A D-term Modeling Code (DMC) for Simultaneous Calibration and Full-Stokes Imaging of Very Long Baseline Interferometric Data

被引：23

作者：

Pesce, Dominic W. ^{[1
,2
]}

机构：

[1] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

[2] Harvard Univ, Black Hole Initiat, 20 Garden St, Cambridge, MA 02138 USA

来源：

ASTRONOMICAL JOURNAL | 2021年 / 161卷 / 04期

关键词：

Radio interferometry; Very long baseline interferometry; Polarimetry; Interferometry; UNDERSTANDING RADIO POLARIMETRY; SELF-CALIBRATION; KINEMATICS;

D O I：

10.3847/1538-3881/abe3f8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we present DMC, a model and associated tool for polarimetric imaging of very long baseline interferometry data sets that simultaneously reconstructs the full-Stokes emission structure along with the station-based gain and leakage calibration terms. DMC formulates the imaging problem in terms of posterior exploration, which is achieved using Hamiltonian Monte Carlo sampling. The resulting posterior distribution provides a natural quantification of uncertainty in both the image structure and the data calibration. We run DMC on both synthetic and real data sets, the results of which demonstrate its ability to accurately recover both the image structure and calibration quantities, as well as to assess their corresponding uncertainties. The framework underpinning DMC is flexible, and its specific implementation is under continued development.

引用

页数：12

共 43 条

[1] Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-energy Emission from Prompt to Afterglow [J].

Ajello, M. ;

Arimoto, M. ;

Axelsson, M. ;

Baldini, L. ;

Barbiellini, G. ;

Bastieri, D. ;

Bellazzini, R. ;

Berretta, A. ;

Bissaldi, E. ;

Blandford, R. D. ;

Bonino, R. ;

Bottacini, E. ;

Bregeon, J. ;

Bruel, P. ;

Buehler, R. ;

Burns, E. ;

Buson, S. ;

Cameron, R. A. ;

Caputo, R. ;

Caraveo, P. A. ;

Cavazzuti, E. ;

Chen, S. ;

Chiaro, G. ;

Ciprini, S. ;

Cohen-Tanugi, J. ;

Costantin, D. ;

Cutini, S. ;

D'Ammando, F. ;

DeKlotz, M. ;

Luque, P. de la Torre ;

de Palma, F. ;

Desai, A. ;

Di Lalla, N. ;

Di Venere, L. ;

Dirirsa, F. Fana ;

Fegan, S. J. ;

Franckowiak, A. ;

Fukazawa, Y. ;

Funk, S. ;

Fusco, P. ;

Gargano, F. ;

Gasparrini, D. ;

Giglietto, N. ;

Gill, R. ;

Giordano, F. ;

Giroletti, M. ;

Granot, J. ;

Green, D. ;

Grenier, I. A. ;

Grondin, M. -H. .

ASTROPHYSICAL JOURNAL, 2020, 890 (01)

[2]

Akiyama K., 2019, Astrophys. J. Lett., V875, P6

[3] First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring [J].

Akiyama, Kazunori ;

Alberdi, Antxon ;

Alef, Walter ;

Asada, Keiichi ;

Azulay, Rebecca ;

Baczko, Anne-Kathrin ;

Ball, David ;

Balokovic, Mislav ;

Barrett, John ;

Bintley, Dan ;

Blackburn, Lindy ;

Boland, Wilfred ;

Bouman, Katherine L. ;

Bower, Geoffrey C. ;

Bremer, Michael ;

Brinkerink, Christiaan D. ;

Brissenden, Roger ;

Britzen, Silke ;

Broderick, Avery E. ;

Broguiere, Dominique ;

Bronzwaer, Thomas ;

Byun, Do-Young ;

Carlstrom, John E. ;

Chael, Andrew ;

Chan, Chi-kwan ;

Chatterjee, Shami ;

Chatterjee, Koushik ;

Chen, Ming-Tang ;

Chen, Yongjun ;

Cho, Ilje ;

Christian, Pierre ;

Conway, John E. ;

Cordes, James M. ;

Crew, Geoffrey B. ;

Cui, Yuzhu ;

Davelaar, Jordy ;

De Laurentis, Mariafelicia ;

Deane, Roger ;

Dempsey, Jessica ;

Desvignes, Gregory ;

Dexter, Jason ;

Doeleman, Sheperd S. ;

Eatough, Ralph P. ;

Falcke, Heino ;

Fish, Vincent L. ;

Fomalont, Ed ;

Fraga-Encinas, Raquel ;

Friberg, Per ;

Fromm, Christian M. ;

Gomez, Jose L. .

ASTROPHYSICAL JOURNAL LETTERS, 2019, 875 (01)

[4] First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole [J].

