J. J. Larrarte

ORCID: 0000-0003-3281-8782
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About
Contact & Profiles
Research Areas
  • Radio Astronomy Observations and Technology
  • Astrophysics and Cosmic Phenomena
  • Geophysics and Gravity Measurements
  • Astronomical Observations and Instrumentation
  • Superconducting and THz Device Technology
  • Gamma-ray bursts and supernovae
  • Adaptive optics and wavefront sensing
  • Satellite Communication Systems
  • GNSS positioning and interference
  • Astronomy and Astrophysical Research
  • Galaxies: Formation, Evolution, Phenomena
  • Scientific Research and Discoveries
  • Internet of Things and Social Network Interactions
  • Precipitation Measurement and Analysis
  • Optical Systems and Laser Technology
  • Telecommunications and Broadcasting Technologies
  • Wireless Sensor Networks and IoT
  • Particle Detector Development and Performance

Instituto Argentino de Radioastronomía
2000-2021

Consejo Nacional de Investigaciones Científicas y Técnicas
2016

Authorised Association Consortium
2013

We present the final data release of high sensitivity λ 21-cm neutral hydrogen survey sky south . A total 50 980 positions lying on a galactic coordinate grid with points spaced by () = (05/cos b, 05) were observed 30-m dish Instituto Argentino de Radioastronomía (IAR). The angular resolution is HPBW 05 and velocity coverage spans interval -450 to +400 (LSR). 1.27 rms noise entire database 0.07 K. are corrected for stray radiation converted brightness temperatures.

10.1051/0004-6361:20041863 article EN Astronomy and Astrophysics 2005-08-29

This paper reports on a high sensitivity λ 21-cm neutral hydrogen survey of the sky south -25°. A total 50980 positions lying galactic coordinate grid with points spaced by ( l, b) = (05/cos b, 05), were observed 30 m dish Instituto Argentino de Radioastronomía (IAR). The angular resolution is HPBW 30', and velocity coverage spans interval -450 to +400 (LSR). 1.27 final rms noise entire database ~ 0.07 K. brightness temperature scale accurate 5%.

10.1051/aas:2000134 article EN Astronomy and Astrophysics Supplement Series 2000-02-01

We describe the equipment, observational method and reduction procedure of an absolutely calibrated radio continuum survey South Celestial Hemisphere at a frequency 1420 MHz. These observations cover area for declinations less than . The sensitivity is about 50 mK TB (full beam brightness) angular resolution (HPBW) , which matches existing northern sky same frequency.

10.1051/0004-6361:20010088 article EN Astronomy and Astrophysics 2001-03-01

We present briefly the LLAMA sub-mm radiotelescope, a joint project of Argentina and Brazil, being mounted in Andes, Argentina, at 4800 m altitude. Here we focus on activities that are going mostly under responsibility like high frequency receivers, parts back-end electronics, optical system telescope to bring radiation equipment needed for integration verification phase (optical holography) computation system.The main scientific applications planned dscribed. also report program with BRICS...

10.1590/0001-3765202120200846 article EN cc-by Anais da Academia Brasileira de Ciências 2021-01-01

The Cherenkov Telescopes Array (CTA) is planned to be an Observatory for very high energy gamma ray astronomy and will consist of several tens telescopes which account a reflective surface more than 10000 m$^2$. mirrors these formed by set facets. Different technological solutions, fast cost efficient production light-weight mirror facets are under test inside the CTA Consortium. Most them involve composite structures whose behavior real observing conditions not yet fully tested. An outdoor...

10.48550/arxiv.1307.4965 preprint EN other-oa arXiv (Cornell University) 2013-01-01

10.1016/j.nima.2016.05.106 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2016-06-14
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