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http://hdl.handle.net/20.500.12386/33180
Titolo: | Dust Absorption and the Cosmic Ultraviolet Flux Density | Autori: | Massarotti, M. IOVINO, Angela BUZZONI, Alberto |
Data pubblicazione: | 2001 | Rivista: | THE ASTROPHYSICAL JOURNAL | Numero: | 559 | Fascicolo: | 2 | Da pagina:: | L105 | Abstract: | We study the evolution of the galaxy UV luminosity density as a function of redshift in the Hubble Deep Field-North (HDF-N). We estimate the amount of energy absorbed by dust and hidden from optical observations by analyzing the HDF-N photometric data with the spectral energy distribution fitting method. According to our results, at redshifts of 1<=z<=4.5, the global energy observed in the UV rest frame at λ=1500 Å corresponds to only 7%-11% of the stellar energy output, the rest of it being absorbed by dust and reemitted in the far-IR. Our estimates of the comoving star formation rate density in the universe from the extinction-corrected UV emission are consistent with the recent results obtained with Submillimeter Common-User Bolometric Array (SCUBA) at faint submillimeter flux levels. | URI: | http://hdl.handle.net/20.500.12386/33180 | URL: | https://iopscience.iop.org/article/10.1086/323787 http://arxiv.org/abs/astro-ph/0109013v1 |
ISSN: | 0004-637X | DOI: | 10.1086/323787 | Bibcode ADS: | 2001ApJ...559L.105M | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
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