Long Wavelength Array


The Long Wavelength Array (LWA) is a radio telescope in central New Mexico. It began preliminary tests of the hardware in 2011, and began regular operations in late 2015. [1] It is one of the few observatories to utilize relatively low frequencies (10-88 MHz), and is used to study relativistic particles, cosmic evolution, astrophysical plasma, decametric radio emissions from Jupiter-like extrasolar planets, and giant flares from magnetars.[2]

Long Wavelength Array
Location(s)New Mexico
Coordinates34°04′N 107°38′W / 34.07°N 107.63°W / 34.07; -107.63Coordinates: 34°04′N 107°38′W / 34.07°N 107.63°W / 34.07; -107.63 Edit this at Wikidata
OrganizationNational Radio Astronomy Observatory Edit this on Wikidata
Wavelength3.4 m (88 MHz)–30 m (10.0 MHz)
Built2009– (2009–) Edit this at Wikidata
First light7 April 2011 Edit this on Wikidata
Telescope stylephased array
radio telescope Edit this on Wikidata
Number of telescopesEdit this on Wikidata
Diameter100 yd (300 ft 0 in) Edit this at Wikidata
Collecting area6,500 m2 (70,000 sq ft) Edit this at Wikidata
Websitelwa.phys.unm.edu Edit this at Wikidata
Long Wavelength Array is located in the United States
Long Wavelength Array
Location of Long Wavelength Array

As of 2011 it consisted of a single station with 256 antennas. The longer term objective of the project is to build 53 stations in total,[when?] with a total of 13,000 dipole antennas[3] strategically placed in an area nearly 400 kilometres (250 mi) in diameter, to scan the sky at HF and VHF frequencies. Each antenna stands about 1.5 metres (5 ft) high and about 2.7 metres (9 ft) across the base.[4] The first station, located adjacent to the NRAO's VLA, consists of 256 antennas and was completed in December 2009. It was dedicated in April 2010, and routine operations began in 2011.[3] The second station (LWA2) was under construction about 19 km (12 mi) away as of 2011.[5][needs update]

The project is a collaboration of UNM, VT, LANL, JPL, NRL, UI, BIRS, NRAO and AFRL.[6][clarification needed]

See alsoEdit


  1. ^ "ScienceCasts:Listening to the Stars". NASA Science. NASA. Archived from the original on 20 May 2011. Retrieved 18 February 2016.
  2. ^ Ellingson, Steven (2009), "The Long Wavelength Array" (PDF), Proceedings of the IEEE, 97 (8): 1421–1430, Bibcode:2009IEEEP..97.1421E, doi:10.1109/JPROC.2009.2015683, S2CID 8999112
  3. ^ a b "JPL Searching for Galactic Flashes: "Exploding Black Holes or Transmissions by Other Civilizations?"". The Daily Galaxy. 2011-05-03. Archived from the original on 2011-05-07. Retrieved 2011-05-04.
  4. ^ Vega, Priscilla (2011-01-26). "An Astronomer's Field of Dreams". JPL. Retrieved 2011-05-04.
  5. ^ "Current News". University of New Mexico. June 3, 2011. Retrieved 16 June 2011.
  6. ^ "Welcome to the LWA!". UNM. Retrieved 2011-06-16.