Aleksić, MAGIC Collaboration: J., Anderhub, H., Antonelli, L. A., Antoranz, P., Backes, M., Baixeras, C., ...
The blazar PG 1553+113 is a well known TeV gamma-ray emitter. In this paper, we determine its spectral energy distribution using simultaneous multi-frequency data in order to study its emission...
Correlated X-ray and Very High Energy emission in the gamma-ray binary LS I +61 303 (2009)
Antonelli, L. A., Antoranz, P., Backes, M., Baixeras, C., Balestra, S., ...
The discovery of very high energy (VHE) gamma-ray emitting X-ray binaries has triggered an intense effort to better understand the particle acceleration, absorption, and emission mechanisms in...
Antonelli, L. A., Antoranz, P., Backes, M., Baixeras, C., Balestra, S., ...
Index entry listing the contributed papers of the MAGIC collaboration to the 31th International Cosmic Ray Conference (ICRC 2009), July 7-15 2009, \L\'od\'z, Poland. The individual papers are sorted...
Observation of shadowing of the cosmic electrons and positrons by the Moon with IACT (2009)
Colin, P., Tridon, D. Borla, Britzger, D., Lorenz, E., Mirzoyan, R., Schweizer, T., ...
Recent measurements of the cosmic-ray electron (e-) and positron (e+) fluxes show apparent excesses compared to the spectra expected by standard cosmic-ray (CR) propagation models in our galaxy....
Development of HPD Clusters for MAGIC-II (2009)
Orito, R., Bernardini, E., Bose, D., Dettlaff, A., Fink, D., Fonseca, V., ...
MAGIC-II is the second imaging atmospheric Cherenkov telescope of the MAGIC observatory, which has recently been inaugurated on Canary island of La Palma. We are currently developing a new camera...
Errando, M., Bock, R., Kranich, D., Lorenz, E., Majumdar, P., Mariotti, M., ...
3C 279 is one of the best studied flat spectrum radio quasars located at a comparatively large redshift of z = 0.536. Observations in the very high energy band of such distant sources were impossible...
Towards a Complex Automata multiscale model of in-stent restenosis (2009)
Caiazzo, A., Evans, D., Hegewald, J., Lorenz, E., Stahl, B., ...
In-stent restenosis, the maladaptive response of a blood vessel to injury caused by the deployment of a stent, is a multiscale problem involving a large number of processes. We describe a Complex...
Towards a Complex Automata multiscale model of in-stent restenosis (2009)
Caiazzo, A., Evans, D., Hegewald, J., Lorenz, E., Stahl, B., ...
In-stent restenosis, the maladaptive response of a blood vessel to injury caused by the deployment of a stent, is a multiscale problem involving a large number of processes. We describe a Complex...
J. Albert, E. Aliu, H. Anderhub, P. Antoranz, C. Baixeras, ...
Journal article
Recent progress of GaAsP HPD development for the MAGIC telescope project (2008)
Saito, T. Y., Shayduk, M., Fonseca, M. V., Hayashida, M., Lorenz, E., Mannheim, K., ...
Today the Hybrid Photon Detector (HPD) is one of the few low light level (LLL) sensors that can provide an excellent single and multiple photoelectron (ph.e.) amplitude resolution. The recently...
The Active Mirror Control of the MAGIC Telescope (2008)
Biland, A., Garczarczyk, M., Anderhub, H., Danielyan, V., Hakobyan, D., Lorenz, E., ...
One of the main design goals of the MAGIC telescopes is the very fast repositioning in case of Gamma Ray Burst (GRB) alarms, implying a low weight of the telescope dish. This is accomplished by using...
The MAGIC Collaboration, Errando, M., Böck, R., Kranich, D., Lorenz, E., Et Al.
3C 279 is one of the best studied flat spectrum radio quasars located at a comparatively large redshift of z = 0.536. Observations in the very high energy band of such distant sources were impossible...
