CSI 2264: Simultaneous optical and infrared light curves of young disk-bearing stars in NGC 2264 with CoRoT and Spitzer-- evidence for multiple origins of variability

@article{Cody2014CSI2S,
  title={CSI 2264: Simultaneous optical and infrared light curves of young disk-bearing stars in NGC 2264 with CoRoT and Spitzer-- evidence for multiple origins of variability},
  author={Ann Marie Cody and John R. Stauffer and Annie Baglin and Giuseppina Micela and Luisa M. Rebull and Ettore Flaccomio and Mar'ia Morales-Calder'on and Suzanne Aigrain and J{\'e}r{\^o}me Bouvier and L. A. Hillenbrand and Robert A. Gutermuth and Inseok Song and Neal J. Turner and S. H. P. Alencar and Konstanze Zwintz and Peter P. Plavchan and John M. Carpenter and Krzysztof Findeisen and Sean Carey and Susan Terebey and Lee Hartmann and Nuria Calvet and Paula S Teixeira and Frederick John Vrba and Scott J. Wolk and Kevin R. Covey and Katja Poppenhaeger and Hans Moritz Gunther and Jan Forbrich and Barbara Anne Whitney and L. Affer and William Herbst and Joseph L. Hora and David Barrado and Jon A. Holtzman and Franck Marchis and Kenneth Wood and Marcelo Medeiros Guimar{\~a}es and Jorge Lillo Box and Edward Gillen and Amy McQuillan and Catherine C. Espaillat and Lori E. Allen and Paola d’Alessio and Fabio Favata},
  journal={The Astronomical Journal},
  year={2014},
  volume={147},
  pages={82}
}
We present the Coordinated Synoptic Investigation of NGC 2264, a continuous 30 day multi-wavelength photometric monitoring campaign on more than 1000 young cluster members using 16 telescopes. The unprecedented combination of multi-wavelength, high-precision, high-cadence, and long-duration data opens a new window into the time domain behavior of young stellar objects. Here we provide an overview of the observations, focusing on results from Spitzer and CoRoT. The highlight of this work is… 
CSI 2264: Simultaneous optical and X-ray variability in pre-main sequence stars - I. Time resolved X-ray spectral analysis during optical dips and accretion bursts in stars with disks
Context. Pre-main sequence stars are variable sources. The main mechanisms responsible for their variability are variable extinction, unsteady accretion, and rotational modulation of both hot and
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We provide CoRoT and Spitzer light curves, as well as broad-band multi-wavelength photometry and high resolution, multi- and single-epoch spectroscopy for 17 classical T Tauris in NGC 2264 whose
CSI 2264: CHARACTERIZING YOUNG STARS IN NGC 2264 WITH SHORT-DURATION PERIODIC FLUX DIPS IN THEIR LIGHT CURVES*
We identify nine young stellar objects (YSOs) in the NGC 2264 star-forming region with optical CoRoT light curves exhibiting short-duration, shallow periodic flux dips. All of these stars have
Connecting X-Ray and Infrared Variability among Young Stellar Objects: Ruling out Potential Sources of Disk Fluctuations
Variability in the infrared emission from disks around pre-main sequence stars over the course of days to weeks appears to be common, but the physical cause of the changes in disk structure are not
UV variability and accretion dynamics in the young open cluster NGC 2264
Context. Photometric variability is a distinctive feature of young stellar objects; exploring variability signatures at different wavelengths provides insight into the physical processes at work in
YOUNG STELLAR OBJECT VARIABILITY (YSOVAR): LONG TIMESCALE VARIATIONS IN THE MID-INFRARED
The YSOVAR (Young Stellar Object VARiability) Spitzer Space Telescope observing program obtained the first extensive mid-infrared (3.6 and 4.5 μm) time series photometry of the Orion Nebula Cluster
CSI 2264: Simultaneous optical and X-ray variability in the pre-main sequence stars of NGC 2264
Context. Pre-main sequence stars are variable sources. In diskless stars this variability is mainly due to the rotational modulation of dark photospheric spots and active regions, as in main sequence
Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry
Context. The accretion process has a central role in the formation of stars and planets. Aims. We aim at characterizing the accretion properties of several hundred members of the star-forming
A survey for variable young stars with small telescopes: II – mapping a protoplanetary disc with stable structures at 0.15 au
The HOYS citizen science project conducts long term, multifilter, high cadence monitoring of large YSO samples with a wide variety of professional and amateur telescopes. We present the analysis of
A comprehensive study of young B stars in NGC 2264 . I. Space photometry and asteroseismology
Context. Space photometric time series of the most massive members of the young open cluster NGC 2264 allow us to study their different sources of variability down to the millimagnitude level and
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CSI 2264: CHARACTERIZING ACCRETION-BURST DOMINATED LIGHT CURVES FOR YOUNG STARS IN NGC 2264*
Based on more than four weeks of continuous high cadence photometric monitoring of several hundred members of the young cluster NGC 2264 with two space telescopes, NASA’s Spitzer and the CNES CoRoT
Precision Photometric Monitoring of Very Low Mass σ Orionis Cluster Members: Variability and Rotation at a Few Myr
We present high-precision photometry on 107 variable low-mass stars and brown dwarfs in the ~3 Myr σ Orionis open cluster. We have carried out I-band photometric monitoring within two fields,
DISK-RELATED BURSTS AND FADES IN YOUNG STARS
We present first results from a new, multiyear, time domain survey of young stars in the North America Nebula complex using the Palomar Transient Factory. Our survey is providing an unprecedented
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Recent studies have identified several young stellar objects (YSOs) which exhibit significant mid-infrared (mid-IR) variability. A wide range of physical mechanisms may be responsible for these
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We present the results of a multi-wavelength multi-epoch survey of five evolved protoplanetary disks in the IC 348 cluster that show significant infrared variability. Using 3-8 {mu}m and 24 {mu}m
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Rotation is one of the key stellar parameters which undergo substantial evolution during the stellar lifetime, in particular during the early stages. Stellar rotational periods can be determined on
On the simultaneous optical and near-infrared variability of pre-main sequence stars
For a complete understanding of the physical processes causing the photometric variability of pre-main sequence systems, simultaneous optical and near-IR observations are required to disentangle the
YSOVAR: THE FIRST SENSITIVE, WIDE-AREA, MID-INFRARED PHOTOMETRIC MONITORING OF THE ORION NEBULA CLUSTER
We present initial results from time-series imaging at infrared wavelengths of 0.9 deg^2 in the Orion Nebula Cluster (ONC). During Fall 2009 we obtained 81 epochs of Spitzer 3.6 and 4.5 μm data over
REM near-IR and optical photometric monitoring of pre-main sequence stars in Orion. Rotation periods
Aims. We aim at determining the rotational periods and the starspot properties in very young low-mass stars belonging to the Ori OB1c star forming region, contributing to the study of the angular
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