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The Atacama Large Millimeter/submillimeter Array remains the largest mm radio interferometer observatory world-wide. It is now conducting its 11th observing cycle. In our previous paper presented at this conference series in 2020, we…

Instrumentation and Methods for Astrophysics · Physics 2024-08-09 Dirk Petry , María Díaz Trigo , Rüdiger Kneissl , Ignacio Toledo , Atsushi Miyazaki , Toshinobu Takagi , Ashley Barnes , Francesca Bonanomi

We present imaging simulations of the Sunyaev-Zel'dovich effect of galaxy clusters for the Atacama Large Millimeter/submillimeter Array (ALMA) including the Atacama Compact Array (ACA). In its most compact configuration at 90GHz, ALMA will…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 K. Yamada , T. Kitayama , S. Takakuwa , D. Iono , T. Tsutsumi , K. Kohno , M. Takizawa , K. Yoshikawa , T. Akahori , E. Komatsu , Y. Suto , H. Matsuo , R. Kawabe

We report observations of solar spicules at millimeter wavelengths (mm-$\lambda$) using the Atacama Large Millimeter/submillimeter Array (ALMA). These are supplemented by observations in optical (O), ultraviolet (UV) and extreme ultraviolet…

Solar and Stellar Astrophysics · Physics 2025-04-09 T. S. Bastian , C. Alissandrakis , A. Nindos , M. Shimojo , S. M. White

The rich information on (sub)millimeter dust continuum emission from distant galaxies in the public Atacama Large Millimeter/submillimeter Array (ALMA) archive is contained in thousands of inhomogeneous observations from individual PI-led…

Interferometric observations of the Sun with ALMA provide valuable diagnostic tools for studying the small-scale dynamics of the solar atmosphere. Estimations of the observability of the small-scale dynamics as a function of spatial…

Solar and Stellar Astrophysics · Physics 2021-12-08 Henrik Eklund , Sven Wedemeyer , Mikołaj Szydlarski , Shahin Jafarzadeh

In this paper we present simulated observations of massive self-gravitating circumstellar discs using the Atacama Large Millimetre/sub-millimetre Array (ALMA). Using a smoothed particle hydrodynamics model of a $0.2M_{\odot}$ disc orbiting…

Solar and Stellar Astrophysics · Physics 2015-05-18 P. Cossins , G. Lodato , L. Testi

ALMA is a revolutionary radio telescope at present and its full operation will start from 2012. It is expected that ALMA will resolve several cosmic questions and will show a new cosmic view to us. Our passion for astronomy naturally goes…

Instrumentation and Methods for Astrophysics · Physics 2011-06-20 Masao Saito , Satoru Iguchi

Solar observations with the Atacama Large Millimeter/sub-millimeter Array (ALMA) facilitate studying the atmosphere of the Sun at chromospheric heights at high spatial and temporal resolution at millimeter wavelengths. ALMA intensity data…

Solar and Stellar Astrophysics · Physics 2020-12-23 Henrik Eklund , Sven Wedemeyer , Mikolaj Szydlarski , Shahin Jafarzadeh , Juan Camilo Guevara Gómez

The precise mechanisms that provide the non-radiative energy for heating the chromosphere and the corona of the Sun and other stars are at the focus of intense contemporary research. Observations at submm/mm wavelengths are particularly…

Solar and Stellar Astrophysics · Physics 2016-10-19 R. Liseau , V. De la Luz , E. O'Gorman , E. Bertone , M. Chavez , F. Tapia

The digital revolution is transforming astronomy from a data-starved to a data-submerged science. Instruments such as the Atacama Large Millimeter Array (ALMA), the Large Synoptic Survey Telescope (LSST), and the Square Kilometer Array…

Instrumentation and Methods for Astrophysics · Physics 2012-09-25 Melvyn Wright

We present the first high-resolution Atacama Large Millimeter/Submillimeter Array (ALMA) observations of a sunspot at wavelengths of 1.3 mm and 3 mm, obtained during the solar ALMA Science Verification campaign in 2015, and compare them…

