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People > Research Fellow > Curriculum Vita
NA 12m Vertex prototype antenna at the JVLA site in Socorro, New Mexico.
The first SZE signal with the 7-element AMiBA
Delegation from Taiwan during the ALMA inauguration in March 2013 at the OSF in Chile.
the procured NA 12m Vertex prototype antenna at the JVLA site in Socorro, New Mexico.
the latest tuCASA-ASIAA imaging workshop held at National Normal University ShiDa
the ALMA alternative laser synthesizer
Nutating subreflector in the laboratory at ASIAA
EA-FEIC staff members celebrating the delivery of the very last front-end for Europe in 2012.
EA FEIC team delivering the first front end to Chile in 2008.
the front ends during testing and integration at the EA FEIC
An aerial view of the technical building at the AOS at 5000m
Aerial view of the Operations Support Facilities (OSF) at around 2900m.
ALMA antennas on the Chajnantor plateau in Chile
EA-FEIC staff members celebrating the delivery of the last receiver front-end system for our ALMA-Japan partner
The AMiBA receiver with the vacuum chamber removed
A New Method for Magnetic Field Strength Maps for Molecular Clouds
Dust continuum and polarization from envelope to cores in star formation: a case study in the W51 North region
1.2 m Shielded Cassegrain Antenna for Close-Packed Radio Interferometer
Mapping the Magnetic Field Strength in Molecular Clouds: W51 e2
Morphology of magnetic field in high mass star formation region - W51 e2 and e8 cores
Koch, Patrick
Associate Research Fellow (Tenured)
photo of Koch, Patrick
Office: ASMAB 1323
TEL: +886-2-2366-5451
FAX: +886-2-2367-7849
Email: pmkoch_replace2@_asiaa.sinica.edu.tw

Education and Positions

  • Associate Research Fellow, ASIAA (2016~present)
  • Assistant Research Fellow, ASIAA (2011~2015)
  • Research Scientist, ASIAA (2006~2010)
  • Postdoctoral Fellow, ASIAA (2003~2006)
  • Ph.D., Physics, University of Zurich, Switzerland (2003)
  • M.S., Physics, ETH Zurich, Switzerland (1999)
  • B.S., Physics, ETH Lausanne, Switzerland (1996)
  • B.S., Mechanical Engineering, ETH Lausanne, Switzerland (1995)

Honors & Awards

  • Career Development Award, Academia Sinica (2015~2019)
  • Significant Research Achievement, Academia Sinica (2012)

Research Interests

  • Clusters of Galaxies: Magnetic Fields, Cluster Mergers, Turbulence, Plasma Physics Processes
  • SZ effect and Structure Formation
  • Magnetic Fields and Turbulence in Star Formation
  • Observational Techniques, Interferometry in Radio Astronomy
  • Telescope Commissioning

Recent Journal PapersFor complete list of publications

  1. Koch PM; Ho PTP; ...; Lin KY; ...; Molnar SM; Nishioka H; Umetsu K; et al., "AMiBA 94 GHz SZE Observations: An Initial Measurement of H_0" , ASTROPHYSICAL JOURNAL, 2017, submitted [SCI]
