Infrared study of transitional disks in Ophiuchus with Herschel

TL;DR

This study uses Herschel Space Observatory data to analyze the outer regions of protoplanetary disks in Ophiuchus, identifying a new transitional disk candidate through far-infrared flux measurements.

Contribution

It provides new far-infrared fluxes for known disks and identifies a previously unrecognized transitional disk in Ophiuchus.

Findings

Detected 49 disks in Herschel bands

Provided new far-infrared flux measurements

Identified one new transitional disk candidate

Abstract

Context. Observations of nearby star-forming regions with the Herschel Space Observatory complement our view of the protoplanetary disks in Ophiuchus with information about the outer disks. Aims. The main goal of this project is to provide new far-infrared fluxes for the known disks in the core region of Ophiuchus and to identify potential transitional disks using data from Herschel. Methods. We obtained PACS and SPIRE photometry of previously spectroscopically confirmed young stellar objects (YSO) in the region and analysed their spectral energy distributions. Results. From an initial sample of 261 objects with spectral types in Ophiuchus, we detect 49 disks in at least one Herschel band. We provide new far-infrared fluxes for these objects. One of them is clearly a new transitional disk candidate. Conclusions. The data from Herschel Space Observatory provides fluxes that complement previous infrared data and that we use to identify a new transitional disk candidate.