Survey of the ISM in early-type galaxies
dc.contributor.author | Ferrari, Fabricio | pt_BR |
dc.contributor.author | Pastoriza, Miriani Griselda | pt_BR |
dc.contributor.author | Macchetto, Ferdinando Duccio | pt_BR |
dc.contributor.author | Bonatto, Charles Jose | pt_BR |
dc.contributor.author | Panagia, Nino | pt_BR |
dc.contributor.author | Sparks, William B. | pt_BR |
dc.date.accessioned | 2014-07-24T02:04:22Z | pt_BR |
dc.date.issued | 2002 | pt_BR |
dc.identifier.issn | 0004-6361 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/98512 | pt_BR |
dc.description.abstract | We present mid-IR photometric properties for a sample of 28 early-type galaxies observed at 6.75, 9.63 and 15 m with the ISOCAM instrument on board the ISO satellite. We nd total mid-IR luminosities in the range (3−42) x 108 Lʘ. The spectral energy distributions (SED) of the galaxies were derived using the mid-IR data together with previously published UV, optical and near-IR data. These SEDs clearly show a mid-IR emission coming from dust heated at T- ~ 260 K. Dust grains properties are inferred from the mid-IR colors. The masses of the hot dust component are in the range 10−400 Mʘ . The relationship between the masses derived from mid-IR observations and those derived from visual extinction are discussed. The possible common heating source for the gas and dust is investigated through the correlations between H and mid-IR luminosities. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Astronomy and astrophysics. Les Ulis. Vol. 389, no. 2 (July 2002), p. 355-366 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Fotometria astronômica | pt_BR |
dc.subject | Galaxies: elliptical and lenticular, cD | en |
dc.subject | Galáxias | pt_BR |
dc.subject | ISM: general | en |
dc.subject | Fontes de infravermelho | pt_BR |
dc.subject | Materia interestelar | pt_BR |
dc.title | Survey of the ISM in early-type galaxies | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000323880 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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