Proposal #547
| Proposer | (35150) Dr. Pradip Karmakar (pradipkarmakar39@gmail.com) obscode: KPRB |
|---|---|
| Assigned To | (3663) Dirk Terrell |
| Date Submitted | Aug. 25, 2024 |
| Status | Declined |
| Priority | Normal |
| Proposal | Urgent request for AU Mic b and c transit for 24 and 25 th August 2024. |
| Target | RA (H.HH) | Dec (D.DD) | Magnitude | Telescope | Observation Frequency | Expiration Date | Proprietary Term |
|---|---|---|---|---|---|---|---|
| AU Mic | 20.752600 | -31.34090 | 8.73–8.56 | — | — | — | No |
Comments
- (35150) Dr. Pradip Karmakar — Aug. 26, 2024, 3:44 a.m.
Please consider only R filter
- (35150) Dr. Pradip Karmakar — Aug. 28, 2024, 6:31 a.m.
Please increase the observation time upto 2024-09-31.
Hope you consider my application and request.- (4726) Kenneth Menzies — Aug. 28, 2024, 6:51 p.m.
Does the transit happen on Aug 24-25? You provided no details.
- (3663) Dirk Terrell — Aug. 29, 2024, 2:41 p.m.
The TAC has considered this proposal and rejected it for feasibility reasons. The transit depths for these two planets are too small (~0.002 mag or less) to achieve with the AAVSOnet equipment, and the star has a large intrinsic variability on top of that.. The discovery of these planets was really only possible because of the very high precision of the TESS observations. Always keep in mind the limits of ground based data when selecting projects like this. A 0.02 mag transit is not hard to do from the ground. 0.002 mag is another thing entirely, and practically impossible when the host star has large variability like AU Mic (rotational spot modulation and flares). Look at figure 1 in the discovery paper to see what I mean:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7323865/
Comments on this proposal are closed.