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A Decade of Developing Radio-Astronomy Instrumentation using CASPER Open-Source Technology
Jack Hickish,Zuhra Abdurashidova,Zaki S. Ali,Kaushal D. Buch,Sandeep C. Chaudhari,Hong Chen,Matthew R. Dexter,Rachel Simone Domagalski,Rachel Simone Domagalski,John Ford,John Ford,Griffin Foster,David George,Joe Greenberg,Lincoln J. Greenhill,A. R. Isaacson,Homin Jiang,Glenn Jones,F. Kapp,H. Kriel,Rich Lacasse,Andrew Lutomirski,David MacMahon,Jason Manley,Andrew Martens,Randy McCullough,Mekhala V. Muley,Wesley New,Aaron R. Parsons,Danny C. Price,Rurik A. Primiani,Jason Ray,Andrew Siemion,Andrew Siemion,Andrew Siemion,Verees'e Van Tonder,Laura Vertatschitsch,Mark Wagner,Mark Wagner,Jonathan Weintroub,Dan Werthimer +40 more
TLDR
The ongoing state of software development is described, as CASPER looks to support a broader range of programming environments and hardware and ensure compatibility with the latest vendor tools.Abstract:
The Collaboration for Astronomy Signal Processing and Electronics Research (CASPER) has been working for a decade to reduce the time and cost of designing, building and deploying new digital radio-astronomy instruments. Today, CASPER open-source technology powers over 45 scientific instruments worldwide, and is used by scientists and engineers at dozens of academic institutions. In this paper we catalog the current offerings of the CASPER collaboration, and instruments past and present built by CASPER users and developers. We describe the ongoing state of software development, as CASPER looks to support a broader range of programming environments and hardware and ensure compatibility with the latest vendor tools.read more
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First M87 Event Horizon Telescope Results. II. Array and Instrumentation
Kazunori Akiyama,Antxon Alberdi,Walter Alef,Keiichi Asada,Rebecca Azulay,Rebecca Azulay,Anne Kathrin Baczko,David Ball,Mislav Baloković,John E. Barrett,Dan Bintley,Lindy Blackburn,W. Boland,Katherine L. Bouman,Katherine L. Bouman,Geoffrey C. Bower,Michael Bremer,Christiaan D. Brinkerink,Roger Brissenden,Silke Britzen,Avery E. Broderick,Avery E. Broderick,Dominique Broguiere,Thomas Bronzwaer,Do-Young Byun,John E. Carlstrom,Andrew Chael,Chi-kwan Chan,Shami Chatterjee,Koushik Chatterjee,Ming-Tang Chen,Yi Chen,Yi Chen,Ilje Cho,Pierre Christian,Pierre Christian,John Conway,James M. Cordes,Geoffrey B. Crew,Yuzhu Cui,Yuzhu Cui,Jordy Davelaar,Mariafelicia De Laurentis,Mariafelicia De Laurentis,Roger Deane,Roger Deane,Jessica Dempsey,Gregory Desvignes,Jason Dexter,Sheperd S. Doeleman,R. P. Eatough,Heino Falcke,Vincent L. Fish,Ed Fomalont,Raquel Fraga-Encinas,Per Friberg,Christian M. Fromm,José L. Gómez,Peter Galison,Charles F. Gammie,Roberto Garcia,Olivier Gentaz,Boris Georgiev,Ciriaco Goddi,Ciriaco Goddi,Roman Gold,Minfeng