# Modeling of CoRoT and Spitzer lightcurves in NGC 2264 caused by an optically thick warp

## TL;DR

This study models simultaneous optical and infrared lightcurves of four young stellar objects in NGC 2264, explaining their variability through a single mechanism involving an optically thick warp and asymmetric disk structure.

## Contribution

It introduces a unified model that explains both optical and infrared lightcurves with a single physical mechanism involving a warped disk and stellar occultation.

## Key findings

- Lightcurves are explained by emission from a warped disk and stellar occultation.
- Differences in flux are due to disk flux variations and azimuthal asymmetries.
- Hydrodynamical interactions influence the disk structure and variability.

## Abstract

Aims: We present an analysis of simultaneously observed CoRoT and Spitzer lightcurves for $4$ 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.