Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Eppel, 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:
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:
Kadler, M., Riechers, D. A., Agarwal, J., Baczko, A. -K., Beuther, H., Bigiel, F., Birnstiel, T., Boccardi, B., Bomans, D. J., Boogaard, L., Braun, T. T., Britzen, S., Brüggen, M., Brunthaler, A., Caselli, P., Elsässer, D., von Fellenberg, S., Flock, M., Fromm, C. M., Fuhrmann, L., Hartogh, P., Hoeft, M., Keenan, R. P., Kovalev, Y., Kreckel, K., Livingston, J., Lobanov, A. P., Müller, H., Ros, E., Schilke, P., De Simone, M., Spitler, L., Ueda, T., Vardoulaki, E., Vegetti, S., Weis, K., Wendel, C., Xu, M. H., Zhao, G. -Y., Albrecht, M., Basu, A., Tjus, J. Becker, Bernhart, S., Blum, J., Bonnassieux, E., Bredendiek, C., van Delden, M., Di Gennaro, G., Enders, A., Eppel, F., Hase, H., Hoang, D., Hugentobler, U., Kaasinen, M., Krupp, N., Kun, E., Laubach, M., Lin, Y., Mannheim, K., Menten, K. M., Perkuhn, R., Pohl, N., Powell, D. M., Rezzolla, L., Ricci, L., Schinnerer, E., Schmidt, K., Schöpfel, J., Stanko, S., Stein, M., Sulzenauer, N., Taziaux, S., Tursunov, A., Walter, F., Weiss, A., Witzel, G., Wolf, S., Zensus, J. A., Mus, A., Toth, L. V., Alberdi, A., Benisty, M., Cox, P., Guirado, J. C., Johnson, M. D., Juvela, M., Neeleman, M., Pashchenko, I. N., Torres, M. A. Pérez, Perraut, K., Zajacek, M.
The Next Generation Very Large Array (ngVLA) is a planned radio interferometer providing unprecedented sensitivity at wavelengths between 21 cm and 3 mm. Its 263 antenna element array will be spatially distributed across North America to enable both
Externí odkaz:
http://arxiv.org/abs/2311.10056
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:
Gokus, A., Kreikenbohm, A., Leiter, K., Bretz, T., Dauser, T., Dorner, D., Elsaesser, D., Eppel, F., Hessdoerfer, J., Kadler, M., Kraus, A., Kreter, M., Kreykenbohm, I., Langejahn, M., Mannheim, K., Thalhammer, P., Wilms, J., Arbet-Engels, A., Baack, D., Balbo, M., Biland, A., Buss, J., Eisenberger, L., Hildebrand, D., Iotov, R., Kalenski, A., Mitchell, A., Neise, D., Noethe, M., Paravac, A., Rhode, W., Schleicher, B., Sliusar, V., Walter, R.
The blazar Mrk 421 shows frequent, short flares in the TeV energy regime. Due to the fast nature of such episodes, we often fail to obtain sufficient simultaneous information about flux variations in several energy bands. To overcome this lack of mul
Externí odkaz:
http://arxiv.org/abs/2108.02085
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:
Eppel, F.1, Kadler, M.1, Ros, E.2, Rösch, F.1, Heßdörfer, J.1, Benke, P.2, Edwards, P. G.3, Fromm, C. M.1, Giroletti, M.4, Gokus, A.5, Gómez, J. L.6, Hämmerich, S.7, Kirchner, D.1, Kovalev, Y. Y.2,8, Krichbaum, T. P.2, Lister, M. L.9, Nanci, C.4, Ojha, R.10, Paraschos, G. F.2, Plavin, A.8
Publikováno v:
Proceedings of the International Astronomical Union. Dec2022, Vol. 17 Issue S375, p91-95. 5p.