Rico, J., Ona-Wilhelmi, E De, Cortina, J., Lorenz, E.
We study the capability of the MAGIC telescope to observe under moderate moonlight. TeV gamma-ray signals from the Crab nebula were detected with the MAGIC telescope during periods when the Moon was...
The central pixel of the MAGIC telescope for optical observations (2008)
Lucarelli, F., Goebel, F., Lorenz, E., Otte, N., Et Al.
The MAGIC telescope has been designed for the observation of Cerenkov light generated in Extensive Air Showers initiated by cosmic particles. However, its 17 m. diameter mirror and optical design...
Cerenkov Arrays, F. Arqueros, A. Karle, E. Lorenz, S. Martinez, R. Plaga, ...
The angle-integrating Cerenkov technique provides a promising new approach to ground-based fl-ray astronomy in an energy range just above that accessible by air- Cerenkov telescopes. A method for...
Albert, J, Aliu, E, Anderhub, H, Antonelli, L A, Antoranz, P, Backes, M, ...
We use the timing of photons observed by the MAGIC gamma-ray telescope during a flare of the active galaxy Markarian 501 to probe a vacuum refractive index ~ 1-(E/M_QGn)^n, n = 1,2, that might be...
A new readout of large area smart Photomultipliers by Geiger-mode APDs (2007)
Future Neutrino detectors require large, transparent detection volumes (water, ice, scintillator) and in turn a large number of large photomultipliers (PMT). We present a possible photon detector...
Lorenz, E., Britvich, I., Ferenc, D., Otte, N., Renker, D., Sadygov, Z., ...
The use of Geiger Mode APDs (G-APD)/micro-cell APDs (MAPD) opens new simplifications in PET designs. We report on some test studies for a Small Animal PET based on LYSO crystals and G-APDs/MAPDs for...
Gamma-ray astronomy with ground-based array detectors: status and perspectives (2007)
The basic concept and the status of currently operating ground-based array detectors for VHE gamma-ray astronomy will be presented and compared with imaging air Cherenkov telescopes. Also an outlook...
Development of scintillation detectors based on avalanche microchannel photodiodes (2007)
Britivitch, I., Lorenz, E., Et Al.
Avalanche Microchannel PhotoDiodes (AMPDs) are solid state photodetectors with high internal gain and a density of independent channels up to 10^(4)/mm^(2). They are potential substitutes for...
Drews, A., Keizer, A.C. De, Beyer, H.G., Lorenz, E., Betcke, J.W.H., ...
Small grid-connected photovoltaic systems up to 5 kWp are often not monitored because advanced surveillance systems are not economical. Hence, some system failures which lead to partial energy losses...
Flux upper limit of gamma-ray emission by GRB050713a from MAGIC Telescope observations (2006)
Albert, J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Asensio, M., ...
The long-duration GRB050713a was observed by the MAGIC Telescope, 40 seconds after the burst onset, and followed up for 37 minutes, until twilight. The observation, triggered by a SWIFT alert,...
Baixeras, C., Bretz, T., Biland, A., Bock, R., Cortina, J., De Angelis, A., ...
MAGIC, the largest ground-based gamma ray telescope in the world, has been in scientific operation since summer 2004. The major motivation of the MAGIC project is to study high energy phenomena in...
The Mirrors for the MAGIC Telescopes (2006)
The MAGIC Collaboration, Bastieri, D., Agguiaro, D., Arnold, J., Bigongiari, C., Dazzi, F., ...
The MAGIC Telescope has the largest reflecting surface, among other Cherenkov detectors, in order to have an energy threshold well below 100 GeV. In this contribution, we describe the technology used...
Development of HPDs with an 18-mm-diameter GaAsP photo cathode for the MAGIC-II project (2006)
Hayashida, M., Hose, J., Laatiaoui, M., Lorenz, E., Mirzoyan, R., Teshima, M., ...
