Campaign on Northern T Tau Stars
Active Dates: Nov. 12, 2020 – Dec. 17, 2020
Abstract:
Dr. Fred Walter (Stony Brook University) requests AAVSO observers to monitor 13 Northern T Tau stars in support of a multi-site multiwavelength campaign being carried out in November and December. The HST ULLYSES project is designed to obtain a statistically complete catalog of ultraviolet observations of a set of galactic stars while the HST can still obtain UV spectra. This AAVSO campaign will be part of a larger program called ODYSSEUS, which includes ground-based optical and near-IR photometry and spectroscopy.
Justification:
The goal of this observing campaign is to supplement the TESS photometry with filter photometry to distinguish the possible causes of brightenings and fadings in the light curve of T Tauri stars, including magnetic flares, enhanced accretion rates, starspots, and obscuration by a warped dust disk. The science goals are to understand the disk accretion processes that build up stars and drive their outbursts.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| R Ori | 9.05 | M |
Cadence: Not Specified Precision: 100 |
Not Requested |
| TX Ori | 11.70 | CTTS |
Cadence: Not Specified Precision: 100 |
Not Requested |
| CVSO 11 | 15.57 | WTTS |
Cadence: Not Specified Precision: 100 |
Not Requested |
| BMAM-V462 | 17.48 | R |
Cadence: Not Specified Precision: 100 |
Not Requested |
| BMAM-V499 | 18.70 | UG |
Cadence: Not Specified Precision: 100 |
Not Requested |
| NSV 2091 | 13.90 | CTTS/ROT |
Cadence: Not Specified Precision: 100 |
Not Requested |
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
No photometry filters provided
Comparison Stars:
No comparison stars provided
Co-Authorship
Observers are not eligible for co-authorship.
Additional Observer Input:
Not provided
Additional Submission Location:
Not provided
Forum URL
N/A
Notes:
Principal Investigator: Dr. Fred Walter; Imported Campaign (Alert Notice #725)