Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Jedamzik, K."'
Autor:
Jacholkowska, A., Lamanna, G., Nuss, E., Bolmont, J., Adloff, C., Alcaraz, J., Battiston, R., Brun, P., Burger, W. J., Choutko, V., Coignet, G., Falvard, A., Flandrini, E., Girard, L., Goy, C., Jedamzik, K., Kossakowski, R., Moultaka, G., Natale, S., Pochon, J., Pohl, M., Rosier-Lees, S., Sapinski, M., Noarbe, I. Sevilla, Vialle, JP.
Publikováno v:
Phys.Rev.D74:023518,2006
The detection of non-baryonic dark matter through its gamma-ray annihilation in the centre of our galaxy has been studied. The gamma fluxes according to different models have been simulated and compared to those expected to be observed with the Alpha
Externí odkaz:
http://arxiv.org/abs/astro-ph/0508349
Autor:
Nuss, E., Moultaka, G., Falvard, A., Giraud, E., Jacholkowska, A., Jedamzik, K., Lavalle, J., Piron, F., Sapinski, M., Salati, P., Taillet, R.
It is widely believed that dark matter exists within galaxies and clusters of galaxies. Under the assumption that this dark matter is composed of the lightest, stable supersymmetric particle, assumed to be the neutralino, the feasibility of its indir
Externí odkaz:
http://arxiv.org/abs/astro-ph/0212560
Autor:
Falvard, A., Giraud, E., Jacholkowska, A., Lavalle, J., Nuss, E., Piron, F., Sapinski, M., Salati, P., Taillet, R., Jedamzik, K., Moultaka, G.
Publikováno v:
Astropart.Phys. 20 (2004) 467-484
It is widely believed that dark matter exists within galaxies and clusters of galaxies. Under the assumption that this dark matter is composed of the lightest, stable supersymmetric particle, assumed to be the neutralino, the feasibility of its indir
Externí odkaz:
http://arxiv.org/abs/astro-ph/0210184
Autor:
Giraud, E., Meylan, G., Sapinski, M., Falvard, A., Jacholkowska, A., Jedamzik, K., Lavalle, J., Nuss, E., Moultaka, G., Piron, F., Salati, P., Taillet, R.
The distant globular cluster Palomar 13 has been found to have a very high mass-to-light ratio and its profile can be well fitted either by a King model with a tail, or with a NFW model. This cluster may be the first case of the many clumps predicted
Externí odkaz:
http://arxiv.org/abs/astro-ph/0209230
Autor:
Sauer, D., Jedamzik, K.
Publikováno v:
Astron.Astrophys. 381 (2002) 361-373
The primordial helium abundance Y_p is commonly inferred from abundance determinations in low-metallicity extragalactic HII-regions. Such determinations may be subject to systematic uncertainties that are investigated here. Particular attention is pa
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104392
Autor:
Jedamzik, K., Rehm, Jan B.
Publikováno v:
Phys.Rev. D64 (2001) 023510
We examine the Big Bang nucleosynthesis (BBN) process in the presence of small-scale baryon inhomogeneities. Primordial abundance yields for D, He4, Li6, Li7, Be9, and B11 are computed for wide ranges of parameters characterizing the inhomogeneities
Externí odkaz:
http://arxiv.org/abs/astro-ph/0101292
Autor:
Jedamzik, K.
Standard Big Bang nucleosynthesis predicts an essentially zero primordial metallicity. I speculate on possible metal (i.e. nucleon number A\geq 12) production in scenarios of inhomogeneous Big Bang nucleosynthesis. It is conceivable, though not neces
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911242
Publikováno v:
Phys.Rev.Lett. 85 (2000) 700-703
Spatially varying primordial magnetic fields may be efficiently dissipated prior to the epoch of recombination due to the large viscosity of the baryon-photon fluid. We show that this dissipation may result in observable chemical potential mu and Com
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911100
Autor:
Jedamzik, K.
Publikováno v:
Phys.Rev.Lett. 84 (2000) 3248
I consider the synthesis of 6Li due to the decay of relic particles, such as gravitinos or moduli, after the epoch of Big Bang Nucleosynthesis. The synthesized 6Li/H ratio may be compared to 6Li/H in metal-poor stars which, in the absence of stellar
Externí odkaz:
http://arxiv.org/abs/astro-ph/9909445
Autor:
Niemeyer, J. C., Jedamzik, K.
Publikováno v:
Phys.Rev.D59:124013,1999
We present a numerical investigation of the gravitational collapse of horizon-size density fluctuations to primordial black holes (PBHs) during the radiation-dominated phase of the Early Universe. The collapse dynamics of three different families of
Externí odkaz:
http://arxiv.org/abs/astro-ph/9901292