Monitoring of GW Lib to support XMM-Newton observation
Abstract:
Dr. Koji Mukai (NASA Goddard Space Flight Center) and colleagues have requested AAVSO observations of the WZ Sge type dwarf nova GW Lib in support of observations with the ESA XMM-Newton space observatory scheduled for 2018 February 17 05:46:41 - 21:36:41 UT. In addition to being a WZ Sge variable that had a remarkable outburst in 2007, GW Lib is the prototype of dwarf novae in which the white dwarf is seen to be pulsating. The purpose of the XMM-Newton observation is twofold: (1) To take a deep X-ray look at GW Lib, 11 years after the outburst; (2) To use the optical monitor on-board XMM-Newton in fast mode to study the white dwarf pulsation in the UV. The HST data from 2017 will be utilized in the pulsation study.
Justification:
The XMM-Newton observations are not constrained by the brightness of GW Lib at the time of the observations, but it is important to know the optical brightness of the system before, during, and after for the current study.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| GW Lib | 8.20 | UGWZ+ZZ/GWLIB |
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. Koji Mukai; Imported Campaign (Alert Notice #614)