Simultaneous spectroscopic (UV MG II and AL II lines) and photometric variations of zeta 1 SCO (HD 152236)

Details Simultaneous spectroscopic (UV MG II and AL II lines) and photometric variations of zeta 1 SCO (HD 152236) Simultaneous spectroscopic (UV MG II and AL II lines) and photometric variations of zeta 1 SCO (HD 152236)

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980esasp.157...43h&link_type=abstract

The second European International Ultraviolet Explorer (IUE) Conference, held 26-28 March 1980 in Tübingen, West Germany. Edited

Astronomy and Astrophysics

Astronomy

1

Astronomical Photometry, Iue, Supergiant Stars, Ultraviolet Astronomy, Variable Stars, Aluminum, Magnesium, Scorpius Constellation, Stellar Envelopes, Stellar Mass Ejection

Scientific paper

Repeated IUE observations of zeta 1 Sco show variations in the line profiles of the two Mg II doublets at about 2800 A and of the Al II lambda 1670 line. A series of puffs in the expanding envelope was identified, implying a non-stationary mass loss process. A phase of particularly discontinuous loss of matter has been correlated with a sharp decrease of the V magnitude.

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