As I promised, I'd pass along some cool things from the world of Exoplanets, Astrobiology and Comparative Planetology as I find them.
The video below was recorded two days ago at the SETI institute and features a subject we talk about a lot: Habitable or "Goldilocks" Zones.
Over the last few years the field of exoplanets has grown rapidly from just raw detection of planets to now include learning more about what their
conditions are like. We've now got cloud maps of several large gas giant exoplanets. And we've begun to learn the density and thus likely composition
of others smaller, rocky worlds like our Earth.
This process of learning more about these far away worlds is known to us astronomers as exoplanet characterization. A key step towards this
characterization is the determination of which planets occupy the Habitable Zone (HZ) of their host stars.
As the data from NASA's Kepler mission continues to be processed, the orbital period sensitivity is increasing and we now know there are numerous
exoplanets which occupy the HZ of their host stars.
In the talk below, Dr. Kane will describe the properties of the HZ, the dependence on the types of stars these planets orbit, and the current state
of exoplanet detections in the HZ.
Along the way Dr. Kane will attempt to dispel some common misconceptions regarding the Habitable Zone.
Dr. Kane will relate HZ results to the calculation of the frequency of planets like Earth and the frequency of planets like Venus within our Milky
Finally, Dr. Kane will present several case studies of Habitable Zone Kepler planets, including circumbinary planets (planets which orbit two stars
like Tatooine in Star Wars) for which the Habitable Zones are time-dependent.
edit on 24-7-2014 by JadeStar because: (no reason given)
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