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Pregled bibliografske jedinice broj: 709765

Časopis

Autori: Poljančić Beljan, Ivana; Jurdana-Šepić, Rajka; Semkov, E. H.; Ibryamov S, Peneva, S.P; Tsvetkov, M.K.
Naslov: Long-term photometric observations of pre-main sequence objects in the field of North America/Pelican Nebula
( Long-term photometric observations of pre-main sequence objects in the field of North America/Pelican Nebula )
Izvornik: Astronomy and astrophysics (1432-0746) 568 (2014); A49-1-A49-30
Vrsta rada: članak
Ključne riječi: stars: pre-main sequence – stars: variables: general
( stars: pre-main sequence – stars: variables: general )
Sažetak:
To broaden the search and study stars in the early evolutionary phase, we investigated a sample of 17 pre-main sequence objects previously detected as either Hα emission-line pre-main sequence stars or T Tauri variables located in the field of the North America/Pelican Nebula complex. Johnson-Cousins B, V, Rc, Ic magnitudes and mean color indices for the program stars are determined from more than 12 400 measurements from archive photographic plates and from CCD data collected at 7 observatories covering the period of almost 60 years from 1954 up to 2013. We complemented previously rare insights on the photometry of the program stars and presented their photometric history, which for almost all program stars is the first long term photometric monitoring on a timescale of 6 decades. Eight program stars are found to be classical T Tauri stars of variability type II, while 6 program stars are weak-line T Tauri stars of variability type I. For the first time, periodicity is found for three stars: V1716 Cyg indicates a 4.15 day period, V2051 Cyg indicates a 384 day period, and V521 Cyg a period of 503 days.
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Fizika
URL Internet adrese: http://www.aanda.org/articles/aa/abs/2014/08/aa22965-13/aa22965-13.html
http://dx.doi.org/10.1051/0004-6361/201322965
Broj citata:
Altmetric:
DOI: 10.1051/0004-6361/201322965
URL cjelovitog teksta:
Google Scholar: Long-term photometric observations of pre-main sequence objects in the field of North America/Pelican Nebula
Upisao u CROSBI: Rajka Jurdana-Šepić (Rajka.Jurdana@phy.uniri.hr), 12. Kol. 2014. u 09:49 sati



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