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)