1.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Consejo Nacional de Investigaciones Científicas y TécnicasAR395 papers
- Centre National de la Recherche ScientifiqueFR376 papers
- University of ArizonaUS368 papers
- Pontificia Universidad Católica de ChileCL356 papers
- The University of Texas at AustinUS355 papers
- Universidad Nacional de La PlataAR354 papers
- Universidad Andrés BelloCL353 papers
- Universidade de São PauloBR347 papers
- University of BolognaIT343 papers
- University of CambridgeGB330 papers
- University of GenevaCH329 papers
- University of MichiganUS327 papers
11 papers · 1 filter
The periodicity of the eta Carinae events
A. Damineli, M. F. Corcoran, D. J. Hillier +14
Extensive spectral observations of eta Carinae over the last cycle, and particularly around the 2003.5 low excitation event, have been obtained. The variability of both narrow and…
A multispectral view of the periodic events in eta Carinae
A. Damineli, D. J. Hillier, M. F. Corcoran +13
A full description of the 5.5-yr low excitation events in Eta Carinae is presented. We show that they are not as simple and brief as previously thought, but a combination of two co…
The Spitzer Survey of the Small Magellanic Cloud: Discovery of Embedded Protostars in the HII Region NGC 346
Joshua D. Simon, Alberto D. Bolatto, Barbara A. Whitney +6
We use Spitzer Space Telescope observations from the Spitzer Survey of the Small Magellanic Cloud (S3MC) to study the young stellar content of N66, the largest and brightest HII re…
Geysers in the Lagoon: new Herbig-Haro objects in M8
Rodolfo H. Barbá, Julia I. Arias
Aims: We search for direct evidence of ongoing star formation by accretion in the Lagoon Nebula (M8), using optical wide-field narrow-band imaging obtained at La Silla Observatory.…
Witnessing the formation of a galaxy cluster at z=0.485: optical and X-ray properties of RX J1117.4+0743 ([VMF 98] 097)
E. R. Carrasco, E. S. Cypriano, G. B. Lima Neto +4
We present a multiwavelength study of the poor cluster RX J1117.4+0743 ([VMF 98] 097) at z=0.485, based on GMOS/Gemini South g', r' photometry and spectroscopy, and XMM-Newton obse…
Parallelism Structure on a Smooth Manifold
V. V. Fernandez, A. M. Moya, E. Notte-Cuello +1
Using the theory of extensors developed in a previous paper we present a theory of the parallelism structure on arbitrary smooth manifold. Two kinds of Cartan connection operators…
Duality Products of Multivectors and Multiforms, and Extensors
V. V. Fernandez, A. M. Moya, E. Notte-Cuello +1
In this paper we study in details the properties of the duality product of multivectors and multiforms (used in the definition of the hyperbolic Clifford algebra of multivefors) an…
The Square of the Dirac and spin-Dirac Operators on a Riemann-Cartan Space(time)
E. A. Notte-Cuello, W. A. Rodrigues, Q. A. G. de Souza
In this paper we introduce the Dirac and spin-Dirac operators associated to a connection on Riemann-Cartan space(time) and standard Dirac and spin-Dirac operators associated with a…
ISOCAM Mid-infrared spectroscopy and NIR photometry of the HII complex N4 in LMC
A. Contursi, M. Rubio, M. Sauvage +3
[Abridged] We present the analysis of ISOCAM-CVF and NIR photometry data of the HII region complex N4 in LMC. The aim is twofold: 1) to study the connection between the ISM and the…
Bogolyubov approximation for diagonal model of an interacting Bose gas
M. Corgini, D. P. Sankovich
We study, using the Bogolyubov approximation, the thermodynamic behaviour of a superstable Bose system whose energy operator in the second-quantized form contains a nonlinear expre…
The Effective Lorentzian and Teleparallel Spacetimes Generated by a Free Electromagnetic Field
Eduardo Notte-Cuello, Roldao da Rocha, Waldyr A. Rodrigues
In this paper we show that a free electromagnetic field living in Minkowski spacetime generates an effective Weitzenbock or an effective Lorentzian spacetime whose properties arede…