Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.147....1g&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 147, no. 1, Aug. 1988, p. 1-67.
Astronomy and Astrophysics
Astronomy
3
Astronomical Catalogs, Imaging Techniques, Star Clusters, Ultraviolet Astronomy, Balloon-Borne Instruments, Interstellar Extinction, Star Distribution, Stellar Color, Stratosphere
Scientific paper
The stellar field centred close to the h and χ Per double cluster is one of the 123 fields recorded in the galactic plane at 2000 Å by the balloon-borne stratospheric gondola of the SCAP-2000 programme. The analysis of the frame allows to determine an ultraviolet colour index U1 - V for more than 600 stars. Among these are stars belonging to the h and χ Per and Tr 2 clusters and to the PER OB1 association. The prevailing extinction law is found to produce greater extinction at 1965 Å than predicted by the mean extinction law. Moreover, the clouds responsible for the extinction are situated in the local arm and distributed in two layers with a very transparent interval.
Cramer Noel
Golay Marcel
Huguenin Daniel
Rabattu X.
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