Subject: hot emission-line (OBAe) stars - LINDAT/CLARIAH-CZ Catalog Search Results

Start Over Subject hot emission-line (OBAe) stars

Creator:: Harmanec, Petr
Format:: bez média and svazek
Type:: model:article and TEXT
Subject:: hot emission-line (OBAe) stars, binaries, and spectral and light changes
Language:: Czech
Description:: A brief review of current problems in the research of hot emission-line stars is presented. Special attention is paid to problems of reliable determination of basic physical properties of underlying stars and to possible role of duplicity in the whole phenomenon. A preliminary catalogue of OBA emission-line stars in binaries is also included.
Rights:: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

Creator:: Walker, Gordon A. H.
Format:: bez média and svazek
Type:: model:article and TEXT
Subject:: hot emission-line (OBAe) stars, interstellar lines, and spectral changes
Language:: Czech
Description:: The broadening of the photospheric lines in ζ Ophiuchu by very rapid rotation allows not ony mapping of its surface velocities and temperature distribution, but makes the star an excellent probe for a profusion of sharp interstellar lines. Being bright, it is a good object for smaller telescopes. Apart from discovering nonradial oscillations in its atmosphere over twenty years ago and a significant temperature differential between pole and equator (the von Zeipel effect), I have recently assisted in the discovery of some 30 lines of interstellar C3 near 405 nm - the first carbon chain to have been found in a diffuse interstellar cloud and at a much higher concentration than expected.
Rights:: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

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