Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...257..570r&link_type=abstract
Astrophysical Journal, Part 1, vol. 257, June 15, 1982, p. 570-577. NASA-NSF-supported research.
Astronomy and Astrophysics
Astrophysics
29
Cosmic Dust, Galactic Radiation, Infrared Spectrophotometers, Near Infrared Radiation, Seyfert Galaxies, Luminosity, Radiant Flux Density, Stellar Radiation, Thermal Emission
Scientific paper
Low-resolution spectrophotometry from 2 to 4 microns is reported for the four Seyfert 1 galaxies Mrk 335, 3C 120, Mrk 509, NGC 7469, and the peculiar emission-line galaxy NGC 1275. The spectrum of NGC 7469 exhibits a strong 3.3-micron dust feature, indicating a thermal origin for the bulk of its considerable nonstellar infrared emission. NGC 1275 has a large stellar contribution to its infrared flux at wavelengths shortward of 3 microns. The spectrum from 3 to 4 microns fits a power law which fits the 10-micron and 20-micron broad bands, as well. A thermal model which can explain the spectrum of NGC 1275 is discussed. Mrk 335 displays a complex spectrum suggestive of thermal dust emission. 3C 120 and Mrk 509 have nonstellar infrared emission shortward of 2 microns, but the data are ambiguous as to whether this emission is thermal or nonthermal in origin.
Jones Barbara
Levan Paul D.
Puetter Richard C.
Rudy Richard J.
Smith Harding E.
No associations
LandOfFree
Near-infrared spectrophotometry of four Seyfert 1 galaxies and NGC 1275 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Near-infrared spectrophotometry of four Seyfert 1 galaxies and NGC 1275, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near-infrared spectrophotometry of four Seyfert 1 galaxies and NGC 1275 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1351656