中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
SYMBA: An end-to-end VLBI synthetic data generation pipeline Simulating Event Horizon Telescope observations of M 87

文献类型:期刊论文

AuthorRoelofs, F.3; Janssen, M.3; Natarajan, I4; Deane, R.4,5; Davelaar, J.3; Olivares, H.3; Porth, O.6,7; Paine, S. N.8; Bouman, K. L.8,9,10; Tilanus, R. P. J.3,11,12
SourceASTRONOMY & ASTROPHYSICS
Issued Date2020-04-03
Volume636Pages:19
Keywordgalaxies nuclei black hole physics telescopes atmospheric effects techniques high angular resolution techniques interferometric
ISSN0004-6361
DOI10.1051/0004-6361/201936622
Rank第69完成单位
SubtypeArticle
English Abstract

Context. Realistic synthetic observations of theoretical source models are essential for our understanding of real observational data. In using synthetic data, one can verify the extent to which source parameters can be recovered and evaluate how various data corruption effects can be calibrated. These studies are the most important when proposing observations of new sources, in the characterization of the capabilities of new or upgraded instruments, and when verifying model-based theoretical predictions in a direct comparison with observational data. Aims. We present the SYnthetic Measurement creator for long Baseline Arrays (SYMBA), a novel synthetic data generation pipeline for Very Long Baseline Interferometry (VLBI) observations. SYMBA takes into account several realistic atmospheric, instrumental, and calibration effects. Methods. We used SYMBA to create synthetic observations for the Event Horizon Telescope (EHT), a millimetre VLBI array, which has recently captured the first image of a black hole shadow. After testing SYMBA with simple source and corruption models, we study the importance of including all corruption and calibration effects, compared to the addition of thermal noise only. Using synthetic data based on two example general relativistic magnetohydrodynamics (GRMHD) model images of M 87, we performed case studies to assess the image quality that can be obtained with the current and future EHT array for different weather conditions. Results. Our synthetic observations show that the effects of atmospheric and instrumental corruptions on the measured visibilities are significant. Despite these effects, we demonstrate how the overall structure of our GRMHD source models can be recovered robustly with the EHT2017 array after performing calibration steps, which include fringe fitting, a priori amplitude and network calibration, and self-calibration. With the planned addition of new stations to the EHT array in the coming years, images could be reconstructed with higher angular resolution and dynamic range. In our case study, these improvements allowed for a distinction between a thermal and a non-thermal GRMHD model based on salient features in reconstructed images.

