The true rotational period of the Ap star HD 193722 = V 1584 Cyg | Zendy

Hildebrandt G. | Zendy; Scholz G. | Zendy; Lehmann H. | Zendy; Panov K. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

The true rotational period of the Ap star HD 193722 = V 1584 Cyg

Author(s) -

Hildebrandt G.,

Scholz G.,

Lehmann H.,

Panov K.

Publication year - 1995

Publication title -

astronomische nachrichten

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 63

eISSN - 1521-3994

pISSN - 0004-6337

DOI - 10.1002/asna.2103160104

Subject(s) - physics , astrophysics , star (game theory) , diagram , astronomy , rotation period , o type main sequence star , equivalent width , emission spectrum , stars , spectral line , k type main sequence star , t tauri star , mathematics , statistics

Photometric observations of the Ap star HD 193722 give unambiguous proofs for a rotational period of P =8.5297 days in contradiction to the earlier found value of P =1.13316 days. Spectroscopic measurements yield a line width equivalent to the value v sin i =44.5 km/s. Both findings show convincingly that HD 193722 is an evolved Ap star with a position in the giant region of the HR diagram. This place falls into a domain occupied by the hypothetic Maia sequence.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research