the Planet Host Star SAO206462
Volume: 472, New Quests in Stellar Astrophysics III: A Panchromatic View of Solar-like Stars, With and Without Planets
Page: 63
Authors: Zavala, J.; López-Valdivia, R.; Gudiño, M.; Santamaría, I.; Bertone, E.; Chavez, M.; Chavushyan, V.; Ramos-Larios, G.; Vega, O.
Abstract: We have investigated on the nature of the radio source near the star SAO206462. Although several recent efforts concluded that the galaxy does not significantly pollute the prominent IR flux of the star, we consider convenient to establish the properties of the galaxy and explore a method that can be used when a stellar FIR image is polluted by background extragalactic objects. Using archival data available from 2MASS, WISE and radio at 1.4 GHz, we conducted a comparison with the spectral energy distributions of a set of galaxy templates of different morphologies. Through a spectral energy distribution (SED) fitting method we have determined the galaxy photometric redshift, zphot∼ 0.1, its IR luminosity, LIR∼ 4 x 1011L, and the star formation rate, 53 M/yr. These properties, in addition to the possible presence of an obscured AGN, are consistent with the typical scenarios that characterize local luminous IR galaxies (LIRGs).
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