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27 April 2024

» arxiv » 1607.6322

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Long-Term Photometry of IC 348 with the YETI Network
D. J. Fritzewski ; M. Kitze ; M. Mugrauer ; R. Neuhäuser ; C. Adam ; C. Briceño ; S. Buder ; T. Butterley ; W.-P. Chen ; B. Dinçel ; V. S. Dhillon ; R. Errmann ; Z. Garai ; H. F. W. Gilbert ; C. Ginski ; J. Greif ; L. K. Hardy ; J. Hernández ; P. C. Huang ; A. Kellerer ; E. Kundra ; S. P. Littlefair ; M. Mallonn ; C. Marka ; A. Pannicke ; T. Pribulla ; St. Raetz ; J. G. Schmidt ; T. O. B. Schmidt ; M. Seeliger ; R. W. Wilson ; V. Wolf ;
Date:	21 Jul 2016
Abstract:	We present long-term photometric observations of the young open cluster IC 348 with a baseline time-scale of 2.4 yr. Our study was conducted with several telescopes from the Young Exoplanet Transit Initiative (YETI) network in the Bessel $R$ band to find periodic variability of young stars. We identified 87 stars in IC 348 to be periodically variable; 33 of them were unreported before. Additionally, we detected 61 periodic non-members of which 41 are new discoveries. Our wide field of view was the key to those numerous newly found variable stars. The distribution of rotation periods in IC 348 has always been of special interest. We investigate it further with our newly detected periods but we cannot find a statistically significant bimodality. We also report the detection of a close eclipsing binary in IC 348 composed of a low-mass stellar component ($M gtrsim 0.09,mathrm{M}_{odot}$) and a K0 pre-main sequence star ($M approx 2.7,mathrm{M}_{odot}$). Furthermore, we discovered three detached binaries among the background stars in our field of view and confirmed the period of a fourth one.
Source:	arXiv, 1607.6322
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