1.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidad Nacional Autónoma de MéxicoMX165 papers
- Fermi National Accelerator LaboratoryUS154 papers
- Centre National de la Recherche ScientifiqueFR114 papers
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMX106 papers
- University of PittsburghUS102 papers
- Centro Brasileiro de Pesquisas FísicasBR97 papers
- University of RochesterUS89 papers
- University of MichiganUS84 papers
- University College LondonGB75 papers
- Instituto Politécnico NacionalMX72 papers
- University of FloridaUS69 papers
- University of MilanIT69 papers
139 papers · 1 filter
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…
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…
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.…
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…
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…
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…
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…
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…
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…
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…
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…
On the dynamics of a quadratic scalar field potential
L. Arturo Urena-Lopez, Mayra J. Reyes-Ibarra
We review the attractor properties of the simplest chaotic model of inflation, in which a minimally coupled scalar field is endowed with a quadratic scalar potential. The equations…
A Chandra Observation of Abell 13: Investigating the Origin of the Radio Relic
Adrienne M. Juett, Craig L. Sarazin, Tracy E. Clarke +7
We present results from the Chandra X-ray observation of Abell 13, a galaxy cluster that contains an unusual noncentral radio source, also known as a radio relic. This is the first…
Multiple Sources toward the High-mass Young Star S140 IRS1
M. A. Trinidad, J. M. Torrelles, L. F. Rodriguez +1
S140 IRS1 is a remarkable source where the radio source at the center of the main bipolar molecular outflow in the region is elongated perpendicular to the axis of the outflow, an…
Detection of GRB 060927 at z = 5.47: Implications for the Use of Gamma-Ray Bursts as Probes of the End of the Dark Ages
A. E. Ruiz-Velasco, H. Swan, E. Troja +54
We report on follow-up observations of the GRB 060927 using the ROTSE-IIIa telescope and a suite of larger aperture ground-based telescopes. An optical afterglow was detected 20 s…
VLA H53alpha observations of the central region of the Super Star Cluster Galaxy NGC 5253
C. A. Rodriguez-Rico, W. M. Goss, J. L. Turner +1
We present observations in the H53alpha line and radio continuum at 43 GHz carried out with the VLA in the D array (2'' angular resolution) toward the starburst galaxy NGC 5253. VL…
Current status of the CATS database
O. V. Verkhodanov, S. A. Trushkin, H. Andernach +1
We describe the current status of CATS, a publicly accessible database (web-server http://cats.sao.ru) allowing one to search in hundreds of catalogs of astronomical objects discov…
The strong transformation of spiral galaxies infalling into massive clusters at z~0.2
L. Cortese, D. Marcillac, J. Richard +8
We describe two peculiar galaxies falling into the massive galaxy clusters Abell 1689 (z~0.18) and 2667 (z~0.23) respectively. Hubble Space Telescope images show extraordinary trai…
Evidence for tidal interaction and merger as the origin of galaxy morphology evolution in compact groups
R. Coziol, I. Plauchu-Frayn
We present the results of a morphological study based on NIR images of 25 galaxies, with different levels of nuclear activity, in 8 Compact Groups of Galaxies (CGs). We perform ind…
A critical test of empirical mass loss formulae applied to individual giants and supergiants
Klaus-Peter Schroder, Manfred Cuntz
To test our new, improved Reimers-type mass-loss relation, given by Schroder & Cuntz in 2005 (ApJL 630, L73), we take a look at the best studied galactic giants and supergiants - p…
Low Luminosity Activity in Hickson Compact Groups
M. A. Martinez, A. del Olmo, J. Perea +1
With the aim of studying the influence of environment on the nuclear activity of galaxies, we have selected a well defined sample of 65 Compact Groups of galaxies with concordant r…
Astronomical Data Management
Ray Norris, Heinz Andernach, Guenther Eichhorn +6
We present a summary of the major contributions to the Special Session on Data Management held at the IAU General Assembly in Prague in 2006. While recent years have seen enormous…
The highly obscured region around PKS1343-601 - I. Galactic interstellar extinctions using DENIS galaxy colours
A. C. Schroeder, G. A. Mamon, R. C. Kraan-Korteweg +1
The highly obscured radio-bright galaxy PKS1343-601 (l=309.7, b=+1.8) has been suspected to mark the centre of a hitherto unknown cluster in the Great Attractor region. As such it…
Early-type stars in the young open cluster IC1805. II. The probably single stars HD15570 and HD15629, and the massive binary/triple system HD15558
M. De Becker, G. Rauw, J. Manfroid +1
Aims: We address the issue of the multiplicity of the three brightest early-type stars of the young open cluster IC1805, namely HD15570, HD15629 and HD15558. Methods: For the three…