SDSS J141118.31+481257.6 rebrightening - photometry requested

Active Dates: June 1, 2018 – June 1, 2018


Abstract:

Further to AAVSO Alert Notice 635, the AMCVn binary SDSS J141118.31+481257.6 is rebrightening, and the expected superoutburst may be underway.

Justification:

As predicted the object started to brighten again. Last night [May 31/Jun 1] we found it at 16mag and quickly rising with ZTF. I expect that it will now go into a superoutburst phase where it stays very bright for a few weeks. During that phase we are expected to see superhumps in the accretion disc which show a period which is slightly different than the orbital period (46min for this system) and are powerful to learn about the mass ratio and accretion discs in general.

Requested Data Types:

Photometry



Targets
Name Magnitude Variability Type Photometry Notes Spectroscopy Notes
SDSS J141118.31+481257.6 12.40 UGWZ/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. Thomas Kupfer; Imported Campaign (Alert Notice #636)