Campaign Monitoring of the Helium double peak emission at 6678 Å in gamma Cas
Active Dates: June 17, 2020 – Dec. 31, 2024
Abstract:
This campaign monitors the HeI 6678 Å emission of the star gamma Cas, known for its double-peaked emissions. The primary goal is to gather high-resolution spectra to study short-term emission events and their durations, which contribute to understanding how Be stars lose their mass and build their disks.
Justification:
The HeI 6678 emission in gamma Cas exhibits V/R variations that highlight localized differences in CS temperature and density. This information is crucial to comprehend the mechanisms of mass loss and disk formation in Be stars. High-resolution, high S/N spectra are required to measure these weak emissions reliably.
Requested Data Types:
Spectroscopy
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| R Cas | 4.70 | M | Not Requested |
Cadence: Not Specified Resolution: 250 Desired SNR: 100 |
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: Ernst Pollmann; Imported Campaign (Alert Notice #707)