J/MNRAS/462/2396 Time-series photometry of IC 348 (Fritzewski+, 2016)
Long-Term Photometry of IC 348 with the YETI Network.
Fritzewski D.J., Kitze M., Mugrauer M., Neuhauser R., Adam C.,
Briceno C., Buder S., Butterley T., Chen W.-P., Dincel B.,
Dhillon V.S., Errmann R., Garai Z., Gilbert H.F.W., Ginski C.,
Greif J., Hardy L.K., Hernandez J., Huang P.C., Kellerer A.,
Kundra E., Littlefair S.P., Mallonn M., Marka C., Pannicke A.,
Pribulla T., Raetz St., Schmidt J.G., Schmidt T.O.B.,
Seeliger M., Wilson R.W., Wolf V.
<Mon. Not. R. Astron. Soc. 462, 2396 (2016)>
=2016MNRAS.462.2396F 2016MNRAS.462.2396F (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Stars, variable ;
Photometry, CCD
Keywords: stars: variables: general - stars: variables: T Tauri -
starspots - binaries: eclipsing - techniques: photometric -
open clusters and associations: individual: IC 348
Abstract:
We present long-term photometric observations of the young open
cluster IC 348 with a baseline time-scale of 2.4yr. Our study was
conducted with several telescopes from the Young Exoplanet Transit
Initiative (YETI) network in the Bessell 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≳0.09M☉) and a K0 pre-main sequence star (M∼2.7M☉).
Furthermore, we discovered three detached binaries among the
background stars in our field of view and confirmed the period of a
fourth one.
Description:
Our Bessell R band photometric study of IC 348 used data from eight
observatories. The observations were conducted between 2012 August 22
and 2015 January 18 in 125 nights. All telescopes had observed
slightly different fields, while all stars were included in the field
observed from the University Observatory Jena with the Schmidt
telescope (centred at RA=3:45:20, DEC=+32:04:50). This telescope has a
2048x2048 CCD and a FoV of 52.8'x58.2'. In this work we present
rotation periods for members and non-members alike.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 96 148 Periodic variables in IC 348
--------------------------------------------------------------------------------
See also:
J/A+A/324/549 : Deep UVBRI photometry in IC 348 (Trullols+ 1997)
J/ApJ/497/736 : The young cluster IC 348 (Herbig, 1998)
J/ApJ/593/1093 : IC 348 membership (Luhman+, 2003)
J/AJ/127/1602 : Cousins RI photometry in IC 348 (Cohen+, 2004)
J/MNRAS/358/341 : Ic photometry of IC 348 (Littlefair+, 2005)
J/ApJ/649/862 : IR phot. of IC 348 pre-main-sequence stars (Cieza+, 2006)
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- Seq Sequential number
6- 12 F7.4 deg RAdeg Right ascension (J2000)
14- 20 F7.4 deg DEdeg Declination (J2000)
22- 47 A26 --- Name 2MASS or designation from Preibisch et al.
(2003A&A...409..147P 2003A&A...409..147P)
49- 51 I3 --- CB ? Cieza & Baliber (2006ApJ...649..862C 2006ApJ...649..862C)
number, (Cl* IC 348 CB NNN in Simbad)
53- 57 I5 --- LRL ? Luhman et al. (2003ApJ...593.1093L 2003ApJ...593.1093L)
number,(Cl* IC 348 LRL NNN in Simbad)
Cat. J/ApJ/593/1093
58 A1 --- m_LRL [AB] Multiplicity index on LRL
59- 67 F9.5 d P Period of photometric variability
69- 75 F7.5 d e_P Error of Period
77- 81 F5.2 d PCB ? Period given by Cieza & Baliber
(2006ApJ...649..862C 2006ApJ...649..862C)
83- 87 F5.3 mag Ampl Amplitude of lightcurve in Rmag
89- 92 F4.1 mag Rmag ? Bessell R magnitude
94- 96 F3.1 mag V-R ? Bessell V-R colour index
--------------------------------------------------------------------------------
Acknowledgements:
Dario Fritzewski, dfritzewski(at)aip.de
(End) Dario Fritzewski [AIP, Germany], Patricia Vannier [CDS] 23-Aug-2016