@ Johns Hopkins University
Meet with Jim Kasting tomorrow at 10am
Don’t forget that Jim Kasting is presenting tomorrow at 12:30pm as part of the Astrobiology Lecture series at the John Bahcall Auditorium, STScI.
We’ve been given the opportunity to meet with him before his presentation at 10am in STScI room 311. If you’re interested, reply to the list or drop me a line because we need to let Daniel Apai know if there’ll be more than 4 of us.
Here’s one of his papers on arxiv.org: “Exoplanet Characterization and the Search for Life.”
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55 Cnc e: 0.74 day period, 8.57 Mearth, 1.63 Rearth, *11* g/cm^3!
about 2 years ago - 2 comments
The exoplanet 55 Cnc e may get its period and mass revised downward due to recent observations that support a paper from last year.
In short, we thought it had a period of 2.8 days and a minimum mass of 14 Mearth. This is from radial velocity measurements. The paper from last year, however, made the More >
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Just saw this on astrobites.com: Could Rings Exist Around Kepler “Warm Saturns”?
It’s a new paper on arxiv.org that follows a couple of older papers that try to pin down the detectability of rings around exoplanets. In this case, the authors are focusing only on planets and candidate planets detected by Kepler. Astrobites does a good More >
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about 2 years ago - 1 comment
There’s a lot of weird and silly stuff on arxiv.org, but the idea behind this paper is two too weirds to pass up (that is, two orders of magnitude more “weird” than usual).
Dark Matter And The Habitability of Planets
In many models, dark matter particles can elastically scatter with nuclei in planets, causing those particles to More >
50 billion and counting….
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From Discovery News:
There are at least 50 billion exoplanets in our galaxy. What’s more, astronomers estimate that 500 million of these alien worlds are probably sitting inside the habitable zones of their parent stars.
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I get forwarded stuff. A forward I got today is for a week-old BoingBoing post about Greg Laughlin’s “exoplanet valuation” equation. Laughlin is essentially trying to find a way to quantitatively compare the importance of each exoplanet discovery. In this case, he’s trying to put it in terms of dollars and cents. I don’t see where on More >
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about 2 years ago - No comments
Justin just posted this on the email list:
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Welcome to Planet Hunters from The Zooniverse on Vimeo.
James Kasting’s Astrobiology Seminar this Friday at STScI
about 2 years ago - 2 comments
From the Astrobiology Lectures listserv comes this announcement for Friday’s astrobiology lecture at STScI:
Friday, December 10, 2010 at 12:30 p.m. in the John Bahcall Auditorium – STScI (Light lunch provided and discussion at 12:00 p.m., talk at 12:30 p.m.) For more information see http://astrobiology.stsci.edu
Speaker: James Kasting, Penn State University
Title: HOW TO FIND A More >
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about 2 years ago - No comments
We’ve got another lecture in the STSci Astrobiology Lecture Series coming up tomorrow! This month the lecture will be by Wes Traub from the Jet Propulsion Laboratory at Caltech. It’ll be in Mudd 100 at 12:30pm tomorrow. The lecture is entitled “Astrobiological Factors in Exoplanet Exploration Strategies.” The abstract:
What is the best strategy for finding More >
about 1 year ago
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