Solar and Stellar Astrophysics · Physics 2017-11-29 Maria Loukitcheva , Kazumasa Iwai , Sami K. Solanki , Stephen M. White , Masumi Shimojo

A diverse array of science goals require accurate flux calibration of observations with the Atacama Large Millimeter/Submillimeter array (ALMA), however, this goal remains challenging due to the stochastic time-variability of the ``grid''…

Instrumentation and Methods for Astrophysics · Physics 2020-11-25 Logan Francis , Doug Johnstone , Gregory Herczeg , Todd R. Hunter , Daniel Harsono

We have implemented control and data-taking software that makes it possible to scan the beams of individual ALMA antennas to perform quite complex patterns while recording the signals at high rates. We conducted test observations of the Sun…

Instrumentation and Methods for Astrophysics · Physics 2015-02-24 Neil Phillips , Richard Hills , Tim Bastian , Hugh Hudson , Ralph Marson , Sven Wedemeyer

A major goal of the Atacama Large Millimeter/submillimeter Array (ALMA) is to make accurate images with resolutions of tens of milliarcseconds, which at submillimeter (submm) wavelengths requires baselines up to ~15 km. To develop and test…

Instrumentation and Methods for Astrophysics · Physics 2016-09-30 ALMA Partnership , E. B. Fomalont , C. Vlahakis , S. Corder , A. Remijan , D. Barkats , R. Lucas , T. R. Hunter , C. L. Brogan , Y. Asaki , S. Matsushita , W. R. F. Dent , R. E. Hills , N. Phillips , A. M. S. Richards , P. Cox , R. Amestica , D. Broguiere , W. Cotton , A. S. Hales , R. Hiriart , A. Hirota , J. A. Hodge , C. M. V. Impellizzeri , J. Kern , R. Kneissl , E. Liuzzo , N. Marcelino , R. Marson , A. Mignano , K. Nakanishi , B. Nikolic , J. E. Perez , L. M. Pérez , I. Toledo , R. Aladro , B. Butler , J. Cortes , P. Cortes , V. Dhawan , J. Di Francesco , D. Espada , F. Galarza , D. Garcia-Appadoo , L. Guzman-Ramirez , E. M. Humphreys , T. Jung , S. Kameno , R. A. Laing , S. Leon , J. Mangum , G. Marconi , H. Nagai , L. -A. Nyman , M. Radiszcz , J. A. Rodón , T. Sawada , S. Takahashi , R. P. J. Tilanus , T. van Kempen , B. Vila Vilaro , L. C. Watson , T. Wiklind , F. Gueth , K. Tatematsu , A. Wootten , A. Castro-Carrizo , E. Chapillon , G. Dumas , I. de Gregorio-Monsalvo , H. Francke , J. Gallardo , J. Garcia , S. Gonzalez , J. E. Hibbard , T. Hill , T. Kaminski , A. Karim , M. Krips , Y. Kurono , C. Lopez , S. Martin , L. Maud , F. Morales , V. Pietu , K. Plarre , G. Schieven , L. Testi , L. Videla , E. Villard , N. Whyborn , M. A. Zwaan , F. Alves , P. Andreani , A. Avison , M. Barta , F. Bedosti , G. J. Bendo , F. Bertoldi , M. Bethermin , A. Biggs , J. Boissier , J. Brand , S. Burkutean , V. Casasola , J. Conway , L. Cortese , B. Dabrowski , T. A. Davis , M. Diaz Trigo , F. Fontani , R. Franco-Hernandez , G. Fuller , R. Galvan Madrid , A. Giannetti , A. Ginsburg , S. F. Graves , E. Hatziminaoglou , M. Hogerheijde , P. Jachym , I. Jimenez Serra , M. Karlicky , P. Klaasen , M. Kraus , D. Kunneriath , C. Lagos , S. Longmore , S. Leurini , M. Maercker , B. Magnelli , I. Marti Vidal , M. Massardi , A. Maury , S. Muehle , S. Muller , T. Muxlow , E. O'Gorman , R. Paladino , D. Petry , J. Pineda , S. Randall , J. S. Richer , A. Rossetti , A. Rushton , K. Rygl , A. Sanchez Monge , R. Schaaf , P. Schilke , T. Stanke , M. Schmalzl , F. Stoehr , S. Urban , E. van Kampen , W. Vlemmings , K. Wang , W. Wild , Y. Yang , S. Iguchi , T. Hasegawa , M. Saito , J. Inatani , N. Mizuno , S. Asayama , G. Kosugi , K. -I. Morita , K. Chiba , S. Kawashima , S. K. Okumura , N. Ohashi , R. Ogasawara , S. Sakamoto , T. Noguchi , Y. -D. Huang , S. -Y. Liu , F. Kemper , P. M. Koch , M. -T. Chen , Y. Chikada , M. Hiramatsu , D. Iono , M. Shimojo , S. Komugi , J. Kim , A. -R. Lyo , E. Muller , C. Herrera , R. E. Miura , J. Ueda , J. Chibueze , Y. -N. Su , A. Trejo-Cruz , K. -S. Wang , H. Kiuchi , N. Ukita , M. Sugimoto , R. Kawabe , M. Hayashi , S. Miyama , P. T. P. Ho , N. Kaifu , M. Ishiguro , A. J. Beasley , S. Bhatnagar , J. A. Braatz , D. G. Brisbin , N. Brunetti , C. Carilli , J. H. Crossley , L. D'Addario , J. L. Donovan Meyer , D. T. Emerson , A. S. Evans , P. Fisher , K. Golap , D. M. Griffith , A. E. Hale , D. Halstead , E. J. Hardy , M. C. Hatz , M. Holdaway , R. Indebetouw , P. R. Jewell , A. A. Kepley , D. -C. Kim , M. D. Lacy , A. K. Leroy , H. S. Liszt , C. J. Lonsdale , B. Matthews , M. McKinnon , B. S. Mason , G. Moellenbrock , A. Moullet , S. T. Myers , J. Ott , A. B. Peck , J. Pisano , S. J. E. Radford , W. T. Randolph , U. Rao Venkata , M. G. Rawlings , R. Rosen , S. L. Schnee , K. S. Scott , N. K. Sharp , K. Sheth , R. S. Simon , T. Tsutsumi , S. J. Wood