A new type of Hybrid PhotoDetectors (HPDs) with an 18-mm-diameter GaAsP photo cathode was developed in order to lower the energy threshold of the MAGIC-II project down to 15 GeV. The peak value of...
Observations of 14 young open star clusters with the HEGRA system of Cherenkov telescopes (2006)
Aharonian, F., Akhperjanian, A., Beilicke, M., Bernlöhr, K., Bojahr, H., ...
Mirzoyan, R., Sobczynska, D., Lorenz, E., Teshima, M.
Atmospheric air Cherenkov telescopes are successfully used for ground-based, very high-energy (VHE) c ray astronomy. Triggers from the so-called single muon and other long-flying relativistic charged...
High-energy astroparticle physics (2006)
The current directions and main experiments in high-energy (>10 ^6 eV) astroparticle physics will be reviewed. Emphasis is put on the connection to the goals of this conference, e.g. to experiments...
Flux upper limit of gamma-ray emission by GRB050713a from MAGIC Telescope observations (2006)
Albert, J., Aliu, E., Anderhub, H., Antoranz, P., Armada, A., Asensio, M., ...
The long-duration GRB050713a was observed by the MAGIC Telescope, 40 seconds after the burst onset, and followed up for 37 minutes, until twilight. The observation, triggered by a SWIFT alert,...
E. Lorenz, W. Janke, Irreversible Thermodynamics
PACS 75.40.Gb – Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.) PACS 64.60.Ht – Dynamic critical phenomena Abstract – Much effort has been spent...
$\pi \pi$ phase shift analysis (2005)
Estabrooks, P G, Martin, A D, Grayer, G, Hyams, Bernard David, Jones, C, Weilhammer, P, ...
The MAGIC Telescope, Status and Future Plans (2005)
The MAGIC Collaboration, Lorenz, E.
The status of the 17 m diameter imaging air Cherenkov telescope MAGIC will be presented. The telescope is in the final phase of commissioning and first (test-) data have been recorded. Also, the next...
The unidentified TeV source (TeV J2032+4130) and surrounding field: Final HEGRA IACT-Syste (2005)
Aharonian, Felix, Akhperjanian, A., Beilicke, M., Bernlöhr, K., Bojahr, H., ...
The unidentified TeV source in Cygnus is now confirmed by follow-up observations from 2002 with the HEGRA stereoscopic system of Cherenkov Telescopes. Using all data (1999 to 2002) we confirm this...
Search for Gamma Rays from the Galactic Center with the MAGIC Telescope (2005)
Bartko, H., Biland, A., Bisesi, E., Commichau, S., Flix, P., Lorenz, E., ...
The Galactic Center (GC) is a very interesting region for gamma ray astronomy. Various possibilities for the production of very high energy (VHE) gamma rays near the GC are discussed in the...
Aharonian, Felix, Akhperjanian, A., Beilicke, M., Bernlöhr, K., Bojahr, H., ...
We present results of a search for TeV -ray emission from the microquasar SS-433 and the surrounding region covering a ~ 8°x8° field of view. Analysis of data taken with the HEGRA stereoscopic...
Commissioning and first tests of the MAGIC telescope (2004)
Baixeras, C., Bastieri, D., Bigongiari, C., Blanch, O., Blanchot, G., Bock, R., ...
Major Atmospheric Gamma Imaging Cherenkov telescope is starting its operations with a set of engineering runs to tune the telescope subsystem elements to be ready for the first physics campaign. Many...
Status of the 17m diameter MAGIC telescope (2004)
The MAGIC Collaboration, Lorenz, E.
The 17 m diameter MAGIC telescope for ground based gamma-ray astronomy is currently commissioned at the Roque de los Muchachos, La Palma. The status, with emphasis on some specific technical...
Ground-Based Gamma-Ray Astronomy (2004)
Very high energy (VHE) gamma-ray astronomy is a very young field of astronomy. The main detection techniques, the status and the near term prospects will be reviewed.
