Results 1 to 10 of about 201,230 (325)

Transverse component of the magnetic field in the solar photosphere observed by Sunrise [PDF]

, 2010
We present the first observations of the transverse component of photospheric magnetic field acquired by the imaging magnetograph Sunrise/IMaX. Using an automated detection method, we obtain statistical properties of 4536 features with significant linear
Barthol, P., Beeck, B., Berkefeld, T., Bonet, J. A., Danilovic, S., Domingo, V., Gandorfer, A., Iniesta, J. C. del Toro, Knoelker, M., Pietarila, A., Pillet, V. Martinez, Schmidt, W., Schuessler, M., Solanki, S. K., Title, A. M.   +14 more
core   +2 more sources

The Sunrise Mission [PDF]

, 2010
The first science flight of the balloon-borne \Sunrise telescope took place in June 2009 from ESRANGE (near Kiruna/Sweden) to Somerset Island in northern Canada.
A. Feller, A. Gandorfer, A. Gandorfer, A. Lecinski, A. López Jiménez, A. M. Title, A. Sanz-Andrés, A. Watt, A. Álvarez-Herrero, B. Chares, B. Grauf, B. W. Lites, C. Widani, D. Elmore, D. Germerott, D. Kampf, D.M. Rust, E. Schmidt, G. Card, G. Tomasch, I. Pérez-Grande, I. Pérez Grande, J. A. Bonet, J. C. del Toro Iniesta, J. Fox, J. Hirzberger, J. Hirzberger, J. L. Gasent Blesa, J.P. Mehltretter, K. Heerlein, K. Härtel, L. Sabau-Graziati, M. Herse, M. Knölker, M. Kolleck, M. Schwarzschild, M. Schüssler, P. Barthol, P. Haberler, P. Lemaire, P. Lemaire, P. Nelson, P.N. Bernasconi, P.N. Bernasconi, R. Meller, R. Müller, R. Summers, R.E. Danielson, S. K. Solanki, S.K. Solanki, T. Berkefeld, T. Berkefeld, T. Hirayama, T. L. Riethmüller, T. Levin, T.L. Riethmüller, V. Domingo, V. Martínez Pillet, V. Martínez Pillet, V.A. Krat, W. Curdt, W. Deutsch, W. Schmidt   +62 more
core   +4 more sources

Dispersive calculation of the massless multi-loop sunrise diagram [PDF]

, 2006
The massless sunrise diagram with an arbitrary number of loops is calculated in a simple but formal manner. The result is then verified by rigorous mathematical treatment. Pitfalls in the calculation with distributions are highlighted and explained.
A. Aste, A. Aste, A. Aste, A.I. Davydychev, Andreas Aste, F. Constantinescu, F.A. Berends, F.V. Tkachov, G. Källén, G. Passarino, G. Scharf, G. ’t Hooft, H. Epstein, J. Fleischer, J. Schwinger, K.G. Chetyrkin, M. Caffo, M. Dütsch, P. Post, R.F. Streater, S. Bauberger, S. Groote, S. Laporta, S. Laporta, T.-P. Cheng, W. Pauli   +25 more
core   +2 more sources

A formula for the number of days between the winter solstice and the latest sunrise [PDF]

, 2002
A simple closed-form expression for the number of days between the winter solstice and the latest sunrise is derived. Formulas for the summer solstice and the sunset are derived as well.
di Cicco D., Matthias Reinsch
core   +2 more sources

The analytic value of the sunrise self-mass with two equal masses and the external invariant equal to the third squared mass [PDF]

, 2002
We consider the two-loop self-mass sunrise amplitude with two equal masses $M$ and the external invariant equal to the square of the third mass $m$ in the usual $d$-continuous dimensional regularization.
Berends, Caffo, E. Remiddi, Laporta, Laporta, M. Argeri, P. Mastrolia, Remiddi, Vermaseren, Vermaseren   +9 more
core   +2 more sources

Detection of vortex tubes in solar granulation from observations with Sunrise [PDF]

