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… based on empirical sensitivity limits, we show for the first time that the HEK project is sensitive to even the smallest moons capable of being Earthlike for 1 in 4 cases (after accounting for false-positives). In terms of planet-mass ratios, we find even that the Earth-Moon mass-ratio is detectable for 1 in 8 of cases, posing a challenge but not an insurmountable barrier. Mass ratios of ∼ 10−4, such as that of the Galilean satellites, have never been achieved. However, if Galilean-like satellites reside around lower-mass planets than Jupiter, of order ∼ 20 M⊕, then we do find sensitivity, as demonstrated by the limit of 1.7 Ganymede masses achieved for Kepler-10c.
“Here we report on our null results and the first estimate of empirical sensitivities. Ultimately, we would like to actually discover a clear signal and are pursuing some interesting candidates we hope will pan out. Either way though, I like to recall what the Nobel Prize winning American physicist Richard Feynman said about science: ‘Nature is there and she’s going to come out the way she is, and therefore when we go to investigate it we shouldn’t pre-decide what it is we’re trying to do except to find out more about it’.”
originally posted by: funbox
a reply to: JadeStar
wow , you really are giving that equation a bashing
great stuff but no more please ....
o go on then , so how does this now factor into the drake equation ? don't forget to add your previous sums and workings out
funbox
originally posted by: Misterlondon
Nice thread
I've always thought it would be so cool to see another planet in the sky, like in those images. You also have to wonder how things would be affected by said planet. . For example seasons, the gravity, would the population use it to tell the time, would they pray to it.. etc.. etc. . Etc....
originally posted by: rossacus
Great post. Amazing insight and we'll articulated to cater for the hobbyists and the enliightened. The thing I struggle with is aren't all these exo moons surrounding large gas giants victim of gravitational pulls that destabilise the inner cores of these moons or have they found evidence to the contrary in distant solar systems. It would be difficult to inhabit these types of moons orbiting larger celestial objects if these violent planet/moon relationships are the norm.
originally posted by: funbox
a reply to: JadeStar
not shying away from the math are you ? , but ill grant you respite until a greater mean can be seen, still all fresh atm I guess
besides , forget about cups of tea , the maths would probably have to be done in a restaurant, under duress of a dinnerparty
funbox
originally posted by: Elementalist
Jadestar; I absolutely Love, love, your passion and intellect of space and it's magnificent creations..
Your threads are laid out like a pro, and the informative details you share with this community is nearly unmatched by most threads authored.
I thank you for your passion and sharing it here with us, your knowledge and views of the universe.
Great work, great thread, keep it up!
originally posted by: JadeStar
Yes. In one case I present it could lead to all sorts of different ideas by a primitive culture.
If you look closely at the sunrise, sunset, eclipse video i put together you'll see that at certain times of the moon's year the circular shadow of the habitable moon would appear on the gas giant's atmosphere and then not long after this happens the gas giant would begin to eclipse the star so there would be days with two nights.
Imagine the sorts of mythology that would produce!
originally posted by: Elementalist
a reply to: JadeStar
And for that, I wish you luck and balance on your journey of chasing your dreams, and fulfilling them.
You sure are in depth with the universal creation outside of our atmosphere.
One day maybe NASA drafts you, Goodluck on wherever the universe takes you friend!
Regards