Details

Autor(en) / Beteiligte

• EGGEN, O. J

Titel

The IC 2391 supercluster

Ist Teil von

• The Astronomical journal, 1991-12, Vol.102 (6), p.2028-2040

Ort / Verlag

Chicago, IL: University of Chicago Press

Erscheinungsjahr

1991

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Sixty-three field stars and the sparse cluster IC 2391 have been identified as members of the IC 2391 supercluster. The members have at least 95 percent of their space motion, directed toward (A,D) = (5.82h, - 12.44d). Like members of the very similar Pleiades supercluster, the IC 2391 supercluster contains objects of two ages: t = 8 x 19 exp 7 and 2.5 x 10 exp 8 yr. A prototype very active chromosphere star and the enigmatic giant variable TZ For are supercluster members together with two A-type stars suspected of possessing particulate disks. An especially interesting member is the system of Xi Cep (HR 8417) in which the two brightest components are greatly undermassive. (Author)