  2. Siegel SR; ...; Umetsu K; Czakon N; ...; Koch PM; ...; Lin KY; ...; Molnar SM; et al,, "Constraints on the Mass, Concentration, and Nonthermal Pressure Support of Six CLASH Clusters from a Joint Analysis of X-ray, SZ, and Lensing Data" , ASTROPHYSICAL JOURNAL, 2017, submitted [SCI] (Fulltext)
  3. Yen HW; Koch PM; Takakuwa S; Krasnopolsky R; Ohashi N; Aso Y, "Early-Stage Disk Formation and Growth Observed with ALMA" , ASTROPHYSICAL JOURNAL, 2017, accepted [SCI]
  4. Koch PM;Chang Y-Y, "How significantly affect lage-scale filaments cluster SZE observations" , ASTROPHYSICAL JOURNAL, 2017, submitted [SCI]
  5. Juarez C; Girart JN; Zamora-Aviles M; Tang Y-W; Koch P; Liu HB; et al, "Magnetized converging flows towards the hot core in the intermediate/high-mass star-forming region NGC6334V" , ASTROPHYSICAL JOURNAL, 2017, submitted [SCI]
  6. Matsushita S; Asada K; Martin-Cocher PL; Chen M-T; Ho PTP; Inoue M; Koch PM; Paine SN; Turner DD, "3.5-Year Monitoring of 225 GHz Opacity at the Summit of Greenland " , PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC: 129(972), 025001, 2017-02 [SCI] (Fulltext)
  7. Yen HW; Koch PM ; Liu HY B; Puspitaningrum E; Hirano N; Lee CF; Takakuwa S, "Stacking Spectra in Protoplanetary Disks: Detecting Intensity Profiles from Hidden Molecular Lines in HD163296" , ASTROPHYSICAL JOURNAL: 832(2), 204, 2016-12 [SCI] (Fulltext)
  8. Hsieh P-Y; Ho PTP; Hwang C-Y; Shimajiri Y; Matsushita S; Koch PM; Iono D, "The Fossil Nuclear Outflow in the Central 30 pc of the Galactic Center" " , ASTROPHYSICAL JOURNAL: 831(1), 72-83, 2016-11 [SCI] (Fulltext)
  9. Lin K-Y; Nishioka H; ...; Huang C-W L; Liao Y-W; Wu J-H P; Koch PM; Umetsu K; Chen MT; ...; Chang S-H; Hoang Ngoc Duy; Han C-C; ...; Ho PTP; Huang Y-D; Jiang H; Li C-T;...; Martin-Cocher P; Molnar SM; et al., "AMiBA: Cluster Sunyaev-Zel'dovich Effect Observations with the Expanded 13-Element Array" , ASTROPHYSICAL JOURNAL: 830(2), 91, 2016-10 [SCI] (Fulltext)
  10. Hunacek J; Bock J; Bradford CM; ...; Chang TC; Cheng, YT; ...; Koch P; Li CT; et al.,, "Design and Fabrication of TES Detector Modules for the TIME-Pilot [CII] Intensity Mapping Experiment" , JOURNAL OF LOW TEMPERATURE PHYSICS: 184(3-4), 733-73, 2016-08 [SCI]
  11. Chou HG; Yen HW; Koch PM; Guilloteau S, "Protostar L1455 IRS1: Rotating Disk Connecting to Filamentary Network" , ASTROPHYSICAL JOURNAL: 823(2), 151, 2016-06 [SCI] (Fulltext)
  12. Hirashita H; Koch PM; Matsushita S; Takakuwa S; Nakamura M; Asada K; Liu HB; Urata U; Wang M-J; Wang W-H; Takahashi S; Tang Y-W; Chang H-H; Huang K; Morata O; Otsuka M; Lin K-Y; Tsai A-L; Lin Y-T; Srinivasan S; Martin-Cocher P; Pu J-Y; Kemper F; Patel N; Grimes P; Huang Y-D; Han C-C; Huang Y-R; Nishioka H; Lin C-CL; Zhang Q; Keto E; Burgos R; Chen M-T; Inoue M; Ho PTP, "First-generation Science Cases for Ground-based Terahertz Telescopes" , PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN: 68(1), R1, 2016-02 [SCI] (Fulltext)
