GROUPINGS OF POPULATION I OBJECTS IN THE GALAXY

Автор(и)

  • L. N. Berdnikov Sternberg Astronomical Institute 13 Universitetskij prosp., Moscow 119992, Russia, Russian Federation
  • Yu. N. Efremov Sternberg Astronomical Institute 13 Universitetskij prosp., Moscow 119992, Russia, Russian Federation
  • E. V. Glushkova Sternberg Astronomical Institute 13 Universitetskij prosp., Moscow 119992, Russia, Russian Federation
  • D. G. Turner Deparatament of Astronomy and Physics, Saint Mary's University Halifax, Nova Scotia B3H 3C3, Canada, Canada

DOI:

https://doi.org/10.18524/1810-4215.2005.18.98240

Ключові слова:

Stars, Cepheids, open clusters, OB-associations, stars, complexes.

Анотація

The distribution of Cepheids in the Galaxy is studied using a new catalogue of Cepheid distances in conjunction with the method of hierarchical clustering. The resulting delineation of Cepheid complexes is compared with those for other Population I objects: open clusters and OB-associations. Parameters derived for complexes of Cepheids are very similar to those for open clusters and OB-associations: the typical dimension of first level groups is ∼0.2 kpc, while the size of complexes is ∼0.9 kpc. Mostly the complexes of different objects are spatially coincident, but not always.

Посилання

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Опубліковано

2017-04-10

Номер

Том 18 (2005)

Розділ

Статті

Ліцензія

Авторське право (c) 2017 Odessa Astronomical Publications

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Відповідно Закону України про авторське право і суміжні права N 3792-XII від 23 грудня 1993 року