@ Johns Hopkins University
Detecting rings around exoplanets
Figure 2 from "Detectability of planetary rings around an extrasolar planet from reflected-light photometry"
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 job of summing up the paper, so I’ll just provide a couple of other quick-read papers and a book reference if you’re interested in learning more.
Transit Detectability of Ring Systems Around Extrasolar Giant Planets
Detectability of planetary rings around an extrasolar planet from reflected-light photometry
Planetary Rings
This latter reference, a book from the Cambridge Planetary Science series, is a good introduction to (Saturn’s) rings suitable for undergraduates.
| Print article | This entry was posted by afuller on April 28, 2011 at 1:21 pm, and is filed under Current Events & Research. Follow any responses to this post through RSS 2.0. You can leave a response or trackback from your own site. |
No trackbacks yet.
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 >
50 billion and counting….
about 2 years ago - 2 comments
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.
The cost of a newly discovered planet
about 2 years ago - 1 comment
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 >
Calling all podcasters!
about 2 years ago - 1 comment
I mentioned this about a month ago to this list, so I’d like to remind everyone about a great public outreach opportunity. We’re currently signed up for several slots in the 365DaysOfAstronomy.org podcast. This is a podcast open to submission from all over the world about any topic of interest related to astronomy. As such, More >
Kepler 10b — a very hot rocky planet
about 2 years ago - No comments
Justin just posted this on the email list:
The Kepler team has announced their first terrestrial-sized exoplanet discovery, Kepler-10b. It’s 4.6 Earth masses, 1.4 Earth radii (denser than Earth; more like solid iron or lead), and in an 0.84-day orbit. So, most likely way too hot to be habitable, but still, huge hope for detecting More >
Hunt new planets in your pajamas
about 2 years ago - 3 comments
Veselin sent this out to the email list a few weeks ago. PlanetHunters.org is an offshoot of the Galaxy Zoo project and a fun way to spend a few minutes (or hours) looking at light curves. Check out their introductory video:
Welcome to Planet Hunters from The Zooniverse on Vimeo.
The Original Bad Boy Of Science, Tycho Brahe, turns 464 today!
about 2 years ago - 6 comments
Happy birthday, Tycho Brahe! 464 years ago The Man With The Golden Nose was born, and the world was never the same again. Has there ever been anyone in the history of science who’s life has been as colorful as Tycho Brahe? Did you know his body was exhumed last month for forensic testing to More >
Meet with Jim Kasting tomorrow at 10am
about 2 years ago - 1 comment
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 More >
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 >
Astrobiological Factors in Exoplanet Exploration Strategies
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
This is what I am attempting to find. This is what I ask high quality. The details provided in here is usually to the most successful. I have to say you need to have invested some time in putting these content material jointly. They may be match with your topic. I am going to endorse these to everyone and to every single piece of my friends. I am going to get back here to check out the quality of work. Appreciation for building this kind of transpire.
about 9 months ago
Virtually all of what you claim is astonishingly legitimate and that makes me wonder the reason why I had not looked at this in this light previously. Your article truly did switch the light on for me as far as this subject matter goes. Nevertheless at this time there is 1 point I am not necessarily too cozy with so whilst I make an effort to reconcile that with the core theme of the position, allow me see what the rest of the visitors have to say.Nicely done.
about 2 days ago
The existence of a study conducted by researchers of the planets and the solar system is quite surprising because they managed to find a new planet. Therefore, the study of the solar system as it must have the support of all parties.