[AAA] Fwd: SuperVirtual 2022: FIRST ANNOUNCEMENT

[Melina Bersten]

Hola,
¿Podían hacer circular este anuncio?
Muchas gracias,
Melina Bersten

---------- Forwarded message ---------
De: Super Virtual <supervirtual2021 en gmail.com>
Date: mié, 22 jun 2022 a las 1:40
Subject: SuperVirtual 2022: FIRST ANNOUNCEMENT
To: Super Virtual <supervirtual2021 en gmail.com>


Dear colleagues,

Following the success of the SuperVirtual 2021 conference last year, we are
delighted to make the first announcement for SuperVirtual 2022: “SuperVirtual
2022 - From Common to Exotic Transients”. The meeting will be held in
virtual mode from November 7th to 11th, 2022.

SuperVirtual 2022 will cover both core-collapse and thermonuclear
supernovae, as well as some of the novel transients that are being found by
current surveys. While in person conferences are now thankfully resuming,
we hope that this online-only meeting will continue to provide a useful
addition. In particular we intend for SuperVirtual 2022 to offer an
opportunity to attendees who have travel or financial restrictions.

SuperVirtual 2022 aims to organise a conference that is as inclusive and
participatory as possible. It is planned that both the selection of focus
topics and that of contributed speakers will make significant use of
participant input - more details of this will be circulated at a later date.

Please note that the time zone of the conference has been changed from
2021, and for this year we will start each day at 21:00 UTC. This is to
allow those in unfavourable time zones last year to connect at a more
comfortable time (while still being suitable for as many locations as
possible).

For more information, please visit the conference website.

https://sites.google.com/view/supervirtual2022/

If you wish to receive updates on SuperVirtual 2022, please register your
email address here.

https://forms.gle/WQsqikRxffAjqFdZ9

Organization committee

Joe Anderson (European Southern Observatory, Chile)

Melina Cecilia Bersten (National University of La Plata, Argentina)

Janet Ting-Wan Chen (Stockholm University, Sweden)

Morgan Fraser (University College Dublin, Ireland)

Kate Maguire (Trinity College Dublin, Ireland)

Raffaella Margutti (University of California, Berkeley, USA)

Takashi Moriya (National Astronomical Observatory of Japan, Japan)

Ken Shen (University of California, Berkeley, USA)

Scientific Rationale

Wide-field transient surveys are currently delivering large statistical
samples of supernovae (SNe), while also discovering peculiar and exotic
events. Samples of ‘standard’ core-collapse events afford strong
constraints on their progenitor properties and explosion mechanisms.
Meanwhile, the discovery of peculiar explosions often challenges our
application of standard SN physics to such emerging classes. SuperVirtual
2022 will address many of these developments - providing a review of SN
observations and physics, while exploring the limits of our current
understanding of the processes driving SN diversity.

There is now strong consensus that the majority of hydrogen-rich SNeII
arise from massive red supergiant stars. However, there is still
disagreement on the exact mapping from progenitor and explosion properties
to transient characteristics. The last decade has seen mounting evidence
that at least a significant fraction of stripped-envelope-SNe arise from
binary systems, although which envelope-mass stripping process dominates
for which progenitors is still debated. In addition, it now appears that
ejecta-CSM interaction is not only important for our understanding of
narrow-line SNeIIn, but may also be critical for many other SN types -
especially at early times in their evolution. This understanding is being
enhanced by advances in survey and follow up capabilities - observations of
which will be discussed at this meeting.

Knowledge of the progenitors and explosion mechanisms of SNeIa continues to
grow, with larger statistical samples in addition to higher quality data of
individual explosions. Such data includes observations within hrs/days of
explosion, affording investigation into the prevalence of early 'excess
emission' that constrains the progenitor scenario. Very late-time
observations constrain the isotopic abundances produced in SNeIa, thus
constraining the explosion mechanism. However, it is still unclear which
progenitor systems produce the bulk of the SNIa population. This conference
will provide a platform to discuss new observations, progenitor and
explosion modelling, and possible future strategies to constrain the SNIa
phenomenon.

The number of ‘non-standard’ SNe also continues to grow. Samples now exist
of exotic explosions such as superluminous SNe (SLSNe) and SNeIbn. However,
in the former it is still unclear which powering mechanism enables such
large luminosities, while the properties of the latter challenge our
understanding of late-time stellar evolution. Meanwhile, the diversity and
number of 'peculiar' thermonuclear SNe continues to grow - from SNIax to
.Ia explosions. SuperVirtual 2022 will motivate discussion on the state of
the art of the explosion physics and progenitor evolution required to
explain these diverse events. There are also a number of classes where only
a few well-observed events exist. ‘Fast transients’ (coming in different
flavours with different nomenclature - e.g. ‘FBOTs’) have timescales making
them difficult to observe, but additionally have properties that are
difficult to understand without invoking exotic physical scenarios. One of
the most recent additions to the SN family is the SNIcn class, which
further stretches the family of SNe that are significantly affected by
ejecta-CSM interaction. Finally, together with these new classes, a larger
number of SNe are discovered with specific features that also require an
extension of any standard SN model - e.g. short timescale modulations in
light curve shapes.

A full understanding of the SN phenomenon and its diversity is only
possible through comparing transient observations with predictions from
explosion models and stellar evolution. At SuperVirtual 2022, SN
observations will be confronted with the latest modelling of stellar
explosions to survey the current landscape of SNe; their numerous different
classes; and their progenitor populations.
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