FR Cnc revisited: photometry, polarimetry and spectroscopy<sup>★</sup>
作者: A. GolovinM. C. Gálvez‐OrtizM. Hernán‐ObispoM. AndreevJ. R. BarnesD. MontesE. PavlenkoJ. C. PandeyR. Martínez‐ArnáizB. J. MedhiP. S. PariharA. HendenA. SergeevS. V. ZaitsevN. Karpov
作者单位: 1Main Astronomical Observatory of National Academy of Sciences of Ukraine, Zabolotnogo str., 27, Kiev 03680, Ukraine
2 Centro de Astrobiología (CSIC‐INTA), Ctra de Ajalvir, km 4, E‐28850 Torrejón de Ardoz, Madrid, Spain
3 Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, Hertfordshire AL10 9AB
4 Astrophysics Department, Physic Faculty, Universidad Complutense de Madrid, E‐28040 Madrid, Spain
5 Terskol Branch of the Astronomy Institute of RAS, Kabardino‐Balkaria Republic, 361605 Terskol, Russia
6 International Center for Astronomical, Medical and Ecological Research of National Academy of Sciences of Ukraine (ICAMER of NASU), Zabolotnogo str., 27, Kiev 03680, Ukraine
7 Crimean Astrophysical Observatory (CrAO), Nauchny, 98409 Crimea, Ukraine
8 Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263129, India
9 Indian Institute of Astrophysics, Block II, Koramangala, Bangalore 560 034, India
10 AAVSO, Clinton B. Ford Astronomical Data
刊名: Monthly Notices of the Royal Astronomical Society, 2012, Vol.421 (1), pp.132-148
来源数据库: Wiley Journal
DOI: 10.1111/j.1365-2966.2011.20262.x
关键词: stars: activitystars: flarestars: individual: FR Cncstars: rotation
原始语种摘要: ABSTRACT(#br)This paper is part of a multiwavelength study aimed at using complementary photometric, polarimetric and spectroscopic data to achieve an understanding of the activity process in late‐type stars. Here, we present the study of FR Cnc, a young, active and spotted star.(#br)We performed analysis of All Sky Automated Survey 3 (ASAS‐3) data for the years 2002–08 and amended the value of the rotational period to be 0.826518 d. The amplitude of photometric variations decreased abruptly in the year 2005, while the mean brightness remained the same, which was interpreted as a quick redistribution of spots. BVR C and I C broad‐band photometric calibration was performed for 166 stars in FR Cnc vicinity.(#br)The photometry at Terskol Observatory shows two...
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