prikaz prve stranice dokumenta Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2
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Scientific paper - Original scientific paper
Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2
Astronomy and Astrophysics, 564 (2014); 42. https://doi.org/10.1051/0004-6361/201423521
Paunzen, E.; Netopil, M.; Maitzen, H.M.; Pavlovski, Krešimir; Schnell, A; Zejda, M.

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Paunzen, E., Netopil, M., Maitzen, H., Pavlovski, K., Schnell, A. & Zejda, M. (2014). Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2. Astronomy and Astrophysics, 564.. doi: 10.1051/0004-6361/201423521

Paunzen, E., et al. "Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2." Astronomy and Astrophysics, vol. 564, 2014. https://doi.org/10.1051/0004-6361/201423521

Paunzen, E., M. Netopil, H.M. Maitzen, Krešimir Pavlovski, A Schnell and M. Zejda. "Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2." Astronomy and Astrophysics 564 (2014). https://doi.org/10.1051/0004-6361/201423521

Paunzen, E., et al. (2014) 'Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2', Astronomy and Astrophysics, 564. doi: 10.1051/0004-6361/201423521

Paunzen E, Netopil M, Maitzen H, Pavlovski K, Schnell A, Zejda M. Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2. Astronomy and Astrophysics [Internet]. 2014 [cited 2025 March 27];564. doi: 10.1051/0004-6361/201423521

E. Paunzen, M. Netopil, H. Maitzen, K. Pavlovski, A. Schnell and M. Zejda, "Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2", Astronomy and Astrophysics, vol. 564, 2014. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:293791. [Accessed: 27 March 2025]

Metadata
Title (english)Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2
AuthorE. Paunzen
AuthorM. Netopil
AuthorH.M. Maitzen
AuthorKrešimir Pavlovski
AuthorA Schnell
AuthorM. Zejda
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
The chemically peculiar (CP) stars of the upper main sequence are mainly characterized by strong overabundances of heavy elements. Two subgroups (CP2 and CP4) have strong local magnetic fields which make them interesting targets for astrophysical studies. This star group, in general, is often used for the analysis of stellar formation and evolution in the context of diffusion as well as meridional circulation. In continuation of a long term study of CP stars (initiated in the 1980s), we present... More new results based on photoelectric measurements for ten open clusters that are, with one exception, younger than 235 Myr. Observations in star clusters are favourable because they represent samples of stars of constant age and homogeneous chemical composition. The very efficient tool of Δa photometry was applied. It samples the flux depression at 5200 Å typically for CP stars. In addition, it is able to trace emission line Be/Ae and lambda Bootis stars. Virtually all CP2 and CP4 stars can be detected via this tool, and it has been successfully applied even in the Large Magellanic Cloud. For all targets in the cluster areas, we performed a kinematic membership analysis. We obtained new photoelectric Δa photometry of 304 stars from which 207 objects have a membership probability higher than 50%. Our search for chemically peculiar objects results in fifteen detections. The stars have masses between 1.7 Msun and 7.7 Msun and are between the zero- and terminal-age-main-sequence. We discuss the published spectral classifications in the light of our delta-a photometry and identify several misclassified CP stars. We are also able to establish and support the nature of known bona fide CP candidates. It is vital to use kinematic data for the membership determination and also to compare published spectral types with other data, such as Δa photometry. There are no doubts about the accuracy of photoelectric measurements, especially for stars brighter than 10th magnitude. The new and confirmed CP stars are interesting targets for spectroscopic follow-up observations to put constraints on the formation and evolution of CP stars. Less
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleAstronomy and Astrophysics
Numberingvol. 564, 42
p-ISSN0004-6361
DOIhttps://doi.org/10.1051/0004-6361/201423521
URN:NBNurn:nbn:hr:217:293791
Publication2014
ProjectNumber: 119-0000000-3135
Title (croatian): Struktura i evolucija zvijezda
Leader: Krešimir Pavlovski
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttps://www.aanda.org/articles/aa/abs/2014/04/aa23521-14/aa23521-14.html
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© ESO 2014. Received 28 January 2014. Accepted 20 February 2014.
Created on2019-11-29 14:45:37
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