A new method for classifying flares of UV Ceti type stars: Differences between slow and fast flares
Küçük Resim Yok
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, a new method is presented to classify flares derived from the photoelectric photometry of UV Ceti type stars. This method is based on statistical analyses using an independent samples t-test. The data used in analyses were obtained from four flare stars observed between 2004 and 2007. The total number of flares obtained in the observations of AD Leo, EV Lac, EQ Peg, and V1054 Oph is 321 in the standard Johnson U band. As a result flares can be separated into two types, slow and fast, depending on the ratio of flare decay time to flare rise time. The ratio is below 3.5 for all slow flares, while it is above 3.5 for all fast flares. Also, according to the independent samples t-test, there is a difference of about 157 s between equivalent durations of slow and fast flares. In addition, there are significant differences between amplitudes and rise times of slow and fast flares. © 2010. The American Astronomical Society. All rights reserved.
Açıklama
Anahtar Kelimeler
Methods: Data analysis, Methods: Statistical, Stars: Flare, Stars: Individual (AD Leo EV Lac EQ Peg V1054 Oph)
Kaynak
Astronomical Journal
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
140
Sayı
2