  13. Liu T; Liu S-Y; Hirano N; Koch P; Tang Y-W; Liu HB; et al., "Planck cold clumps in the lambda-Orionis complex: I. Discovery of an extremely young Class 0 protostellar object and a proto-brown dwarf candidate in a bright rimmed clump PGCC G192.32-11.88" , ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES: 222(1), 7, 2016-01 [SCI] (Fulltext)
  14. Yen H-W; Shigehisa T; Koch PM; Aso Y; Koyamatsu S; Krasnopolsky R ; Ohashi N, "No Keplerian Disk > 10 AU around the Protostar B335: Magnetic Braking or Young Age?" , ASTROPHYSICAL JOURNAL: 812(2), 129, 2015-10 [SCI] (Fulltext)
  15. Czakon NG; Sayers J; Mantz A; Golwala SR; Downes TP; Koch PM; Lin KY; Molnar SM; Moustakas LA; Mroczkowski T; Pierpaoli E; Shitanishi JA; Siegel S; Umetsu K , "Galaxy Cluster Scaling Relations between Bolocam Sunayaev-Zel'dovich Effect and Chandra X-ray Measurements" , ASTROPHYSICAL JOURNAL: 806(1), 18, 2015-06 [SCI]
  16. ALMA Partnership, "The 2014 ALMA Long Baseline Campaign: An Overview" , Astrophysical Journal Letters: 808(1),1, 2015-05 [SCI] (Fulltext)
  17. Tang Y-W; Koch PM; Ho PTP; et al., "Magnetic field morphologies at mpc scale" , Highlights of Astronomy: 16, 392-392, 2015-03 (Fulltext)
  18. H.-W.Yen, P.M. Koch, S. Takakuwa, P.T.P. Ho, N. Ohashi and Y.-W. Tang, "Observations of Infalling and Rotational Motions on a 1,000-AU Scale around 17 Class 0 and 0/I Protostars: Hints of Disk Growth and Magnetic Braking?" , ASTROPHYSICAL JOURNAL: 799 (2), 193, 2015-01 [SCI]
  19. Koch PM; Tang YW; Ho PTP; Zhang Q; Girart JM; Chen HR V ; Frau P; Li HB; Li ZY; Liu HY B; Padovani M; Qiu K; Yen HW ; Chen HH; Ching TC; Lai SP; Rao R , "The Importance of the Magnetic Field from an SMA-CSO-Combined Sample of Star-Forming Regions" , ASTROPHYSICAL JOURNAL: 797(2), 99, 2014-12 [SCI] (Fulltext)
  20. Zhang Q: Qiu K; Girart JM; Liu HY B; Tang YW; Koch PM; Li ZY;, Keto E; Ho PTP; Rao R; Lai SP; Ching TC; Frau P; Chen HH; Li HB; Padovani M; Bontemps S; Csengeri T; Juárez C, "Magnetic Fields and Massive Star Formation" , ASTROPHYSICAL JOURNAL: 792 (2), 116-128, 2014-08 [SCI] (Fulltext)
  21. Inoue M et al, "Greenland Telescope Project -- Direct Confirmation of Black Hole with Sub-millimeter VLBI" , RADIO SCIENCE: 49 (7), 564-571, 2014-06 [SCI] (Fulltext)
  22. Kuo C-Y, Asada K, Rao R, Nakamura M, Algaba JC, Liu HB, Inoue M, Koch PM, Ho PTP, Matsushita S, Pu H-Y,, Akiyama K, Nishioka H, Pradel N, "Measuring Mass Accretion Rate onto the Supermassive Black Hole in M87 Using Faraday Rotation Measure with the Submillimeter Array" , The Astrophysical Journal: 783(2), L33, 2014-03 [SCI]
  23. Sayers J, Mroczkowski T, Zemcov M, Korngut PM, Bock J, Bulbul E, Czakon NG, Egami E, Golwala SR, Koch PM, Lin K-Y, Mantz A, Molnar SM, Moustakas L, Pierpaoli E, Rawle TD, Reese ED, Rex M, Shitanishi JA, Siegel S, Umetsu K, "A Measurement of the Kinetic Sunyaev-Zel'dovich Signal Toward MACS J0717.5+3745" , The Astrophysical Journal: 778(1), 52, 2013-11 [SCI]
  24. Koch PM; Tang YW; Ho PTP, "Interpreting the Role of the Magnetic Field from Dust Polarization Maps" , ASTROPHYSICAL JOURNAL: 775(1), 77, 2013-09 [SCI] (Fulltext)
