[AAA] Special Issue on "Evolved Massive Stars in Transition Phases"

[Lydia Cidale]

Hola Elsa,
          podrias difundir este mensaje entre los socios de la AAA.
          Muchas gracias,
          Lydia

Dear Colleagues

We would like to draw your attention to the call for papers for a Special
Issue on "Evolved Massive Stars in Transition Phases". This issue is aimed
at providing a platform for recent results and new ideas in the field.

The post-main sequence evolution of massive stars is one of the big open
issues in modern astronomy. On their evolutionary paths, crossing the
region of the classical blue supergiants, all the way up to the final
supernova explosion, massive stars pass through several transition phases
(B[e] supergiants, red supergiants, yellow hypergiants, luminous blue
variables, and Wolf-Rayet stars), in which they often undergo strong mass
loss. The physical mechanisms behind it and the amount of material
ejected, both in form of asymmetric, steady winds or violent episodic
eruptions, are currently unknown but crucial to understand stellar
evolution. Recent advances in both numerical modeling techniques and
high-quality observations will provide the key physical ingredients for
the next generation of evolutionary and wind models. We invite
investigators to contribute to original research articles as well as
review articles that will stimulate the continuing effort to understand
both the classical blue supergiants and massive stars in transition
phases. We are interested in articles that explore aspects of
evolutionary connections, the mass-loss behavior, the triggering
mechanisms for variability and mass eruptions, the interaction of the
ejected material with the environment, and dust production from both
observational and modeling perspectives. Potential topics include, but
are not limited to:

1. Origin of the variability seen in classical blue supergiants and
evolved massive stars in transition phases, focusing in particular on
the role of the high luminosity and proximity to the Eddington limit,
pulsations, rotation, and magnetic fields

2. Insights from high-quality spectroscopic, photometric, polarimetric,
and interferometric data into reliable timescales of the variabilities
and their influence throughout the evolution of massive stars

3. The shape of the circumstellar environment and the feedback of the
interstellar medium to the variable mass loss and eruptions, and how
studies on the stellar environments improve our knowledge about the
history of the gas and the evolution of these stars

4. Evidences of evolutionary connections (progenitors, fates) between
different transition phases

5. Role of binarity in the evolution of massive stars, and the
consequences of binary interactions for the surroundings

All submissions will be refereed. More details on the schedule, and
information on the submission process can be found at the web-address
below.

On behalf of the editors
Michaela Kraus, Lydia Cidale and Jose Groh

Weblink: http://www.hindawi.com/journals/aa/si/839059/cfp/

Manuscript Due: Friday, 3 January 2014