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- National Institute for Subatomic PhysicsNL871 papers
- Centre National de la Recherche ScientifiqueFR771 papers
- University of AmsterdamNL560 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT517 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR514 papers
- University of BirminghamGB502 papers
- European Organization for Nuclear ResearchCH493 papers
- Lawrence Berkeley National LaboratoryUS484 papers
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68 papers · 2 filters
Imaging of star clusters in unperturbed spiral galaxies with the Advanced Camera for Surveys. I. The low luminosity galaxy NGC 45
Marcelo D. Mora, Soeren S. Larsen, Markus Kissler-Patig
We present results from ACS and WFPC observations in the low luminosity galaxy NGC 45. We identified 28 young star cluster candidates. While the exact values of age, mass, and exti…
Creation of cosmological magnetic fields in a bouncing cosmology
J. M. Salim, N. Souza, S. E. Perez Bergliaffa +1
We show (in a completely analytical and exact manner) that an efficient magnetic field amplification method is operative during the bounce in a time-dependent gauge coupling model.…
Decoherence from Isocurvature Perturbations in Inflation
Tomislav Prokopec, Gerasimos I. Rigopoulos
We discuss the possible role of isocurvature perturbations for the quantum decoherence of the curvature perturbation during inflation. We point out that if the inflaton trajectory…
Chemical Abundances in AGN Environment: X-Ray/UV Campaign on the MRK 279 Outflow
Nahum Arav, Jack R. Gabel, Kirk T. Korista +11
We present the first reliable determination of chemical abundances in an AGN outflow. The abundances are extracted from the deep and simultaneous FUSE and HST/STIS observations of…
Comments on the manuscript: ``The weak absorbing outflow in AGN Mrk 279: evidence of super-solar metal abundances'' astro-ph/0611578 by Fields et al
Nahum Arav, Jelle Kaastra, Elisa Costantini
A recent manuscript posted on astro-ph (astro-ph/0611578) by Fields et al. (hereafter F06) reports evidence of supersolar metal abundances in Mrk 279 by analyzing its Chandra LETGS…
XMM-Newton observations of HESS J1813-178 reveal a composite Supernova remnant
S. Funk, J. A. Hinton, Y. Moriguchi +10
We present X-ray and 12CO(J=1-0) observations of the very-high-energy (VHE) gamma-ray source HESS J1813-178 with the aim of understanding the origin of the gamma-ray emission. Usin…