output
19932026
most citedThe Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory

1.4k citations

Showing 2008Show all

20 papers · 1 filter

hep-th2008★ 2 cited

Towards noncommutative supersymmetric quantum cosmology

W. Guzmán, M. Sabido, J. Socorro

Using the factorization approach of quantum mechanics, we obtain a family of iso-spectral scalar potentials for noncommutative quantum cosmology. The family we build is based on a…

gr-qc2008★ 34 cited

On Noncommutative Minisuperspace and the Friedmann equations

W. Guzmán, M. Sabido, J. Socorro

In this paper we present noncommutative version of scalar field cosmology. We find the noncommutative Friedmann equations as well as the noncommutative Klein-Gordon equation. Inter…

astro-ph2008★ 43 cited

A multiwavelength investigation of the massive eclipsing binary Cyg OB2 #5

N. Linder, G. Rauw, J. Manfroid +5

The properties of the early-type binary Cyg OB2 #5 have been debated for many years and spectroscopic and photometric investigations yielded conflicting results. We have attempted…

astro-ph2008★ 25 cited

Habitability of Super-Earth Planets around Other Suns: Models including Red Giant Branch Evolution

W. von Bloh, M. Cuntz, K. -P. Schroeder +2

The unexpected diversity of exoplanets includes a growing number of super- Earth planets, i.e., exoplanets with masses of up to several Earth masses and a similar chemical and mine…

gr-qc2008★ 278 cited

Dynamics of interacting dark energy

Gabriela Caldera-Cabral, Roy Maartens, L. Arturo Urena-Lopez

Dark energy and dark matter are only indirectly measured via their gravitational effects. It is possible that there is an exchange of energy within the dark sector, and this offers…

astro-ph2008★ 34 cited

Galaxy evolution in Abell 85: I. Cluster substructure and environmental effects on the blue galaxy population

H. Bravo-Alfaro, C. A. Caretta, C. Lobo +2

This series of papers explores the evolution of late-type galaxies in the rich cluster Abell 85. Here, we revisit the complex dynamical state of A 85 by using independent methods.…

astro-ph2008★ 12 cited

HCN(1-0) enhancement in the bar of NGC 2903

S. Leon, S. Jeyakumar, D. Perez-Ramirez +3

We have mapped the \hcn emission from two spiral galaxies, NGC2903 and NGC3504 to study the gas properties in the bars. The HCN(1-0) emission is detected in the center and along th…

hep-ph2008★ 4 cited

A Consistent Scenario for B to PS Decays

D. Delepine, J. L. Lucio M., J. A. Mendoza S. +1

We consider B to PS decays where P stands for pseudoscalar and S for a heavy (~1500 MeV) scalar meson. We achieve agreement with available experimental data -- which includes a two…

hep-th2008★ 27 cited

Twisted Covariant Noncommutative Self-dual Gravity

S. Estrada-Jimenez, H. Garcia-Compean, O. Obregon +1

A twisted covariant formulation of noncommutative self-dual gravity is presented. The formulation for constructing twisted noncommutative Yang-Mills theories is used. It is shown t…

astro-ph2008★ 2 cited

Towards a realistic axion star

J. Barranco, A. Bernal

In this work we estimate the radius and the mass of a self-gravitating system made of axions. The quantum axion field satisfies the Klein-Gordon equation in a curved space-time and…

astro-ph2008★ 38 cited

Spectroscopic and photometric variability of the O9.5Vp star HD93521

G. Rauw, M. De Becker, H. van Winckel +7

The line profile variability and photometric variability of the O9.5 Vp star HD93521 are examined in order to establish the properties of the non-radial pulsations in this star. Fo…

nucl-th2008★ 10 cited

Chiral Unitary Dynamics of Hadrons and Hadrons in a Nuclear Medium

E. Oset, L. S. Geng, D. Gamermann +7

In this talk I summarize recent findings around the description of axial vector mesons as dynamically generated states from the interaction of pseudoscalar mesons and vector mesons…

gr-qc2008★ 52 cited

Bose-Einstein condensation of relativistic Scalar Field Dark Matter

L. Arturo Ureña-López

Standard thermodynamical results of ideal Bose gases are used to study the possible formation of a cosmological Bose-Einstein condensate in Scalar Field Dark Matter models; the mai…

astro-ph2008★ 81 cited

Dust-driven Winds and Mass Loss of C-rich AGB Stars with subsolar Metallicities

A. Wachter, J. M. Winters, K. -P. Schröder +1

We investigate the mass loss of highly evolved, low- and intermediate mass stars and stellar samples with subsolar metallicity. We give a qualitative as well as quantitative descri…

astro-ph2008★ 7 cited

Evidence of Turbulence-like Universality on the Formation of Galaxy-sized Dark Matter Haloes

Cesar A. Caretta, Reinaldo R. Rosa, Haroldo F. de Campos Velho +2

Although the theoretical understanding of the nonlinear gravitational clustering has greatly advanced in the last decades, in particular by the outstanding improvement on numerical…

astro-ph2008★ 60 cited

Triple unification of inflation, dark matter, and dark energy using a single field

Andrew R. Liddle, Cédric Pahud, L. Arturo Ureña-López

We construct an explicit scenario whereby the same material driving inflation in the early Universe can comprise dark matter in the present Universe, using a simple quadratic poten…

astro-ph2008★ 8 cited

Detection of a hot intergalactic medium in the spiral-only compact group SCG0018-4854

G. Trinchieri, A. Iovino, E. Pompei +4

AIMS: Compact groups of galaxies are excellent laboratories for studying galaxy interactions and their effects on the evolution of galaxies. In particular, dynamically young system…

nlin.PS2008★ 11 cited

Soliton structures in a molecular chain model with saturation

E. Villagran, J. Socorro, Ricardo Garcia-Salcedo +1

In the present work, we study, by means of a one-dimensional lattice model, the collective excitations corresponding to intra molecular ones of a chain like proteins. It is shown t…

astro-ph2008★ 20 cited

Deficiency of Broad Line AGNs in Compact Groups of Galaxies

M. A. Martinez, A. del Olmo, R. Coziol +1

Based on a new survey of AGN activity in Compact Groups of Galaxies, we report a remarkable deficiency of Broad Line AGNs as compared to Narrow Line AGNs. The cause of such deficie…

nucl-th2008★ 145 cited

X(2175) as a resonant state of the system

A. Martínez Torres, K. P. Khemchandani, L. S. Geng +2

We perform a Faddeev calculation for the three mesons system, , taking the interaction between two pseudoscalar mesons and between a vector and a pseudoscalar meson fro…