FRANCI 2023

Friday 13 Oct 2023, 09:00 → 18:30 Europe/Berlin

Würzburg

Ainara Saiz Pérez (Julius-Maximilians-Universität Würzburg), Andreas Zmija (ECAP), Hrishikesh Shetgaonkar, Martin Schneider (ECAP, FAU)

Welcome to FRANCI 2023!

FRANCI 2023 will take place in Würzburg on 13 October 2023 and is free of charge.

The first presentations will start at 10 am, please arrive a bit in advance so that we don't catch delays in starting the event.

Looking forward to seeing lots of you in Würzburg,
The FRANCI committee!

FRANCI_2023_GroupPhoto.jpeg

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Registration

Registration on the 1st floor of the venue

Conveners: Ainara Saiz Pérez (Julius-Maximilians-Universität Würzburg), Andreas Zmija (ECAP), Hrishikesh Shetgaonkar, Maximilian Lorenz, Saurabh Mittal (JMU Würzburg)

Welcome by Committee

Welcome and brief orientation

Conveners: Ainara Saiz Pérez (Julius-Maximilians-Universität Würzburg), Andreas Zmija (ECAP), Hrishikesh Shetgaonkar, Maximilian Lorenz, Saurabh Mittal (JMU Würzburg)

1 Welcome Address

History of Astronomy in Franconia

Speaker: Prof. Dr. Karl Mannheim (JMU Würzburg)

2 Activities in laboratory astrophysics @ECAP

Speaker: Stephan Schreiner (ECAP, Erlangen)

3 Phase Camera for the Einstein Telescope

Speaker: Benjamin Schwab (ECAP)

4 Morphology on the sphere with Minkowski Tensors

Speaker: Caroline Collischon (Bamberg Observatory)

5 Strongly magnetised accreting neutron stars - advances in observations and modelling

Speaker: Ekaterina Sokolova-Lapa (Bamberg Observatory)

6 Modeling relativistic reflection for an extended corona geometry

Speaker: Alexey Nekrasov (Bamberg Observatory)

11:30 Lunch Break @ Hubland Mensataria

Mensateria North Campus
12, Emil-Hilb-Weg, 97074 Würzburg
https://maps.app.goo.gl/j4ZESxyZSKKG55ro6

7 Numerical simulations of accreting black holes and relativistic jets

Relativistic jets are among the most powerful phenomena in the Universe. They are launched from rotating supermassive black holes and propagate collimated over thousands of light years while accelerating particles to the highest energies. In order to shield light on the formation, propagation and emission processes of relativistic jets we perform general and special relativistic magneto-hydrodynamical (G[S]RMHD) simulations taking into account radiation microphysics as well as emission processes across the electromagnetic spectrum. In the talk we will provide current updates on the numerical methods and their applications to observations.

Speaker: Ainara Saiz Pérez (Julius-Maximilians-Universität Würzburg)

8 Calculating shock acceleration as a subgrid model for particle acceleration in MHD jets

Speaker: Patrick Günther (Julius-Maximilians-Universität Würzburg)

9 VLBI studies of relativistic jets in active galactic nuclei

Very long baseline interferometry (VLBI) observations enable us to study the parsec-scale structure of active galactic nuclei (AGN), and connect changes in jet brightness and morphology to the multiwavelength variability exhibited by these sources. In this talk, I will focus on our work related to the investigation of the connection between the radio and gamma-ray variability. I will discuss our VLBI studies of a gamma-ray flaring blazar from the early Universe, as well as AGN monitoring programmes aimed at studying high-energy detected sources and strong neutrino associations.

Speaker: Petra Benke (Julius-Maximilians-Universität Würzburg)

10 Multi-messenger astronomy with blazars

Speaker: Leonard Pfeiffer

11 News from the IceCube group

Speaker: Martin Rongen (ECAP)

14:15 Coffee Break with Poster Session

12 Optical Intensity Interferometry with H.E.S.S.

Intensity interferometry is a technique similar to conventional amplitude interferometry, except that it is insensitive
to atmospheric turbulence and that it does not require good optical quality of the telescope system. Therefore arrays of Imaging Atmospheric Cherenkov Telescopes can be (and since a few years are) used to measure the angular sizes of stars and star systems. We report from the first two Intensity Interferometry campaigns at the H.E.S.S. gamma ray observatory in 2022 and 2023.

Speaker: Andreas Zmija (ECAP)

2023-10-13_Zmija_II_FRANCI.pdf

13 First Study of the SNR Population in the LMC with eROSITA

Speaker: Federico Zangrandi (Bamberg Observatory)

14 MeV Gamma-Ray Observations

Soft gamma-ray observations are key to understanding the astrophysics of high-energy phenomena including accreting black holes, stellar flares, matter-antimatter annihilations, cosmic rays, and dark matter, among others. In this talk, I will give an overview on how these measurements are performed, the next generation MeV telescope, COSI, and projects in my group related to nucleosynthesis, the cosmic gamma-ray background, and ideas to overcome the MeV sensitivity gap with new instruments concepts.

Speaker: Dr Thomas Siegert (Julius-Maximilians-Universität Würzburg)

15 GNN based Gamma/Hadron Separation with SWGO

Speaker: Martin Schneider (ECAP, FAU)

SWGO_GNNs_Martin_Schneider_FRANCI.pdf

16 Giant outburst of EXO 2030+375: Spectral and pulse profile evolution

Speaker: Philipp Thalhammer (Bamberg Observatory)

Group Photo and Closing Remarks

Conveners: Ainara Saiz Pérez (Julius-Maximilians-Universität Würzburg), Andreas Zmija (ECAP), Maximilian Lorenz, Saurabh Mittal (JMU Würzburg)

16:30 Break

Dinner @ Restaurant Hubland

Restaurant HUBLAND
Zeppelinstraße 118, 97074 Würzburg
https://maps.app.goo.gl/ABhHPmqT4CgxiunQ7