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2013-06-20
06:44

Variability of the Spin Period of the White Dwarf in the Intermediate Polar V405 Aur: Low-Mass Third Body or Precession ? / Breus, V V ; Andronov, I L ; Dubovsky, P ; Kolesnikov, S V ; Zhuzhulina, E A ; Hegedus, T ; Beringer, P ; Petrik, K ; Robertson, J W ; Kudzej, I et al.
We present the results of photometric CCD observations of the magnetic cataclysmic variable V405 Aurigae (RX J0558.0+5353 = 1RXS J055800.7+535358) obtained using different instruments. [...]
arXiv:1306.4665. - 2013. - 7 p.
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2013-06-20
06:44

Modeling the Pollution of Pristine Gas in the Early Universe / Pan, Liubin ; Scannapieco, Evan ; Scalo, John
We conduct a comprehensive theoretical and numerical investigation of the pollution of pristine gas in turbulent flows, designed to provide new tools for modeling the evolution of the first generation of stars. [...]
arXiv:1306.4663. - 2013. - 37 p.
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2013-06-20
06:44

Inflection Point Quintessence / Chang, Hui-Yiing ; Scherrer, Robert J
We examine models in which the accelerated expansion of the universe is driven by a scalar field rolling near an inflection point in the potential. [...]
arXiv:1306.4662. - 2013. - 5 p.
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2013-06-20
06:44

Dynamical instability of white dwarfs and breaking of spherical symmetry under the presence of extreme magnetic fields / Coelho, J G ; Marinho, R M ; Malheiro, M ; Negreiros, R ; Rueda, J A ; Ruffini, R
In this letter we discuss some basic properties of the equilibrium of magnetized white dwarfs, in particular the condition for dynamical instability of the star in the presence of an extremely large magnetic field. [...]
arXiv:1306.4658. - 2013. - 5 p.
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2013-06-20
06:44

Near-Infrared Spectroscopy of Infrared-Excess Stellar Objects in the Young Supernova Remnant G54.1+0.3 / Kim, Hyun-Jeong ; Koo, Bon-Chul ; Moon, Dae-Sik
We present the results of broadband near-infrared spectroscopic observations of the recently discovered mysterious stellar objects in the young supernova remnant G54.1+0.3. [...]
arXiv:1306.4656. - 2013. - 22 p.
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2013-06-20
06:44

Metals in the IGM approaching the re-ionization epoch: results from X-shooter at the VLT / D'Odorico, V (INAF-OATS, Trieste, Italy) ; Cupani, G (INAF-OATS, Trieste, Italy) ; Cristiani, S (INAF-OATS, Trieste, Italy ; INFN/National Institute of Nuclear Physics, Trieste, Italy) ; Maiolino, R (INAF-OAR, Monte Porzio Catone, Italy ; Cavendish Laboratory, Univ. of Cambridge, UK ; Kavli Institute for Cosmology, Cambridge, UK) ; Molaro, P (INAF-OATS, Trieste, Italy) ; Nonino, M (INAF-OATS, Trieste, Italy) ; Centurión, M (INAF-OATS, Trieste, Italy) ; Cimatti, A (Universita` di Bologna, Italy) ; Alighieri, S di Serego (INAF-OAArcetri, Firenze Italy) ; Fiore, F (INAF-OAR, Monte Porzio Catone, Italy) et al.
We present the results of observations taken with the X-shooter spectrograph devoted to the study of quasars at z~6. [...]
arXiv:1306.4604. - 2013. - 39 p.
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2013-06-20
06:44

Infrared identification of 2XMM J191043.4+091629.4 / Roca, J J Rodes (University of Alicante) ; Torrejón, J M (University of Alicante) ; Martínez-Núñez, S (University of Alicante) ; Bernabéu, G (University of Alicante) ; Magazzú, A (Telescopio Nazionale Galileo)
Here we report the infrared identification of the X-ray source 2XMM J191043.4+091629.4, which was detected by XMM-Newton/EPIC in the vicinity of the Galactic supernova remnant W49B. [...]
arXiv:1306.4597. - 2013. - 10 p.
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2013-06-20
06:44

The Inherently Three-Dimensional Nature of Magnetized Plasma Turbulence / Howes, Gregory G
It is often asserted or implicitly assumed, without justification, that the results of two-dimensional investigations of plasma turbulence are applicable to the three-dimensional plasma environments of interest. [...]
arXiv:1306.4589. - 2013. - 11 p.
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2013-06-20
06:44