Liu, Kuan-Yu 劉冠宇

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The first ever image of a black hole shadow in the human history. The image is a supermassive black hole at the center of an elliptical galaxy M87 at the center of the Virgo cluster (EHT Collaboration et al. 2019, ApJL, 875, L1).

The First Black Hole Shadow Image

The first image of the supermassive black hole at the center of our Galaxy, Sgr A*. With this image, we are now very sure that this source is a supermassive black hole (in the Nobel Prize in Physics 2020, this source was still expressed as "a supermassive compact object at the centre of our galaxy").

Astronomers Reveal First Image of the Black Hole at the Heart of Our Galaxy

The polarized light at the vicinity of the black hole for the first time (EHT Collaboration et al. 2021, ApJL, 910, L12), which carries the magnetic field and plasma information very close to the black hole.

First Polarization Image around the Black Hole Shadow

We joined a dress rehearsal for the EHT 2018 observations on Jan. 28th ,2018, together with the ALMA and the South Pole Telescope (SPT).

GLT Astronomical First Fringe!!!

In May 2017, the GLT make the very first-time integration test from receiver to the backend recorder in ASIAA-Hawaii laboratory. Since the instrument rack is not delivered on time, the cable is not routing organized. However, the injection tone signal from RF window is recorded in the backend recorder as expected.

System integration test from receiver to Mark 6 recorder

The GLT frontend hardware was installed in JCMT of EAO for function test with sky signal. An LN2 container has set up in its Rx-cabin for Trx measurement before the real observation.

GLT receiver noise measurement in JCMT

Liu, Kuan-Yu Project Engineer
	Office: ASMAB 1007 TEL: +886-2-2366-5336 FAX: +886-2-2367-7849 Email: kyliuasiaa.sinica.edu.tw my ORCID information

