Alert Notice 533: Coverage of V5668 Sgr (Nova Sgr 2015 No. 2) requested in support of HST spectroscopy
Abstract:
Dr. Peter Kuin (Mullard Space Science Laboratory, University College London) and colleagues in the Swift Nova group have requested AAVSO observers' assistance in multicolor monitoring of V5668 Sgr (Nova Sgr 2015 No. 2) in support of an upcoming spectroscopic observation with the Hubble Space Telescope Imaging Spectrograph (STIS).
Justification:
The purpose of the requested monitoring is to know the brightness of V5668 Sgr at the time of the STIS observation and to provide the HST operators with a status report of its brightness 24 hours before the observation time so they can make a final decision about approving the observations. If the nova re-brightens by about a magnitude, it could be too bright for STIS and the observations would be cancelled. The high resolution spectrum will help determine the abundances and velocities of the different atomic and ionic species in the nova ejecta, and learn something new about the dust formation.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| V5668 Sgr | 4.30 | NA |
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. Peter Kuin; Imported Campaign (Alert Notice #533)