The MAGIC Telescope Reflecting Surface (2004)
Bigongiari, C., Bastieri, D., Galante, N., Lorenz, E., Et Al.
The MAGIC telescope will achieve an energy threshold lower than any other present IACT thanks to the largest reflecting surface, a 17 m diameter, f/1, tessellated parabolic reflector. The tiles are...
Aharonian, F., Akhperjanian, A., Beilicke, M., Bernlöhr, K., Börst, H. G., Bojahr, H., ...
In the first month of 2001 the AGN Mkn 421 showed highly variable, strong TeV activity at flux levels frequently exceeding 1 Crab. Here we present the light curve and energy spectrum of Mkn 421 as...
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
Is the giant radio galaxy M 87 a TeV gamma-ray emitter? (2003)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
Is the giant radio galaxy M 87 a TeV gamma-ray emitter? (2003)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2003
An unidentified TeV source in the vicinity of Cygnus OB2 (2002)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2002
TeV gamma rays from the blazar H 1426+428 and the diffuse extragalactic background radiation (2002)
Aharonian, Felix A., Akhperjanian, A., Barrio, J. A., Beilicke, M., Bernlohr, K., Borst, H., ...
© The European Southern Observatory 2002
An unidentified TeV source in the vicinity of Cygnus OB2 (2002)
Aharonian, Felix A., Akhperjanian, A., Beilicke, M., Bernlohr, K., Borst, H., Bojahr, H., ...
© The European Southern Observatory 2002
TeV gamma rays from the blazar H 1426+428 and the diffuse extragalactic background radiation (2002)
Aharonian, Felix A., Akhperjanian, A., Barrio, J. A., Beilicke, M., Bernlohr, K., Borst, H., ...
© The European Southern Observatory 2002
Correlated Intense X-Ray And Tev Activity Of Markarian 501 In 1998 June (2000)
R. M. Sambruna, F. A. Aharonian, H. Krawczynski, A. G. Akhperjanian, J. A. Barrio, K. Bernlo Hr, ...
We present exactly simultaneous X-ray and TeV monitoring with RXT E and HEGRA of the TeV blazar Mrk 501 during 15 days in 1998 June. After an initial period of very low ux at both wavelengths, the...
Evidence for a QPO structure in the TeV and X-ray light curve during the 1997 high (1999)
State Emission Of, D. Kranich, M. Kestel, E. Lorenz, The Hegra Collaboration
The BL Lac Object Mkn 501 was in a state of high activity in the TeV range in 1997. During this time Mkn 501 was observed by all Cherenkov-Telescopes of the HEGRA-Collaboration. Part of the data were...
Trust, contract and economic cooperation (1999)
After providing a brief overview of the standard economic analysis of incomplete contracts in terms of property rights, transaction costs and self-enforcing implicit contracts, the author shows why,...
Very High Energy Gamma Rays From Markarian 501 (1997)
Protheroe Bhat, P. Fleury, E. Lorenz, M. Teshima, T. C. Weekes
During remarkable flaring activity in 1997 Markarian 501 was the brightest source in the sky at TeV energies, outshining the Crab Nebula by a factor of up to 10. Periods of flaring activity each...
HELENA: a beauty factory in Hamburg (1992)
Albrecht, H, Böhm, G, Ehrlichmann, H, Michel, E, Nowak, H, Nowak, S, ...
Grunicke, Hans, Stoeck, Michael, Elsner, J., Seemann, G., Pfeiffer, C., Wegmann, B., ...
Peer Reviewed
Effect of oxygen on the formation of end-of-range disorder in implantation amorphized silicon (1991)
Frey, L., Khanh, N.Q., Gyulai, J., Lorenz, E.
Formation of End-of-Range (EOR) disorder was studied in (100)-oriented silicon, when subjected to amorphization by implantation of Gehighplus ions, followed by a 10 s Rapid Thermal Annealing (RTA) at...
