That Which Cannot be Returned

A short article that retraces the long history of demands for returns, reparations and restitutions

Imagining Curatorial Practice after 1972

An account of the diverging understandings of the curator and its institutional set of relations that can be said to be inaugurated by Documenta 5 and the ICOM Roundtable in Santiago de Chile in 1972

The Islands

Catalogue text for the exhibition "The Islands" by Rogelio López Cuenca and Elo Vega

The Last Resort. On Terminal Tourism

This series of lectures organised around the idea of "terminal tourism" was convened for the Visual Cultures public programme in the Autumn term of academic year 23-24. Gathering major scholars including Mary Louise Pratt, Lucy Lippard, Aura Cumes, Vernadette Vicuña González, Matilde Córdoba Azcárate, Manuel Shvartzberg Carrió, Raoul Bianchi, Isaac Rose and Ralph Kiestle

Filaments in Galactic Winds Driven by Young Stellar Clusters

The starburst galaxy M82 shows a system of H$\alpha$-emitting filaments which extend to each side of the galactic disk. We model these filaments as the result of the interaction between the winds from a distribution of Super Stellar Clusters (SSCs). We first derive the condition necessary for producing a radiative interaction between the cluster winds (a condition which is met by the SSC distribution of M82). We then compute 3D simulations for SSC wind distributions which satisfy the condition for a radiative interaction, and also for distributions which do not satisfy this condition. We find that the highly radiative models, that result from the interaction of high metallicity cluster winds, produce a structure of H$\alpha$ emitting filaments, which qualitatively agrees with the observations of the M82, while the non-radiative SSC wind interaction models do not produce filamentary structures. Therefore, our criterion for radiative interactions (which depends on the mass loss rate and the terminal velocity of the SSC winds, and the mean separation between SSCs) can be used to predict whether or not an observed galaxy should have associated H$\alpha$ emitting filaments.Comment: 10 pages, 6 Figures. ApJ Accepted, August 7, 200

Self-consistency in the Projected Shell Model

The Projected Shell Model is a shell model theory built up over a deformed BCS mean field. Ground state and excited bands in even-even nuclei are obtained through diagonalization of a pairing plus quadrupole Hamiltonian in an angular momentum projected 0-, 2-, and 4-quasiparticle basis. The residual quadrupole-quadrupole interaction strength is fixed self-consistently with the deformed mean field and the pairing constants are the same used in constructing the quasiparticle basis. Taking $^{160}Dy$ as an example, we calculate low-lying states and compare them with experimental data. We exhibit the effect of changing the residual interaction strengths on the spectra. It is clearly seen that there are many $J^\pi = 0^+, 1^+, 4^+$ bandheads whose energies can only be reproduced using the self-consistent strengths. It is thus concluded that the Projected Shell Model is a model essentially with no free parameters.Comment: 13 pages, 10 figures, submitted to Nuclear Physics