10 papers · 1 filter
The feedback of massive stars on the ISM: XMM-Newton view of the LMC superbubble N51D
Dominik J. Bomans, Joern Rossa, Kerstin Weis +1
N51D (= DEM L 192) appears at first glance as a nearly circular, 120pc diameter bubble of ionized gas around the LMC OB association LH 54. A deeper look reveals a complex web of fi…
Eta Carinae: The physical structure of the outer ejecta and the strings
Kerstin Weis
The outer ejecta is part of the nebula around Eta Carinae. They are filamentary, shaped irregularly and larger than the Homunculus, the central bipolar nebula. While the Homuculus…
LBV (Candidate) Nebulae: Bipolarity and Outflows
Kerstin Weis
The most massive evolved stars (above 50 M_sun) undergo a phase of extreme mass loss in which their evolution is reversed from a redward to a blueward motion in the HRD. In this ph…
A High-Resolution Study of Eta Carinae's Outer Ejecta
Kerstin Weis, Michael F. Corcoran, Kris Davidson +1
Eta Carinae is a very luminous and unstable evolved star. Outflowing material ejected during the star's giant eruption in 1843 surrounds it as a nebula which consists of an inner b…
On the X-ray emission of Eta Carinae's outer ejecta
Kerstin Weis, Michael F. Corcoran, Kris Davidson
The extremely luminous and unstable star Eta Carinae is surrounded by ejecta formed during the star's giant eruption around 1843. The optical nebula consists of an inner region, th…
LBV Nebulae: The Mass Lost from the Most Massive Stars
Kerstin Weis
The most massive stars, with initial masses above ~50M_sun, encounter a phase of extreme mass loss - sometimes accompanied by so-called giant eruptions - in which the stars' evolut…