GP Com observations needed now for HST coverage
Abstract:
Dr. Anna Francesca Pala (European Space Agency, ESAC, Spain) informs us that the cataclysmic variable GP Com will be observed by the Hubble Space Telescope on April 29-30, 2022. Coverage is requested from now through May 20. Observations from tonight and tomorrow night are crucial. Please observe GP Com a few times per night tonight through April 30, then nightly through May 20.
Justification:
It will be crucial to have a positive V measurement 24 hours before the scheduled HST time so the HST team can make a go-nogo decision. A minimum SNR~20 is requested. If the target is too faint to obtain the minimum SNR in V, switch to CV. If a target is observed going into outburst, please submit your observation(s) as soon as possible and begin obtaining multiple observations per night.
Requested Data Types:
Photometry
Targets
| Name | Magnitude | Variability Type | Photometry Notes | Spectroscopy Notes |
|---|---|---|---|---|
| GP Com | 15.70 | IBWD |
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. Anna Francesca Pala; Imported Campaign (Alert Notice #775)