Oak Ridge National Laboratory
The Max Planck Institute for Astrophysics
Stony Brook University
(deadline January 31, 2012)
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INT Program INT-12-2a|
Core-Collapse Supernovae: Models and Observable Signals
June 25 - July 27, 2012
Core-collapse supernovae are some of the most energetic explosions in
the Universe. As such they play a major role in many astrophysical
phenomena, including galactic dynamics, nucleosynthesis, and neutron
star and black hole formation. Furthermore, the combination of
extreme energetics and densities make these explosions fascinating
nuclear and particle physics laboratories. Hence, a solid theoretical
framework for the explosion mechanism will greatly illuminate solutions
to some of the most important questions in astrophysics and fundamental
The purpose of this workshop is to greatly advance our
understanding of the explosion mechanism by fostering collaborations
among the theorists, observers, and nuclear and particle
physicists. After many years of intense research, SN theorists are
starting to converge on viable solutions to the explosion mechanism.
same time, electromagnetic observations are starting to probe closer
to the mechanism, and neutrino and gravitational wave dectectors are
coming on line that can probe the mechanism directly. These
multi-messenger observations promise to greatly constrain the
theory. The time is ripe for these communities to share the latest
results, define the next questions in SN research, and begin to
constrain the physics of core-collapse supernovae.
Goals and benefits
The main goals and benefits of the program will be:
An intense exchange between the involved communities is necessary
to make progress towards a better theory of stellar explosions and
their consequences. This is highly desirable in view of the growing
pool of observational data on supernovae, including faint, transient
events that shed new light on stellar explosions, as well as in view
of upcoming gravitational-wave measurement possibilities (advanced
LIGO will be operational in 2014) and the existing early supernova
warning network (SNEWS) of neutrino detectors.
- Fostering exchange between competing groups about the
different modeling approaches and partially conflicting results.
- Attaining a better understanding of the role of
hydrodynamical instabilities, in particular in 3D, in combination
with neutrino and nuclear physics in the supernova core.
- Solidifying links between the communities concerned with
numerical modeling, nuclear and neutrino physics, and
astronomical observations including electromagnetic, neutrino,
and gravitational-wave signals.
The 5-week "backbone program" will be on Hydrodynamics and Microphysics of the Supernova Explosion Mechanism(s).
It will consist of solicited lectures intermixed with presentations of
new results, with ample time for collaboration and directed discussions.
It is supposed to attract (less than or about 20) participants who would
like to stay for the major part of the workshop and intend to make
active use of the ideal venue for close and intense interactions.
These long-term participants can be members from the modeling groups
and from the nuclear and particle physics communities, but may also
include representatives from the phenomenology and observational side.
A healthy mix of junior (students and postdocs) and senior participants
will be desired.
We plan to have two special workshops for 30-50 participants:
July 2-6, 2012, Nuclear and Neutrino Physics in Stellar Core Collapse
There is a mandatory registration fee of $40 due when you arrive for this workshop.
Please make your payment in cash -- exact change preferred -- or by check drawn on
a U.S. bank. Sorry we cannot accept credit cards.
Special topics: nuclear and neutrino physics aspects of supernovae,
the high-density equation of state, supernova nucleosynthesis,
neutrino interactions in dense, hot matter, neutrino oscillations.
July 16-20, 2012, Probing the Supernova Mechanism by Observations: Schedule
There is a registration fee of $55 to attend this workshop. Please pay in cash -
exact change preferred! - or by check to University of Washington.
Sorry, we cannot accept credit cards.
Special topics: supernova progenitors and remnants,
observations of electromagnetic signals and radiation transport
modeling, searches for transient events, neutrino and gravitational-wave
These events are intended to invite participants who are unable to
attend for a longer period. They will be organized in the form of
workshop-like sessions of concentrated talks and discussions.
Click here for the Schedule.
Detailed questions to be addressed
For the backbone program:
For special workshop on "Nuclear and Neutrino Physics":
- What is the role of hydrodynamic instabilities (SASI, convection,
MRI) in the explosion mechanism?
- What are the crucial differences in the results between 2D
and 3D simulations?
- Can we understand the differences of 2D and 3D results from different
- How can we compare? Which test problems could clarify numerical
- Can the outcome of numerical models and theoretical considerations
be condensed into a useful "effective theory of the supernova
explosion mechanism" with predictive capabilities?
- What are the major uncertainties in the description of hot and
dense supernova matter that are relevant to understanding
- What are the implications of collective flavor conversions and
possible sterile neutrinos?
For special workshop on "Probing the Supernova Mechanism by Observations":
- Do we understand the physics between about 1/100 of nuclear matter
density and nuclear matter density?
- Are light clusters abundant and what is their relevance for the
supernova explosion and neutrino emission properties of the
- What are the major (supernova-relevant) uncertainties of neutrino
interactions in the supernova core and in correlated nucleon matter?
- New nuclear physics ingredients for supernova models, in particular
for a consistent treatment of stellar matter and neutrino interactions?
- Does the neutrino-p process happen in supernovae?
- Are supernovae a site for weak or strong r-processing?
Is crucial physics being missed in the numerical models?
- What do observations tell about the progenitor-supernova link?
- What do observations tell us about supernova asymmetries, and how
important is rotation in the SN core?
- Can observations of explosion asymmetries constrain the explosion
- How do recently discovered faint transients and rare supernova(-like)
events challenge our picture of the explosion mechanism(s)?
- What will we learn from neutrino and gravitational-wave measurements?
- What are the major uncertainties of stellar progenitor models?
- What are the prospects for multi-dimensional stellar evolution
data for core-collapse modeling?