Conférences - Astronomie, astrophysique et cosmologie - Suède

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1
Solar Helicities in Theory and Observations: Implications for Space Weather and Dynamo Theory
04 mar 2019 - 29 mar 2019 • Stockholm, Suède
Résumé:
Magnetic helicity is a conserved quantity in ideal MHD and is also a topological invariant. Due to these properties, it plays special roles for the operation of the global solar dynamo, and in the release of solar eruptive events, but both of these related processes remain poorly understood. On both themes, theoretical models would benefit from being validated and constrained with observational data, and the increasing amounts of observational data could be more efficiently used as basis to improve the models. The abundant observational data pouring in from various sources poses its own challenges and sometimes cross-calibrations are lacking. This program will bring together solar observers and dynamo theorists to work on these topics. We aim to obtain crucial new knowledge on the operation of the global solar dynamo itself, but also how it drives eruptive events which then are observed as space weather.
Identifiant de l'évènement:
1064990
2
Effective Theories of Quantum Phases of Matter
06 mai 2019 - 31 mai 2019 • Stockholm, Suède
Résumé:
Physical systems look different when observed at different resolutions: what appears as a continuum liquid to the naked eye becomes a cluster of jiggling atoms when observed at the resolution of an electron microscope. Effective field theory provides a description of physics in terms of degrees of freedom appropriate to a given resolution. Over the last couple of decades, physicists have developed effective field theory tools which, to a large extent, unify fields as diverse as atomic and condensed-matter physics, particle and nuclear physics, and cosmology. The ensuing interaction between different branches of physics has never been as fruitful as it is now. Numerous physical phenomena, first predicted and studied in high-energy physics, have found their realization in novel materials. On the other hand, the richness of condensed-matter physics provides a lasting source of inspiration for new developments in high-energy physics and cosmology. Extremely useful in general, the effective field theory tools become indispensable for quantum phases of matter whose low-energy physics is driven by collective excitations, either due to the presence of spontaneous symmetry breaking or due to strong microscopic interactions. The aim of this program is to give a new impulse to a further development of this exciting interdisciplinary field. We bring together leading practitioners working on effective theories of quantum phases of matter across several branches of physics. Our goal is to map out important open problems with broad relevance and look for new directions towards their solution, to reinvigorate existing collaborations and foster new connections.
Identifiant de l'évènement:
1065054
3
Statistical Physics of Complex Systems
07 mai 2019 - 11 mai 2019 • Stockholm, Suède
Identifiant de l'évènement:
1089409
Sujets apparentés:
4
Zoom-In and Out: From the Interstellar Medium to the Large Scale Structure of the Universe
03 jui 2019 • Stockholm, Suède
Identifiant de l'évènement:
1149553
5
Zoom-In and Out: From the Interstellar Medium to the Large Scale Structure of the Universe
03 jui 2019 - 28 jui 2019 • Stockholm, Suède
Résumé:
This Nordita Program is devoted to theoretical and observational studies of the interstellar medium of galaxies across cosmic time, and to their implications in shaping future line-intensity mapping experiments which have recently generated a tremendous interest in the Community of astrophysicists and cosmologists.
Identifiant de l'évènement:
1065031
6
Webinar — Impacts and their Role in the Evolution of Life
10 jui 2019 - 13 jui 2019 • Tällberg, Suède
Résumé:
Topics covered by the conference will range from the role of impacts in the early history of the Solar System over impacts physics, the characterisation of impactors (asteroids, meteorites, comets etc) and impact sites to the role impacts could have played in the emergence and evolution of life and their possible threat to life on Earth. Two further important aspects will be discussed: the geoconservation of impact sites as well as the use of impacts in education and outreach in order to get the general public interested in science. The conference will be held at Hotel Dalecarlia**** in the picturesque village of Tällberg in the Siljan crater area with good connections to Stockholm International Airport. Excursions to geologically interesting sites in the area are planned. We are looking forward to receiving your contribution to our event. Since bursaries for students and early career scientists will be available we would kindly ask you to forward this invitation to possibly interested people. Deadline for abstract submission is March 31st, 2019. For further information about the event please check the conference website: http://www.nordicastrobiology.net/Impacts2019
Contact:
Tél.: [0046855378649];     Email.: wgeppert@fysik.su.se
Sujets:
Geophysics, Planetary Science, Evolution, Impact Physics, Geoconservation, Outreach
Identifiant de l'évènement:
1159784
7
From Stars to Planets II - Connecting our understanding of star and planet formation
17 jui 2019 • Gothembourg, Suède
Identifiant de l'évènement:
1086345
8
Astrochemistry: From nanometers to megaparsecs - A symposium in honour of John H. Black
24 jui 2019 • Gothembourg, Suède
Identifiant de l'évènement:
1133112
9
Holographic QCD
22 jul 2019 - 26 jul 2019 • Stockholm, Suède
Résumé:
In the last few years there has been renewed interest in QCD and hadronic dynamics using holographic gauge/gravity duality, resurge of the large N methods, progress in string models, integrability, unitarity and bootstrap and more. Also, many new experimental results were reported by ALICE at LHC regarding collectivization in pp and pA collisions, by LHCb at CERN and the B- and C-factories regarding the existence of exotics and the spectroscopy of heavy-light systems, and more recently the reporting of 2 neutron star mergers by the LIGO collaboration and its constraint on the nuclear dense equation of state. The conference will bring together practitioners of these interdisciplinary fields to discuss these exciting new developments, and explore the relevance of the holographic framework for addressing these observations.
Identifiant de l'évènement:
1089353
10
Gravitational Waves from the Early Universe
20 sep 2019 • Stockholm, Suède
Résumé:
Gravitational waves promise a new window into the highest-energy events in the evolution of the universe. The recent LIGO/Virgo detections of gravitational waves from the mergers of binary black holes and binary neutron stars and have ignited interest in the future direction of gravitational wave astronomy. A space-based laser interferometer, pioneered by NASA's LISA concept and the European Space Agency's eLISA program and ESA's recent spectacularly successful LISA Pathfinder mission, would enable direct detection of gravitational waves in the milliHertz range. A lower frequency range would allow detection of supermassive black hole mergers, tracing the galaxy merger history and serving as cosmic sirens to probe the universe's expansion history, as well as precursors for the LIGO sources. A space-based detector would also be sensitive to stochastic gravitational wave backgrounds produced by unknown physics operating in the very early universe, including an electroweak phase transition. This Nordita program will bring scientists together to engage in an effort to characterize and detect sources contributing to the gravitational wave background from the early universe, and the implications for new physics at the TeV scale and beyond.
Identifiant de l'évènement:
1149484

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AIP Conference Proceedings

Dernière mise jour: 14 Décembre 2018