Request to Monitor EF Eri for Hubble Space Telescope Observations
Active Dates: Jan. 6, 2008 – Jan. 17, 2008
Abstract:
Dr. Paula Szkody (University of Washington) has requested our help in monitoring the magnetic cataclysmic variable EF Eri for upcoming Hubble Space Telescope observations. Confirming observations are requested to ensure that EF Eri is fainter than the safe observing threshold during the HST observing window on 2008 January 17 UT.
Justification:
Time-resolved spectroscopy with the Hubble Space Telescope will be used to investigate the physical origin of ultraviolet variability observed with the GALEX satellite in 2004 (also by Szkody et al). HST can only observe objects fainter than 14th magnitude due to the sensitivity of its instruments, and so observations of EF Eri can only be made if it is known that the star is fainter than those limits.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| EF Eri | 13.70 | AM |
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. Paula Szkody; Imported Campaign (Alert Notice #365)