Halting Planet Migration in the Evacuated Centers of Protoplanetary Disks
Open Access
- 20 July 2002
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 574 (1) , L87-L89
- https://doi.org/10.1086/342370
Abstract
Precise Doppler searches for extrasolar planets find a surfeit of planets with orbital periods of 3-4 days and no planets with orbital periods less than 3 days. The circumstellar distance R0, where small grains in a protoplanetary disk reach sublimation temperatures (~1500 K), corresponds to a period of ~6 days. Interior to R0, turbulent accretion due to magnetorotational instability may evacuate the disk center. We suggest that planets with orbital periods of 3-4 days are so common because migrating planets halt once this evacuated region contains the sites of their exterior 2 : 1 Lindblad resonances.Keywords
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This publication has 37 references indexed in Scilit:
- Evolution of “51 Pegasus b-like” planetsAstronomy & Astrophysics, 2002
- Near‐Infrared Interferometric Images of the Hot Inner Disk surrounding the Massive Young Star MWC 349AThe Astrophysical Journal, 2001
- Passive Irradiated Circumstellar Disks with an Inner HoleThe Astrophysical Journal, 2001
- Infrared Interferometric Observations of Young Stellar ObjectsThe Astrophysical Journal, 2000
- Spectral Energy Distributions of T Tauri Stars with Passive Circumstellar DisksThe Astrophysical Journal, 1997
- Layered Accretion in T Tauri DisksThe Astrophysical Journal, 1996
- New pre-main-sequence tracks for M less than or equal to 2.5 solar mass as tests of opacities and convection modelThe Astrophysical Journal Supplement Series, 1994
- Irradiation of accretion disks around young objects. I - Near-infrared CO bandsThe Astrophysical Journal, 1991
- A powerful local shear instability in weakly magnetized disks. I - Linear analysis. II - Nonlinear evolutionThe Astrophysical Journal, 1991
- Disk-satellite interactionsThe Astrophysical Journal, 1980