Zobrazeno 1 - 10
of 2 404
pro vyhledávání: '"Volkmer P"'
Autor:
Cohl, Howard S., Volkmer, Hans
In the $q^{-1}$-symmetric Askey scheme, namely the $q^{-1}$-Askey--Wilson, continuous dual $q^{-1}$-Hahn, $q^{-1}$-Al-Salam--Chihara, continuous big $q^{-1}$-Hermite and continuous $q^{-1}$-Hermite polynomials, we compute bilateral discrete and conti
Externí odkaz:
http://arxiv.org/abs/2410.00246
Autor:
Jafarzadeh, S., Schiavo, L. A. C., Fedun, V., Solanki, S. K., Stangalini, M., Calchetti, D., Verth, G., Jess, D. B., Grant, S. D. T., Ballai, I., Gafeira, R., Keys, P. H., Fleck, B., Morton, R. J., Browning, P. K., Silva, S. A., Appourchaux, T., Gandorfer, A., Gizon, L., Hirzberger, J., Kahil, F., Suárez, D. Orozco, Schou, J., Strecker, H., Iniesta, J. C. del Toro, Valori, G., Volkmer, R., Woch, J.
Publikováno v:
A&A 688, A2 (2024)
Solar pores are intense concentrations of magnetic flux that emerge through the Sun's photosphere. When compared to sunspots, they are much smaller in diameter and hence can be impacted and buffeted by neighbouring granular activity to generate signi
Externí odkaz:
http://arxiv.org/abs/2404.18717
Autor:
Volkmer, Hans
Publikováno v:
SIGMA 20 (2024), 067, 21 pages
The Laplace-Beltrami operator on (the surface of) a triaxial ellipsoid admits a sequence of real eigenvalues diverging to plus infinity. By introducing ellipsoidal coordinates, this eigenvalue problem for a partial differential operator is reduced to
Externí odkaz:
http://arxiv.org/abs/2312.01620
Autor:
Yeo, K. L., Krivova, N. A., Solanki, S. K., Hirzberger, J., Suárez, D. Orozco, Albert, K., Jorge, N. Albelo, Appourchaux, T., Alvarez-Herrero, A., Rodríguez, J. Blanco, Gandorfer, A., Gutierrez-Marques, P., Kahil, F., Kolleck, M., Iniesta, J. C. del Toro, Volkmer, R., Woch, J., Fiethe, B., Pérez-Grande, I., Kilders, E. Sanchis, Jiménez, M. Balaguer, Rubio, L. R. Bellot, Calchetti, D., Carmona, M., Feller, A., Fernandez-Rico, G., Fernández-Medina, A., Parejo, P. García, Blesa, J. L. Gasent, Gizon, L., Grauf, B., Heerlein, K., Korpi-Lagg, A., Maue, T., Meller, R., Vacas, A. Moreno, Müller, R., Nakai, E., Schmidt, W., Schou, J., Sinjan, J., Staub, J., Strecker, H., Torralbo, I., Valori, G.
Publikováno v:
A&A 679, A25 (2023)
Solar irradiance variability has been monitored almost exclusively from the Earth's perspective. {We present a method to combine the unprecedented observations of the photospheric magnetic field and continuum intensity from outside the Sun-Earth line
Externí odkaz:
http://arxiv.org/abs/2309.16355
Autor:
Nölke, J. D., Solanki, S. K., Hirzberger, J., Peter, H., Chitta, L. P., Kahil, F., Valori, G., Wiegelmann, T., Suárez, D. Orozco, Albert, K., Jorge, N. Albelo, Appourchaux, T., Alvarez-Herrero, A., Rodríguez, J. Blanco, Gandorfer, A., Germerott, D., Guerrero, L., Gutierrez-Marques, P., Kolleck, M., Iniesta, J. C. del Toro, Volkmer, R., Woch, J., Fiethe, B., Cama, J. M. Gómez, Pérez-Grande, I., Kilders, E. Sanchis, Jiménez, M. Balaguer, Rubio, L. R. Bellot, Calchetti, D., Carmona, M., Deutsch, W., Feller, A., Fernandez-Rico, G., Fernández-Medina, A., Parejo, P. García, Blesa, J. L. Gasent, Gizon, L., Grauf, B., Heerlein, K., Korpi-Lagg, A., Lange, T., Jiménez, A. López, Maue, T., Meller, R., Vacas, A. Moreno, Müller, R., Nakai, E., Schmidt, W., Schou, J., Schühle, U., Sinjan, J., Staub, J., Strecker, H., Torralbo, I., Berghmans, D., Kraaikamp, E., Rodriguez, L., Verbeeck, C., Zhukov, A. N., Auchere, F., Buchlin, E., Parenti, S., Janvier, M., Barczynski, K., Harra, L., Schwanitz, C., Cuadrado, R. Aznar, Mandal, S., Teriaca, L., Long, D., Smith, P.
Publikováno v:
A&A 678, A196 (2023)
Extreme ultraviolet (EUV) observations of the quiet solar atmosphere reveal extended regions of weak emission compared to the ambient quiescent corona. The magnetic nature of these coronal features is not well understood. We study the magnetic proper
Externí odkaz:
http://arxiv.org/abs/2309.09789
Autor:
Albert, K., Krivova, N. A., Hirzberger, J., Solanki, S. K., Vacas, A. Moreno, Suárez, D. Orozco, Jorge, N. Albelo, Appourchaux, T., Alvarez-Herrero, A., Rodríguez, J. Blanco, Gandorfer, A., Gutierrez-Marques, P., Kahil, F., Kolleck, M., Volkmer, R., Iniesta, J. C. del Toro, Woch, J., Fiethe, B., Pérez-Grande, I., Kilders, E. Sanchis, Jiménez, M. Balaguer, Rubio, L. R. Bellot, Calchetti, D., Carmona, M., Feller, A., Fernandez-Rico, G., Fernández-Medina, A., Parejo, P. García, Blesa, J. L. Gasent, Gizon, L., Grauf, B., Heerlein, K., Korpi-Lagg, A., Lange, T., Jiménez, A. López, Maue, T., Meller, R., Müller, R., Nakai, E., Schmidt, W., Schou, J., Sinjan, J., Staub, J., Strecker, H., Torralbo, I., Valori, G.
