Publications (29)
Approaching hell's kitchen: Molecular daredevil clouds in the vicinity of Sgr A*
Lydia Moser, Ãlvaro Sánchez-Monge, Andreas Eckart +9
We report serendipitous detections of line emission with the Atacama Large Millimeter/submillimeter Array (ALMA) in band 3, 6, and 7 in the central parsec down to within 1" around…
Quantifying Uncertainty in FMEDA Safety Metrics: An Error Propagation Approach for Enhanced ASIC Verification
Antonino Armato, Christian Kehl, Sebastian Fischer
Accurate and reliable safety metrics are paramount for functional safety verification of ASICs in automotive systems. Traditional FMEDA (Failure Modes, Effects, and Diagnostic Anal…
The nuclear radio structure of X-ray bright AGN
Jens Zuther, Sebastian Fischer, Andreas Eckart
The physical nature of the X-ray/radio correlation of AGN is still an unsolved question. High angular resolution observations are necessary to disentangle the associated energy dyn…
Pay More Attention - Neural Architectures for Question-Answering
Zia Hasan, Sebastian Fischer
Machine comprehension is a representative task of natural language understanding. Typically, we are given context paragraph and the objective is to answer a question that depends o…
Ab Initio No Core Shell Model - Recent Results and Further Prospects
James P. Vary, Pieter Maris, Hugh Potter +14
There has been significant recent progress in solving the long-standing problems of how nuclear shell structure and collective motion emerge from underlying microscopic inter-nucle…
Sound Absorption and Dispersion in Dilute Polyatomic Gases: A Generalized Kinetic Approach
Sebastian Fischer, Wilson Marques
A generalized kinetic model equation which takes into account the frequency depence of the thermal conductivity is used to analyze the problem of sound propagation in dilute polyat…
On the shape of barchan dunes
Klaus Kroy, Sebastian Fischer, Benedikt Obermayer
Barchans are crescent-shaped sand dunes forming in aride regions with unidirectional wind and limited sand supply. We report analytical and numerical results for dune shapes under…
Compact radio emission from z~0.2 X-ray bright AGN
Jens Zuther, Sebastian Fischer, Andreas Eckart
Radio and X-ray emission of AGN appears to be correlated. The details of the underlying physical processes, however, are still not fully understood, i.e., to what extent is the X-r…
Hands vs. Controllers: Comparing User Interactions in Virtual Reality Shopping Environments
Francesco Vona, Julia Schorlemmer, Jessica Stemann +2
Virtual reality enables users to experience real-life situations in immersive environments. Interaction methods significantly shape user experience, particularly in high fidelity s…
Constructing Confidence Intervals for 'the' Generalization Error -- a Comprehensive Benchmark Study
Hannah Schulz-Kümpel, Sebastian Fischer, Roman Hornung +3
When assessing the quality of prediction models in machine learning, confidence intervals (CIs) for the generalization error, which measures predictive performance, are a crucial t…
A low-luminosity type-1 QSO sample: IV. Molecular gas contents and conditions of star formation in three nearby Seyfert galaxies
Lydia Moser, Melanie Krips, Gerold Busch +8
We present a pilot study of ~ 3" resolution observations of low CO transitions with the Submillimeter Array in three nearby Seyfert galaxies, which are part of the low-luminosity q…
A low-luminosity type-1 QSO sample. V. Overluminous host spheroids and their excitation mechanisms
Gerold Busch, Nastaran Fazeli, Andreas Eckart +6
We present near-infrared (NIR) -band longslit spectra of eleven galaxies which are obtained with SOFI at the NTT (ESO). The galaxies are chosen from the low-luminosity type-1…
Probing the physics of narrow-line regions of Seyfert galaxies I: The case of NGC 5427
Michael A. Dopita, Julia Scharwaechter, Prajval Shastri +10
We have used the Wide Field Spectrograph (WiFeS) on the ANU 2.3m telescope at Siding Spring to observe the nearby, nearly face-on, Seyfert 2 galaxy, NGC 5427. We have obtained inte…
The central kpc of edge-on AGN
Semir SmajiÄ, Sebastian Fischer, Jenz Zuther +2
The NIR is less influenced by dust extinction than optical light. This enables us to look to an extent through dusty regions. In addition, it is sensitive to the mass-dominating st…
Monitoring of tritium purity during long-term circulation in the KATRIN test experiment LOOPINO using laser Raman spectroscopy
Sebastian Fischer, Michael Sturm, Magnus Schlösser +5
The gas circulation loop LOOPINO has been set up and commissioned at Tritium Laboratory Karlsruhe (TLK) to perform Raman measurements of circulating tritium mixtures under conditio…