  25. Girart JM; Frau P; Zhang Q; Koch PM; Qiu K; Tang Y-W; Lai S-P; Ho PTP, "DR 21(OH): A Highly Fragmented, Magnetized, Turbulent Dense Core" , ASTROPHYSICAL JOURNAL: 772(1), 69, 2013-07 [SCI]
  26. Liao Y-W, Lin K-Y, Huang Y-D, Wu J-H P, Ho PTP, Chen M-T, Huang C-W L, Koch PM, Nishioka H, Cheng T-A, Fu S-Y, Liu G-C, Molnar SM, Umetsu K, Wang F-C, Chang Y-Y, Han C-C, Li C-T, Martin-Cocher P, Oshiro P , "Platform Deformation Phase Correction for the AMiBA-13 Co-Planar Interferometer" , The Astrophysical Journal: 769(1), 71, 2013-05 [SCI]
  27. Sayers J, Czakon NG, Mantz A, Golwala SR, Ameglio S, Downes TP, Koch PM, Lin K-Y, Maughan BJ, Molnar SM, Moustakas L, Mroczkowski T, Pierpaoli E, Shitanishi JA, Siegel S, Umetsu K, Van der Pyl N, "Sunyaev-Zel'dovich-Measured Pressure Profiles from the Bolocam X-ray/SZ Galaxy Cluster Sample" , The Astrophysical Journal: 768(2), 177, 2013-05 [SCI]
  28. Tang Y-W; Ho PTP; Koch PM; et al.,, "Dust continuum and polarization from envelope to cores in star formation: a case study in the W51 North region" , ASTROPHYSICAL JOURNAL: 763(2), 135, 2013-02 [SCI] (Fulltext)
  29. Sayers J; ...; Koch PM; Lin KY; ...; Umetsu K, "The Contribution of Radio Galaxy Contamination to Measurements of the Sunyaev-Zel'dovich Decrement in Massive Galaxy Clusters at 140 GHz with Bolocam" , ASTROPHYSICAL JOURNAL: 764(2), 152, 2013-02 [SCI] (Fulltext)
  30. Mroczkowski T;...; Koch PM; Lin KY;...; Umetsu K; et al., "A Multi-Wavelength Study of the Sunyaev-Zel'dovich Effect in the Triple-Merger Cluster MACS J0717.5+3745 with MUSTANG and BOLOCAM" , ASTROPHYSICAL JOURNAL: 761(1), 47, 2012-12 [SCI] (Fulltext)
  31. Umetsu K; ...; Koch PM; Lin KY; Molnar SM; et al,, "CLASH: Mass Distribution in and around MACS J1206.2-0847 from a Full Cluster Lensing Analysis" , ASTROPHYSICAL JOURNAL: 755(1), 56, 2012-08 [SCI] (Fulltext)
  32. Sayers J; ...; Koch PM; Lin KY; Molnar SM; Umetsu K, "Bolocam Observations of Two Unconfirmed Galaxy Cluster Candidates from the Planck Early SZ Sample" , Astrophysical Journal Letters: 749(1), L15, 2012-04 [SCI] (Fulltext)
  33. Koch PM; Tang YW; Ho PTP , "Magnetic Field Strength Maps for Molecular Clouds: A New Method Based on a Polarization-Intensity Gradient Relation" , ASTROPHYSICAL JOURNAL: 747(1), 79, 2012-03 [SCI] (Fulltext)
  34. Koch PM; Tang YW; Ho PTP, "Quantifying the Significance of the Magnetic Field from Large-scale Cloud to Collapsing Core: Self-similarity, Mass-to-flux Ratio, and Star Formation Efficiency" , ASTROPHYSICAL JOURNAL: 747(1), 80, 2012-03 [SCI] (Fulltext)
  35. Koch PM; Raffin P; Huang Y-D; Chen M-T; Han C-C; Lin K-Y; Altamirano P; ...; Ho PTP; ...; Li C-T; Liao Y-W; Liu G-C; Nishioka H; ...; Oshiro P; Umetsu K; et al., "1.2 m Shielded Cassegrain Antenna for Close-Packed Radio Interferometer" , PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC: 123(900), 198-212, 2011-02 [SCI] (Fulltext)
