Publications
You can find my papers on ADS or on ArXiv.
Select Publications
M. Wielgus, S. Issaoun, I. Marti-Vidal, R. Emami, C.D. Brinkerink, C. Goddi, E. Fomalont (2023) The internal Faraday screen of Sagittarius A*. Under review at A&A. ArXiv
N. La Bella, S. Issaoun, F. Roelofs, C. Fromm, H, Falcke (2023) Expanding Sgr A* dynamical imaging capabilities with an African extension to the Event Horizon Telescope. A&A, Vol. 672, A16. A&A Open Access
A. Chael, S. Issaoun, D.W. Pesce, M.D. Johnson, A. Ricarte, C. Fromm, Y. Mizuno (2023) Multifrequency Black Hole Imaging for the Next-generation Event Horizon Telescope. ApJ, Vol. 945, 40.ApJ Open Access
S. Issaoun, D. Pesce, F. Roelofs, A. Chael, R. Dodson, M. Rioja, K. Akiyama, R. Aran, L. Blackburn, S.S. Doeleman, V. Fish, G. Fitzpatrick, M.D. Johnson, G. Narayanan, A. Raymond, R. Tilanus (2023) Enabling Transformational ngEHT Science via the Inclusion of 86 GHz Capabilities. Galaxies, Vol 11, 28. Galaxies Open Access
S. Jorstad, M. Wielgus, R. Licco, S. Issaoun, A. Broderick, D.W. Pesce, EHT Collaboration et al. (2023) The Event Horizon Telescope Image of the Quasar NRAO 530. ApJ, Vol. 943, 170. ApJ Open Access
S. Issaoun, M. Wielgus, S. Jorstad, T.P. Krichbaum, L. Blackburn, M. Janssen, C.K. Chan, EHT Collaboration et al. (2022) Resolving the Inner Parsec of the Blazar J1924-2914 with the Event Horizon Telescope, ApJ, 934, 145. ApJL Open Access
M. Wielgus, N. Marchili, I. Marti-Vidal, G. Keating, V. Ramakrishnan, P. Tiede, E. Fomalont, S. Issaoun, J. Nielsen, M. Nowak, EHT Collaboration et al. (2022) Millimeter Light Curves of Sagittarius A* Observed during the 2017 Event Horizon Telescope Campaign. ApJL, Vol. 930, L19. ApJL Open Access
EHT Collaboration et al. (2022a-f) First EHT Sgr A* Results. I-VI, Volume 930, L12-L17. ApJL Open Access
I. Cho, G.-Y. Zhao, T. Kawashima, M. Kino, K. Akiyama, M.D. Johnson, S. Issaoun, K. Moriyama, +57 authors (2022) The Intrinsic Structure of Sagittarius A* at 1.3 cm and 7 mm. ApJ, Vol. 926, 108. ApJ Open Access
S. Issaoun, M.D. Johnson, L. Blackburn, A. Broderick, P. Tiede, M. Wielgus, S.S. Doeleman, H.~Falcke, K. Akiyama, G.C. Bower, C.D. Brinkerink, A. Chael, I. Cho, J.L. Gómez, A. Hernández-Gómez, D. Hughes, M. Kino, T.P. Krichbaum, E. Liuzzo, L. Loinard, S. Markoff, D.P. Marrone, Y. Mizuno, J.M. Moran, Y. Pidopryhora, E. Ros, K. Rygl, Z.-Q. Shen, and J.~Wagner (2021) Persistent Non-Gaussian Structure in the Image of Sagittarius A* at 86 GHz. Accepted to ApJ. ArXiv
EHT Collaboration et al. (2021a,b) First EHT M87 Results. VII-VIII, Volume 910, L12-L13. ApJL Open Access
J.Y. Kim, T. P. Krichbaum, A. E. Broderick, M. Wielgus, L. Blackburn, J. L. Gómez, M. D. Johnson, K. L. Bouman, A. Chael, K. Akiyama, S. Jorstad, A. P. Marscher, S. Issaoun, M. Janssen, C.-K. Chan, T. Savolainen, D. W. Pesce, F. Özel, EHT Collaboration et al. (2020) Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution. Accepted to A&A. A&A Open Access