ALMA backed NIR high resolution integral field spectroscopy of the NUGA galaxy NGC 1433
Semir Smajic, Lydia Moser, Andreas Eckart +7
We present the results of near-infrared (NIR) H- and K-band European Southern Observatory SINFONI integral field spectroscopy (IFS) of the Seyfert 2 galaxy NGC 1433. We present emi…
The Mid-Infrared Instrument for the James Webb Space Telescope, X. Operations and Data Reduction
Karl D. Gordon, C. H. Chen, Rachel E. Anderson +26
We describe the operations concept and data reduction plan for the Mid- Infrared Instrument (MIRI) for the James Webb Space Telescope (JWST). The overall JWST operations concept is…
Salt-Induced Counterion-Mobility Anomaly in Polyelectrolyte Electrophoresis
Sebastian Fischer, Ali Naji, Roland R. Netz
We study the electrokinetics of a single polyelectrolyte chain in salt solution using hydrodynamic simulations. The salt-dependent chain mobility compares well with experimental DN…
Go-Smart: Open-Ended, Web-Based Modelling of Minimally Invasive Cancer Treatments via a Clinical Domain Approach
Phil Weir, Roland Ellerweg, Stephen Payne +16
Clinicians benefit from online treatment planning systems, through off-site accessibility, data sharing and professional interaction. As well as enhancing clinical value, incorpora…
GPTopic: Dynamic and Interactive Topic Representations
Arik Reuter, Bishnu Khadka, Anton Thielmann +3
Topic modeling seems to be almost synonymous with generating lists of top words to represent topics within large text corpora. However, deducing a topic from such list of individua…
What produces the extended LINER-type emission in the NUGA galaxy NGC 5850?
Marcus Bremer, Julia Scharwächter, Andreas Eckart +5
(Abridged) The role of low ionization nuclear emission region (LINER) galaxies within the picture of active galactic nuclei (AGN) has been controversial. It is still not clear whet…
A low-luminosity type-1 QSO sample: I. Overluminous host spheroidals or undermassive black holes?
Gerold Busch, Jens Zuther, Mónica Valencia-S. +6
Recognizing the properties of the host galaxies of quasi-stellar objects (QSOs) is essential to understand the suspected coevolution of central supermassive black holes (BHs) and t…
An Integrated Failure and Threat Mode and Effect Analysis (FTMEA) Framework with Quantified Cross-Domain Correlation Factors for Automotive Semiconductors
Antonino Armato, Marzana Khatun, Sebastian Fischer
The automotive industry faces increasing challenges in ensuring both functional safety (FuSa) and cybersecurity for complex semiconductor devices. Traditional Failure Mode and Effe…
BENN: Bias Estimation Using Deep Neural Network
Amit Giloni, Edita Grolman, Tanja Hagemann +4
The need to detect bias in machine learning (ML) models has led to the development of multiple bias detection methods, yet utilizing them is challenging since each method: i) explo…
Optimizing Prognostic Biomarker Discovery in Pancreatic Cancer Through Hybrid Ensemble Feature Selection and Multi-Omics Data
John Zobolas, Anne-Marie George, Alberto López +3
Prediction of patient survival using high-dimensional multi-omics data requires systematic feature selection methods that ensure predictive performance, sparsity, and reliability f…
Molecular gas in the immediate vicinity of Sgr A* seen with ALMA
Lydia Moser, Ãlvaro Sánchez-Monge, Andreas Eckart +9
We report serendipitous detections of line emission with ALMA in band 3, 6, and 7 in the central parsec of the Galactic center at an up to now highest resolution (<0.7''). Among th…
mlr3torch: A Deep Learning Framework in R based on mlr3 and torch
Sebastian Fischer, Lukas Burk, Carson Zhang +2
Deep learning (DL) has become a cornerstone of modern machine learning (ML) praxis. We introduce the R package mlr3torch, which is an extensible DL framework for the mlr3 ecosystem…
A low-redshift low luminosity QSO sample: Comparison with NUGA galaxies and PG QSOs and first interferometric images of three sample members
Lydia Moser, Jens Zuther, Sebastian Fischer +5
The low luminosity QSO (LLQSO) sample consists of type 1 active galactic nuclei (AGN) up to a redshift of z=0.06 in the Hamburg/ESO QSO survey. Its purpose is to study how the brig…
Comparing User Behavior in Real vs. Virtual Supermarket Shelves: An Eye-Tracking Study Using Tobii 3 Pro and Meta Quest Pro
Francesco Vona, Julia Schorlemmer, Paulina Kaulard +3
This study compares user behavior between real and virtual supermarket shelves using eye tracking technology to assess behavior in both environments. A sample of 29 participants wa…