Consistent dust and gas models for protoplanetary disks

Abstract

Context. Consistent modeling of protoplanetary disks requires the simultaneous solution of both continuum and line radiative transfer, heating and cooling balance between dust and gas and, of course, chemistry. Such models depend on panchromatic observations that can provide a complete description of the physical and chemical properties and energy balance of protoplanetary systems. Along these lines, we present a homogeneous, panchromatic collection of data on a sample of 85 T Tauri and Herbig Ae objects for which data cover a range from X-rays to centimeter wavelengths. Datasets consist of photometric measurements, spectra, along with results from the data analysis such as line fluxes from atomic and molecular transitions. Additional properties resulting from modeling of the sources such as disk mass and shape parameters, dust size, and polycyclic aromatic hydrocarbon (PAH) properties are also provided for completeness. Aim. The purpose of this data collection is to provide a solid base that can enable consistent modeling of the properties of protoplanetary disks. To this end, we performed an unbiased collection of publicly available data that were combined to homogeneous datasets adopting consistent criteria. Targets were selected based on both their properties and the availability of data. Methods. Data from more than 50 different telescopes and facilities were retrieved and combined in homogeneous datasets directly from public data archives or after being extracted from more than 100 published articles. X-ray data for a subset of 56 sources represent an exception as they were reduced from scratch and are presented here for the first time. Results. Compiled datasets, along with a subset of continuum and emission-line models are stored in a dedicated database and distributed through a publicly accessible online system. All datasets contain metadata descriptors that allow us to track them back to their original resources. The graphical user interface of the online system allows the user to visually inspect individual objects but also compare between datasets and models. It also offers to the user the possibility to download any of the stored data and metadata for further processing.

The Inner Disk of RY Tau: Evidence of Stellar Occultation by the Disk Atmosphere at the Sublimation Rim from K-band Continuum Interferometry

“…Interestingly, Labdon et al (2019) found that the location of the inner disk of SUAur is similarly controlled by the sublimation of 0.40 μm grains while Davies et al (2018) found that larger (1.2 μm) grains were required to reproduce their Hand K-band interferometric observations of HD142666. Both SUAur and HD142666 are similar in mass (~M 2  ) to RY Tau, while HD142666 is older (>10 Myr; Dionatos et al 2019) and more luminous (~L 20 ;…”

Quantitative polarimetry of the disk around HD 169142

“…For our determination we took the data from the DIANA database (Dionatos et al 2019) and their resulting model fit, which matches excellently these data points. We interpolated the points to obtain an SED with constant d logλ steps with a step size of 0.01, which is about the average spacing of available data points.…”

Detection of HC18O+ in a protoplanetary disk: exploring oxygen isotope fractionation of CO

“…The dust temperature in the disk is calculated using the radiative transfer code RADMC-3D (Dullemond et al 2012). The input UV and X-ray spectra of TW Hya are taken from Dionatos et al (2019), and they are added to a Black body component with the effective temperature of 4110 K (Andrews et al 2012). The local UV radiation and X-ray radiation fields inside the disk are also calculated with RADMC-3D, considering both absorption and scattering.…”