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When at the beginning of 1600, Kepler arrived to work with Tycho Brahe, Longomontanus, Tycho’s principal assistant, who was working with a model for Mars that predicted with remarkable accuracy its longitudes at opposi...

Los relojes de sol constituyen excelentes instrumentos de enseñanza. Como se trata de objetos que excitan la curiosidad y muchas veces resultan visualmente atractivos, son vistos con interés por los alumnos y pueden us...

The concept of individuality in quantum mechanics shows radical differences from the concept of individuality in classical physics, as E. Schrödinger pointed out in the early steps of the theory. Regarding this fact, so...

The goal of this work is to search for Active Galactic Nuclei (AGN) in the Galactic disc at very low latitudes with |b| < 2◦. For this, we studied the five sources from the VVV near-infrared (IR) galaxy catalogue that ...

We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼1014 M from the cosmological hydrodynamical simulation Illustris and follow their...

Context. The morphological classification of galaxies is considered a relevant issue and can be approached from different points of view. The increasing growth in the size and accuracy of astronomical data sets brings wi...

It is well known that Synthetic Aperture Radar (SAR) is capable of imaging bathymetric features by detecting changes in sea surface roughness associated with bathymetry-induced surface current modulations. The high dynam...

We study the stability regions and families of periodic orbits of two planets locked in a coorbital configuration. We consider different ratios of planetary masses and orbital eccentricities; we also assume that both pla...

The structure of the solar corona is made of magnetic flux tubes or loops. Due to the lack of contrast with their environment, observing and studying coronal loops in the quiet Sun is extremely difficult. In this work we...

Projectile-induced plasmon excitation in an electron gas has been studied by several authors who proposed two possible mechanisms for these plasmons to decay. In a previous work we considered one of these mechanisms in w...

Generalized dualities had an intriguing incursion into Double Field Theory (DFT) in terms of local O(d, d) transformations. We review this idea and use the higher derivative formulation of DFT to compute the first order ...

Context. Recent observational results have found a bend in the Tully-Fisher relation in such a way that low-mass systems lie below the linear relation described by more massive galaxies. Aims. We intend to investigate th...

The influence of the collimating conditions of the incident beam on diffraction patterns produced by grazing scattering of fast atoms off crystal surfaces is studied within a semiquantum approach, called the surface init...

Synodic rotation periods and amplitudes are reported for 318 Magdalena, 455 Bruchsalia, 486 Cremona, 503 Evelyn, and 664 Judith. Fil: Colazo, Milagros Rita. Universidad Nacional de Córdoba. Facultad de Matemática, Astr...

Context. It is not yet well known whether narrow line Seyfert 1 (NLS1) galaxies follow the MBH-σast; relation found for normal galaxies. Emission lines, such as [SII] or [OIII]λ5007, have been used as a surrogate of th...

The chemical behavior of sulfur in the interstellar medium (ISM), particularly in the dense regions where stars form, is still far from being well understood. Questions such as which is the main sulfur reservoir in the I...

Higher-derivative interactions and transformation rules of the fields in the effective field theories of the massless string states are strongly constrained by space-time symmetries and dualities. Here we use an exact fo...

Fil: Rodríguez, Facundo. Universidad Nacional de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Fil: Rodríguez, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. ...

Fil: Buschini, José D. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales. Centro Interdisciplinario de Metodología de...

Fil: Rieznik, Marina. Universidad de Buenos Aires; Argentina. Fil: Rieznik, Marina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. En 1935, se fundó la Escuela Superior de Ciencias Astronómica...

Fil: Lugones, Manuel José. Universidad Nacional de Río Negro; Argentina. El libro de Jorge Bartolucci apuesta a superar la dicotomía entre el carácter universal del conocimiento científico y la naturaleza contextual...