Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 739, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/739/1/L7
Keywords
accretion, accretion disks; circumstellar matter; planets and satellites: formation; protoplanetary disks; stars: individual (IRAS 04368+2557); stars: variables: T Tauri, Herbig Ae/Be
Categories
Funding
- National Science Foundation (NSF) [AST-1003318, AST-0702933]
- PNPS of CNRS/INSU
- ANR of France [ANR-07-BLAN-0221]
- European Commission [PIEF-GA-2008-220891]
- ANR [ANR-2010-JCJC-0504-01]
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1003318] Funding Source: National Science Foundation
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We are undertaking a multi-frequency Expanded Very Large Array (EVLA) survey of edge-on protoplanetary disks to probe the growth of solids in each disk, sedimentation of such material into the disk midplane, and the connection of these phenomena to the planet formation process. The projection of edge-on disk systems along our line of sight enables a study of the vertical stratification of large grains with fewer model dependencies than would be required for disks that are more face-on. Robust studies of the spatial distribution of grains up to approximate to 1 cm in size are possible with the wavelength range and sensitivity of the EVLA. In this contribution, we describe target selection and observational strategies. First results concerning the Class 0 source IRAS 04368+2557 (L1527 IRS) are presented, including a study of this source's 8.46 GHz continuum variability over short and long time baselines and an indication that its protoplanetary disk may have a dearth of pebble-sized grains.
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