The symbiotic star near the globular cluster NGC 6401

Details The symbiotic star near the globular cluster NGC 6401 The symbiotic star near the globular cluster NGC 6401

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980rmxaa...5...51t&link_type=abstract

Revista Mexicana de Astronomia y Astrofisica, vol. 5, Apr. 1980, p. 51-58.

Astronomy and Astrophysics

Astronomy

1

Globular Clusters, Star Distribution, Stellar Spectra, Binary Stars, Emission Spectra, Planetary Nebulae

Scientific paper

Spectrophotometric observations of the emission line object near the globular cluster NGC 6401 discovered by Peterson (1977), Pt-1, are presented. It is found that Pt-1 is a symbiotic star and not a planetary nebula; its spectra show TiO bands in absorption and very strong H and He lines in emission, and there are no forbidden lines present. The observed He lines are about one order of magnitude stronger than predicted; it is suggested that this is partly due to collisional redistribution of the angular momentum for levels with n greater than 2.

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