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  • richardmitnick 3:27 pm on June 26, 2019 Permalink | Reply
    Tags: , , , , ngVLA new Radio Astronomical instruments,   

    From SKA: “SKA and ngVLA projects explore scientific alliance 

    SKA South Africa


    From SKA

    1
    Artists’ impressions of the Square Kilometre Array (left), which will operate from 50 MHz – 14 GHz, and the Next Generation Very Large Array (left), which will cover a frequency range from 1.2 – 116 GHz.

    26 June 2019 –

    3
    NRAO ngVLA

    The Next Generation Very Large Array (ngVLA) and Square Kilometre Array (SKA) projects are currently investigating a process to establish a scientific alliance that may result in an exchange of observing time across an unprecedented suite of cutting-edge telescopes spanning more than 3 orders of magnitude in observing frequency (50MHz – 116 GHz)

    Such an alliance will yield unparalleled capabilities for investigating the most pressing astrophysical problems of our time, including the formation and evolution of the Universe, galaxies, stars and planets. While many details about the nature of any such scientific alliance remain to be resolved, both Observatories agreed they should be ambitious in exploring the possibilities of this type of arrangement in future.

    After a productive initial meeting, we look forward to continuing the alliance discussions and meeting again in approximately 18 months, at which time SKA should have begun construction activities and ngVLA will be continuing design/development activities. One tangible outcome of the first meeting was an agreement to hold a joint SKA/ngVLA science meeting in 2021, details to be announced in due course.

    See the full article here .

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    SKA ASKAP Pathefinder Telescope

    SKA Meerkat telescope, 90 km outside the small Northern Cape town of Carnarvon, SA


    SKA Meerkat Telescope

    Murchison Widefield Array,SKA Murchison Widefield Array, Boolardy station in outback Western Australia, at the Murchison Radio-astronomy Observatory (MRO)


    SKA Murchison Wide Field Array

    SKA Hera at SKA South Africa

    SKA Pathfinder – LOFAR location at Potsdam via Google Images

    About SKA

    The Square Kilometre Arraywill be the world’s largest and most sensitive radio telescope. The total collecting area will be approximately one square kilometre giving 50 times the sensitivity, and 10 000 times the survey speed, of the best current-day telescopes. The SKA will be built in Southern Africa and in Australia. Thousands of receptors will extend to distances of 3 000 km from the central regions. The SKA will address fundamental unanswered questions about our Universe including how the first stars and galaxies formed after the Big Bang, how dark energy is accelerating the expansion of the Universe, the role of magnetism in the cosmos, the nature of gravity, and the search for life beyond Earth. Construction of phase one of the SKA is scheduled to start in 2016. The SKA Organisation, with its headquarters at Jodrell Bank Observatory, near Manchester, UK, was established in December 2011 as a not-for-profit company in order to formalise relationships between the international partners and centralise the leadership of the project.

    The Square Kilometre Array (SKA) project is an international effort to build the world’s largest radio telescope, led by SKA Organisation. The SKA will conduct transformational science to improve our understanding of the Universe and the laws of fundamental physics, monitoring the sky in unprecedented detail and mapping it hundreds of times faster than any current facility.

    Already supported by 10 member countries – Australia, Canada, China, India, Italy, New Zealand, South Africa, Sweden, The Netherlands and the United Kingdom – SKA Organisation has brought together some of the world’s finest scientists, engineers and policy makers and more than 100 companies and research institutions across 20 countries in the design and development of the telescope. Construction of the SKA is set to start in 2018, with early science observations in 2020.

     
  • richardmitnick 2:35 pm on December 31, 2017 Permalink | Reply
    Tags: , , , , , ngVLA new Radio Astronomical instruments, ,   

    From NRAO: “Next-generation U.S. Radio Telescope Development Begins” 

    NRAO Icon
    National Radio Astronomy Observatory

    NRAO Banner

    September 14, 2017
    Dave Finley, Public Information Officer
    (575) 835-7302
    dfinley@nrao.edu

    Planning begins for next leap forward in research capability.