Pauss, Felicitas, González-Arroyo, A, Ochs, Wolfgang, Alper, B, Blanar, G J, Cerrada-Canales, M, ...
Production and decay properties of D and D% mesons in pi-Be interactions (1990)
Bailey, R, Bardsley, D G, Becker, H, Blanar, G J, Böhringer, T, Bosman, M, ...
Measurement and analysis of the reaction pi$^{-}$p --> rho$^{0}$n on a polarized target (1990)
Becker, H, Blanar, G J, Blum, Walter, Cerrada-Canales, M, Dietl, H, Gallivan, J, ...
Experimental proof of the existence of the A$_{1}$ meson (1990)
Daum, C, Hertzberger, L O, Hoogland, Walter, Peters, S, Van Deurzen, P, Chabaud, V, ...
3pi resonances in 2$^{-}$ partial waves (1990)
Daum, C, Hertzberger, L O, Hoogland, Walter, Peters, S, Van Deurzen, P, Chabaud, V, ...
Measurement and analysis of the reaction pi$^{-}$p --> rho$^{0}$n on a polarized target (1990)
Becker, H, Blanar, G J, Blum, Walter, Cerrada-Canales, M, Dietl, H, Gallivan, J, ...
Observation of a narrow $\overline{p}$p enhancement at 1940 MeV (1990)
Daum, C, Hertzberger, L O, Hoogland, Walter, Jongerius, R, Kluyver, J C, Peters, S, ...
Evidence for the associated production of strange particles and phi mesons (1990)
Daum, C, Hertzberger, L O, Hoogland, Walter, Jongerius, R, Peters, S, Van Deurzen, P, ...
Study of the charge-exchange reactions pi$^{-}$p --> (pi$^{0}$,eta,eta')n at 63 GeV (1990)
Daum, C, Hertzberger, L O, Hoogland, Walter, Jongerius, R, Peters, S, Van Deurzen, P, ...
Diffractive production of 3pi states at 63 and 94 GeV (1990)
Daum, C, Hertzberger, L O, Hoogland, Walter, Peters, S, Van Deurzen, P, Chabaud, V, ...
Measurement of diffractive 3pi production on a polarized target at 17 GeV/c (1990)
Chabaud, V, De Groot, J, Hyams, Bernard David, Papadopoulou, T D, Weilhammer, Peter, Niczyporuk, B B, ...
Evidence for a spin-5 boson resonance at 2300 MeV (1990)
Alper, B, Becker, H, Berglund, A J, Blakey, I, Blanar, G J, Bowler, M G, ...
Diffractive production of strange mesons at 63 GeV (1990)
Daum, C, Hertzberger, L O, Hoogland, Walter, Peters, S, Van Deurzen, P, Chabaud, V, ...
Implementation of models for stress-reduced oxidation into 2-D simulator (1988)
Seidl, A., Huber, V., Rudan, M., Selberherr, S., Stippel, H., Strasser, E., ...
Numerical models for local oxidation are usually based on an extension of the Deal-Grove model to two dimensions. However, for technological application a model for stress-reduced oxidation (SRO) is...
Review of current dental literature. A case of thrush with unusual localization (1929)
Editors: Aug. 1859-July 1865, J. D. White, J. H. McQuillen, G. J. Ziegler.--Aug. 1865-Dec. 1871, J. H. McQuillen, G. J. Ziegler.--Jan. 1872-May 1891, J. W. White.--July 1891-Apr. 1930, E. C. Kirk...
T. Saito, E. Bernardinin, D. Bose, M.V. Fonseca, ...
Conference presentation
Observations of BL Lacertae with the MAGIC Telescope
Berger, K., Wagner, R. M., Hayashida, M., Kranich, D., Lindfors, E., ...
Since about 2002 the current-generation imaging air Cherenkov telescopes have discovered more than 50 new VHE gamma-ray sources. More importantly, new extragalactic source classe have been...