Studies of small galactic nebulae

Details Studies of small galactic nebulae Studies of small galactic nebulae

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90...59t&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 90, Jan. 1985, p. 59-64. Research supported by the National Astronomy and Ionosphere

Astronomy and Astrophysics

Astronomy

16

Milky Way Galaxy, Molecular Clouds, Nebulae, Radio Sources (Astronomy), Astronomical Maps, H Ii Regions, Planetary Nebulae, Radiant Flux Density, Stellar Evolution

Scientific paper

High-resolution VLA radio observations are reported for several small H II regions, including the cluster emission nebulae S258, S255, S257, and S256. The region between S255 and S257 at λ2 cm reveals significant fine structure close to OH, H2O, and infrared emitting sources. Observations of the cometary nebula PP59(S269) also reveal similar characteristics. These regions are considered to be active star-forming clouds. The cometary nebula PP40 was also observed and it is suggested that it might be a planetary nebula.

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