11/3: VPL Astrobiology Colloquium presents Steven Desch

Event Details

11/3: VPL Astrobiology Colloquium presents Steven Desch

Time: November 3, 2015 from 3pm to 7pm
Location: Adobe Connect
Website or Map: http://connect.arc.nasa.gov/u…
Event Type: online, seminar
Organized By: Mike Toillion
Latest Activity: Nov 3, 2015

Export to Outlook or iCal (.ics)

Event Description

Astronomical, Planetary, and Meteoritic Evidence Our Solar System Formed Under Intense UV Irradiation

Presenter: Steven Desch, Arizona State University
When: November 3, 2015 3PM PST

Evidence is mounting that our Solar System formed in a high-mass star-forming region with massive stars and was exposed to their intense far ultraviolet (FUV) radiation. I will present astronomical observations that indicate this is a common mode of star formation. I will discuss how the architecture of our solar system points to the Sun’s protoplanetary disk being sculpted by photoevaporation by FUV irradiation, and I will discuss meteoritic evidence from oxygen isotopes that also points to FUV irradiation. I will then discuss the effects that FUV irradiation had on volatile transport through our disk. I will present a model in which the noble gas abundances of Jupiter’s atmosphere also appear to require intense FUV photoevaporation, and I will discuss further possible effects on water 'snow lines’ in the solar nebula.

To join using a videoconferencing system:

Please RSVP to Mike Toillion (mike.toillion@nasa.gov) if you will be joining by Polycom.

To view the slides, connect to http://connect.arc.nasa.gov/uwseminar/

To join using a web browser:

The slides and audio/video for this meeting will be presented using Adobe Connect. To join the meeting, connect to:


If you are having problems connecting, you can try joining http://connect.arc.nasa.gov/uwseminar/?launcher=false, or rebooting your computer, or try joining from another network.

Comment Wall


RSVP for 11/3: VPL Astrobiology Colloquium presents Steven Desch to add comments!

Join SAGANet

Attending (2)


Ask your questions here!

Started by Gina Misra in SAGANet Discussions. Last reply by Pritha Jaipal on Friday. 181 Replies

If you are trying to ask a question live during Ask an Astrobiologist, please do so in the main chatroom at the bottom of the screen! You can also ask on twitter @saganorg…Continue

© 2021   Blue Marble Space, a non-profit organization committed to science and science outreach.   Powered by

Badges  |  Report an Issue  |  Terms of Service