Gu,Minfeng Gu,Mark Gurwell,Kazuhiro Hada,Kazuhiro Hada,Michael H. Hecht,Ronald Hesper,Luis C. Ho,Paul T. P. Ho,Mareki Honma,Mareki Honma,Chih-Wei Locutus Huang,Lei Huang,Lei Huang,David H. Hughes,Shiro Ikeda,Makoto Inoue,Sara Issaoun,David J. James,Buell T. Jannuzi,Michael Janssen,Britton Jeter,Wu Jiang,Michael D. Johnson,Svetlana G. Jorstad,Svetlana G. Jorstad,Taehyun Jung,Mansour Karami,Mansour Karami,Ramesh Karuppusamy,Tomohisa Kawashima,Garrett K. Keating,Mark Kettenis,Jae-Young Kim,Junhan Kim,Jongsoo Kim,Motoki Kino,Motoki Kino,Jun Yi Koay,Patrick M. Koch,Shoko Koyama,Michael Kramer,Carsten Kramer,Thomas P. Krichbaum,C. Y. Kuo,Tod R. Lauer,Sang-Sung Lee,Yan-Rong Li,Zhiyuan Li,Michael Lindqvist,Kuo Liu,Elisabetta Liuzzo,Wen Ping Lo,Wen Ping Lo,Andrei P. Lobanov,Laurent Loinard,Colin J. Lonsdale,Ru-Sen Lu,Ru-Sen Lu,Nicholas R. MacDonald,Jirong Mao,Sera Markoff,Daniel P. Marrone,Alan P. Marscher,Ivan Marti-Vidal,Satoki Matsushita,Lynn D. Matthews,Lia Medeiros,Lia Medeiros,Karl M. Menten,Yosuke Mizuno,Izumi Mizuno,James M. Moran,Kotaro Moriyama,Kotaro Moriyama,Monika Moscibrodzka,Cornelia Müller,Cornelia Müller,Hiroshi Nagai,Hiroshi Nagai,Neil M. Nagar,Masanori Nakamura,Ramesh Narayan,Gopal Narayanan,Iniyan Natarajan,Roberto Neri,Chunchong Ni,Aristeidis Noutsos,Hiroki Okino,Hiroki Okino,Hector Olivares,Gisela N. Ortiz-León,Tomoaki Oyama,Feryal Özel,Daniel C. M. Palumbo,Nimesh A. Patel,Ue-Li Pen,Ue-Li Pen,Ue-Li Pen,Dominic W. Pesce,Vincent Piétu,Richard L. Plambeck,Aleksandar Popstefanija,Oliver Porth,Oliver Porth,Ben Prather,Jorge A. Preciado-López,Dimitrios Psaltis,Hung Yi Pu,Venkatessh Ramakrishnan,Ramprasad Rao,Mark G. Rawlings,Alexander W. Raymond,Luciano Rezzolla,Bart Ripperda,Freek Roelofs,Alan E. E. Rogers,Eduardo Ros,Mel Rose,Arash Roshanineshat,Helge Rottmann,Alan L. Roy,Chet Ruszczyk,Benjamin R. Ryan,Kazi L.J. Rygl,S. Sánchez,David Sánchez-Arguelles,David Sánchez-Arguelles,Mahito Sasada,Mahito Sasada,Tuomas Savolainen,Tuomas Savolainen,F. Peter Schloerb,Karl Friedrich Schuster,Lijing Shao,Lijing Shao,Zhiqiang Shen,Zhiqiang Shen,Des Small,Bong Won Sohn,Bong Won Sohn,Jason SooHoo,Fumie Tazaki,Paul Tiede,Remo P. J. Tilanus,Remo P. J. Tilanus,Michael Titus,Kenji Toma,Pablo Torne,Tyler Trent,Sascha Trippe,Shuichiro Tsuda,Ilse van Bemmel,Huib Jan van Langevelde,Huib Jan van Langevelde,Daniel R. van Rossum,Jan Wagner,John Wardle,Jonathan Weintroub,Norbert Wex,Robert Wharton,Maciek Wielgus,George N. Wong,Qingwen Wu,André Young,Ken H. Young,Ziri Younsi,Ziri Younsi,Feng Yuan,Feng Yuan,Ye-Fei Yuan,J. Anton Zensus,Guang-Yao Zhao,Shan Shan Zhao,Shan Shan Zhao,Ziyan Zhu,Juan-Carlos Algaba,Juan-Carlos Algaba,Alexander Allardi,Rodrigo Amestica,Uwe Bach,Christopher Beaudoin,Bradford Benson,Ryan Berthold,J. Blanchard,J. Blanchard,Ray Blundell,Sandra Bustamente,Roger J. Cappallo,E. Castillo-Domínguez,E. Castillo-Domínguez,Chih Cheng