The great eruption of eta-Carina - Evidence for large mass and very fast flows?

by Prof. Nir Shaviv

HUJI

at Astrophysics and Cosmology Seminar

Wed, 15 Mar 2023, 11:10
Sacta-Rashi Building for Physics (54), room 207

Abstract

Over the past two decades, the estimated mass ejected during eta Carina’s giant eruption increased by an order of magnitude, to more than 20 solar masses. Over the past decade, light echos from the giant eruption revealed what appeared to be outflows larger than 10000 km/s. However, are these extreme values indeed firmly supported by the data? We will discuss alternative explanations, and show that the observations are consistent with a steady state super-Eddington wind which only ejected a few solar masses and no fast velocity component, which instead can be naturally explained through Raman scattering.

Created on 10-03-2023 by Zitrin, Adi (zitrin)
Updaded on 10-03-2023 by Zitrin, Adi (zitrin)