Accretion and luminosity bursts across the stellar mass spectrum

Оnline workshop

15th and 16th of December 2020



About the workshop

The purpose of the workshop is to bring together scientists working on the accretion burst phenomenon in low- and high-mass young stellar objects and on accretion variability in general. In recent years it has become evident that the accretion bursts are not limited to young low-mass stars but are also inherent to massive star formation. Theoretical works predict that this phenomenon can also present in the low-metallicity environments. It is therefore a proper time to get together and discuss the recent observational and numerical developments in this field and try to bring the burst mechanism operating across the stellar mass spectrum to a common ground.

The key issues for us to tackle

  • The mechanism(s) of outbursts and/or variabilities in general.
  • The role of bursts in low-mass and high-mass star formation.
  • The role of bursts in disk chemodynamical evolution and planet formation in general.

Specific topics to discuss

a) Which features, activities, and parameters provided by observations are useful for tackling the key issues?
b) After all, are bursts and variabilities common among low- and high-mass protostars?
c) Can we observationally distinguish between different burst mechanisms?
d) What is the character of mass accretion in sub-solar metallicity environments and at low redshifts?
e) Any requests from theorists to the observers and vice versa?

The duration of the workshop is two days, each day there will be about eight short reports (15+5 min) followed by a 45-min long discussion session.
The time layout of the workshop is as follows:
08:00-11:45 (UK, Ireland).
09:00-12:45 (Central European Time),
11:00-14:45 (Moscow),
16:00-19:45 (Taipei),
The workshop will take place in the online format using Zoom connections.
A Slack workspace will be used for speaker Q&A and discussions.

Invited speakers (confirmed):

  • Dominique Meyer (U. of Potsdam)
  • Jochen Eisloeffel (Tautenburg Observatory)
  • Alessio Caratti o Garatti (DIAS, Dublin)
  • Agnes Kospal (Konkoly Observatory)
  • Carlos Contreras Pena (U. of Exeter, U of Hertfordshire)
  • Philip Lucas (U. of Hertfordshire)
  • Dimitris Stamatellos (U. of Central Lancashire)
  • Michael Kueffmeier (U. of Virginia, MPE)
  • Tamara Molyarova (INASAN, Moscow)
  • Yaroslav Pavlyuchenkov (INASAN, Moscow)
  • Fernando Cruz-Saenz de Miera (Konkoly Observatory)
  • Zhen Guo (U. of Hertfordshire)
  • Kundan Kadam (U. of Western Ontario)
  • Hau-yu Baobab Liu (ASIAA, Taipei)
  • Sheng-Yuan Liu (ASIAA, Taipei)
  • Vardan Elbakyan (U. of Leicester, SFedU)

Organizers

  • Eduard Vorobyov (U. of Vienna, SFedU)
  • Michihiro Takami (ASIAA, Taipei)
  • Vardan Elbakyan (U. of Leicester, SFedU)

Code of conduct

    Please, behave professionally. Harassment and sexist or racist comments or jokes are not appropriate. Be respectful and do not insult or put down other attendees of the event. Critique ideas not people. If participants wish to share photos of a speaker on social media, we strongly recommend that they first get the speaker’s permission. Please, contact the organizers for reporting inappropriate behaviour of any kind.

Questions? You can contact the organizers by sending an email to: eduard.vorobiev[at]univie.ac.at