R Aqr photometry (especially B) and spectroscopy needed
Active Dates: Feb. 3, 2020 – Feb. 1, 2021
Abstract:
The symbiotic binary (Mira + white dwarf) R Aqr is presently undergoing the eclipse that occurs about every 40 years. Researchers are requesting continued close coverage of R Aqr in order to study variations and other behaviors seen during this eclipse, particularly focusing on B and V photometry. Nightly spectroscopic observations are also requested.
Justification:
To study extremely interesting short low amplitude variations with a timescale of 10 to 20 days, and spikes observed in B photometry during R Aqr's eclipse. These observations are important to understand what is happening around the companion and the sizes of the regions involved.
Requested Data Types:
Photometry, Spectroscopy
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| R Aqr | 5.20 | M+ZAND |
Cadence: Not Specified Precision: 100 |
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: Margarita Karovska, Lee Anne Willson, George Wallerstein; Imported Campaign (Alert Notice #696)