VLBA15B-312
The unprecedented metamorphosis of SN2014C
Abstract
The mass-loss history of massive stars is one of the least understood and yet fundamental aspects of stellar evolution, i.e. HOW and WHEN do massive stars lose their H-rich envelopes? We request VLBI observations to map the ejecta and environment surrounding SN2014C: a Type Ib/c supernova strongly interacting with a thick, hydrogen-rich circumstellar shell ejected by the progenitor star prior to explosion with a flux density of ~10 mJy at 7 GHz currently. The combination of VLBI data with our on-going VLA-CARMA-SMA, optical, and Chandra/Swift campaigns will allow an unprecedented view of the SN2014C circumstellar shell and enable firm constraints on the physical parameters associated with the dynamical interaction of the shockwave with the medium, and hence trace back the mass-loss history of its stellar progenitor.
Investigators
| Name | Institution |
|---|---|
| Jerod Parrent | Center for Astrophysics | Harvard & Smithsonian |
| Bevin Zauderer | Harvard University; New York University; National Science Foundation |
| Danny Milisavljevic | Purdue University; Center for Astrophysics | Harvard & Smithsonian |
| Raffaella Margutti | California at Berkeley, University of; Northwestern University; Harvard University; New York University |
| Michael Bietenholz | York University; Hartebeesthoek Radio Astronomy Observatory |
| Atish Kamble | Center for Astrophysics | Harvard & Smithsonian |
| Alicia Soderberg * | Center for Astrophysics | Harvard & Smithsonian |
| vlbiobs vlbiobs | National Radio Astronomy Observatory |
| vlbaops vlbaops | National Radio Astronomy Observatory |
| GBT Operator | Green Bank Observatory |
* indicates the PI