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    Artist’s conception of the multi-antenna Next generation VLA (ngVLA). Credit: Bill Saxton, NRAO/AUI/NSF

    The National Radio Astronomy Observatory (NRAO) and Associated Universities, Inc. (AUI) are launching a new initiative to design a next-generation radio telescope with scientific capabilities far beyond those provided by any existing or currently proposed observatory.

    Building on the success of one of the National Science Foundation’s (NSF) flagship observatories, the Karl G. Jansky Very Large Array (VLA), NRAO and AUI are beginning a two-year project to explore the science opportunities, design concepts, and technologies needed to construct a new class of radio telescope.

    NRAO/Karl V Jansky VLA, on the Plains of San Agustin fifty miles west of Socorro, NM, USA, at an elevation of 6970 ft (2124 m)

    This proposed array, consisting of more than 200 antennas, would extend across the desert southwest of the United States and into northern Mexico.

    Currently dubbed the next-generation Very Large Array, or ngVLA for short, the new research facility will be designed to provide the next leap forward in our understanding of planets, galaxies, black holes, and fundamental physics.

    “The capabilities of the ngVLA are the only means of answering a broad range of critical scientific questions in modern astronomy,” said NRAO Director Tony Beasley. “The ngVLA will open a new window on the Universe, and its scientific and technological innovations promise great contributions to society across many dimensions, including economic development, education, and others,” he added.

    Funding for the new initiative was provided by the National Science Foundation’s Division of Astronomical Sciences, allowing NRAO to re-profile $11M in funding planned for instrument development over a longer time period into a focused two-year effort. This large telescope initiative was included in AUI’s successful proposal to the NSF to manage NRAO over the decade just starting, and NSF’s decision allows NRAO to accelerate the early design studies. This will enable the ngVLA concept to be more fully developed for the next U.S. astronomy Decadal Survey, commencing in 2019-2020, where all major new instruments and capabilities are considered by the research community. A key use of the funding will be exploration of the high-performance antennas that will collect the astronomical signals for analysis.

    “We’re very eager to get this effort underway,” said ngVLA Project Scientist Eric Murphy. “Along with partners and advisors from throughout the astronomical community, we look forward to the challenge of meeting the research needs of the coming decades,” he added.

    “Associated Universities, Inc., recognizes ngVLA as the future of radio astronomy in North America, and we are excited to start developing this new concept,” said AUI President Ethan Schreier. “New Mexico is home to many great astronomical facilities, and ngVLA will continue this proud tradition,“ he said.

    NSF’s Division of Astronomical Sciences is responsible for funding the VLA, the North American share of the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, and other ground-based astronomical observatories. NSF is an independent federal agency that supports research and education in all non-medical fields of science, and in 2017 provided $75 Million to NRAO to support radio astronomy research in the U.S. and in Chile.

    In New Mexico, planning has begun for the design effort. Last June, NRAO hosted a workshop in Socorro on requirements and concepts for the new telescope. The workshop was attended by astronomers from a variety of specialties and institutions. In the near future, NRAO anticipates working with university and industrial partners as the project advances.

    More information on ngVLA can be found here and here.

    The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc

    See the full article here .

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    NRAO/Karl V Jansky VLA, on the Plains of San Agustin fifty miles west of Socorro, NM, USA

    The NRAO operates a complementary, state-of-the-art suite of radio telescope facilities for use by the scientific community, regardless of institutional or national affiliation: the Very Large Array (VLA), and the Very Long Baseline Array (VLBA)*.

    ESO/NRAO/NAOJ ALMA Array in Chile in the Atacama at Chajnantor plateau, at 5,000 metres

    Access to ALMA observing time by the North American astronomical community will be through the North American ALMA Science Center (NAASC).

    NRAO VLBA

    NRAO VLBA

    *The Very Long Baseline Array (VLBA) comprises ten radio telescopes spanning 5,351 miles. It’s the world’s largest, sharpest, dedicated telescope array. With an eye this sharp, you could be in Los Angeles and clearly read a street sign in New York City!

    Astronomers use the continent-sized VLBA to zoom in on objects that shine brightly in radio waves, long-wavelength light that’s well below infrared on the spectrum. They observe blazars, quasars, black holes, and stars in every stage of the stellar life cycle. They plot pulsars, exoplanets, and masers, and track asteroids and planets.

    And the future Expanded Very Large Array (EVLA).

     
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