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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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24 papers · 2 filters
Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009
M. L. Ahnen, S. Ansoldi, L. A. Antonelli +290
We present an extensive study of the BL Lac object Mrk 501 based on a data set collected during the multi-instrument campaign spanning from 2009 March 15 to 2009 August 1 which inc…
Search for annihilating dark matter in the Sun with 3 years of IceCube data
IceCube Collaboration, M. G. Aartsen, M. Ackermann +301
We present results from an analysis looking for dark matter annihilation in the Sun with the IceCube neutrino telescope. Gravitationally trapped dark matter in the Sun's core can a…
Observations of Sagittarius A* during the pericenter passage of the G2 object with MAGIC
M. L. Ahnen, S. Ansoldi, L. A. Antonelli +153
Context. We present the results of a multi-year monitoring campaign of the Galactic Center (GC) with the MAGIC telescopes. These observations were primarily motivated by reports th…
A search for spectral hysteresis and energy-dependent time lags from X-ray and TeV gamma-ray observations of Mrk 421
A. U. Abeysekara, S. Archambault, A. Archer +220
Blazars are variable emitters across all wavelengths over a wide range of timescales, from months down to minutes. It is therefore essential to observe blazars simultaneously at di…
The contribution of Fermi-2LAC blazars to the diffuse TeV-PeV neutrino flux
IceCube Collaboration, M. G. Aartsen, K. Abraham +319
The recent discovery of a diffuse cosmic neutrino flux extending up to PeV energies raises the question of which astrophysical sources generate this signal. One class of extragalac…
First Study of Combined Blazar Light Curves with FACT and HAWC
Daniela Dorner, Robert J. Lauer, : +28
For studying variable sources like blazars, it is crucial to achieve unbiased monitoring, either with dedicated telescopes in pointing mode or survey instruments. At TeV energies,…
Multiwavelength observations of a VHE gamma-ray flare from PKS 1510-089 in 2015
MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +172
Context. PKS 1510-089 is one of only a few flat spectrum radio quasars detected in the VHE (very-high-energy, > 100 GeV) gamma-ray band. Aims. We study the broadband spectral and t…
Detection of very high energy gamma-ray emission from the gravitationally-lensed blazar QSO B0218+357 with the MAGIC telescopes
MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +151
Context. QSO B0218+357 is a gravitationally lensed blazar located at a redshift of 0.944. The gravitational lensing splits the emitted radiation into two components, spatially indi…
All-sky search for time-integrated neutrino emission from astrophysical sources with 7 years of IceCube data
IceCube Collaboration, M. G. Aartsen, K. Abraham +306
Since the recent detection of an astrophysical flux of high energy neutrinos, the question of its origin has not yet fully been answered. Much of what is known about this flux come…
First search for dark matter annihilations in the Earth with the IceCube Detector
IceCube Collaboration, M. G. Aartsen, K. Abraham +312
We present the results of the first IceCube search for dark matter annihilation in the center of the Earth. Weakly Interacting Massive Particles (WIMPs), candidates for dark matter…
Observation and Characterization of a Cosmic Muon Neutrino Flux from the Northern Hemisphere using six years of IceCube data
IceCube Collaboration, M. G. Aartsen, K. Abraham +309
The IceCube Collaboration has previously discovered a high-energy astrophysical neutrino flux using neutrino events with interaction vertices contained within the instrumented volu…
Search for Sources of High Energy Neutrons with Four Years of Data from the IceTop Detector
IceCube Collaboration, M. G. Aartsen, K. Abraham +308
IceTop is an air shower array located on the Antarctic ice sheet at the geographic South Pole. IceTop can detect an astrophysical flux of neutrons from Galactic sources as an exces…
Lowering IceCube's Energy Threshold for Point Source Searches in the Southern Sky
IceCube Collaboration, M. G. Aartsen, K. Abraham +317
Observation of a point source of astrophysical neutrinos would be a "smoking gun" signature of a cosmic-ray accelerator. While IceCube has recently discovered a diffuse flux of ast…
All-flavour Search for Neutrinos from Dark Matter Annihilations in the Milky Way with IceCube/DeepCore
IceCube collaboration, M. G. Aartsen, K. Abraham +319
We present the first IceCube search for a signal of dark matter annihilations in the Milky Way using all-flavour neutrino-induced particle cascades. The analysis focuses on the Dee…
Super-orbital variability of LS I +61°303 at TeV energies
MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +150
The gamma-ray binary LS I +61303 is a well established source from centimeter radio up to very high energy (VHE; E100 GeV). Its broadband emission shows a periodicity…
Multi-Wavelength Observations of the Blazar 1ES 1011+496 in Spring 2008
The MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +158
The BL Lac object 1ES 1011+496 was discovered at Very High Energy gamma-rays by MAGIC in spring 2007. Before that the source was little studied in different wavelengths. Therefore…
Search for VHE gamma-ray emission from Geminga pulsar and nebula with the MAGIC telescopes
M. L. Ahnen, S. Ansoldi, L. A. Antonelli +152
The Geminga pulsar, one of the brighest gamma-ray sources, is a promising candidate for emission of very-high-energy (VHE > 100 GeV) pulsed gamma rays. Also, detection of a large n…
Insights into the emission of the blazar 1ES 1011+496 through unprecedented broadband observations during 2011 and 2012
J. Aleksić, S. Ansoldi, L. A. Antonelli +161
1ES 1011+496 was discovered in very high energy (VHE, E >100 GeV) -rays with MAGIC in 2007. The absence of simultaneous data at lower energies led to a rather incomp…
Investigating the peculiar emission from the new VHE gamma-ray source H1722+119
MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +159
The MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescopes observed the BL Lac object H1722+119 (redshift unknown) for six consecutive nights between 2013 May 17 and 22,…
Anisotropy in Cosmic-Ray Arrival Directions in the Southern Hemisphere with Six Years of Data from the IceCube Detector
IceCube Collaboration, M. G. Aartsen, K. Abraham +314
The IceCube Neutrino Observatory has accumulated a total of 318 billion cosmic-ray induced muon events between May 2009 and May 2015. This data set was used for a detailed analysis…
MAGIC observations of the February 2014 flare of 1ES 1011+496 and ensuing constraint of the EBL density
M. L. Ahnen, S. Ansoldi, L. A. Antonelli +144
In February-March 2014, the MAGIC telescopes observed the high-frequency peaked BL Lac 1ES 1011+496 (z=0.212) in flaring state at very-high energy (VHE, E>100GeV). The flux reached…
Deep observation of the NGC 1275 region with MAGIC: search of diffuse gamma-ray emission from cosmic rays in the Perseus cluster
MAGIC Collaboration, M. L. Ahnen, S. Ansoldi +154
Clusters of galaxies are expected to be reservoirs of cosmic rays (CRs) that should produce diffuse gamma-ray emission due to their hadronic interactions with the intra-cluster med…
High-energy Neutrino follow-up search of Gravitational Wave Event GW150914 with ANTARES and IceCube
S. Adrián-Martínez, A. Albert, M. André +1387
We present the high-energy-neutrino follow-up observations of the first gravitational wave transient GW150914 observed by the Advanced LIGO detectors on Sept. 14th, 2015. We search…
An All-Sky Search for Three Flavors of Neutrinos from Gamma-Ray Bursts with the IceCube Neutrino Observatory
IceCube Collaboration, M. G. Aartsen, K. Abraham +314
We present the results and methodology of a search for neutrinos produced in the decay of charged pions created in interactions between protons and gamma-rays during the prompt emi…