ISOPHOT Maps of NGC 6946 in the range λ 60-200μm.

November 1996 • 1996A&A...315L.149T

Authors • Tuffs, R. J. • Lemke, D. • Xu, C. • Davies, J. I. • Gabriel, C. • Heinrichsen, I. • Helou, G. • Hippelein, H. • Lu, N. Y. • Skaley, D.

Abstract • We present maps of NGC 6946 at λ 61 and 205μm as well as scans through the galaxy at these and at 8 intermediate wavelengths. The bulk of the FIR luminosity arises from a diffuse disk component which extends beyond the 25mag/arcsec^2^ B isophote to at least the radius corresponding to the sensitivity limit. A FIR emission counterpart to the outlying HI disk is seen at both 61 and 205μm, for which a dust to HI mass ratio of 0.0046 is inferred from the 205μm brightness assuming a dust temperature of 15K. The disk scale length at both λ 61 and 205μm is similar to that seen in R-band.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=1996A%26A...315L.149T
• NED https://ned.ipac.caltech.edu/uri/NED::InRefcode/1996A%26A...315L.149T
• DATA http://nida.esac.esa.int/nida-cl-web/?ACTION=OBSERVATION&ID=05302401
• DATA http://nida.esac.esa.int/nida-cl-web/?ACTION=OBSERVATION&ID=05302402
• GIF http://articles.adsabs.harvard.edu/full/1996A%26A...315L.149T
• ARTICLE http://articles.adsabs.harvard.edu/full/1996A%26A...315L.149T?defaultprint=YES