Radio and infrared structures of type I post-main sequence nebulae

Details Radio and infrared structures of type I post-main sequence nebulae Radio and infrared structures of type I post-main sequence nebulae

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...190..237p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 190, no. 1-2, Jan. 1988, p. 237-258. Research supported by the Science Researc

Astronomy and Astrophysics

Astronomy

32

Astronomical Maps, Infrared Sources (Astronomy), Nebulae, Radio Sources (Astronomy), Infrared Astronomy Satellite, Photographic Plates, Very Large Array (Vla)

Scientific paper

High-resolution VLA radio mapping at 1.46, 4.84, and 15.0 GHz is presented together with NIR J,H,K,L, and M mapping and photometry of a broad range of type I postmain-sequence nebulae. Many of these sources have extremely compact infrared and radio cores ranging from 0.1 to 0.01 pc in size; in some cases they contain up to 96 percent of the total radio flux. A detailed investigation of the IRAS photometry for type I nebulae was undertaken; a typical interior grain temperature is estimated to be 200 K while outer shell temperatures are estimated to be less than 50 K.

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