Científicos brasileños participan en un Proyecto Internacional de Astronomía

An agreement signed between the Inter – Laboratory e-Astronomy (line), the National Astrophysics Laboratory (LNA), RNP and the Academic Network in São Paulo (ANSP) allow participation of Brazilian researchers in the project Large Synoptic Survey Telescope (LSST by its acronym in English).

The Memorandum of Understanding signed in September 2015 by the institutions foresees investments in fiber optic connections, expanding the connection between South America and North America. In addition, a group of 50 Brazilian researchers will participate in the project, considered revolutionary for astronomy.

This project presents great challenges in the area of ​​Information Technology to manage the transfer, processing, storage, analysis and scientific exploitation of the enormous volume of data to be generated

The LSST is a telescope being built in Cerro Pachon, in Chile, and is expected to become operational in 2022. With a total investment of one billion reais, the LSST will have the capacity to map nearly half the sky in six filters for a period of ten years. The telescope 8.4 meters in diameter covering an area of ​​nearly 10 square degrees can record entire regions of the sky. Your camera consists of a mosaic of CCD pixels 3.2 billion, and each exhibition covers an area corresponding to 40 times the size of the full Moon. Each night will be accumulated 15 terabytes (TB) of data, which must be transmitted to different centers for reduction and analysis, including Brazil. The system will offer astronomers a dynamic view of the universe, where variations of position or flow of celestial objects at intervals of a few nights will be recorded.

LSST is expected to generate 10 million alerts of these variations each night. These are classified, and the most interesting cases will be observed in other telescopes for further analysis. At the end of ten years, this exploration will have collected about 37 billion stars and galaxies, exploring an unprecedented volume of space and generating 100 petabytes (PB) of products.

With data from LSST, scientists explore the solar system, study the structure of our galaxy and the formation and evolution of structures in the Universe, and to determine the properties of matter and dark energy that extend across the universe, the latter being responsible for the accelerated expansion.

This project presents great challenges in the area of ​​Information Technology to manage the transfer, processing, storage, analysis and scientific exploitation of the enormous volume of data that will be generated continuously. The team of Brazilian researchers will also participate in the search for new solutions for the areas of communication networks, high-performance processing and database management.

Infrastructure connectivity through fiber optic provided by the RNP and Ansp allow data transfer between Chile and the United States through Brazil reaching rates of 100 gigabits per second (Gbps). The Ansp be responsible for the operation of the connection between Santos (SP) and Boca Raton (Florida, USA). RNP will provide the connection between Santiago (Chile) and São Paulo (SP). This partnership between Ansp and RNP was recognized by the Board of Directors of the LSST as consideration for the participation of ten researchers seniors and four juniors associated with each, totaling 50 researchers with full access to the survey data. Under the terms of the agreement, online and LNA are responsible for organizing the selection process of this group of Brazilian researchers, called Brazilian Participation Group LSST (BPG -LSST).

Published: 01/2016

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