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)