Chang,Chih Cheng Chang,Shu Hao Chang,Song Chu Chang,Chung Chen Chen,Ryan Chilson,Timothy C. Chuter,Rodrigo Córdova Rosado,Iain Coulson,T. M. Crawford,Joseph Crowley,John David,Mark Derome,Matthew R. Dexter,Sven Dornbusch,Kevin A. Dudevoir,S. A. Dzib,Chris Eckert,Neal R. Erickson,W. B. Everett,Aaron Faber,Joseph R. Farah,Joseph R. Farah,Vernon Fath,Thomas W. Folkers,David C. Forbes,Robert Freund,Arturo I. Gómez-Ruiz,Arturo I. Gómez-Ruiz,David M. Gale,Feng Gao,Feng Gao,Gertie Geertsema,D. A. Graham,Christopher Greer,Ronald Grosslein,Frederic Gueth,N. W. Halverson,Chih Chiang Han,Kuo Chang Han,Jinchi Hao,Yutaka Hasegawa,Jason W. Henning,Jason W. Henning,Antonio Hernández-Gómez,Antonio Hernández-Gómez,Rubén Herrero-Illana,Stefan Heyminck,Akihiko Hirota,Akihiko Hirota,James Hoge,Yau De Huang,C. M.Violette Impellizzeri,C. M.Violette Impellizzeri,Homin Jiang,Atish Kamble,Ryan Keisler,Kimihiro Kimura,Yusuke Kono,Derek Kubo,John Kuroda,Richard Lacasse,R. Laing,Erik M. Leitch,Chao-Te Li,Lupin C.C. Lin,Lupin C.C. Lin,Ching Tang Liu,Kuan Yu Liu,Li Ming Lu,Ralph G. Marson,Pierre Martin-Cocher,Kyle D. Massingill,Callie Matulonis,Martin P. McColl,Stephen R. McWhirter,Hugo Messias,Hugo Messias,Zheng Meyer-Zhao,Zheng Meyer-Zhao,Daniel Michalik,A. Montaña,A. Montaña,William Montgomerie,M. Mora-Klein,Dirk Muders,A. Nadolski,S. Navarro,Chi H. Nguyen,Chi H. Nguyen,Hiroaki Nishioka,Timothy Norton,George Nystrom,Hideo Ogawa,Peter Oshiro,Stephen Padin,Harriet Parsons,Scott Paine,J. Peñalver,N. Phillips,N. Phillips,M. Poirier,Nicolas Pradel,Rurik A. Primiani,Philippe Raffin,Alexandra S. Rahlin,Alexandra S. Rahlin,George Reiland,Christopher Risacher,Ignacio Ruiz,Alejandro F. Sáez-Madain,Alejandro F. Sáez-Madain,Remi Sassella,Pim Schellart,Pim Schellart,Paul Shaw,Kevin M. Silva,Hotaka Shiokawa,David R. Smith,William Snow,Kamal Souccar,Don Sousa,T. K. Sridharan,Ranjani Srinivasan,William Stahm,Antony A. Stark,K. T. Story,Sjoerd T. Timmer,Laura Vertatschitsch,Craig Walther,Ta Shun Wei,Nathan Whitehorn,Alan R. Whitney,David P. Woody,J. G. A. Wouterloot,M. C. H. Wright,Paul Yamaguchi,Chen Yu Yu,M. Zeballos,M. Zeballos,Lucy M. Ziurys +397 more
TL;DR: The Event Horizon Telescope (EHT) as mentioned in this paper is a very long baseline interferometry (VLBI) array that comprises millimeter and submillimeter-wavelength telescopes separated by distances comparable to the diameter of the Earth.
Journal ArticleDOI
A fast radio burst localised to a massive galaxy
Vikram Ravi,Morgan Catha,Larry D'Addario,S. G. Djorgovski,Gregg Hallinan,R. Hobbs,Jonathan Kocz,Shrinivas R. Kulkarni,J. Shi,Harish Vedantham,Sander Weinreb,D. P. Woody +11 more
TL;DR: Use of a specially built radio interferometer shows that a non-repeating fast radio burst is localized to a few-arcsecond region containing a single massive galaxy, and is perhaps derived from an old stellar population.