Research Interests

Electrical Engineering

Publications

My Publications from ADS

Journal Papers affiliated with ASIAA

EHT Collaboration; Akiyama K; Alberdi A; Alef W; Algaba JC; Anantua R; Asada K; Azulay R; Bach U; Baczko A-K; Ball D; Baloković M; Barrett J; Bauböck M; Benson BA; Bintley D; Blackburn L; Blundell R; Bouman KL; Bower GC; Boyce H; Bremer M; Brinkerink CD; Brissenden R; Britzen S; Broderick AE; Broguiere D; Bronzwaer T; Bustamante S; Byun D-Y; Carlstrom JE; Ceccobello C; Chael A; Chan C-K; Chatterjee K; Chatterjee S; Chen M-T; Chen Y; Cheng X; Cho I; Christian P; Conroy NS; Conway JE; Cordes JM; Crawford TM; Crew GB; Cruz-Osorio A; Cui Y; Davelaar J; Laurentis MD; Deane R; Dempsey J; Desvignes G; Dexter J; Dhruv V; Doeleman SS; Dougal S; Dzib SA; Eatough RP; Emami R; Falcke H; Farah J; Fish VL; Fomalont E; Ford HA; Fraga-Encinas R; Freeman WT; Friberg P; Fromm CM; Fuentes A; Galison P; Gammie CF; García R; Gentaz O; Georgiev B; Goddi C; Gold R; Gómez-Ruiz AI; Gómez JL; Gu M; Gurwell M; Hada K; Haggard D; Haworth K; Hecht MH; Hesper R; Heumann D; Ho LC; Ho P; Honma M; Huang C-WL; Huang L; Hughes DH; Ikeda S; Impellizzeri CMV; Inoue M; Issaoun S; James DJ; Jannuzi BT; Janssen M; Jeter B; Jiang W; Jiménez-Rosales A; Johnson MD; Jorstad S; Joshi AV; Jung T; Karami M; Karuppusamy R; Kawashima T; Keating GK; Kettenis M; Kim D-J; Kim J-Y; Kim J; Kim J; Kino M; Koay JY; Kocherlakota P; Kofuji Y; Koch PM; Koyama S; Kramer C; Kramer M; Krichbaum TP; Kuo C-Y; Bella NL; Lauer TR; Lee D; Lee S-S; Leung PK; Levis A; Li Z; Lico R; Lindahl G; Lindqvist M; Lisakov M; Liu J; Liu K; Liuzzo E; Lo W-P; Lobanov AP; Loinard L; Lonsdale CJ; Lu R-S; Mao J; Marchili N; Markoff S; Marrone DP; Marscher AP; Martí-Vidal I; Matsushita S; Matthews LD; Medeiros L; Menten KM; Michalik D; Mizuno I; Mizuno Y; Moran JM; Moriyama K; Moscibrodzka M; Müller C; Mus A; Musoke G; Myserlis I; Nadolski A; Nagai H; Nagar NM; Nakamura M; Narayan R; Narayanan G; Natarajan I; Nathanail A; Fuentes SN; Neilsen J; Neri R; Ni C; Noutsos A; Nowak MA; Oh J; Okino H; Olivares H; Ortiz-León GN; Oyama T; özel F; Palumbo DCM; Paraschos GF; Park J; Parsons H; Patel N; Pen U-L; Pesce DW; Piétu V; Plambeck R; Popstefanija A; Porth O; Pötzl FM; Prather B; Preciado-López JA; Psaltis D; Pu H-Y; Ramakrishnan V; Rao R; Rawlings MG; Raymond AW; Rezzolla L; Ricarte A; Ripperda B; Roelofs F; Rogers A; Ros E; Romero-Cañizales C; Roshanineshat A; Rottmann H; Roy AL; Ruiz I; Ruszczyk C; Rygl KLJ; Sánchez S; Sánchez-Argüelles D; Sánchez-Portal M; Sasada M; Satapathy K; Savolainen T; Schloerb FP; Schonfeld J; Schuster K-F; Shao L; Shen Z; Small D; Sohn BW; Soohoo J; Souccar K; Sun H; Tazaki F; Tetarenko AJ; Tiede P; Tilanus RPJ; Titus M; Torne P; Traianou E; Trent T; Trippe S; Turk M; Van Bemmel I; Van Langevelde HJ; Van Rossum DR; Vos J; Wagner J; Ward-Thompson D; Wardle J; Weintroub J; Wex N; Wharton R; Wielgus M; Wiik K; Witzel G; Wondrak MF; Wong GN; Wu Q; Yamaguchi P; Yoon D; Young A; Young K; Younsi Z; Yuan F; Yuan Y-F; Zensus JA; Zhang S; Zhao G-Y; Zhao S-S; Agurto C; Allardi A; Amestica R; Araneda JP; Arriagada O; Berghuis JL; Bertarini A; Berthold R; Blanchard J; Brown K; Cárdenas M; Cantzler M; Caro P; Castillo-Domínguez E; Chan TL; Chang C-C; Chang DO; Chang S-H; Chang S-C; Chen C-C; Chilson R; Chuter TC; Ciechanowicz M; Colin-Beltran E; Coulson IM; Crowley J; Degenaar N; Dornbusch S; Durán CA; Everett WB; Faber A; Forster K; Fuchs MM; Gale DM; Geertsema G; González