L. Blackburn, C.-K. Chan, G. B. Crew, V. L. Fish, S. Issaoun, M. D. Johnson, M. Wielgus, K. Akiyama, J. Barrett, K. L. Bouman, R. Cappallo, A. A. Chael, M. Janssen, C. J. Lonsdale, S. S. Doeleman (2019) EHT-HOPS pipeline for millimeter VLBI data reduction. ApJ, Volume 882, 23. ArXiv
S. Issaoun, M. D. Johnson, L. Blackburn, M. Mościbrodzka, A. Chael, H. Falcke (2019) VLBI imaging of black holes via second moment regularization. A&A, 629, A32. ArXiv
EHT Collaboration et al. (2019a-f) First EHT M87 Results. I-VI, Volume 875, L1-L6. ApJL Open Access
S. Issaoun, M. D. Johnson, L. Blackburn, C. D. Brinkerink, M. Mościbrodzka, A. Chael, C. Goddi, I. Marti-Vidal, J. Wagner, S. S. Doeleman, H. Falcke, T. P. Krichbaum,+ 32 others (2019) The Size, Shape and Scattering of Sagittarius A* at 86 GHz: First VLBI with ALMA. ApJ, Volume 871, 30. ArXiv
C. D. Brinkerink, C. Müller, H. D. Falcke, S. Issaoun, K. Akiyama, G. C. Bower, T. P. Krichbaum, A. T. Deller, E. Castillo, S. S. Doeleman, R. Fraga-Encinas, C. Goddi, A. Hernández-Gómez,D. H. Hughes, M. Kramer, J. Léon-Tavares, L. Loinard, A. Montaña, M. Mościbrodzka, G. N. Ortiz-León, D. Sanchez-Arguelles,R. P. J. Tilanus, G. W. Wilson, A. Zensus (2019) Micro-arcsecond structure of Sagittarius A* revealed by high-sensitivity 86 GHz VLBI observations. A&A, Volume 621, A119. ArXiv
S. Issaoun, C. Goddi, L.D. Matthews, L.J. Greenhill, M.D. Gray, E.M.L. Humphreys, C.J. Chandler, M. Krumholz, H. Falcke (2017) VLBA imaging of the 3mm SiO masers in the disk-wind of the high-mass protostellar system Orion Source I. A&A, Volume 606, A126. ArXiv
Collaboration Memos
S. Steel, M. Wielgus, L. Blackburn, S. Issaoun, M. D. Johnson (2019) Global calibration of instrumental polarimetric phase gains. Memo CE-2019-03 for the EHT project.
M. Wielgus, L. Blackburn, S. Issaoun, M. Janssen, M. D. Johnson, J.-Y. Koay (2019) EHT data set validation and characterization of errors. Memo CE-2019-02 for the EHT project.
M. Janssen, L. Blackburn, S. Issaoun, T. P. Krichbaum, M. Wielgus (2019) Flux Density Calibration of the EHT Array. Memo CE-2019-01 for the EHT project.
S. Issaoun, H. Falcke, P. Friberg, M. Janssen, R. Tilanus, J. Wouterloot (2018) James Clerk Maxwell Telescope Calibration Memo: Time dependence of the aperture efficiency and DPFU. Memo CE-2018-01 for the EHT project.
S. Issaoun, T.W. Folkers, D.P. Marrone, J. Kim, L. Blackburn, H. Falcke (2017) Sub-Millimeter Telescope Calibration Memo 3: A comprehensive look at the absolute amplitude calibration procedure. Memo CE-2017-03 for the EHT project.
S. Issaoun, T.W. Folkers, L. Blackburn, D.P. Marrone, T. Krichbaum, M. Janssen, I. Marti-Vidal, H. Falcke (2017) A conceptual overview of single-dish absolute amplitude calibration. Memo CE-2017-02 for amplitude calibration of EHT observations.
S. Issaoun, T.W. Folkers, H. Falcke (2016) Sub-Millimeter Telescope Calibration Memo 2: Using 1.3 mm Single-Dish Continuum Observations of April 2016. Memo CE-2017-01 for the EHT.
S. Issaoun, H. Falcke (2016) Sub-Millimeter Telescope Calibration Memo 1: Using 1.3 mm Single-Dish Continuum Observations of March 2015. Memo CE-2016-01 for the EHT project.