Optical Variability of the T Tauri Star HH30
arXiv:astro-ph/0008301 · doi:10.1086/312920
Abstract
We report results of VRI photometric monitoring of the T Tauri star plus disk system HH30. We find that HH30 is highly variable over timescales of a few days with Delta V~1.5 mag, Delta I~1.1 mag. Furthermore we find hints of periodicity with periodograms indicating possible periods of 11.6 and 19.8 days. The VRI photometry is available through the anonymous ftp service. We model the variability with Monte Carlo radiation transfer simulations for a spotted star plus disk system and find that the large variability is best reproduced with a single hot spot and circumstellar grains that are larger than typical interstellar grains. The apparent existence of a single hot spot and the need for larger, more forward throwing grains is consistent with previous modeling of HST imagery.
arXiv comment7 pages, 3 figures. Accepted for ApJ Letters
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Cited by in corpus (10)
- The Spectral Energy Distribution of HH30 IRS: Constraining The Circumstellar Dust Size Distribution
- High-resolution Near-Infrared Images and Models of the Circumstellar Disk in HH 30
- Collimation, Proper Motions, and Physical Conditions in the HH 30 Jet From HST Slitless Spectroscopy
- Plateau de Bure Interferometer Observations of the Disk and Outflow of HH30
- HST/WFPC2 Images of the GG Tauri Circumbinary Disk
- Spatial study with the VLT of a new resolved edge-on circumstellar dust disk discovered at the periphery of the rho Ophiuchi dark cloud
- Hot spots and a clumpy disk: Variability of brown dwarfs and stars in the young Sigma Ori cluster
- Extended Near-Infrared Emission from Candidate Protostars in the Taurus-Auriga Molecular Cloud
- Structures in circumbinary disks: Prospects for observability
- Disc wind in the HH 30 binary models