Akiyama, Kazunori ;

Alberdi, Antxon ;

Alef, Walter ;

Asada, Keiichi ;

Azulay, Rebecca ;

Baczko, Anne-Kathrin ;

Ball, David ;

Balokovic, Mislav ;

Barrett, John ;

Bintley, Dan ;

Blackburn, Lindy ;

Boland, Wilfred ;

Bouman, Katherine L. ;

Bower, Geoffrey C. ;

Bremer, Michael ;

Brinkerink, Christiaan D. ;

Brissenden, Roger ;

Britzen, Silke ;

Broderick, Avery E. ;

Broguiere, Dominique ;

Bronzwaer, Thomas ;

Byun, Do-Young ;

Carlstrom, John E. ;

Chael, Andrew ;

Chan, Chi-Kwan ;

Chatterjee, Shami ;

Chatterjee, Koushik ;

Chen, Ming-Tang ;

Chen, Yongjun ;

Cho, Ilje ;

Christian, Pierre ;

Conway, John E. ;

Cordes, James M. ;

Crew, Geoffrey B. ;

Cui, Yuzhu ;

Davelaar, Jordy ;

De Laurentis, Mariafelicia ;

Deane, Roger ;

Dempsey, Jessica ;

Desvignes, Gregory ;

Dexter, Jason ;

Doeleman, Sheperd S. ;

Eatough, Ralph P. ;

Falcke, Heino ;

Fish, Vincent L. ;

Fomalont, Ed ;

Fraga-Encinas, Raquel ;

Freeman, William T. ;

Friberg, Per ;

Fromm, Christian M. .

ASTROPHYSICAL JOURNAL LETTERS, 2019, 875 (01)

[5] First M87 Event Horizon Telescope Results. II. Array and Instrumentation [J].

Akiyama, Kazunori ;

Alberdi, Antxon ;

Alef, Walter ;

Asada, Keiichi ;

Azulay, Rebecca ;

Baczko, Anne-Kathrin ;

Ball, David ;

Balokovic, Mislav ;

Barrett, John ;

Bintley, Dan ;

Blackburn, Lindy ;

Boland, Wilfred ;

Bouman, Katherine L. ;

Bower, Geoffrey C. ;

Bremer, Michael ;

Brinkerink, Christiaan D. ;

Brissenden, Roger ;

Britzen, Silke ;

Broderick, Avery E. ;

Broguiere, Dominique ;

Bronzwaer, Thomas ;

Byun, Do-Young ;

Carlstrom, John E. ;

Chael, Andrew ;

Chan, Chi-Kwan ;

Chatterjee, Shami ;

Chatterjee, Koushik ;

Chen, Ming-Tang ;

Chen, Yongjun ;

Cho, Ilje ;

Christian, Pierre ;

Conway, John E. ;

Cordes, James M. ;

Crew, Geoffrey B. ;

Cui, Yuzhu ;

Davelaar, Jordy ;

De Laurentis, Mariafelicia ;

Deane, Roger ;

Dempsey, Jessica ;

Desvignes, Gregory ;

Dexter, Jason ;

Doeleman, Sheperd S. ;

Eatough, Ralph P. ;

Falcke, Heino ;

Fish, Vincent L. ;

Fomalont, Ed ;

Fraga-Encinas, Raquel ;

Friberg, Per ;

Fromm, Christian M. ;

Gomez, Jose L. .

ASTROPHYSICAL JOURNAL LETTERS, 2019, 875 (01)

[6] Imaging the Schwarzschild-radius-scale Structure of M87 with the Event Horizon Telescope Using Sparse Modeling [J].

Akiyama, Kazunori ;

Kuramochi, Kazuki ;

Ikeda, Shiro ;

Fish, Vincent L. ;

Tazaki, Fumie ;

Honma, Mareki ;

Doeleman, Sheperd S. ;

Broderick, Avery E. ;

Dexter, Jason ;

Moscibrodzka, Monika ;

Bouman, Katherine L. ;

Chael, Andrew A. ;

Zaizen, Masamichi .

ASTROPHYSICAL JOURNAL, 2017, 838 (01)

[7] Superresolution Full-polarimetric Imaging for Radio Interferometry with Sparse Modeling [J].

Akiyama, Kazunori ;

Ikeda, Shiro ;

Pleau, Mollie ;

Fish, Vincent L. ;

Tazaki, Fumie ;

Kuramochi, Kazuki ;

Broderick, Avery E. ;

Dexter, Jason ;

Moscibrodzka, Monika ;

Gowanlock, Michael ;

Honma, Mareki ;

Doeleman, Sheperd S. .

ASTRONOMICAL JOURNAL, 2017, 153 (04)

[8] INTERSTELLAR SCINTILLATION AND THE RADIO COUNTERPART OF THE FAST RADIO BURST FRB 150418 [J].

Akiyama, Kazunori ;

Johnson, Michael D. .

ASTROPHYSICAL JOURNAL LETTERS, 2016, 824 (01)

[9] Unified radio interferometric calibration and imaging with joint uncertainty quantification [J].

Arras, Philipp ;

Frank, Philipp ;

Leike, Reimar ;

Westermann, Ruediger ;

Ensslin, Torsten A. .

ASTRONOMY & ASTROPHYSICS, 2019, 627

[10]

Bengio Y, 2012, DEEP LEARN UNS FEAT

← 1 2 3 4 5 →