, 2010
We have investigated a time series of continuum intensity maps and corresponding Dopplergrams of granulation in a very quiet solar region at the disk center, recorded with the Imaging Magnetograph eXperiment (IMaX) on board the balloon-borne solar ...
Barthol, P., Domingo, V., Franz, M., Gandorfer, A., Gonzalez, N. Bello, Iniesta, J. C. del Toro, Knolker, M., Navarro, J. A. Bonet, Nutto, Ch., Pillet, V. Martinez, Rezaei, R., Schmidt, W., Solanki, S. K., Steiner, O.   +13 more
core   +1 more source

BOKASUN: a fast and precise numerical program to calculate the Master Integrals of the two-loop sunrise diagrams [PDF]

, 2008
We present the program BOKASUN for fast and precise evaluation of the Master Integrals of the two-loop self-mass sunrise diagram for arbitrary values of the internal masses and the external four-momentum.
't Hooft, Amoros, Bauberger, Berends, Berends, Caffo, Caffo, Caffo, Caffo, Caffo, Czyz, Davydychev, Ettore Remiddi, Gehrmann, Ghinculov, Groote, Henryk Czyż, Laporta, Martin, Martin, Michał Gunia, Michele Caffo, Passarino, Passarino, Post, Pozzorini   +25 more
core   +1 more source

A numerical test of differential equations for one- and two-loop sunrise diagrams using configuration space techniques

, 2012
We use configuration space methods to write down one-dimensional integral representations for one- and two-loop sunrise diagrams (also called Bessel moments) which we use to numerically check on the correctness of the second order differential equations ...
A. A. Pivovarov, A.I. Davydychev, A.V. Kotikov, E. Mendels, E. Remiddi, J. G. Körner, M. Caffo, R. Delbourgo, S. Groote, S. Groote, S. Groote, S. Groote, S. Groote, S. Groote, S. Groote, S. Laporta, S. Müller-Stach   +16 more
core   +1 more source

On the evaluation of a certain class of Feynman diagrams in x-space: Sunrise-type topologies at any loop order

, 2005
We review recently developed new powerful techniques to compute a class of Feynman diagrams at any loop order, known as sunrise-type diagrams. These sunrise-type topologies have many important applications in many different fields of physics and we ...
A.A. Pivovarov, Anikin, Appelquist, Avdeev, Avdeev, Bagan, Baikov, Balitsky, Balk, Bartels, Bashir, Bauberger, Berends, Bogoliubov, Braun, Broadhurst, Broadhurst, Broadhurst, Broadhurst, Broadhurst, Caffo, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Chetyrkin, Coleman, Cutkosky, Cvetič, Davydychev, Delbourgo, Dudas, Fleischer, Gasser, Gasser, Generalis, Gilkey, Gorbunov, Gradshteyn, Groote, Groote, Groote, Groote, Groote, Groote, Groote, Groote, Groote, Groote, Gross, Gusynin, Hepp, Hoang, Hussain, Ioffe, Isgur, Itzykson, J.G. Körner, Jackiw, Jackiw, Kalinowski, Kataev, Kazakov, Krasnikov, Krasnikov, Krasnikov, Krasnikov, Krasulin, Kreimer, Kulagin, Körner, Körner, Körner, Kühn, Kühn, Laporta, Larin, Lipatov, Lipatov, Lowenstein, Mansfield, Mastrolia, Meijer, Mendels, Mikhailov, Narison, Ogreid, Ovchinnikov, Ovchinnikov, Penin, Penin, Pich, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Pivovarov, Platter, Polyakov, Post, Post, Prudnikov, Rajantie, S. Groote, Schwinger, Slavnov, Smirnov, Steinhauser, Terrano, Tkachov, Tkachov, Weinberg, Wetzorke, Witten, ’t Hooft, ’t Hooft, ’t Hooft, ’t Hooft   +128 more
core   +1 more source

Numerical evaluation of the general massive 2-loop sunrise self-mass master integrals from differential equations [PDF]

, 2002
The system of 4 differential equations in the external invariant satisfied by the 4 master integrals of the general massive 2-loop sunrise self-mass diagram is solved by the Runge-Kutta method in the complex plane.
Berends, Berends, Caffo, Caffo, Caffo, Caffo, Chetyrkin, Davydychev, E. Remiddi, Groote, Groote, Groote, H. Czyż, Ince, Itzykson, Laporta, Laporta, M. Caffo, Passarino, Post, Press, Tarasov, Tkachov   +22 more
core   +2 more sources