Modeling of CoRoT and Spitzer lightcurves in NGC 2264 caused by an optically thick warp
arXiv:1906.10110 · doi:10.1051/0004-6361/201833979
Abstract
Aims: We present an analysis of simultaneously observed CoRoT and Spitzer lightcurves for systems in the stellar forming region NGC 2264: Mon-660, Mon-811, Mon-1140 and Mon-1308. These objects share in common a high resemblance between the optical and infrared lightcurves, such that the mechanism responsible to produce them is the same. The aim of this paper is to explain both lightcurves simultaneously with only one mechanism. Methods: We have modeled the infrared emission as coming from a warp composed of an optically thick wall and an optically thick asymmetric disk beyond this location. We have modeled the optical emission mainly by partial stellar occultation by the warp. Results: The magnitude amplitude of the CoRoT and Spitzer observations for all the objects can be described with the emission coming from the system components. The difference between them is the value of the disk flux compared with the wall flux and the azimuthal variations of the former. This result points out the importance of the hydrodynamical interaction between the stellar magnetic field and the disk. Conclusions: CoRoT and Spitzer lightcurves for the stellar systems Mon-660, Mon-811, Mon-1140 and Mon-1308 can be simultaneously explained using the emission coming from an asymmetric disk and emission with stellar occultation by an optically thick wall.
17 pages, 10 figures
References in corpus (8)
- Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry
- CSI 2264: Probing the inner disks of AA Tau-like systems in NGC 2264
- Chasing Shadows: Rotation of the Azimuthal Asymmetry in the TW Hya Disk
- CSI 2264: Characterizing Young Stars in NGC 2264 with Short-Duration, Periodic Flux Dips in their Light Curves
- Warps, bending and density waves excited by rotating magnetized stars: results of global 3D MHD simulations
- Strong Near-Infrared Emission Interior to the Dust-Sublimation Radius of Young Stellar Objects MWC275 and AB Aur
- A Model for (Quasi-)Periodic Multi-wavelength Photometric Variability in Young Stellar Objects
- Dynamical star-disk interaction in the young stellar system V354 Mon