14.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.6k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.4k papers
- Heidelberg UniversityDE1.3k papers
- Max Planck SocietyDE1.1k papers
- University of ZurichCH1.1k papers
- European Organization for Nuclear ResearchCH1k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR990 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL973 papers
- University of Maryland, College ParkUS940 papers
- Rutherford Appleton LaboratoryGB939 papers
- Institute for Nuclear ResearchRU922 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT912 papers
39 papers · 2 filters
Outer-magnetospheric model for Vela-like pulsars:formation of sub-GeV spectrum
J. Takata, S. Shibata, K. Hirtotani
We investigate the -ray emission from a outer-gap accelerator, which is located in the outer-magnetosphere of a pulsar. The charge depletion from the Goldreich-Julian density ca…
Astrophysical Neutrino Telescopes
A. B. McDonald, C. Spiering, S. Schoenert +2
This review describes telescopes designed to study neutrinos from astrophysical sources. These sources include the Sun and Supernovae emitting neutrino energies up to tens of MeV,…
Limits on Very High Energy Emission from Gamma-Ray Bursts with the Milagro Observatory
The Milagro Collaboration, R. Atkins, W. Benbow +34
The Milagro telescope monitors the northern sky for 100 GeV to 100 TeV transient emission through continuous very high energy wide-field observations. The large effective area and…
Confirmation of strong magnetic field amplification and nuclear cosmic ray acceleration in SN 1006
E. G. Berezhko, L. T. Ksenofontov, H. J. Voelk
It is shown that the nonlinear kinetic model of cosmic ray (CR) acceleration in supernova remnants (SNRs) fits the shell-type nonthermal X-ray morphology, obtained in Chandra obser…
Photometric Mapping with ISOPHOT using the "P32" Astronomical Observation Template
Richard J. Tuffs, Carlos Gabriel
The ``P32'' Astronomical Observation Template (AOT) provided a means to map large areas of sky (up to 45 x 45 arcmin) in the far-infrared (FIR) at high redundancy and with sampling…
Far Infrared mapping of NGC 891
Cristina C. Popescu, Richard. J. Tuffs, Nikolaos D. Kylafis +1
We present deep maps of dust emission from the edge-on spiral galaxy NGC 891, obtained with the ISOPHOT instrument on board the Infrared Space Observatory in broad band filters wit…
Multiwavelength Observations of Strong Flares From the TeV-Blazar 1ES 1959+650
H. Krawczynski, S. B. Hughes, D. Horan +16
Following the detection of strong TeV gamma-ray flares from the BL Lac object 1ES 1959+650 with the Whipple 10 m Cherenkov telescope on May 16 and 17, 2002, we performed intensive…
The first detection of Far-Infrared emission associated with an extended HI disk. The case of NGC 891
Cristina C. Popescu, Richard. J. Tuffs
Spiral galaxies in the Local Universe are commonly observed to be embedded in extended disks of neutral hydrogen - the so called ``extended HI disks''. Based on observations made u…
A new template background estimate for source searching in TeV gamma-ray astronomy
G. P. Rowell
A new method is described that permits quickly and easily, a 2-dimensional search for TeV gamma-ray sources over large fields of view ~6deg with instruments utilising the imaging a…
The "sigma" problem of the Crab pulsar wind
J. G. Kirk, O. Skjaeraasen
The conversion of the Crab pulsar wind from one dominated by Poynting flux close to the star to one dominated by particle-born energy at the termination shock is considered. The id…
Infrared emission towards SN 1987A 11 years after outburst: Measurements with ISOCAM
Joerg Fischera, Richard J. Tuffs, Heinrich J. Voelk
We present measurements of the mid-infrared (MIR) emission from SN 1987A, made using the Infrared Space Observatory (ISO) 11 years after outburst. They are the only late epoch dete…