Subject天文学 ; 天体物理学 ; 实测天体物理学 ; 射电天文学 ; 星系与宇宙学
URL查看原文
Publish PlaceAVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
Funding ProjectERC Synergy Grant BlackHoleCam: Imaging the Event Horizon of Black Holes[610058] ; New Scientific Frontiers with Precision Radio Interferometry Fellowship - South African Radio Astronomy Observatory (SARAO) ; Academy of Finland[274477] ; Academy of Finland[284495] ; Academy of Finland[312496] ; European Commission Framework Programme Horizon 2020 Research and Innovation action[731016] ; Black Hole Initiative at Harvard University from the John Templeton Foundation[60477] ; Comision Nacional de Investigacio Cientifica y Tecnologica (CONICYT, Chile)[PIA ACT172033] ; Comision Nacional de Investigacio Cientifica y Tecnologica (CONICYT, Chile)[Fondecyt 1171506] ; Comision Nacional de Investigacio Cientifica y Tecnologica (CONICYT, Chile)[BASAL AFB-170002] ; Comision Nacional de Investigacio Cientifica y Tecnologica (CONICYT, Chile)[ALMAconicyt 31140007] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[104497] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[275201] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[279006] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[281692] ; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112417] ; Generalitat Valenciana postdoctoral grant[APOSTD/2018/177] ; Gordon and Betty Moore Foundation[GBMF-3561] ; Gordon and Betty Moore Foundation[GBMF-5278] ; GenT Program (Generalitat Valenciana)[CIDEGENT/2018/021] ; Jansky Fellowship program of the National Radio Astronomy Observatory (NRAO) ; Japanese Government (Monbukagakusho: MEXT) Scholarship ; Japan Society for the Promotion of Science (JSPS)[JP17J08829] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)[QYZDJ-SSW-SLH057] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)[QYZDJ-SSW-SYS008] ; Leverhulme Trust Early Career Research Fellowship ; MEXT/JSPS KAKENHI[18KK0090] ; MEXT/JSPS KAKENHI[JP18K13594] ; MEXT/JSPS KAKENHI[JP18K03656] ; MEXT/JSPS KAKENHI[JP18H03721] ; MEXT/JSPS KAKENHI[18K03709] ; MEXT/JSPS KAKENHI[18H01245] ; MEXT/JSPS KAKENHI[25120007] ; MIT International Science and Technology Initiatives (MISTI) Funds ; Ministry of Science and Technology (MOST) of Taiwan[105-2112-M-001-025-MY3] ; Ministry of Science and Technology (MOST) of Taiwan[106-2112-M-001-011] ; Ministry of Science and Technology (MOST) of Taiwan[106-2119-M-001027] ; Ministry of Science and Technology (MOST) of Taiwan[107-2119-M-001-017] ; Ministry of Science and Technology (MOST) of Taiwan[107-2119-M-001-020] ; Ministry of Science and Technology (MOST) of Taiwan[107-2119-M-110-005] ; National Aeronautics and Space Administration (NASA, Fermi Guest Investigator grant)[80NSSC17K0649] ; NASA through the NASA Hubble Fellowship grant - Space Telescope Science Institute[HST-HF2-51431.001-A] ; NASA[NAS5-26555] ; National Key Research and Development Program of China[2016YFA0400704] ; National Key Research and Development Program of China[2016YFA0400702] ; National Science Foundation (NSF)[AST-0096454] ; National Science Foundation (NSF)[AST-0352953] ; National Science Foundation (NSF)[AST-0521233] ; National Science Foundation (NSF)[AST-0705062] ; National Science Foundation (NSF)[AST-0905844] ; National Science Foundation (NSF)[AST-0922984] ; National Science Foundation (NSF)[AST-1126433] ; National Science Foundation (NSF)[AST-1140030] ; National Science Foundation (NSF)[DGE-1144085] ; Natural Science Foundation of China[11573051] ; Natural Science Foundation of China[11633006] ; Natural Science Foundation of China[11650110427] ; Natural Science Foundation of China[10625314] ; Natural Science Foundation of China[11721303] ; Natural Science Foundation of China[11725312] ; Natural Science Foundation of China[11933007] ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; National Youth Thousand Talents Program of China ; National Research Foundation of Korea[NRF-2015H1A2A1033752] ; National