E; Graham D; Gueth F; Halverson NW; Han C-C; Han K-C; Hasegawa Y; Hernández-Rebollar JL; Herrera C; Herrero-Illana R; Heyminck S; Hirota A; Hoge J; Hostler Schimpf SR; Howie RE; Huang Y-D; Jiang H; Jinchi H; John D; Kimura K; Klein T; Kubo D; Kuroda J; Kwon C; Lacasse R; Laing R; Leitch EM; Li C-T; Liu C-T; Liu K-Y; Lin LCC; Lu L-M; Mac-Auliffe F; Martin-Cocher P; Matulonis C; Maute JK; Messias H; Meyer-Zhao Z; Montaña A; Montenegro-Montes F; Montgomerie W; Moreno Nolasco ME; Muders D; Nishioka H; Norton TJ; Nystrom G; Ogawa H; Olivares R; Oshiro P; Pérez-Beaupuits JP; Parra R; Phillips NM; Poirier M; Pradel N; Qiu R; Raffin PA; Rahlin AS; Ramírez J; Ressler S; Reynolds M; Rodríguez-Montoya I; Saez-Madain AF; Santana J; Shaw P; Shirkey LE; Silva KM; Snow W; Sousa D; Sridharan TK; Stahm W; Stark AA; Test J; Torstensson K; Venegas P; Walther C; Wei T-S; White C; Wieching G; Wijnands R; Wouterloot JGA; Yu C-Y; Yu W; Zeballos M, "First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way" , ApJL: 930(2), id.L12 (21pp), May, 2022 [SCI] ( ADS | Fulltext )
EHT Collaboration; Akiyama K; Alberdi A; Alef W; Algaba JC; Anantua R; Asada K; Azulay R; Bach U; Baczko A-K; Ball D; Baloković M; Barrett J; Bauböck M; Benson BA; Bintley D; Blackburn L; Blundell R; Bouman KL; Bower GC; Boyce H; Bremer M; Brinkerink CD; Brissenden R; Britzen S; Broderick AE; Broguiere D; Bronzwaer T; Bustamante S; Byun D-Y; Carlstrom JE; Ceccobello C; Chael A; Chan C-K; Chatterjee K; Chatterjee S; Chen M-T; Chen Y; Cheng X; Cho I; Christian P; Conroy NS; Conway JE; Cordes JM; Crawford TM; Crew GB; Cruz-Osorio A; Cui Y; Davelaar J; De Laurentis M; Deane R; Dempsey J; Desvignes G; Dexter J; Dhruv V; Doeleman SS; Dougal S; Dzib SA; Eatough RP; Emami R; Falcke H; Farah J; Fish VL; Fomalont E; Ford HA; Fraga-Encinas R; Freeman WT; Friberg P; Fromm CM; Fuentes A; Galison P; Gammie CF; García R; Gentaz O; Georgiev B; Goddi C; Gold R; Gómez-Ruiz AI; Gómez JL; Gu M; Gurwell M; Hada K; Haggard D; Haworth K; Hecht MH; Hesper R; Heumann D; Ho LC; Ho P; Honma M; Huang C-WL; Huang L; Hughes DH; Ikeda S; Impellizzeri CMV; Inoue M; Issaoun S; James DJ; Jannuzi BT; Janssen M; Jeter B; Jiang W; Jiménez-Rosales A; Johnson MD; Jorstad S; Joshi AV; Jung T; Karami M; Karuppusamy R; Kawashima T; Keating GK; Kettenis M; Kim D-J; Kim J-Y; Kim J; Kim J; Kino M; Koay JY; Kocherlakota P; Kofuji Y; Koch PM; Koyama S; Kramer C; Kramer M; Krichbaum TP; Kuo C-Y; Bella NL; Lauer TR; Lee D; Lee S-S; Leung PK; Levis A; Li Z; Lico R; Lindahl G; Lindqvist M; Lisakov M; Liu J; Liu K; Liuzzo E; Lo W-P; Lobanov AP; Loinard L; Lonsdale CJ; Lu R-S; Mao J; Marchili N; Markoff S; Marrone DP; Marscher AP; Martí-Vidal I; Matsushita S; Matthews LD; Medeiros L; Menten KM; Michalik D; Mizuno I; Mizuno Y; Moran JM; Moriyama K; Moscibrodzka M; Müller C; Mus A; Musoke G; Myserlis I; Nadolski A; Nagai H; Nagar NM; Nakamura M; Narayan R; Narayanan G; Natarajan I; Nathanail A; Fuentes SN; Neilsen J; Neri R; Ni C; Noutsos A; Nowak MA; Oh J; Okino H; Olivares H; Ortiz-León GN; Oyama T; özel F; Palumbo DCM; Paraschos GF; Park J; Parsons H; Patel N; Pen U-L; Pesce DW; Piétu V; Plambeck R; Popstefanija A; Porth O; Pötzl FM; Prather B; Preciado-López JA; Psaltis D; Pu H-Y; Ramakrishnan V; Rao R; Rawlings MG; Raymond AW; Rezzolla L; Ricarte A; Ripperda B; Roelofs F; Rogers A; Ros E; Romero-Cañizales C; Roshanineshat A; Rottmann H; Roy AL; Ruiz I; Ruszczyk C; Rygl KLJ; Sánchez S; Sánchez-Argüelles D; Sánchez-Portal M; Sasada