The precise mechanisms that provide the non-radiative energy for heating the chromosphere and the corona of the Sun and those of other stars constitute an active field of research. By studying stellar chromospheres one aims at identifying…

Strong gravitational lensing acts as a cosmic telescope, enabling the study of the high-redshift universe. Astronomical interferometers, such as the Atacama Large Millimeter/submillimeter Array (ALMA), have provided high-resolution images…

The Large Latin American Millimeter Array (LLAMA) is a multipurpose single-dish 12 m radiotelescope with VLBI capability under construction in the Puna de Atacama desert in the Province of Salta, Argentina. In this paper I review the…

Instrumentation and Methods for Astrophysics · Physics 2020-10-05 Gustavo E. Romero

The specifications of the Atacama Large Millimeter Array (ALMA) have placed stringent requirements on the mechanical performance of its antennas. As part of the evaluation process of the VertexRSI and Alcatel EIE Consortium (AEC) ALMA…

Astrophysics · Physics 2020-05-20 A. Greve , J. G. Mangum

The continuum intensity at wavelengths around 1 mm provides an excellent way to probe the solar chromosphere. Future high-resolution millimetre arrays, such as the Atacama Large Millimeter Array (ALMA), will thus produce valuable input for…

Astrophysics · Physics 2009-11-13 S. Wedemeyer-Boehm , H. -G. Ludwig , M. Steffen , J. Leenaarts , B. Freytag

We report the results of the Atacama Large Millimeter/sub-millimeter Array (ALMA) observations of the solar chromosphere on the southern polar limb. Coordinated observations with the Interface Region Imaging Spectrograph (IRIS) are also…

Solar and Stellar Astrophysics · Physics 2018-08-22 Takaaki Yokoyama , Masumi Shimojo , Takenori J. Okamoto , Haruhisa Iijima
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