Publikováno v:
A&A 678, A163 (2023)
The brightness of faculae and network depends on the angle at which they are observed and the magnetic flux density. Close to the limb, assessment of this relationship has until now been hindered by the increasingly lower signal in magnetograms. This
Externí odkaz:
http://arxiv.org/abs/2309.01474
Autor:
Chitta, L. P., Solanki, S. K., Iniesta, J. C. del Toro, Woch, J., Calchetti, D., Gandorfer, A., Hirzberger, J., Kahil, F., Valori, G., Suárez, D. Orozco, Strecker, H., Appourchaux, T., Volkmer, R., Peter, H., Mandal, S., Cuadrado, R. Aznar, Teriaca, L., Schühle, U., Berghmans, D., Verbeeck, C., Zhukov, A. N., Priest, E. R.
Publikováno v:
ApJL 956, L1 (2023)
Arch-like loop structures filled with million Kelvin hot plasma form the building blocks of the quiet-Sun corona. Both high-resolution observations and magnetoconvection simulations show the ubiquitous presence of magnetic fields on the solar surface
Externí odkaz:
http://arxiv.org/abs/2308.10982
Autor:
Jeanne Gallée, Jade Cartwright, Stephanie Grasso, Regina Jokel, Monica Lavoie, Ellen McGowan, Margaret Pozzebon, Bárbara Costa Beber, Guillaume Duboisdindien, Núria Montagut, Monica Norvik, Taiki Sugimoto, Rosemary Townsend, Nina Unger, Ingvild E. Winsnes, Anna Volkmer
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract Speech-language therapists/pathologists (SLT/Ps) are key professionals in the management and treatment of primary progressive aphasia (PPA), however, there are gaps in education and training within the discipline, with implications for skill
Externí odkaz:
https://doaj.org/article/811a3b470dca4342950e99f10a96c0b6
Autor:
M. Wendisch, S. Crewell, A. Ehrlich, A. Herber, B. Kirbus, C. Lüpkes, M. Mech, S. J. Abel, E. F. Akansu, F. Ament, C. Aubry, S. Becker, S. Borrmann, H. Bozem, M. Brückner, H.-C. Clemen, S. Dahlke, G. Dekoutsidis, J. Delanoë, E. De La Torre Castro, H. Dorff, R. Dupuy, O. Eppers, F. Ewald, G. George, I. V. Gorodetskaya, S. Grawe, S. Groß, J. Hartmann, S. Henning, L. Hirsch, E. Jäkel, P. Joppe, O. Jourdan, Z. Jurányi, M. Karalis, M. Kellermann, M. Klingebiel, M. Lonardi, J. Lucke, A. E. Luebke, M. Maahn, N. Maherndl, M. Maturilli, B. Mayer, J. Mayer, S. Mertes, J. Michaelis, M. Michalkov, G. Mioche, M. Moser, H. Müller, R. Neggers, D. Ori, D. Paul, F. M. Paulus, C. Pilz, F. Pithan, M. Pöhlker, V. Pörtge, M. Ringel, N. Risse, G. C. Roberts, S. Rosenburg, J. Röttenbacher, J. Rückert, M. Schäfer, J. Schaefer, V. Schemann, I. Schirmacher, J. Schmidt, S. Schmidt, J. Schneider, S. Schnitt, A. Schwarz, H. Siebert, H. Sodemann, T. Sperzel, G. Spreen, B. Stevens, F. Stratmann, G. Svensson, C. Tatzelt, T. Tuch, T. Vihma, C. Voigt, L. Volkmer, A. Walbröl, A. Weber, B. Wehner, B. Wetzel, M. Wirth, T. Zinner
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8865-8892 (2024)
Global warming is amplified in the Arctic. However, numerical models struggle to represent key processes that determine Arctic weather and climate. To collect data that help to constrain the models, the HALO–(𝒜𝒞)3 aircraft campaign was conduc
Externí odkaz:
https://doaj.org/article/bca9d009d9254c2ea20e8a7af06088e2
Autor:
Valori, G., Calchetti, D., Vacas, A. Moreno, Pariat, É., Solanki, S. K., Löschl, P., Hirzberger, J., Parenti, S., Albert, K., Jorge, N. Albelo, Álvarez-Herrero, A., Appourchaux, T., Rubio, L. R. Bellot, Rodríguez, J. Blanco, Campos-Jara, A., Feller, A., Gandorfer, A., Parejo, P. García, Germerott, D., Gizon, L., Cama, J. M. Gómez, Guerrero, L., Gutierrez-Marques, P., Kahil, F., Kolleck, M., Korpi-Lagg, A., Suárez, D. Orozco, Pérez-Grande, I., Kilders, E. Sanchis, Schou, J., Schühle, U., Sinjan, J., Staub, J., Strecker, H., Iniesta, J. C. del Toro, Volkmer, R., Woch, J.
Publikováno v:
A&A 677, A25 (2023)
Spectropolarimetric reconstructions of the photospheric vector magnetic field are intrinsically limited by the 180$^\circ$-ambiguity in the orientation of the transverse component. So far, the removal of such an ambiguity has required assumptions abo
Externí odkaz:
http://arxiv.org/abs/2307.09907