4 papers
ISOPHOT CIRB project: FIR source counts at 90, 150 and 180 um
M. Juvela, K. Mattila, D. Lemke
Far-infrared maps obtained with ISOPHOT have been searched for point-like sources. The majority of the 55 sources is believed to be extragalactic and in most cases no previously kn…
Cirrus spectra of low surface brightness regions
M. Juvela, K. Mattila, D. Lemke
We have studied the galactic cirrus in low surface brightness regions using ISOPHOT raster maps at 90, 150 and 180um. Observations are used to determine dust emission spectra and d…
Far infrared extragalactic background radiation: I. Source counts with ISOPHOT
M. Juvela, K. Mattila, D. Lemke
As a part of the ISOPHOT CIRB (Cosmic Infrared Background Radiation) project we have searched for point-like sources in eight fields mapped at two or three wavelengths between 90 a…
Detection of widely distributed UIR band emission in the disk of NGC 891
K. Mattila, K. Lehtinen, D. Lemke
The spectrum of the unidentified infrared (UIR) emission bands between 5.9 and 11.7 [micro]m has been observed for the first time in the disk of an external galaxy. We have used th…