  36. Molnar SM; Umetsu K; ...; Ho PTP; ...; Koch PM; Liao YWV; Lin KY; Liu GC; Nishioka H; et al., "Constraining Intra-Cluster Gas Models with AMiBA13" , ASTROPHYSICAL JOURNAL: 723(2), 1272-1285, 2010-11 [SCI] (Fulltext)
  37. G.-C. Liu; M. Birkinshaw; J.-H.P. Wu; P.T.P. Ho; C.-W.L. Huang; Y.-W. Liao; K.-Y. Lin; S.M. Molnar; H. Nishioka; P.M. Koch; K. Umetsu; F.-C. Wang; P. Altamirano; C.-H. Chang; S.-H. Chang; S.-W. Chang; M.-T. Chen; C.-C. Han; Y.-D. Huang; Y.-J. Hwang; H. Jiang; M. Kesteven; D. Kubo; C.-T. Li; P. Martin-Cocher; P. Oshiro; P. Raffin; T. Wei; W. Wilson , "Contamination of the Central Sunyaev-Zel'dovich Decrements in AMiBA Galaxy Cluster Observations" , ASTROPHYSICAL JOURNAL: 720(1), 608-613, 2010-09 [SCI] (Fulltext)
  38. Koch PM;Tang Y-W;Ho PTP, "Magnetic Field Properties in High Mass Star Formation from Large to SmallScales - A Statistical Analysis from Polarization Data" , ASTROPHYSICAL JOURNAL: 721(1), 815-827, 2010-09 [SCI] (Fulltext)
  39. Tang Y-W; Ho PTP; Koch PM; Rao R, "High-angular Resolution Dust Polarization Measurements: Shaped B-field Lines in Massive Star Forming Region Orion BN/KL" , ASTROPHYSICAL JOURNAL: 717(2), 1262-1273, 2010-07 [SCI]
  40. Li CT; Kubo DY;...; Lin KY; Chen MT; Ho PTP; Chen CC; Han CC; Oshiro P; Martin-Cocher P; Chang CH; Chang SH; Altamirano P; Jiang H;...; Wang H; ...; Chang SW; Huang YD; Hwang YJ; ...; Koch P; Liu GC; Nishioka H; Umetsu K; Wei T; Wu JHP, "AMiBA Wideband Analog Correlator" , Astrophysical Journal: 716(1), 746-757, 2010-06 [SCI] (Fulltext)
  41. Huang CWL; ...; Ho PTP; Koch PM; ...; Lin KY; Liu GC; Molnar SM; Nishioka H; Umetsu K; ...; Altamirano P; ...; Chang CH; Chang SH; Chang SW; Chen MT; ...; Han CC; Huang YD; Hwang YJ; Jiang H; ...; Kubo D; Li CT; Martin-Cocher P; Oshiro P; Raffin P; Wei T; et al., "AMiBA: scaling relations between the integrated Compton-y and X-ray derived temperature, mass, and luminosity" , ASTROPHYSICAL JOURNAL: 716(1), 758-765, 2010-06 [SCI] (Fulltext)
  42. Mason BS; Dicker SR; Korngut PM; Devlin MJ; Cotton WD; Koch PM; Molnar SM;et al. , "Implications of a High Angular Resolution Image of the Sunyaev-Zel'Dovich Effect in RXJ1347–1145" , Astrophysical Journal: 716(1), 739-745, 2010-06 [SCI] (Fulltext)
  43. Liao Y-W; Wu J-HP; Ho PTP; Huang C-WL; Koch PM; Lin K-Y; Liu G-C; Molnar SM; Nishioka H; Umetsu K; Wang F-C; Altamirano P; Birkinshaw M; Chang C-H; Chang S-H; Chang S-W; Chen M-T; Chiueh T; Han C-C; Huang Y-D; Hwang Y-J; Jiang H; Kesteven M; Kubo DY; Li C-T; Martin-Cocher P;Oshiro P; Raffin P; Wei T; Wilson W, "AMiBA: Sunyaev-Zeldovich Effect Derived Properties and Scaling Relations of Massive Galaxy Clusters" , Astrophysical Journal: 713(1), 584-591, 2010-04 [SCI] (Fulltext)
  44. Tang Y-W; Ho PTP; Koch PM; ...; Lai SP; Rao R, "Evolution of Magnetic Fields in High Mass Star Formation: Linking field geometry and collapse for the W51 e2/e8 cores" , ASTROPHYSICAL JOURNAL: 700(1), 251-261, 2009-07 [SCI] (Fulltext)
