Optical, infrared and radio observations of two HII regions

Details Optical, infrared and radio observations of two HII regions Optical, infrared and radio observations of two HII regions

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974hrgc.conf...23b&link_type=abstract

H II regions and the galactic centre : proceedings of the Eighth ESLAB Symposium, 4-7 June 1974, Frascati, Italy, p. 23-33 (SEE

Astronomy and Astrophysics

Astronomy

4

Astronomical Photography, Hydrogen Clouds, Infrared Photography, Nebulae, Radio Astronomy, Bubbles, Cosmic Dust, Infrared Astronomy, Infrared Radiation, Light Scattering, Stellar Radiation

Scientific paper

A series of broad and narrow-band photographs of the H II regions NGC 7635/Sh 162 and IC 1470 are presented. In addition to the well-known bubble, a second shell is found to be present in NGC 7635/Sh 162. A 5 GHz map showing the large scale structure of NGC 7635/Sh 162 is presented. The nebular continuum was measured at several places in each nebula and is shown to be due to dust-scattered starlight. From the scattered-light continuum observations and the variations in extinction found in both nebulae, a very inhomogeneous dust distribution is found. The relation of the exciting stars to the observed infrared emission is discussed.

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