Research Foundation of Korea[2015-R1D1A1A01056807] ; National Research Foundation of Korea[NRF-2015H1D3A1066561] ; Netherlands Organization for Scientific Research (NWO) VICI award[639.043.513] ; Spinoza Prize[SPI 78-409] ; Swedish Research Council[2017-00648] ; Government of Canada through the Department of Innovation, Science and Economic Development ; Province of Ontario through the Ministry of Research, Innovation and Science ; Princeton/Flatiron Postdoctoral Prize Fellowship ; Russian Science Foundation[17-12-01029] ; Spanish Ministerio de Economia y Competitividad[AYA2015-63939-C21-P] ; Spanish Ministerio de Economia y Competitividad[AYA2016-80889-P] ; State Agency for Research of the Spanish MCIU through the Center of Excellence Severo Ochoa award for the Instituto de Astrofisica de Andalucia[SEV-2017-0709] ; National Nuclear Security Administration of the USDOE[89233218CNA000001] ; Italian Ministero dell'Istruzione Universita e Ricerca through the grant Progetti Premiali 2012-iALMA[CUP C52I13000140001] ; European Union's Horizon 2020 research and innovation programme[730562] ; ALMA North America Development Fund ; Academia Sinica ; Chandra[TM6-17006X] ; NSF[ACI-1548562] ; NSF[DBI-0735191] ; NSF[DBI-1265383] ; NSF[DBI-1743442] ; Compute Ontario ; Calcul Quebec ; Compute Canada ; Smithsonian Institution ; National Key R&D Program of China[2017YFA0402700] ; Science and Technologies Facility Council (UK) ; CNRS (Centre National de la Recherche Scientifique, France) ; MPG (Max-Planck-Gesellschaft, Germany) ; IGN (Instituto Geografico Nacional, Spain) ; State of Arizona ; NSF Physics Frontier Center grant[PHY-1125897] ; Kavli Foundation ; [AST-1207704] ; [AST-1207730] ; [AST-1207752] ; [MRI-1228509] ; [OPP-1248097] ; [AST-1310896] ; [AST-1312651] ; [AST-1337663] ; [AST-1440254] ; [AST-1555365] ; [AST-1715061] ; [AST-1615796] ; [AST-1716327] ; [OISE-1743747] ; [AST-1816420]
WOS KeywordSGR A-ASTERISK ; BLACK-HOLE ; RADIO ; JET ; DISTRIBUTIONS ; CALIBRATION ; MODELS ; INTERFEROMETER ; FIELD ; M87
WOS Research AreaAstronomy & Astrophysics
Language英语
PublisherEDP SCIENCES S A
WOS IDWOS:000524552600002
Funding OrganizationERC Synergy Grant BlackHoleCam: Imaging the Event Horizon of Black Holes[610058] ; New Scientific Frontiers with Precision Radio Interferometry Fellowship - South African Radio Astronomy Observatory (SARAO) ; Academy of Finland[274477, 284495, 312496] ; European Commission Framework Programme Horizon 2020 Research and Innovation action[731016] ; Black Hole Initiative at Harvard University from the John Templeton Foundation[60477] ; Comision Nacional de Investigacio Cientifica y Tecnologica (CONICYT, Chile)[PIA ACT172033, Fondecyt 1171506, BASAL AFB-170002, ALMAconicyt 31140007] ; Consejo Nacional de Ciencia y Tecnologia (CONACYT, Mexico)[104497, 275201, 279006, 281692] ; Direccion General de Asuntos del Personal Academico-Universidad Nacional Autonoma de Mexico (DGAPA-UNAM)[IN112417] ; Generalitat Valenciana postdoctoral grant[APOSTD/2018/177] ; Gordon and Betty Moore Foundation[GBMF-3561, GBMF-5278] ; GenT Program (Generalitat Valenciana)[CIDEGENT/2018/021] ; Jansky Fellowship program of the National Radio Astronomy Observatory (NRAO) ; Japanese Government (Monbukagakusho: MEXT) Scholarship ; Japan Society for the Promotion of Science (JSPS)[JP17J08829] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)[QYZDJ-SSW-SLH057, QYZDJ-SSW-SYS008] ; Leverhulme Trust Early Career Research Fellowship ; MEXT/JSPS KAKENHI[18KK0090, JP18K13594, JP18K03656, JP18H03721, 18K03709, 25120007] ; MIT International Science and Technology Initiatives (MISTI) Funds ; Ministry of Science and Technology (MOST) of Taiwan[105-2112-M-001-025-MY3, 106-2112-M-001-011, 106-2119-M-001027, 107-2119-M-001-017, 107-2119-M-001-020, 107-2119-M-110-005] ; National Aeronautics and Space Administration (NASA, Fermi Guest Investigator grant)[80NSSC17K0649] ; NASA through the NASA Hubble Fellowship grant - Space