  45. Chen MT; Li CT; Hwang YJ; et al., "AMiBA: Broadband Heterodyne CMB Interferometry" , ASTROPHYSICAL JOURNAL: 694(2), 1664-1669, 2009-04 [SCI] (Fulltext)
  46. Lin KY; Li CT; Ho PTP; et al., "AMiBA: System Performance" , ASTROPHYSICAL JOURNAL: 694(2), 1629-1636, 2009-04 [SCI] (Fulltext)
  47. Wu JHP; Ho PTP; ...; Koch PM; ...; Lin KY; Liu GC; Molnar SM; Nishioka H; Umetsu K; ...; Altamirano P; ...; Chang CH; Chang SH; Chang SW; Chen MT; ...; Han CC; Huang YD; Hwang YJ; Jiang HM; ...; Kubo DY; ...; Li CT; Martin-Cocher P; Oshiro P; Raffin P; Wei TS; et al., "Array for Microwave Background Anisotropy: Observations, Data Analysis, and Results for Sunyaev-Zel'Dovich Effects" , ASTROPHYSICAL JOURNAL: 694(2), 1619-1628, 2009-04 [SCI] (Fulltext)
  48. Tang Y-W; Ho PTP; ...; Rao R; Koch P; et al., "Evolution of Magnetic Fields in High Mass Star Formation: SMA dust polarization image of the UCHII region G5.89-0.39" , ASTROPHYSICAL JOURNAL: 695(2), 1399-1412, 2009-04 [SCI] (Fulltext)
  49. Umetsu K; ...; Liu GC; Ho PTP; Koch PM; et al., "Mass and Hot Baryons in Massive Galaxy Clusters from Subaru Weak Lensing and AMiBA Sunyaev-Zel'dovich Effect Observations" , ASTROPHYSICAL JOURNAL: 694(2), 1643-1663, 2009-04 [SCI] (Fulltext)
  50. Nishioka H; ...; Ho PTP; Koch PM; Lin K-Y; et al., "Tests of AMiBA Data Integrity" , ASTROPHYSICAL JOURNAL: 694(2), 1637-1642, 2009-04 [SCI] (Fulltext)
  51. Koch PM; et al., "The AMiBA Hexapod Telescope Mount" , ASTROPHYSICAL JOURNAL: 694(2), 1670-1684, 2009-04 [SCI] (Fulltext)
  52. Ho PTP; Altamirano P; Chang CH; Chang SH; et al., "The Yuan-Tseh Lee Array for Microwave Background Anisotropy" , ASTROPHYSICAL JOURNAL: 694(2), 1610-1618, 2009-04 [SCI] (Fulltext)
  53. Wu JHP; Chiueh TH; ...; Chang C-H; Chang S-H; Chang S-W; et al., "AMiBA: First-Year Results for Sunyaev-Zel'dovich Effect" , MODERN PHYSICS LETTERS A: 23(17-20), 1675-1686, 2008-06 [SCI] (Fulltext)
  54. Ho PTP; Altimirano P;...; Chang S-W; Chang C-H; Chen MT; et al., "The Yuan Tseh Lee AMiBA Project" , MODERN PHYSICS LETTERS A: 23(20), 1243-1251, 2008-06 [SCI] (Fulltext)
  55. Koch PM, "Possible merger signature in SZ maps" , Journal of the Korean Astronomical Society: 37(5) 471, 2004-12 [SCI]
  56. Ho PTP; Chen M-T; ...; Chiueh T; Chu T-H; Jiang H; Koch P; Kubo D; Li C-T; ...; Lin K-Y; Liu G-C; Lo K-Y; Ma C-J; Martin RN; Ng K-W; Nishioka H; Patt F; ...; Wang H; Hwang Y-J; Umetsu K; et al., "The AMiBA Project" , MODERN PHYSICS LETTERS A: 19(13-16), 993-1000, 2004-05 [SCI] (Fulltext)
  57. Koch PM, Jetzer P, Puy D, "The influence of magnetic fields on the Sunyaev-Zeldovich effect in clusters of galaxies" , NEW ASTRONOMY: 8(1), 1, 2003-01 [SCI]
  58. Koch PM, Jetzer P, Puy D, "Cooling flow bulk motion corrections to Sunyaev-Zeldovich effect" , NEW ASTRONOMY: 7(1), 587, 2002-12 [SCI]
TEL: 886-2-3365-2200 FAX: 886-2-2367-7849
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