Interpretation of optical and IR light curves for transitional disk candidates in NGC 2264 using the extincted stellar radiation and the emission of optically thin dust inside the hole

Abstract

In the stellar forming region NGC 2264 there are objects catalogued as hosting a transitional disk according to spectrum modeling. Four members of this set have optical and infrared light curves coming from the CoRoT and Spitzer telescopes. In this work, we try to simultaneously explain the light curves using the extinction of the stellar radiation and the emission of the dust inside the hole of a transitional disk. For the object Mon-296, we were successful. However, for Mon-314, and Mon-433 our evidence suggests that they host a pre-transitional disk. For Mon-1308 a new spectrum fitting using the 3D radiative transfer code Hyperion allows us to conclude that this object hosts a full disk instead of a transitional disk. This is in accord to previous work on Mon-1308 and with the fact that we cannot find a fit for the light curves using only the contribution of the dust inside the hole of a transitional disk.

arXiv comment18 pages, 3 figures

References in corpus (22)

• The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
• Measuring the rotation period distribution of field M-dwarfs with Kepler
• 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
• Discovery of Small-Scale Spiral Structures in the Disk of SAO 206462 (HD 135344B): Implications for the Physical State of the Disk from Spiral Density Wave Theory
• On the Diversity of the Taurus Transitional Disks: UX Tau A & Lk Ca 15
• Star and protoplanetary disk properties in Orion's suburbs
• Evidence for a correlation between mass accretion rates onto young stars and the mass of their protoplanetary disks
• A Spitzer IRS Study of Infrared Variability in Transitional and Pre-Transitional Disks around T Tauri Stars
• A Spitzer Census of Transitional Protoplanetary Disks with AU-Scale Inner Holes
• On the gas content of transitional disks: a VLT/X-Shooter study of accretion and winds
• The Nature of Transition Circumstellar Disks I. The Ophiuchus Molecular Cloud
• Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry
• A Spitzer c2d Legacy Survey to Identify and Characterize Disks with Inner Dust Holes
• CSI 2264: Characterizing Accretion-Burst Dominated Light Curves for Young Stars in NGC 2264
• New insights into the nature of transition disks from a complete disk survey of the Lupus star forming region
• A Spitzer View of the Young Open Cluster NGC 2264
• Warps, bending and density waves excited by rotating magnetized stars: results of global 3D MHD simulations
• Demographics of Transition Discs in Ophiuchus and Taurus
• Dippers and Dusty Disks Edges: A Unified Model
• Infrared Variability of Evolved Protoplanetary Disks: Evidence for Scale Height Variations in the Inner Disk
• Rossby Wave Instability in Astrophysical Discs
• Using FUV to IR Variability to Probe the Star-Disk Connection in the Transitional Disk of GM Aur