2026-06-29T02:06:13Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/598202023-08-28T10:54:05Zcom_20.500.14352_14col_20.500.14352_15

Iras observations of Hα selected emission-line galaxies Rego Fernández, Manuel Cordero Gracia, M. Zamorano Calvo, Jaime Gallego Maestro, Jesús We present the results of IRAS observations of the UCM (Universidad Complutense de Madrid) sample of emission-line galaxies, which have been selected from wide-dispersion H_α objective-prism plates. These data are intended to provide a convenient summary of the relevant far-infrared (FIR) properties of these galaxies. Color-color diagrams, as interpreted by theoretical models, suggest that emission from UCM galaxies is mainly due to dust heated directly by photons emitted in active star-forming regions. Statistical analysis of some samples, including the IRAS minisurvey and blue-selected objective-prism samples, have been performed. Comparisons, based on FIR luminosity distributions, with the IRAS minisurvey make evident the lower metallicity of the UCM galaxies which cannot be considered as a parent population of IRAS-detected galaxies. The FIR luminosity distributions of different samples have been compared using nonparametric methods and the best correlation has been found for the UCM and Wasilewski samples. Finally, a more detailed analysis of a UCM subsample has been performed from a three component model in order to get information concerning the fractional contribution of disk, star formation activity, and nonthermal mechanisms operating in the UCM galaxies. 2023-06-20T20:12:09Z 2023-06-20T20:12:09Z 2023-06-20T20:12:09Z 1993-02 journal article https://hdl.handle.net/20.500.14352/59820 0004-6256 10.1086/116441 eng PB89-124 open access IOP Publishing ltd