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For refcode 1992MNRAS.259..709C:
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Copyright by Royal Astronomical Society. 1992MNRAS.259..709C On the origin of the radio emission in IRAS galaxies with high and ultrahigh luminosity: the starburst-AGN controversy Luis Colina and Diego Perez-Olea Departamento de Fisica Teorica, Modulo C-XI, Universidad Autonoma de Madrid, Cantoblanco, 28049 Madrid, Spain Accepted 1992 June 7. Received 1992 June 4; in original form 1992 January 20 ABSTRACT In the scenario of a violent nuclear/circumnuclear starburst, the radio luminosity detected in high-luminosity (HLIRG) and ultraluminous (ULIRG) IRAS galaxies is explained as non-thermal radio emission generated in radio supernovae and their remnants, created in an ongoing massive starburst process. These supernovae and their remnants must have peak radio luminosities 100 to 1000 times the luminosity of Cas A, and thus be radio hypernovae. The presence of radio hypernovae in a circumnuclear starburst naturally explains the radio excess observed in these regions with respect to disc H II regions, and the FIR-radio luminosity relation. Considering the empirical radio luminosity curve of the well-monitored radio hypernova SN1979c, supernova rates {UPSILON}_SNII_~ 0.7-3 and ~1.5-10 yr^-1^ are predicted for HLIRG and ULIRG, respectively. The observed far-infrared (FIR) luminosity, q parameter and emission- line luminosities are best accounted for by a starburst characterized by a Salpeter initial mass function (IMF), with upper mass limit M_u_ = 60 M_sun_. If the lower mass limit M_1_ = 3 M_sun_, the star formation rate corresponds to ~40-150 and ~80-500 M_sun_yr^-1^ for HILRG and ULIRG, respectively. The FIR spectral energy distribution of HLIRG and ULIRG differs from that of starburst galaxies and active galactic nuclei (AGN). It is consistent with blackbody dust reradiation at a lower temperature than in normal starbursts. Although there is evidence, at least in some sample galaxies like Mrk 231 or NGC 7469, for an AGN, the radio and hard X-ray luminosities indicate that this will not, in general, be a luminous QSO. Thus the central AGN will not be the main heating and ionizing source in these galaxies. Key words: galaxies: active - galaxies: nuclei - galaxies: starburst - galaxies: Seyfert - infrared: galaxies - radio continuum: galaxies. ======================================================================= 1993MNRAS.262..543C Corrigendum: On the origin of the radio emission in IRAS galaxies with high and ultrahigh luminosity: the starburst-AGN controversy by Luis Colina and Diego Perez-Olea Key words: galaxies: active - galaxies: nuclei - galaxies: Seyfert - galaxies: starburst - infrared: galaxies - radio continuum: galaxies. The paper `On the origin of the radio emission in IRAS galaxies with high and ultrahigh luminosity: the starburst- AGN controversy' was published in Mon. Not. R. Astron. Soc.259, 709-724(1992). The values listed in the second column of table 1 (a) of that paper do not correspond to the spectral index {alpha}(60,25). As a consequence, the points representing the high-luminosity IRAS galaxies (HLIRG) in fig. 3 need to be increased by a positive offset in the vertical coordinate. Note also that the mean {alpha}(60,25) but -2.33 +/- 0.47. These changes do not affect the conclusions of the paper. The correct {alpha}(60,25) values for HLIRG and the corresponding corrected fig. 3 are presented below. See Journal.
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