The young and active H II region S 152 and sequential formation of small nebulae in interstellar clouds

Details The young and active H II region S 152 and sequential formation of small nebulae in interstellar clouds The young and active H II region S 152 and sequential formation of small nebulae in interstellar clouds

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...234..443p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 234, no. 1-2, Aug. 1990, p. 443-446.

Astronomy and Astrophysics

Astrophysics

6

H Alpha Line, H Ii Regions, Interstellar Gas, Molecular Clouds, Nebulae, Fabry-Perot Interferometers, Radial Velocity, H Ii Regions: Velocity Fields, Complexes, Sequential Formation

Scientific paper

Attention is directed towards the H II region "complex" S 152 and S 153. Our new velocity data together with OH and H2O sources recently identified in S 152 confirm the younger age of S 152 compared to S 153 as suggested earlier (Pişmiş and Hasse, 1980). Sequential formation of H II regions out of the same interstellar cloud is thus manifest. This complex is one of the three studied by us showing the phenomenon of non-coeval formation of entities in the same complex.

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