R Aqr photometry and spectroscopy requested in support of Chandra observations
Abstract:
Dr. Margarita Karovska (Center for Astrophysics|Harvard & Smithsonian) requests the assistance of AAVSO observers in monitoring the symbiotic binary (Mira + white dwarf) R Aqr in support of upcoming Chandra observations. The Chandra observations are scheduled for September 26, 2022 UT. Starting now, Dr. Karovska requests photometry (UBVRIH, mid-IR if at all possible), high speed photometry (UB), and spectroscopy. Visual observations are welcome. The cadence requested is nightly from now through September 26, then twice a week through October 10. R Aqr has a V range of 5.2 - 12.4. Additional Chandra observations of R Aqr are planned for later this season. R Aqr is presently undergoing the eclipse that occurs about every 40 or so years.
Justification:
Support for upcoming Chandra observations and monitoring during eclipse of R Aqr.
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; Imported Campaign (Alert Notice #792)