Bi-weekly discussion group on topics in heliophysics and astroinformatics.
The topic to be discussed will be announced here a few days in advance.
Interested in joining us? Welcome!
at the Institute for Data Science.
Yes, many of us were still here at this time 👍🏽
Let’s see if there is interest for a virtual version.
A tradition we inherited from the Berkeley Space Sciences Lab.
Everybody is welcome!
🍻 🥛 🍵 🍺 🍎
Knowledge Exchange Platform
Bi-weekly seminar for sharing our fields of expertise among the three computer science institutes of FHNW.
Everybody is welcome!
STIX – voyage to the sun
22.Jan. – 28.Feb. 2020 Lichtistallation auf dem Campusplatz Windisch
anlässlich des Starts der Raumsonde Solar Orbiter
Künstler: Stephan Athanas und Michael Omlin
Wir bedanken uns bei den folgenden Institutionen für die Unterstützung
More events related to the launch of Solar Orbiter
Journal Club STIX-Special
FHNW Institute for Data Science
Conferences and Meetings
Current developments in Switzerland: fundamental solar physics, solar variability, Sun-Earth relations in proxies, observations, and model simulations, future (space) missions/observations.
More than 80 participants from the SKA organization, government agencies, universities and the Swiss industry participated at the 3rd Swiss SKA Days organized by EPFL and I4DS at the FHNW Brugg-Windisch Campus.
Knowledge Exchange Platform KEP
KEP is a bi-weekly seminar for sharing our fields of expertise at the Institute for Data Science. Find below a list of the talks related to astroinformatics and heliophysics.
2019 June 13, Jonas Schwammberger about about Distributed Image Reconstruction for Radio Interferometers
2019 May 23, Brandon Panos about Clustering Flares in the NFP75 project IRIS Big Data
Special Seminars with External Speakers
2019 July 5, Surajit Mondal, National Centre for Radio Astrophysics (NCRA), Pune, India: Investigating the two extremes of solar activity using data from the Murchison Widefield Array
The solar activity is of two types: one when the sun is very active and gives rise to many flares and coronal mass ejections (CMEs) and other when the sun is very quiet and there is no X-ray flare for several days. Using data from the MWA, we have investigated a CME event and a quiet sun. We have been able to detect gyro-synchrotron emission from the CME and have successfully modelled the emission. Using the model, we have estimated different plasma parameters in a spatially resolved manner at different times. In this talk, I will discuss the details of the fitting procedure and how we succeeded in detecting the emission even after 2 hours after the initial eruption and at a height of ~4.7 solar radius. In the second part of my talk, I will focus on the coronal heating problem. I will give the first direct and robust observational evidence, to the best of our knowledge, that Hudson’s criterion is satisfied even in the case of quiet sun. Several other predictions of the nanoflare hypothesis are also found to be valid in this case. All these works have been possible with the automated high dynamic range imaging routine we have developed. I will also talk about this briefly. If time permits I will also briefly discuss the various other works which are happening in our group.
Journal Club 2020
April 7, Solar Flare Distributions: Lognormal Instead of Power Law?
March 24, Extreme Ultraviolet Observations and Analysis of Micro-Eruptions and their associated Coronal Waves
March 10, Hard X-Ray Observations of a Jet and Accelerated Electrons in the Corona
February 11, Observations of Jetlet-like Events at Edges of Solar Magnetic Network Lanes
January 28, STIX instrument paper
January 14, Dark Jets in Solar Coronal Holes
See papers discussed before 2020
December 17, Probing the energetic particle environment near the Sun November 19, Characterizing Upward Lightning With and Without a Terrestrial Gamma Ray Flash November 5, Search window of solar flare neutrinos October 22, A basal contribution from p-modes to the Alfvénic wave flux in the Sun’s corona October 8, Localized Microwave and EUV Bright Structures in an Eruptive Prominence September 10, Visualizing Data using t-SNE August 27, What Determines the X-Ray Intensity and Duration of a Solar Flare? August 13, Triggering the Birth of New Cycle’s sunspots by solar tsunami July 30, The development of lower-atmosphere turbulence early in a solar flare July 16, Constraints on energy release in solar flares from RHESSI and GOES X-ray observations July 2, Gamma ray emission from a behind-the-limb-flare June 18, Predicting solar flares using machine learning June 4, On the Relative Brightness of Coronal Holes at Low Frequencies May 21, Propagation of Interplanetary Coronal Mass