Zobrazeno 1 - 10
of 13 805
pro vyhledávání: '"Roesch A"'
Autor:
Polushko, Vladyslav, Jenal, Alexander, Bongartz, Jens, Weber, Immanuel, Hatic, Damjan, Rösch, Ronald, März, Thomas, Rauhut, Markus, Weinmann, Andreas
Floods are an increasingly common global threat, causing emergencies and severe damage to infrastructure. During crises, organisations such as the World Food Programme use remotely sensed imagery, typically obtained through drones, for rapid situatio
Externí odkaz:
http://arxiv.org/abs/2407.05007
Autor:
Gokus, Andrea, Böttcher, Markus, Errando, Manel, Kreter, Michael, Heßdörfer, Jonas, Eppel, Florian, Kadler, Matthias, Smith, Paul S., Benke, Petra, Gurvits, Leonid I., Kraus, Alex, Lisakov, Mikhail, McBride, Felicia, Ros, Eduardo, Rösch, Florian, Wilms, Jörn
Blazars can be detected from very large distances due to their high luminosity. However, the detection of $\gamma$-ray emission of blazars beyond $z=3$ has only been confirmed for a small number of sources. Such observations probe the growth of super
Externí odkaz:
http://arxiv.org/abs/2406.07635
Autor:
Benke, P., Gokus, A., Lisakov, M., Gurvits, L. I., Eppel, F., Heßdörfer, J., Kadler, M., Kovalev, Y. Y., Ros, E., Rösch, F.
Publikováno v:
A&A 689, A43 (2024)
High-redshift blazars provide valuable input to studies of the evolution of active galactic nuclei (AGN) jets and provide constraints on cosmological models. Detections at high energies ($0.1<\mathrm{E}<100$ GeV) of these distant sources are rare, bu
Externí odkaz:
http://arxiv.org/abs/2406.03135
Autor:
Paraschos, G. F., Wielgus, M., Benke, P., Mpisketzis, V., Rösch, F., Dasyra, K., Ros, E., Kadler, M., Ojha, R., Edwards, P. G., Hyland, L., Quick, J. F. H., Weston, S.
Publikováno v:
A&A 687, L6 (2024)
Radio galaxies harbouring jetted active galactic nuclei are a frequent target of very-long-baseline interferometry (VLBI) because they play an essential role in exploring how jets form and propagate. Hence, only few have not been detected with VLBI y
Externí odkaz:
http://arxiv.org/abs/2406.02660
The article examines a linear-quadratic Neumann control problem that is governed by a non-coercive elliptic equation. Due to the non-self-adjoint nature of the linear control-to-state operator, it is necessary to independently study both the state an
Externí odkaz:
http://arxiv.org/abs/2403.12551
Validating robotic systems in safety-critical appli-cations requires testing in many scenarios including rare edgecases that are unlikely to occur, requiring to complement real-world testing with testing in simulation. Generative models canbe used to
Externí odkaz:
http://arxiv.org/abs/2403.11728
Current multimodal models leveraging contrastive learning often face limitations in developing fine-grained conceptual understanding. This is due to random negative samples during pretraining, causing almost exclusively very dissimilar concepts to be
Externí odkaz:
http://arxiv.org/abs/2403.02875
We study a control problem governed by a semilinear parabolic equation with pointwise control and state constraints imposed at every point of the space-time cylinder. We obtain second order sufficient optimality conditions for local optimality in the
Externí odkaz:
http://arxiv.org/abs/2401.17621
In this paper we study a one parameter family of rational maps obtained by applying the Chebyshev-Halley root finding algorithms. We show that the dynamics near parameters where the family presents some degeneracy might be understood from the point o
Externí odkaz:
http://arxiv.org/abs/2401.12374
Autor:
Eppel, F., Kadler, M., Heßdörfer, J., Benke, P., Debbrecht, L., Eich, J., Gokus, A., Hämmerich, S., Kirchner, D., Paraschos, G. F., Rösch, F., Schulga, W., Sinapius, J., Weber, P., Bach, U., Dorner, D., Edwards, P. G., Giroletti, M., Kraus, A., Hervet, O., Koyama, S., Krichbaum, T. P., Mannheim, K., Ros, E., Zacharias, M., Zensus, J. A.
Aims. We introduce the TELAMON program which is using the Effelsberg 100-m telescope to monitor the radio spectra of active galactic nuclei (AGN) under scrutiny in astroparticle physics, specifically TeV blazars and candidate neutrino-associated AGN.
Externí odkaz:
http://arxiv.org/abs/2401.06296