Monitoring of Evryscope targets requested for follow-up
Active Dates: June 30, 2017 – Dec. 31, 2017
Abstract:
The Evryscope team is running a survey of transiting planetesimals around white dwarfs (WDs). To date, WD1145+017, discovered by Kepler, is the only WD found to have disintegrating transiting Ceres-mass objects. The debris/planetesimals transits candidates found by Evryscope need to be confirmed with V or R Johnson filtered, higher SNR (~50) and faster (~25-60s) cadence photometry than Evryscope. We encourage AAVSO observers to follow up these debris/planetesimals transits candidates. As a by-product of this survey, Evryscope is also detecting WDs and hot sub dwarfs which show variability of all kinds which we encourage to follow up too.
Justification:
Cadences of 25-60 sec should allow resolution of a debris disk or period determination for the variables on the list. A SNR>50 or higher is requested for all targets.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| EC 01541-1409 | 12.29 | V361HYA |
Cadence: Not Specified Precision: 100 |
Not Requested |
| NGC 1068 | None |
Cadence: Not Specified Precision: 100 |
Not Requested | |
| HE 0218-4447 | 12.89 | None |
Cadence: Not Specified Precision: 100 |
Not Requested |
| HE 0218-3437 | 13.39 | ELL |
Cadence: Not Specified Precision: 100 |
Not Requested |
| 2MASS J05144393-0848064 | 11.21 | None |
Cadence: Not Specified Precision: 100 |
Not Requested |
| ASAS J102322-3737.0 | 11.61 | EA/HW |
Cadence: Not Specified Precision: 100 |
Not Requested |
| JL 94 | 13.03 | None |
Cadence: Not Specified Precision: 100 |
Not Requested |
| EC 23073-6905 | 12.59 | None |
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. Octavi Fors; Imported Campaign (Alert Notice #585)