Journal ArticleDOI
Diverse polarization angle swings from a repeating fast radio burst source
Rui Luo,Rui Luo,Rui Luo,Boyuan Wang,Boyuan Wang,Y. P. Men,Y. P. Men,Chao Zhang,Chao Zhang,J. C. Jiang,J. C. Jiang,Huibin Xu,Huibin Xu,Weiyang Wang,Kejia Lee,Kejia Lee,J. L. Han,Bing Zhang,R. N. Caballero,Maozheng Chen,Xu Chen,H. Q. Gan,Yi Guo,Yi Guo,Lei Hao,Y. Huang,Peng Jiang,Haitao Li,Jiemin Li,Li Zhengjia,Jing-Jia Luo,Jian-Wei Pan,Xin Pei,Luxi Qian,Jing Sun,Min（王敏） Wang,Na Wang,Zengqi Wen,Renxin Xu,Yong Xu,Jinghua Yan,W. M. Yan,D. J. Yu,Jian-Ping Yuan,Songbo Zhang,Songbo Zhang,Y. H. Zhu +46 more
TL;DR: Polarization observations of the fast radio burst FRB-180301 with the FAST radio telescope show diverse polarization angle swings, consistent with a magnetospheric origin of the emission as discussed by the authors.
Journal ArticleDOI
Probing Radio Intensity at High-Z from Marion: 2017 Instrument
L. Philip,Zara Abdurashidova,H. C. Chiang,N. Ghazi,Austin A. Gumba,H. M. Heilgendorff,J. M. Jáuregui-García,K. Malepe,Chuneeta D. Nunhokee,Jeffrey B. Peterson,Jonathan Sievers,V. Simes,R. Spann +12 more
TL;DR: Probing Radio Intensity at high-Z from Marion (PRIZM) as discussed by the authors is a new experiment designed to measure the globally averaged sky brightness, including the expected redshifted 21cm neutral hydroge
Journal ArticleDOI
A digital correlator upgrade for the Arcminute MicroKelvin Imager
Jack Hickish,Nima Razavi-Ghods,Yvette C. Perrott,David Titterington,S. H. Carey,Paul F. Scott,Keith Grainge,Anna M. M. Scaife,Paul Alexander,Richard D. E. Saunders,Mike Crofts,Kamran Javid,Clare Rumsey,Terry Z. Jin,John Ely,C. Shaw,I. Northrop,Guy G. Pooley,R. D'Alessandro,P. Doherty,Greg P. Willatt +20 more
TL;DR: In this paper, the Arcminute Microkelvin Imager (AMI) telescopes located at the Mullard Radio Astronomy Observatory near Cambridge have been significantly enhanced by the implementation of a new digital correlator with 1.2 MHz spectral resolution.
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A Decade of Developing Radio-Astronomy Instrumentation using CASPER Open-Source Technology
Jack Hickish,Zuhra Abdurashidova,Zaki S. Ali,Kaushal D. Buch,Sandeep C. Chaudhari,Hong Chen,Matthew R. Dexter,Rachel Simone Domagalski,Rachel Simone Domagalski,John Ford,John Ford,Griffin Foster,David George,Joe Greenberg,Lincoln J. Greenhill,A. R. Isaacson,Homin Jiang,Glenn Jones,F. Kapp,H. Kriel,Rich Lacasse,Andrew Lutomirski,David MacMahon,Jason Manley,Andrew Martens,Randy McCullough,Mekhala V. Muley,Wesley New,Aaron R. Parsons,Danny C. Price,Rurik A. Primiani,Jason Ray,Andrew Siemion,Andrew Siemion,Andrew Siemion,Verees'e Van Tonder,Laura Vertatschitsch,Mark Wagner,Mark Wagner,Jonathan Weintroub,Dan Werthimer +40 more