An ALMA beamformer for VLBI and phased array science

2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011

Volumn , Issue , 2011, Pages

  Doeleman, Sheperd ^a   Webber, John ^b   Lacasse, Rich ^b   Escoffier, Ray ^b   Inoue, Makoto ^c   Alef, Walter ^d   Honma, Mareki ^e   Nagar, Neil ^f   Baudry, Alain ^g   Kern, Jeff ^h   Greenberg, Joseph ^b   Saez, Alejandro ^b   Crew, Geoff ^a   Cappallo, Roger ^a  

^a MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^b NATIONAL RADIO ASTRONOMY OBSERVATORY   (United States)

^c NATIONAL TAIWAN UNIVERSITY   (Taiwan)

^d MAX PLANCK INSTITUT FÜR RADIOASTRONOMIE   (Germany)

^e NATIONAL ASTRONOMICAL OBSERVATORY OF JAPAN   (Japan)

^f UNIVERSITY OF CONCEPCIÓN   (Chile)

^g OBSERVATOIRE DE BORDEAUX   (France)

^h NATIONAL RADIO ASTRONOMY OBSERVATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACCRETION FLOW; ANGULAR RESOLUTION; BEAM FORMERS; BLACK HOLES; CONSTRUCTION SCHEDULES; EFFECTIVE APERTURE; EVENT HORIZON; GALACTIC CENTER; HIGH FREQUENCY; HIGH SENSITIVITY; HOTSPOTS; MAGNETARS; MASSIVE BLACK HOLES; MILKY WAYS; SCHWARZSCHILD; SCIENCE PROJECTS; SHORT WAVELENGTHS; TIME RESOLUTION; TIME VARIABLE;

STARS;

GRAVITATION;

EID: 81255202760     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/URSIGASS.2011.6051273     Document Type: Conference Paper

References (3)

1. S. S. Doeleman et al., "Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre," Nature, 455, 2008, pp. 78-80.
2. V. L. Fish et al., "1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-variable Emission on Event Horizon Scales," Astroph. J., 727, 2011, L36.
3. Escoffier, R. P., Comoretto, G., Webber, J. C., Baudry, A., Broadwell, C. M., Greenberg, J. H., Treacy, R. R., Cais, P., Quertier, B., Camino, P., Bos, A. & Gunst, A. W., "The ALMA Correlator," A&A, 462, 2007, p.801.