EM Cyg monitoring requested
Active Dates: Nov. 8, 2019 – Dec. 19, 2019
Abstract:
A number of cataclysmic variable stars are now known to exhibit radio emission, presumably due to jets as observed in other accreting systems with neutron stars and black holes rather than a white dwarf. Fender et al. (2019) have recently reported radio flares in SS Cyg both at early and late times in relation to the beginning of the outburst. We want to study how common these radio flares are in other systems, and analyse some of their properties.
Justification:
The AAVSO monitoring of EM Cyg will trigger the observations in radio with the Arcminute Microkelvin Imager Large Array (AMI-LA). We would like the monitoring to continue until the system goes back into quiescence, so we can check whether or not there are optical rebrightenings associated with the radio flares.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| EM Cyg | 11.90 | UGZ+E |
Cadence: Not Specified Precision: 100 |
Not Requested |
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. Rob Fender, Dr. Roque Ruiz-Carmona; Imported Campaign (Alert Notice #685)