Zobrazeno 1 - 10
of 1 051
pro vyhledávání: '"Rösch F"'
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
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
Autor:
Rösch, F., Benke, P., Kadler, M., Ros, E., Ojha, R., Edwards, P. G., Eppel, F., Heßdörfer, J., Stevens, J.
The origin of high-energy cosmic neutrinos detected by the IceCube observatory is a hotly debated topic in astroparticle physics. There is growing evidence that some of these neutrinos can be associated with active galactic nuclei (AGN) and especiall
Externí odkaz:
http://arxiv.org/abs/2310.07468
Autor:
Heßdörfer, J., Kadler, M., Benke, P., Debbrecht, L., Eich, J., Eppel, F., Gokus, A., Hämmerich, S., Kirchner, D., Paraschos, G. F., Rösch, F., Schulga, W., Sinapius, J., Weber, P., Bach, U., Berge, D., Buson, S., Dorner, D., Edwards, P. G., Fromm, C. M., Giroletti, M., Hervet, O., Kappes, A., Koyama, S., Kraus, A., Krichbaum, T. P., Lindfors, E., Mannheim, K., Ojha, R., Pueschel, E., Ros, E., Schleicher, B., Sitarek, J., Wilms, J., Zacharias, M., Zensus, J. A.
We present recent results of 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, namely TeV blazars and neutrino-associated AGN. Our
Externí odkaz:
http://arxiv.org/abs/2309.14794
Autor:
Eppel, F., Kadler, M., Ros, E., Benke, P., Giroletti, M., Hessdoerfer, J., McBride, F., Roesch, F.
In recent years, evidence has accumulated that some high-energy cosmic neutrinos can be associated with blazars. The strongest evidence for an individual association was found in the case of the blazar TXS 0506+056 in 2017. In July 2019, another trac
Externí odkaz:
http://arxiv.org/abs/2308.04311
Autor:
Eppel, F., Kadler, M., Ros, E., Roesch, F., Hessdoerfer, J., Benke, P., Edwards, P. G., Fromm, C. M., Giroletti, M., Gokus, A., Gomez, J. L., Haemmerich, S., Kirchner, D., Kovalev, Y. Y., Krichbaum, T. P., Lister, M. L., Nanci, C., Ojha, R., Paraschos, G. F., Plavin, A., Readhead, A. C. S., Stevens, J., Weber, P.
In the past years, evidence has started piling up that some high-energy cosmic neutrinos can be associated with blazars in flaring states. On February 26, 2022, a new blazar-neutrino coincidence has been reported: the track-like neutrino event IC2202
Externí odkaz:
http://arxiv.org/abs/2301.13859
Autor:
Rösch, F., Kadler, M., Ros, E., Gurwell, M., Hovatta, T., Kreter, M., MacDonald, N. R., Readhead, A. C. S.
Determining the location of $\gamma$-ray emission in blazar jets is a challenging task. Pinpointing the exact location of $\gamma$-ray production within a relativistic jet can place strong constraints on our understanding of high-energy astrophysics
Externí odkaz:
http://arxiv.org/abs/2112.09252
Autor:
Kadler, M., Bach, U., Berge, D., Buson, S., Dorner, D., Edwards, P. G., Eppel, F., Giroletti, M., Gokus, A., Hervet, O., Heßdörfer, J., Koyama, S., Kraus, A., Krichbaum, T. P., Lindfors, E., Mannheim, K., de Menezes, R., Ojha, R., Paraschos, G. F., Pueschel, E., Rösch, F., Ros, E., Schleicher, B., Sinapius, J., Sitarek, J., Wilms, J., Zacharias, M.
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, namely TeV blazars and candidate neutrino-associated AGN. Thanks to
Externí odkaz:
http://arxiv.org/abs/2108.00383
Autor:
Angioni, R., Ros, E., Kadler, M., Ojha, R., Müller, C., Edwards, P. G., Burd, P. R., Carpenter, B., Dutka, M. S., Gulyaev, S., Hase, H., Horiuchi, S., Krauß, F., Lovell, J. E. J., Natusch, T., Phillips, C., Plötz, C., Quick, J. F. H., Rösch, F., Schulz, R., Stevens, J., Tzioumis, A. K., Weston, S., Wilms, J., Zensus, J. A.
Publikováno v:
A&A 641, A152 (2020)
Following our study of the radio and high-energy properties of $\gamma$-ray-emitting radio galaxies, here we investigate the kinematic and spectral properties of the parsec-scale jets of radio galaxies that have not yet been detected by Fermi-LAT. We
Externí odkaz:
http://arxiv.org/abs/2007.10474