Far-infrared image restoration analysis of the protostellar cluster in S140

Journal Article · Wed Oct 01 00:00:00 EDT 1986 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164580· OSTI ID:6640877

Lester, D F; Harvey, P M; Joy, M; Ellis, Jr, H B

Image restoration techniques are applied to one-dimensional scans at 50 and 100 microns of the protostellar cluster in S140. These measurements resolve the surrounding nebula clearly, and Fourier methods are used to match the effective beam profiles at these wavelengths. This allows the radial distribution of temperature and dust column density to be derived at a diffraction limited spatial resolution of 23 arcsec (0.1 pc). Evidence for heating of the S140 molecular cloud by a nearby ionization front is established, and the dissociation of molecules inside the ionization front is spatially well correlated with the heating of the dust. The far-infrared spectral distribution of the three near-infrared sources within 10 arcsesc of the cluster center is presented. 22 references.

• Research Organization: McDonald Observatory, Austin, TX
• OSTI ID: 6640877
• Journal Information: Astrophys. J.; (United States), Vol. 309
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
STAR CLUSTERS
FAR INFRARED RADIATION
PROTOSTARS
COSMIC DUST
COSMIC GASES
ENERGY SPECTRA
HEATING
IMAGE PROCESSING
IONIZATION
NEBULAE
STAR EVOLUTION
DUSTS
ELECTROMAGNETIC RADIATION
FLUIDS
GASES
INFRARED RADIATION
PROCESSING
RADIATIONS
SPECTRA
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources