Hallo Beisammen,
Heute gibt es einen Vortrag von Dr. Ann-Marie Madigan (UC Berkeley), der die Bahnanomalien ohne extra Planet erklaert. Der Vortrag wird auch bei Youtube archiviert.
Clear Skies,
Please join us today for a free public event at the Microsoft Silicon Valley Campus.
Click here for a map.
Please register on Eventbrite (click here) so we can print you a badge at the door.
It IS necessary to have a visitors badge (name badge) in order to gain access to the
auditorium, which is inside a Microsoft office building.
It is NOT necessary to register in advance, however the benefit of pre-registration
is that a printed badge will be available for pick-up in the lobby, and can then be
used again for all future talks.
For those who do not want to pre-register, a visitors badge can be generated in the
lobby before the talk. A few minutes of extra time should be allowed for in this case.
If you can't be at Microsoft in person, the talk will be recorded and displayed
on our YouTube channel a week after the talk at the following link:
http://youtube.com/user/setiinstitute/videos
****************************************************************
To convert this email into an Event in Thunderbird, right (cntl) click and select 'Convert To...' then 'Event'
Title: The bizarre orbits of minor planets beyond Neptune and Planet Nine
Speaker: Ann-Marie Madigan (UC Berkeley)
When: Today, 26 Jan 2016 12:00pm PDT
Location: Galileo Room, Microsoft Silicon Valley, La Avenida, Mountain View (click here for map)
Eventbrite: Click to register your attendance on Eventbrite (strongly recommended)
Poster: http://www.seti.org/sites/default/files/csc-Jan-16.pdf
Twitter: Follow or retweet (==>)setitalks, use hashtag #setitalks
Presenting Sponsor (2016): Leonard Tramiel
****************************************************************
Abstract:
The major planets in our solar system are on nearly circular orbits in a well-defined
disk plane. The minor planets, however, take very different paths around the sun.
Many minor planets are on orbits that tilt 30 degrees or more out of this disk plane;
bizarrely, as Dr. Madgian will describe in the talk, they all tilt the same way! Theories
for their unusual orbits include the presence of an undetected super-Earth or 'Planet Nine'
at hundreds of AU, or an encounter with a passing star which deposited its own minor
planets in our outer solar system.
In this talk, Dr. Madigan will show that these theories are unnecessary, and that it is
the gravitational forces between the minor planets themselves that result in their unusual
orbital properties. Though individually of low mass, the minor planets together can
dictate their own dynamics. This explanation suggests that there is a (tilted and highly-
inclined) disk of minor planets, at least two orders of magnitude more massive than the
Kuiper Belt awaiting discovery at hundreds of AU. New surveys such as Pan-STARRS
and DECam will soon verify/falsify this prediction.
Dr. Madigan will also talk about the recent (yesterday's) suggestion from two Caltech
scientists of a potential super Earth beyond Neptune, which they termed "Planet Nine".
****************************************************************
