期刊
ASTROPHYSICAL JOURNAL
卷 583, 期 1, 页码 L35-L38出版社
UNIV CHICAGO PRESS
DOI: 10.1086/367814
关键词
accretion, accretion disks; circumstellar matter; planetary systems : formation; planetary systems : protoplanetary disks; planets and satellites : formation; radiative transfer
We analyze the spectral appearance of gaps occurring in circumstellar disks possibly indicating the presence of a protoplanetary or planetary object. Based on the standard parameterized disk model, we explore the 10-parameter space of possible disk configurations and properties to identify the parameter ranges where the ratio of the continuum flux from disks without and with a gap is maximum. The exploration is performed with a Monte Carlo search; the maxima are found using a simulated annealing algorithm. The strongest influence on the spectra occurs for wavelengths ranging from 10 to 300 mum m, with a maximum flux ratio of 1.5 for a single-planet gap and 2.5 for a double-planet gap, respectively. Analyzing the resulting spectra, we conclude that, investigating spectral energy distributions without spectral dust features, gaps typically caused by planets cannot be detected as a prominent feature.
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