Infrared emission towards 11 years after outburst: Properties of the circumstellar dust
Jg. Fischera, R. J. Tuffs, H. J. Voelk
Detailed models are presented for the late epoch mid infrared (MIR) emission from collisionally heated grains in the shocked circumstellar gas around SN 1987A. Thermal dust emissio…
Jovian Dust Streams: A monitor of Io's volcanic plume activity
Harald Krueger, Paul Geissler, Mihaly Horanyi +7
Streams of high speed dust particles originate from Jupiter's innermost Galilean moon Io. After release from Io, the particles collect electric charges in the Io plasma torus, gain…
The optical system of the H.E.S.S. imaging atmospheric Cherenkov telescopes, Part II: mirror alignment and point spread function
R. Cornils, S. Gillessen, I. Jung. +16
Mirror facets of the H.E.S.S. imaging atmospheric Cherenkov telescopes are aligned using stars imaged onto the closed lid of the PMT camera, viewed by a CCD camera. The alignment p…
The optical system of the H.E.S.S. imaging atmospheric Cherenkov telescopes, Part I: layout and components of the system
K. Bernloehr, O. Carrol, R. Cornils +18
H.E.S.S. -- the High Energy Stereoscopic System -- is a new system of large imaging atmospheric Cherenkov telescopes, with about 100 m^2 mirror area for each of four telescopes, an…
Cosmic ray production in supernova remnants including reacceleration: the secondary to primary ratio
E. G. Berezhko, L. T. Ksenofontov, V. S. Ptuskin +2
We study the production of cosmic rays (CRs) in supernova remnants (SNRs), including the reacceleration of background galactic cosmic rays (GCRs) - thus refining the early consider…
The far-IR/radio correlation in the ISO era
D. Pierini, C. C. Popescu, R. J. Tuffs +1
We present the correlation between the far-infrared (FIR) and radio emissions from a composite sample of 72 nearby normal galaxies observed with the ISOPHOT instrument on board the…
A brief (blazar oriented) overview on topics for multi-wavelength observations with TeV photons
L. Costamante
Multi-wavelength observations with TeV photons are an essential diagnostic tool to study the physics of TeV sources. The complex variability of blazars, however (timescales from ye…
Constraining the Cosmic Background Light with four BL Lac TeV spectra
L. Costamante, F. Aharonian, D. Horns +1
The intrinsic BL Lac spectra above few hundreds GeV can be very different from the observed ones due to the absorption effects by the diffuse Extragalactic Background Light (EBL),…
HEGRA Contributions to the 28th International Cosmic Ray Conference
HEGRA Collaboration, in particular, : +10
This preprint encompasses thirteen individual contributions of the HEGRA collaboration to the 28th International Cosmic Ray conference in Tsukuba, Japan. The papers report on resul…
Coordinated Multiwavelength Observations of BL Lacertae in 2000
M. Boettcher
BL Lacertae was the target of an extensive multiwavelength monitoring campaign in the second half of 2000. Simultaneous or quasi-simultaneous observations were taken at radio (UMRA…
The spiral galaxy M33 mapped in the FIR by ISOPHOT: A spatially resolved study of the warm and cold dust
H. Hippelein, M. Haas, R. J. Tuffs +4
The Sc galaxy M33 has been mapped with ISOPHOT in the far-infrared, at 60, 100, and 170mue. The spatial resolution of these FIR maps allows the separation of spiral arms and intera…
Physical Conditions and Star Formation Activity in the Intragroup Medium of Stephan's Quintet
C. K. Xu, N. Lu, J. J. Condon +2
New multi-band observations of the famous compact group of galaxies Stephan's Quintet (SQ) are presented and analyzed. These include far infrared (FIR) images at 60 and 100…
The Technical Performance of the HEGRA System of Imaging Air Cherenkov Telescopes
G. Puehlhofer, O. Bolz, N. Goetting +1
Between early 1997 and late 2002, the HEGRA collaboration operated a stereoscopic system of 4 (later 5) imaging atmospheric Cherenkov telescopes. In this paper we present the calib…