Monitoring of HD 5980 requested for multiwavelength campaign
Abstract:
Dr. Noel Richardson (Universite de Montreal, formerly at Georgia State University) has requested monitoring of the Small Magellanic Cloud eclipsing binary HD 5980 (in Tucana) as part of a multiwavelength campaign he is coordinating to study this unusual system.
Justification:
Simultaneous ground-based photometry from AAVSO expert observers with preference to filtered CCD measurements (UBVRI or any subset of these) will allow full update of the orbital ephemeris. High cadence observations on the nights of the eclipses and good coverage on remaining nights will help detect a period change in the system, informing us about the mass loss in this massive, luminous star system dominated by strong winds.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| HD 5980 | 8.80 | EA/GS/WR+SDOR |
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. Noel Richardson; Imported Campaign (Alert Notice #472)