Monitoring of the Symbiotic Variable RT Cru Requested
Active Dates: Jan. 27, 2012 – Jan. 27, 2012
Abstract:
The symbiotic variable RT Cru has brightened in hard x-rays. AAVSO assistance has been requested in monitoring RT Cru both now and in the future to observe any unusual optical activity. The Swift/BAT hard X-ray light curve indicates gradual brightening over several years.
Justification:
The hard X-ray emission suggests the accreting white dwarf is near the Chandrasekhar limit and might be a candidate supernova Type-Ia progenitor. Fast photometry and optical spectroscopy could help interpret the X-ray brightening.
Requested Data Types:
Photometry, Spectroscopy
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| RT Cru | 10.90 | 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: Dr. Jeno Sokoloski; Imported Campaign (Alert Notice #451)