[ExI] kepler study says 8.8e9 earthlike planets

Tomaz Kristan protokol2020 at gmail.com
Tue Nov 12 07:32:55 UTC 2013


But if you don't have a spectrometer, you have some RGB images and you can
do this:

http://www.cabrillo.edu/~dbrown/tracker/AAPT_spectroscopy_poster.pdf

There is no excuse of not having a spectrometer on Kepler. If you really
want to find free oxygen on a distant planet, you can do it with the above
technique.

In fact, traces of O2 have been found on some giants like Kepler 22b. Tiny
amounts. So, it should be easy to spot 20% of free oxygen in an atmosphere,
even far away.





On Mon, Nov 11, 2013 at 5:09 PM, Tomaz Kristan <protokol2020 at gmail.com>wrote:

> I can't find any direct reference to this now. Currently everybody agrees
> that Kepler is unfortunately unable to find free oxygen, but the next
> mission will be able to.
>
> Still I remember it. 100 000 stars will be scanned they said and we can
> "hope for a free oxygen footprint". Something like that.
>
> Now, wait for TESS!
>
>
> On Mon, Nov 11, 2013 at 3:49 PM, Alfio Puglisi <alfio.puglisi at gmail.com>wrote:
>
>>
>>
>> On Mon, Nov 11, 2013 at 3:14 PM, Tomaz Kristan <protokol2020 at gmail.com>wrote:
>>
>>> > Actually, no it cannot do that.
>>>
>>> I can. Now NASA wants TESS mission to do the spectroscopy and oxygen
>>> search. I don't know when it was postponed to  the next mission. But
>>> originally was advertised for Kepler.
>>>
>>
>>
>> You mean that there were plans to have a spectrometer on Kepler in
>> addition to ordinary focal plane detectors? That's news to me, but I would
>> be interested in some links if you have them
>>
>> Alfio
>>
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>
>
> --
> https://protokol2020.wordpress.com/
>



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