Euclid Near Infrared Spectrometer and Photometer instrument concept and first test results obtained for different breadboards models at the end of phase C

The Euclid mission objective is to understand why the expansion of the Universe is accelerating through by mapping the geometry of the dark Universe by investigating the distance-redshift relationship and tracing the evolution of cosmic structures. The Euclid project is part of ESA's Cosmic Vision program with its launch planned for 2020 (ref [1]). The NISP (Near Infrared Spectrometer and Photometer) is one of the two Euclid instruments and is operating in the near-IR spectral region (900- 2000nm) as a photometer and spectrometer. The instrument is composed of: - a cold (135K) optomechanical subsystem consisting of a Silicon carbide structure, an optical assembly (corrector and camera lens), a filter wheel mechanism, a grism wheel mechanism, a calibration unit and a thermal control system - a detection subsystem based on a mosaic of 16 HAWAII2RG cooled to 95K with their front-end readout electronic cooled to 140K, integrated on a mechanical focal plane structure made with molybdenum and aluminum. The detection subsystem is mounted on the optomechanical subsystem structure - a warm electronic subsystem (280K) composed of a data processing / detector control unit and of an instrument control unit that interfaces with the spacecraft via a 1553 bus for command and control and via Spacewire links for science data This presentation describes the architecture of the instrument at the end of the phase C (Detailed Design Review), the expected performance, the technological key challenges and preliminary test results obtained for different NISP subsystem breadboards and for the NISP Structural and Thermal model (STM)

Mapping the caribbean scientific collaboration.: Can mobility of researchers help?

International audienceCaribbean communities were mobile long before European colonization and their modes of production and culture were evolving by frequent exchanges among the Caribbean islanders and the Northern coast of South America. However, the region has not fully benefited by the advent of the five Technological Revolutions since 1771. Moreover, in the last two decades of the XX century, the Caribbean Small Islands Developing States (SIDS) were severely affected by the migration of their tertiary educated population towards the developed world, a trend that continues today.Bibliometric approaches have been used to identify not only the brain drain, but also how the contemporary knowledge is created through the international network of scientific collaboration. In this study we use the Scopus bibliographic database to analyse the scientific output and international collaboration of the 13 Caribbean SIDS in the period between 2000 and 2018. The main scientific collaborator of the region as a country is United States, except for Cuba, which is Spain. Consequently, North America, Europe and the Caribbean islands share the higher proportion of co-authoring articles. In terms of institutional representation, the University of West Indies has, in aggregate, the highest output with 11,497 documents from 11 out of 13 SIDS. The main contributor as a country is Jamaica (5018), followed by Trinidad and Tobago. A group of high output academic institutions are University of Havana (4979), followed by Universidad Central de Las Villas, Institute of Tropical Medicine Pedro Kouri and the Centre of Genetic Engineering and Biotechnology, all of them in Cuba and with no significant collaboration with the rest of the region.In previous bibliometric studies we found that the scientists working abroad has the potential to become agents for development of the home country and region, diversifying the scientific collaboration