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Ravi Kopparapu's Personal Meeting Room - Shared screen with speaker view
Ravi Kopparapu
58:44
At what distance is the planet located, and with what kind of telescope?
Jill Tarter
01:09:36
Over many orbits, the cloud cover of an exoplanet will vary. How do you differentiate this change from different surface features?
James Green
01:12:29
its got to be all about what portion of the spectra and polarization changes
Karan Molaverdikhani
01:13:24
I have a similar question to Jill’s: how robust/sensitive is this technique to the variability of albedo; for instance in the case of periodic or episodic phenomena/variabilities.
Karan Molaverdikhani
01:14:03
Also finding the solution to the photometric variations/modulations is usually an ill-posed problem and the solution is usually not unique. How the best solution is being selected in these cases?
Ravi Kopparapu
01:23:58
What are your IRVBU wavelength ranges?
James Green
01:29:13
Also please note the observations like this we did with the Deep Impact s/c looking at the Earth. we clearly saw variations on the earth with clouds, land, oceans, AND we observed what happened when the Moon eclipsed the earth..
kaltenegger
01:29:14
This link might be useful for starters on the problem - Enric Palle identified how long you would need to observe an Earth to identify continents versus cloud coverage - he found you need observations every 2 hours.
kaltenegger
01:29:18
https://iopscience.iop.org/article/10.1086/528677
Seth Redfield
01:30:12
How sensitive are the solutions to a precisely known rotation period?
James Green
01:37:56
see Crow et al, ApJ, 2011
James Green
01:38:35
Livengood et al., Astrobiology, 2011
Ravi Kopparapu
01:38:53
I was going to say Livengood et al. 2011. Thanks Jim !