Alert Notice 580: ASASSN-17fp rebrightening event and ongoing monitoring

Active Dates: April 28, 2017 – June 6, 2017


Abstract:

ASASSN-17fp, discovered on 2017 April 28 and classified as a helium dwarf nova, was observed to be in outburst again on May 16 after fading 2.5 magnitudes from its original outburst. Immediate time-series coverage was requested.

Justification:

Time series observations during the bright state are valuable to determine if the 51 min period seen in earlier data returns and to understand its relation to the binary system's orbital period or the distortion of the accretion disc in outburst. Nightly snapshots for two weeks after it fades are also requested in case it rebrightens again.

Requested Data Types:

Photometry



Targets
Name Magnitude Variability Type Photometry Notes Spectroscopy Notes
ASASSN-17fp 15.70 UGSU/IBWD

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. Elme Breedt & Dr. Tom Marsh; Imported Campaign (Alert Notice #580)