Far-infrared and radio observations of DR 6, DR 7, and DR 22

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164325· OSTI ID:7259423

Odenwald, S; Shivanandan, K; Schwartz, P; Campbell, M; Fazio, G; Moseley, H

Far-infrared maps are presented for three young H II regions in the Cygnus X region. DR 6 and 7 were mapped in the wavelength band from 40 to 250 microns at 1 arcmin resolution, while DR 22 was mapped in the same band and also at 100-250 microns, providing dust temperature and optical depth information. New VLA maps of these sources are also presented. It is concluded that DR 6 and 7 are powered by clusters of late O or early B type stars, with ages 100,000 yr or less, while DR 22 appears to be produced by a single O6 ZAMS star. Existing (C-12)O maps suggest that the formation of these objects occurred near the edges of molecular clouds. 24 references.

• Research Organization: E. O. Hulburt Center for Space Research, Washington, DC; Sachs/Freeman Associates, Inc., Bowie, MD; Colby College, Waterville, ME; Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; NASA, Goddard Space Flight Center, Greenbelt, MD
• OSTI ID: 7259423
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 306; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC DUST
COSMIC GASES
COSMIC RADIO SOURCES
DUSTS
ELECTROMAGNETIC RADIATION
FAR INFRARED RADIATION
FLUIDS
GASES
H2 REGIONS
INFRARED RADIATION
INFRARED SPECTRA
MAPS
MOLECULES
RADIATIONS
RADIOWAVE RADIATION
SPECTRA
STARS
TEMPERATURE DISTRIBUTION