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Mostrando 281 - 300 Resultados de 591 Para Buscar '"supernova"', tiempo de consulta: 0.11s Limitar resultados
  1. 281
    “…Ground-based indirect measurements have shown that the cosmic-ray allparticle spectrum extends many orders of magnitude beyond the energy thought possible for supernova acceleration. Our balloon-borne Cosmic Ray Energetics And Mass (CREAM) experiment is capable of extending direct measurements of cosmic-rays to the supernova energy scale of 1015 eV in a series of Ultra Long Duration Balloon (ULDB) flights. …”
    Enlace del recurso
    CREAM for high energy composition measurements
  2. 282
    por Helfand, D J
    Publicado 2003
    “…"Created in a recent supernova explosion, a young neutron star reveals secrets of nuclear matter" (2 pages).…”
    Enlace del recurso
    Way too cool
  3. 283
    por Vannucci, François
    Publicado 2001
    “…Concerning neutrinos, the detection is still limited to terrestrial ones (apart from supernova production). A new way to search for extragalactic neutrinos is discussed.…”
    Enlace del recurso
    Detecting cosmic rays of the highest energies
  4. 284
    por Livio, M
    Publicado 2002
    “…Adam Riess, acting on behalf of the High-Z Supernova Team at the Space Telescope Science Institute, published a paper in 1998 which concluded that the universe's expansion is actually accelerating instead of slowing down (2 pages).…”
    Enlace del recurso
    Moving right along
  5. 285
    Publicado 2003
    “…These programs, using Grid computing technology, will help astronomers detect some of the most dramatic events in the universe, such as massive supernova explosions (1 page).…”
    Enlace del recurso
    PPARC: Grid technology helps astronomers keep pace with the Universe
  6. 286
    por Brouet, Anne-Muriel
    Publicado 2003
    “…A team of physicists from CERN and from Technion, the Israel Institute of Technology, used gamma rays to successfully forecast a supernova explosion (0.5 page)…”
    Enlace del recurso
    Le CERN regarde le ciel et comprend
  7. 287
    “…The axion signal will be an excess in $\gamma$-rays coming either from a specific celestial place behind the Sun, e.g. the Galactic Center, or, from any other direction in the sky being associated with a violent astrophysical event, e.g. a supernova. Earth bound detectors are also of potential interest. …”
    Enlace del recurso
    Enlace del recurso
    Search for energetic cosmic axions utilizing terrestrial/celestial magnetic fields
  8. 288
    “…For the 1/r^3 profile typical of supernova envelopes we compare our analytical to numerical results and to earlier approximations used in the literature. …”
    Enlace del recurso
    Enlace del recurso
    SN1987A and the Status of Oscillation Solutions to the Solar Neutrino Problem
  9. 289
    “…We find that in the regions where the neutrino-neutrino refractive index leads to collective flavor oscillations, the presence of new neutrino interactions can produce flavor equilibration in both normal and inverted neutrino mass hierarchy. In realistic supernova environments, these effects are significant if the nonstandard neutrino-neutrino interaction strength is comparable to the one expected in the standard case, dominating the ordinary matter potential. …”
    Enlace del recurso
    Enlace del recurso
    Nonstandard neutrino-neutrino refractive effects in dense neutrino gases
  10. 290
    “…Our results affect the flavour evolution of dense neutrino gases and may be of interest for collective three-flavour oscillations of supernova neutrinos. We spell out explicitly how these non-universal neutrino-neutrino interactions enter the flavour oscillation equations.…”
    Enlace del recurso
    Enlace del recurso
    Flavour-dependent radiative correction to neutrino-neutrino refraction
  11. 291
    “…We analyze the possibility of superluminal neutrino propagation delta v = (v - c)/c > 0 as indicated by OPERA data, in view of previous phenomenological constraints from supernova SN1987a and gravitational Cerenkov radiation. …”
    Enlace del recurso
    Enlace del recurso
    On the Possibility of Superluminal Neutrino Propagation
  12. 292
    por Botella, Ines Gil
    Publicado 2003
    “…This multipurpose detector opens up unique opportunities to look for phenomena beyond the Standard Model through the study of atmospheric, solar and supernova neutrinos, nucleon decay searches and neutrinos from the CERN to Gran Sasso beam. …”
    Enlace del recurso
    Physics potential of the ICARUS experiment
  13. 293
    “…This mechanism may also be relevant for Gamma Ray Bursts and, in the absence of magnetic field, supernova explosions.…”
    Enlace del recurso
    Powering AGNs with super-critical black holes
  14. 294
    “…We study the impact of neutrino magnetic moments on astrophysical neutrinos, in particular supernova neutrinos and ultra-high energy neutrinos from extragalactic sources. …”
    Enlace del recurso
    Magnetic Moments of Astrophysical Neutrinos
  15. 295
    “…Long-duration (>2 s) γ-ray bursts that are believed to originate from the death of massive stars are expected to be accompanied by supernovae. GRB 060614, that lasted 102 s, lacks a supernova-like emission down to very stringent limits and its physical origin is still debated. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Online Artículo Texto
    A possible macronova in the late afterglow of the long–short burst GRB 060614
  16. 296
    “…The concepts of Early Vascular Aging (EVA) and Supernormal Vascular Aging (SUPERNOVA) help to better understand on which determinants of arterial stiffness it is possible to act, in order to limit target organ damage and cardiovascular complications. …”
    Enlace del recurso
    Enlace del recurso
    Enlace del recurso
    Online Artículo Texto
    Arterial Stiffness and Hypertension in the Elderly
  17. 297
    por Kopal, Zdenek
    Publicado 1963
    “…Cataclysmic variables refer to an object in one of three classes: dwarf nova, nova, or supernova. These topics are followed by discussions on the eclipse phenomena and the eclipses i…”
    Enlace del recurso
    Advances in astronomy and astrophysics
  18. 298
    por Raffelt, Georg G
    Publicado 2002
    “…These fluxes can be used for direct measurements (e.g. solar or supernova neutrinos) or the back-reaction on the star can be used to derive limits on new particles. …”
    Enlace del recurso
    Enlace del recurso
    Stars and Fundamental Physics
  19. 299
    “…We consider the limits that may be set on a linear or quadratic violation of Lorentz invariance in the propagation of energetic neutrinos, v/c=[1 +- (E/M_\nuQG1)] or [1 +- (E/M_\nu QG2}^2], using data from supernova explosions and the OPERA long-baseline neutrino experiment. …”
    Enlace del recurso
    Enlace del recurso
    Probes of Lorentz Violation in Neutrino Propagation
  20. 300
    “…Presents the story of radio astronomy, of how radio waves are generated by stars, supernova, quasars, colliding galaxies, and by the very beginnings of the universe itself. …”
    Enlace del recurso
    Enlace del recurso
    The invisible universe: the story of radio astronomy
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