Search Results - "Cunha, J V"

Transition redshift: new kinematic constraints from supernovae by Cunha, J. V., Lima, J. A. S.

“…The transition redshift (deceleration/acceleration) is discussed by expanding the deceleration parameter to first order around its present value. A detailed…”
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Gravitational waves from ultra-short period exoplanets by Cunha, J V, Silva, F E, Lima, J A S

“…ABSTRACT In the last two decades, thousands of extrasolar planets were discovered based on different observational techniques, and their number must increase…”
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Can Old Galaxies at High Redshifts and Baryon Acoustic Oscillations Constrain H 0? by Lima, J. A. S, Jesus, J. F, Cunha, J. V

“…A new age-redshift test is proposed in order to constrain H 0 on the basis of the existence of old high-redshift galaxies (OHRGs). In the flat Lambda cold dark…”
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Cosmological implications of APM 08279+5255, an old quasar at z = 3.91 by Alcaniz, J. S., Lima, J. A. S., Cunha, J. V.

“…The existence of old high-redshift objects provides an important tool for constraining the expanding age of the Universe and the formation epoch of the first…”
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Cu(In,Ga)Se2 based ultrathin solar cells the pathway from lab rigid to large scale flexible technology by Lopes, T. S., Teixeira, J. P., Curado, M. A., Ferreira, B. R., Oliveira, A. J. N., Cunha, J. M. V., Monteiro, M., Violas, A., Barbosa, J. R. S., Sousa, P. C., Çaha, I., Borme, J., Oliveira, K., Ring, J., Chen, W. C., Zhou, Y., Takei, K., Niemi, E., Deepak, F. L., Edoff, M., Brammertz, G., Fernandes, P. A., Vermang, B., Salomé, P. M. P.

“…The incorporation of interface passivation structures in ultrathin Cu(In,Ga)Se 2 based solar cells is shown. The fabrication used an industry scalable…”
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Constraining the dark energy with galaxy cluster x-ray data by Lima, J. A. S., Cunha, J. V., Alcaniz, J. S.

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Simplified quartessence cosmology by Lima, J.A.S., Cunha, J.V., Alcaniz, J.S.

“…We propose a new class of accelerating world models unifying the cosmological dark sector (dark matter and dark energy). All the models are described by a…”
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Insulator Materials for Interface Passivation of Cu(In,Ga)Se2 Thin Films by Cunha, J. M. V., Fernandes, P. A., Hultqvist, A., Teixeira, J. P., Bose, S., Vermang, B., Garud, S., Buldu, D., Gaspar, J., Edoff, M., Leitao, J. P., Salome, P. M. P.

“…In this work, metal-insulator-semiconductor structures were fabricated in order to study different types of insulators, namely, aluminum oxide (Al 2 O 3 ),…”
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Gravitational Waves From Ultra Short Period Exoplanets by Cunha, J. V, Silva, F. E, Lima, J. A. S

“…In the last two decades, thousands of extrasolar planets were discovered based on different observational techniques, and their number must increase…”
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Constraining H 0 from the Sunyaev–Zel'dovich effect, galaxy cluster X-ray data and baryon oscillations by Cunha, J. V., Marassi, L., Lima, J. A. S.

“…Abstract Estimates of H0 from the Sunyaev–Zel'dovich effect (SZE) and X-ray surface brightness of galaxy clusters depends on the underlying cosmology. In the…”
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Kinematic Constraints to the Transition Redshift from SNe Ia Union Data by Cunha, J. V

“…Phys.Rev.D79:047301,2009 The kinematic approach to cosmological tests provides a direct evidence to the present accelerating stage of the universe which does…”
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Kinematic constraints to the transition redshift from supernovae type Ia union data by Cunha, J. V.

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DEFORMED DISTANCE DUALITY RELATIONS AND SUPERNOVA DIMMING by LIMA, J. A. S, CUNHA, J. V, ZANCHIN, V. T

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Deformed Distance Duality Relations and Supernovae Dimming by Lima, J. A. S, Cunha, J. V, Zanchin, V. T

“…The basic cosmological distances are linked by the Etherington cosmic distance duality relation, $\eta (z) = D_{L}(z)(1+z)^{-2}/D_{A}(z) \equiv 1$, where…”
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Transition redshift: new kinematic constraints from supernovae by Cunha, J. V., Lima, J. A. S.

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Constraining H0 from the Sunyaev–Zel'dovich effect, galaxy cluster X-ray data and baryon oscillations by Cunha, J. V., Marassi, L., Lima, J. A. S.

“…Estimates of H0 from the Sunyaev–Zel'dovich effect (SZE) and X-ray surface brightness of galaxy clusters depends on the underlying cosmology. In the current Λ…”
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New constraints on H_0 and Omega_M from SZE/X-RAY data and Baryon Acoustic Oscillations by Holanda, R. F. L, Cunha, J. V, Lima, J. A. S

“…The Hubble constant, $H_0$, sets the scale of the size and age of the Universe and its determination from independent methods is still worthwhile to be…”
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Accessing the Acceleration of the Universe with Sunyaev-Zel'dovich and X-ray Data from Galaxy Clusters by Holanda, R. F. L, Lima, J. A. S, Cunha, J. V

“…By using exclusively the Sunyaev-Zel'dovich effect and X-ray surface brightness data from 25 galaxy clusters in the redshift range 0.023< z < 0.784 we access…”
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Growth of Sb2Se3 thin films by selenization of RF sputtered binary precursors by Shongalova, A., Correia, M.R., Teixeira, J.P., Leitão, J.P., González, J.C., Ranjbar, S., Garud, S., Vermang, B., Cunha, J.M.V., Salomé, P.M.P., Fernandes, P.A.

“…In this work we present a method to grow Sb2Se3 thin films with a potential use as absorber layers in solar cell structures. The films were grown on several…”
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Transition Redshift: New Kinematic Constraints from Supernovae by Cunha, J. V, Lima, J. A. S

“…Mon.Not.Roy.Astron.Soc.390:210-217,2008 The transition redshift (deceleration/acceleration) is discussed by expanding the deceleration parameter to first order…”
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