M; Satapathy K; Savolainen T; Schloerb FP; Schonfeld J; Schuster K-F; Shao L; Shen Z; Small D; Sohn BW; Soohoo J; Souccar K; Sun H; Tazaki F; Tetarenko AJ; Tiede P; Tilanus RPJ; Titus M; Torne P; Traianou E; Trent T; Trippe S; Turk M; Van Bemmel I; Van Langevelde HJ; Van Rossum DR; Vos J; Wagner J; Ward-Thompson D; Wardle J; Weintroub J; Wex N; Wharton R; Wielgus M; Wiik K; Witzel G; Wondrak MF; Wong GN; Wu Q; Yamaguchi P; Yoon D; Young A; Young K; Younsi Z; Yuan F; Yuan Y-F; Zensus JA; Zhang S; Zhao G-Y; Zhao S-S; Agurto C; Araneda JP; Arriagada O; Bertarini A; Berthold R; Blanchard J; Brown K; Cárdenas M; Cantzler M; Caro P; Chuter TC; Ciechanowicz M; Coulson IM; Crowley J; Degenaar N; Dornbusch S; Durán CA; Forster K; Geertsema G; González E; Graham D; Gueth F; Han C-C; Herrera C; Herrero-Illana R; Heyminck S; Hoge J; Huang Y-D; Jiang H; John D; Klein T; Kubo D; Kuroda J; Kwon C; Laing R; Liu C-T; Liu K-Y; Mac-Auliffe F; Martin-Cocher P; Matulonis C; Messias H; Meyer-Zhao Z; Montenegro-Montes F; Montgomerie W; Muders D; Nishioka H; Norton TJ; Olivares R; Pérez-Beaupuits JP; Parra R; Poirier M; Pradel N; Raffin PA; Ramírez J; Reynolds M; Saez-Madain AF; Santana J; Silva KM; Sousa D; Stahm W; Torstensson K; Venegas P; Walther C; Wieching G; Wijnands R; Wouterloot JGA, "First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration" , ApJL: 930(2), id.L13 (31pp), May, 2022 [SCI] ( ADS | Fulltext )
Event Horizon Telescope Collaboration; Akiyama K; Alberdi A; ...; Asada K; ...; Bower GC; ...; Chen MT; ...; Ho PTP; ...; Huang C-W L; ...; Inoue M; ...; Koay JY; Koch PM; Koyama S; ...; Kuo C-Y; ...; Lo W-P; ...; Matsushita S; ...; Nakamura M; ...; Pen U-L; ...; Pu H-Y; ...; Rao R; ...; Algaba J-C; ...; Chang C-C; Chang S-H; Chen C-C; Chilson R; ...; Han C-C; ...; Huang Y-D;...; Jiang H; ...; Kubo D; ...; Li C-T; Lin LC-C; ...; Liu K-Y; ...; Martin-Cocher PL; ...; Meyer-Zhao Z; ...; Nishioka H; ...; Nystrom G; ...; Oshiro P; ...; Pradel N; ...; Raffin PA; ...; Shaw P; ...; Snow W; ...; Srinivasan R; ...; Wei T-S; Yu C-Y; et al., "First M87 Event Horizon Telescope Results. II. Array and Instrumentation" , ApJL: 875(1), id. L2 (28 pp.), Apr, 2019 [SCI] ( ADS | Fulltext )
Event Horizon Telescope Collaboration; Akiyama K; Alberdi A; ...; Asada K; ...; Bower GC; Chen MT; ...; Ho PTP; ...; Huang C-W L; ...; Inoue M; ...; Koay JY; Koch PM; Koyama S; ...; Kuo C-Y; ...; Lo W-P; ...; Matsushita S; ...; Nakamura M; ...; Pen U-L; ...; Pu H-Y; ...; Rao R; ...; Algaba J-C; ...; Chang C-C; Chang S-H; Chen C-C; Chilson R; ...; Han C-C; ...; Hasegawa Y; ...; Impellizzeri CMV; ...; Hirota A; ...; Huang Y-D; ...; Jiang H; ...; Kimura K; ...; Li C-T; Lin LC-C; ...; Liu K-Y; ...; Martin-Cocher PL; ...; Meyer-Zhao Z; ...; Nishioka H; ...; Nystrom G; ...; Oshiro P; ...; Pradel N; ...; Raffin PA; ...; Shaw P; ...; Snow W; ...; Srinivasan R; ...; Wei T-S; Yu C-Y; et al., "First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole" , ApJL: 875(1), id. L1 (17 pp.), Apr, 2019 [SCI] ( ADS | Fulltext )
Liu K-Y; Wang MJ; Li C-T; Chen T-J; Shi S-C, "Development of a Dual Polarization SIS Mixer with a Planar Orthomode Transducer at 350 GHz" , IEEE T Appl Supercon: 23(3), 1400705, June, 2013 [SCI] ( ADS | Fulltext )
Li C-T; Liu K-Yu; Lu W-C; Chiu C-P; Chen T-J; Chen C-W; Chang Y-C; Wang M-J; Shi S-C, "Development of 460 GHz and Dual Polarization SIS Mixers for the Submillimeter Array" , IEEE T Appl Supercon: 21(3), 654-658, June, 2011 [SCI] ( ADS | Fulltext )