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Much of my current work is devoted to studying T Tauri stars; which are low mass, young stars that have only recently emerged from their natal molecular cloud cores to become optically visible. Many members of this group show a host of unusual features which appear to be related in one way or another to the fact that they are surrounded by active accretion disks. These are the Classical T Tauri stars, and their circumstellar accretion disks are sites where planetary systems are currently forming.
Much of my work has been centered on trying to understand the (sometimes very extreme) variability found in Classical T Tauri stars. One particular Classical T Tauri star, SU Aur shows dramatic periodic variations in its H-alpha and H-beta emission lines, indicating that large amounts of material a few stellar radii away from this star are, nevertheless, tied to the stellar surface. Another Classical T Tauri star, Sz 68, shows weaker, but similar periodic variations in its H-alpha emission line. Unfortunately, another star we have studied in detail, DR Tau, does not show such clear cut periodic variations. The best guess for what ties the material there is very strong, large scale magnetic fields.
Much of my work has been centered on trying to understand the (sometimes very extreme) variability found in Classical T Tauri stars. One particular Classical T Tauri star, SU Aur shows dramatic periodic variations in its H-alpha and H-beta emission lines, indicating that large amounts of material a few stellar radii away from this star are, nevertheless, tied to the stellar surface. Another Classical T Tauri star, Sz 68, shows weaker, but similar periodic variations in its H-alpha emission line. Unfortunately, another star we have studied in detail, DR Tau, does not show such clear cut periodic variations. The best guess for what ties the material there is very strong, large scale magnetic fields.
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Astrophysical journal/The Astrophysical journalno. 1 (2024): 1-1
Research notes of the AASno. 5 (2023): 91-91
The Astrophysical Journalno. 2 (2023): 102-102
The Astrophysical Journalno. 2 (2023): 92-92
The Astrophysical Journalno. 1 (2022): 8-8
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#Papers: 220
#Citation: 8116
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G-Index: 77
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