Ejections: The Drag-Based Model May 4, Determination of the Total Accelerated Electron Rate and Power Using Solar Flare Hard X-Ray Spectra April 7, Determination of the Total Accelerated Electron Rate and Power Using Solar Flare Hard X-Ray Spectra April 2, Three-dimensional reconstruction of CME-driven shock-streamer interaction from radio and EUV observations March 26, Micro Flares and their HXR and Microwave Emissions February 12, Mapping the magnetic field of flare coronal loops February 26, The Formation of IRIS Diagnostics February 12, Frequency rising sub-THz emission from solar flare ribbons January 29, Statistical Study of Chromospheric Evaporation in Impulsive Phase of Solar Flares January 15, Solar Physics with the Square Kilometer Array
December 18, Life Versus Dark Energy: How An Advanced Civilization Could Resist the Accelerating Expansion of the Universe December 4, Finding Flares in Kepler Data Using Machine-Learning Tools November 20, Topological model of the anemone microflares in the solar chromosphere November 6, How Nanoflares Produce Kinetic Waves, Nano-Type III Radio Bursts, and Non-Thermal Electrons in the Solar Wind October 23, Electron Time-of-Flight Distances and Flare Loop Geometries Compared from CGRO and YOHKOH Observations October 9, Statistics of Coronal Dimmings Associated with Coronal Mass Ejections. I. Characteristic Dimming Properties and Flare Association September 25, Presentation by Rohit Sharma about his PHD work September 11, Noise-Storm Continua: Power Estimates for Electron Acceleration August 14, Presentation by Matej Kuhar about his PHD work August 7, Presentation by Säm Krucker about his recent work in Japan July 31, Continuum Enhancements in the Ultraviolet, the Visible and the Infrared during the X1 Flare on 2014 March 29 July 17, Radiative backwarming in white-light flares June 6, Global conditions in the solar corona from 2010 to 2017 May 22, Solar Flare Prediction Using SDO/HMI Vector Magnetic Field Data with a Machine-learning Algorithm May 8, Slipping Magnetic Reconnection during an X-class Solar Flare Observed by SDO/AIA April 24, About the first observations of solar flares: Carrington, Hodgeson March 27, Alfvénic waves with sufficient energy to power the quiet solar corona and fast solar wind March 13, PHOTOSPHERIC OBSERVATIONS OF SURFACE AND BODY MODES IN SOLAR MAGNETIC PORES
Talks & Public Engagement
2019 July 18, Vortrag und Virtual Reality-Erlebnis im Raumschiff: André Csillaghy stellte einer Männervereinigung die Sonnenforschung an der FHNW und das Röntgenteleskop STIX vor. Danach probierten alle die von FHNW-Studierenden entwickelte VR-App ‘Floating in Space’ aus.
2019 April 9, FHNW Technik Transfer Transparent: SMILE – Eine chinesisch-europäische Raumfahrtmission mit FHNW Beteiligung. Vortrag von Samuel Krucker (I4DS) und Matthias Fankhauser (IPPE) über das neue Projekt. Die Folien sind auf der SMILE-SXI-Projektseite zugänglich.
2019 March 2-3, Swiss Solar Activities at the Science Museum London: Explosiv oder ruhig? Die Schweizer Sonnenphysik a, ‘The Sun Family Festival’ mit einem interaktiven Stand um das am I4DS entwickelte App heliotime.org für helioviewer.org. Für die Schweizer Botschaft anlässlich der Sonderausstellung The Sun – Living with our Star
2019 February 14, Neubad Lecture Luzern: Schwarze Löcher: über untote Sterne, die ihre lebendigen Artgenossen essen, die Raumzeit krümmen und über die Rolle, die sie in unserer Galaxie und im Universum spielen, mit Cédric Huwyler
2018 November 28, Swiss Solar Activities at Science Museum London Lates: Explosiv oder ruhig? Die Schweizer Sonnenphysik an der Late Night mit einem interaktiven Stand um das am I4DS entwickelte App heliotime.org für helioviewer.org. Für die Schweizer Botschaft anlässlich der Sonderausstellung The Sun – Living with our Star
2018 November 22, Space Talks @EG-Bar: Die Geheimnisse des dunklen Universums und die ESA Mission Euclid, mit André Csillaghy
2018 November 1, Space Talks @EG-Bar: Weltraumwetter und die ESA Mission Solar Orbiter, mit Marina Battaglia
2018 October 30, Invited Talk @I4DS: Power Coders – the Coding Academy for Refugees
STEAM Activities and Workshops
2019 Summer, Workshops: Build your own telescope like the FHNW-pros of the X-ray telescope STIX
2019 March-April, Astronomiekurs für Kinder: Der geheime Schlüssel zum Universum
2018 October 9-12, Tüftelcamp
2018 April, July Ferienplausch
2019 April 22, Easter BBQ: The Institute for Interactive Technologies and the Institute for Data Science celebrated together!
2018 December 20, Holiday Party: The Institute for Interactive Technologies and the Institute for Data Science celebrated together!
2018 September 21, Celebration of the decommissionning of the RHESSI satellite