[Graduados] Reunión SuperVirtual 2023: FIRST ANNOUNCEMENT

[Secretaría de Ciencia y Técnica]

A toda la comunidad,

a continuación les reenviamos información sobre la reunión SuperVirtual 
2023, la cual se llevará a cabo entre los *días 6 y 10 de noviembre 
próximos.*

Saludos,

Secyt-FCAG



-------- Mensaje reenviado --------

Dear colleagues,

We are delighted to make the first announcement for SuperVirtual 
2023.The meeting will be held in virtual mode from November 6th to 10th, 
2023.

As in SuperVirtual 2022, SuperVirtual 2023 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 2023 to offer an opportunity to attendees who have travel 
or financial restrictions. SuperVirtual 2023 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 2022, and for this year we 
will start each day at 14:00 UTC. This is to allow those in unfavourable 
time zones last year to connect at a more comfortable time.

For more information, please visit the conference website.
https://sites.google.com/view/supervirtual2023/

Organization committee
Joe Anderson (European Southern Observatory, Chile)
Melina Cecilia Bersten (National University of La Plata, Argentina)
Janet Ting-Wan Chen (National Central University, Taiwan)
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. New and up-coming facilities will provide another leap in sample 
sizes or afford new observations at distinct wavelengths and out to late 
epochs. Samples of ‘standard’ supernovae enable 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. In addition, the early 
detection of nearby transients can lead to a plethora of constraints on 
progenitors, explosion mechanisms, and stellar evolution - as 
exemplified by the recent case of SN2023ixf. SuperVirtual 2023 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 prevelance of 
early 'excess emission' that constrains the progenitor scenario. Very 
late-time observations constrain the isotopic abundances produced in 
SNeIa, thus constraing 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 2023 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 2023, 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.
SuperVirtual 2023 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.
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