A Resolved and Asymmetric Ring of PAHs within the Young Circumstellar Disk of IRS 48

• Published in: The Astrophysical journal Vol. 842; no. 2; pp. 77 - 93
• Main Authors: Schworer, Guillaume, Lacour, Sylvestre, Huélamo, Nuria, Pinte, Christophe, Chauvin, Gaël, du Foresto, Vincent Coudé, Ehrenreich, David, Girard, Julien, Tuthill, Peter
• Format: Journal Article
• Language: English
• Published: Philadelphia The American Astronomical Society 20.06.2017; IOP Publishing; American Astronomical Society
• Subjects: Accretion disks; APERTURES; Aromatic hydrocarbons; Astrophysics; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASYMMETRY; Circular orbits; Color temperature; COMPARATIVE EVALUATIONS; Computer simulation; Depletion; Dust; DUSTS; EMISSION; ENERGY SPECTRA; Fluxes; Grains; Infrared astronomy; INTERFEROMETRY; INTERSTELLAR SPACE; LIFETIME; Masking; Mathematical models; ORBITS; Parameters; Physics; planetary systems; PLANETS; POLYCYCLIC AROMATIC HYDROCARBONS; protoplanetary disks; PROTOPLANETS; RADIANT HEAT TRANSFER; Radiative transfer; RESOLUTION; RINGS; Silicates; SIMULATION; Spectral energy distribution; STARS; stars: individual (IRS-48); stars: pre-main sequence; Stellar evolution; Stellar models
• ISSN: 0004-637X; 1538-4357
• DOI: 10.3847/1538-4357/aa74b7

For one decade, the spectral type and age of the Oph object IRS-48 were subject to debate and mystery. Modeling its disk with mid-infrared to millimeter observations led to various explanations to account for the complex intricacy of dust holes and gas-depleted regions. We present multi-epoch high-a...