|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Waterfalls around Protostars
If you have a question about this talk, please contact David Titterington.
How material flows from molecular cores through disks to stars is still poorly constrained. While theories for how this infall should proceed have been around for some time, observational evidence and analysis has been limited to slab models which can only give infall velocities on characteristic scales. Water is uniquely sensitive to motion of any kind within the protostellar environment due to its large Einstein A coefficients. The combination of multiple water transitions observed as part of the `Water in star-forming regions with Herschel’ (WISH) survey and full 1-D non-LTE radiative transfer models of protostellar envelopes provides a new way to probe infalling envelope material. I will present modeling results of seven Class 0/1 protostars which show signs of infall in their water lines where we constrain the flow of material on core to envelope scales, along with other highlights from the WISH survey.
This talk is part of the Cavendish Astrophysics Seminars series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsPharmacology Tea Club Michaelmas 2015 Clinical Science Seminars Open Research Cambridge
Other talksSperm Donation and Motherhood: British and French perspectives The transiting dust clumps of a young Sun like star Jewish Life in Poland Today Adrian Seminar Series - Annual Lecture "How Do You Feel? Ion channels that sense mechanical force" Creating and erasing memories with epigenetics The life of forms: biology and modernist sculpture