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ISOCAM observations of the deep IRAS 60 micron sample in the NEP region. II. Comparison of ISO and IRAS galaxy counts
Aussel, H.; Franceschini, A.; De Zotti, G. +3 more
We have determined IRAS flux densities at positions of sources detected by our ISOCAM LW3 observations of the IRAS deep survey sample in the north ecliptic polar region [ApJS 63 (1987) 311]. Exploiting the higher angular resolution of ISOCAM to deal with confusion effects and properly correcting the fluxes for observational biases, we show that 60…
The spectrum of HD46223
Zagury, Frédéric
The spectrum of HD46223 was established from the optical to the far UV and normalized by the spectrum of a non-reddened star of same spectral type. The resulting spectrum is separated into two components. One is the direct starlight. The second is an additional component of light scattered at small angles. In the optical the spectrum is dominated …
Scattered starlight contamination in the spectrum of reddened stars
Zagury, Frédéric
The comparison, undertaken in preceding papers, of the UV observations of nebulae and of reddened stars reveals contradictory aspects of interstellar extinction. The aim of this paper is to understand the implications hidden behind the apparent contradictions. The questions treated will be: how can small grains with an isotropic phase function mak…