Monitoring requested for 11 dwarf novae in support of HST observations in 2023-2024
Active Dates: Nov. 1, 2023 – Sept. 30, 2024
Abstract:
The campaign involves monitoring 11 dwarf novae cataclysmic variables to support Hubble Space Telescope observations. The main aim is to obtain ultraviolet spectroscopy of accreting white dwarfs using the Cosmic Origin Spectrograph onboard the HST to measure their effective temperatures, masses, and accretion rates.
Justification:
Because of the extremely variable nature of accreting white dwarfs, monitoring is crucial to ensure observations are obtained during quiescence to prevent damage to the Cosmic Origin Spectrograph detectors.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| CS Ind | 11.50 | UGSU |
Cadence: Custom Precision: 100 |
Not Requested |
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
V (Johnson)
Comparison Stars:
No comparison stars provided
Co-Authorship
Observers are not eligible for co-authorship.
Additional Observer Input:
Nightly snapshots in V are requested. CS Ind is planned to be observed with HST in August 2024. The table of all 2023-2024 targets and approximate HST observation windows is given in the Campaigns and Observation Reports forum thread for this campaign (below). When the observing window for each target is known and then the exact time is announced, the forum will be updated. TEXT BEING ADDED 7 Aug 2024
Additional Submission Location:
none
Notes:
Principal Investigator: Anna Francesca Pala; Imported Campaign (Alert Notice #838)