Telescope Science Institute[HST-HF2-51431.001-A] ; NASA[NAS5-26555] ; National Key Research and Development Program of China[2016YFA0400704, 2016YFA0400702] ; National Science Foundation (NSF)[AST-0096454, AST-0352953, AST-0521233, AST-0705062, AST-0905844, AST-0922984, AST-1126433, AST-1140030, DGE-1144085] ; Natural Science Foundation of China[11573051, 11633006, 11650110427, 10625314, 11721303, 11725312, 11933007] ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; National Youth Thousand Talents Program of China ; National Research Foundation of Korea[NRF-2015H1A2A1033752, 2015-R1D1A1A01056807, NRF-2015H1D3A1066561] ; Netherlands Organization for Scientific Research (NWO) VICI award[639.043.513] ; Spinoza Prize[SPI 78-409] ; Swedish Research Council[2017-00648] ; Government of Canada through the Department of Innovation, Science and Economic Development ; Province of Ontario through the Ministry of Research, Innovation and Science ; Princeton/Flatiron Postdoctoral Prize Fellowship ; Russian Science Foundation[17-12-01029] ; Spanish Ministerio de Economia y Competitividad[AYA2015-63939-C21-P, AYA2016-80889-P] ; State Agency for Research of the Spanish MCIU through the Center of Excellence Severo Ochoa award for the Instituto de Astrofisica de Andalucia[SEV-2017-0709] ; National Nuclear Security Administration of the USDOE[89233218CNA000001] ; Italian Ministero dell'Istruzione Universita e Ricerca through the grant Progetti Premiali 2012-iALMA[CUP C52I13000140001] ; European Union's Horizon 2020 research and innovation programme[730562] ; ALMA North America Development Fund ; Academia Sinica ; Chandra[TM6-17006X] ; NSF[ACI-1548562, DBI-0735191, DBI-1265383, DBI-1743442] ; Compute Ontario ; Calcul Quebec ; Compute Canada ; Smithsonian Institution ; National Key R&D Program of China[2017YFA0402700] ; Science and Technologies Facility Council (UK) ; CNRS (Centre National de la Recherche Scientifique, France) ; MPG (Max-Planck-Gesellschaft, Germany) ; IGN (Instituto Geografico Nacional, Spain) ; State of Arizona ; NSF Physics Frontier Center grant[PHY-1125897] ; Kavli Foundation ; [AST-1207704] ; [AST-1207730] ; [AST-1207752] ; [MRI-1228509] ; [OPP-1248097] ; [AST-1310896] ; [AST-1312651] ; [AST-1337663] ; [AST-1440254] ; [AST-1555365] ; [AST-1715061] ; [AST-1615796] ; [AST-1716327] ; [OISE-1743747] ; [AST-1816420]
源URL[http://ir.ynao.ac.cn/handle/114a53/23044]  
Collection云南天文台_丽江天文观测站(南方基地)
云南天文台_中国科学院天体结构与演化重点实验室
Corresponding AuthorRoelofs, F.
Affiliation1.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA
2.NOVA, POB 9513, NL-2300 RA Leiden, Netherlands
3.Radboud Univ Nijmegen, Dept Astrophys, IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands
4.Rhodes Univ, Ctr Radio Astron Tech & Technol, Dept Phys & Elect, ZA-6140 Grahamstown, South Africa
5.Univ Pretoria, Dept Phys, Lynnwood Rd, ZA-0083 Pretoria, South Africa
6.Goethe Univ Frankfurt, Inst Theoret Phys, Max Von Laue Str 1, D-60438 Frankfurt, Germany
7.Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
8.Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
9.Harvard Univ, Black Hole Initiat, 20 Garden St, Cambridge, MA 02138 USA
10.CALTECH, 1200 East Calif Blvd, Pasadena, CA 91125 USA
Recommended Citation
GB/T 7714
Roelofs, F.,Janssen, M.,Natarajan, I,et al. SYMBA: An end-to-end VLBI synthetic data generation pipeline Simulating Event Horizon Telescope observations of M 87[J]. ASTRONOMY & ASTROPHYSICS,2020,636:19.
APA Roelofs, F..,Janssen, M..,Natarajan, I.,Deane, R..,Davelaar, J..,...&Zhu, Z..(2020).SYMBA: An end-to-end VLBI synthetic data generation pipeline Simulating Event Horizon Telescope observations of M 87.ASTRONOMY & ASTROPHYSICS,636,19.
MLA Roelofs, F.,et al."SYMBA: An end-to-end VLBI synthetic data generation pipeline Simulating Event Horizon Telescope observations of M 87".ASTRONOMY & ASTROPHYSICS 636(2020):19.

入库方式: OAI收割

来源:云南天文台

浏览0
下载0
收藏0
其他版本

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.