Search Results - "Dabbech, A"

Scalable precision wide-field imaging in radio interferometry: I. uSARA validated on ASKAP data by Wilber, A G, Dabbech, A, Jackson, A, Wiaux, Y

“…ABSTRACT As Part I of a paper series showcasing a new imaging framework, we consider the recently proposed unconstrained Sparsity Averaging Reweighted Analysis…”
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Cygnus A super-resolved via convex optimization from VLA data by Dabbech, A, Onose, A, Abdulaziz, A, Perley, R A, Smirnov, O M, Wiaux, Y

“…Abstract We leverage the Sparsity Averaging Re-weighted Analysis approach for interferometric imaging, that is based on convex optimization, for the…”
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Scalable precision wide-field imaging in radio interferometry – II. AIRI validated on ASKAP data by Wilber, A G, Dabbech, A, Terris, M, Jackson, A, Wiaux, Y

“…ABSTRACT Accompanying Part I, this sequel delineates a validation of the recently proposed AI for Regularization in radio-interferometric Imaging (AIRI)…”
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Cygnus A jointly calibrated and imaged via non-convex optimization from VLA data by Dabbech, A, Repetti, A, Perley, R A, Smirnov, O M, Wiaux, Y

“…ABSTRACT Radio interferometric (RI) data are noisy undersampled spatial Fourier components of the unknown radio sky affected by direction-dependent antenna…”
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First AI for Deep Super-resolution Wide-field Imaging in Radio Astronomy: Unveiling Structure in ESO 137-006 by Dabbech, A., Terris, M., Jackson, A., Ramatsoku, M., Smirnov, O. M., Wiaux, Y.

“…Abstract We introduce the first AI-based framework for deep, super-resolution, wide-field radio interferometric imaging and demonstrate it on observations of…”
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The w-effect in interferometric imaging: from a fast sparse measurement operator to superresolution by Dabbech, A., Wolz, L., Pratley, L., McEwen, J. D., Wiaux, Y.

“…Abstract Modern radio telescopes, such as the Square Kilometre Array, will probe the radio sky over large fields of view, which results in large w-modulations…”
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Astronomical image deconvolution using sparse priors: An analysis-by-synthesis approach by Dabbech, A., Mary, D., Ferrari, C.

“…This paper deals with the deconvolution of faint diffuse astronomical sources buried in the PSF sidelobes of surrounding bright compact sources, and in the…”
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NenUFAR: Instrument description and science case by Zarka, P., Tagger, M., Denis, L., Girard, J. N., Konovalenko, A., Atemkeng, M., Arnaud, M., Azarian, S., Barsuglia, M., Bonafede, A., Boone, F., Bosma, A., Boyer, R., Branchesi, M., Briand, C., Cecconi, B., Celestin, S., Charrier, D., Chassande-Mottin, E., Coffre, A., Cognard, I., Combes, F., Corbel, S., Courte, C., Dabbech, A., Daiboo, S., Dallier, R., Dumez-Viou, C., El Korso, M. N., Falgarone, E., Falkovych, I., Ferrari, A., Ferrari, C., Ferriere, K., Fevotte, C., Fialkov, A., Fullekrug, M., Gerard, E., Griebmeier, J.-M, Guiderdoni, B., Guillemot, L., Hessels, J., Koopmans, L., Kondratiev, V., Lamy, L., Lanz, T., Larzabal, P., Lehnert, M., Levrier, F., Loh, A., Macario, G., Maintoux, J.-J, Martin, L., Mary, D., Masson, S., Miville-Deschenes, M.-A, Oberoi, D., Panchenko, M., Pandey-Pommier, M., Petiteau, A., Pincon, J.-L, Revenu, B., Rible, F., Richard, C., Rucker, H. O., Salome, P., Semelin, B., Serylak, M., Smirnov, O., Stappers, B., Taffoureau, C., Tasse, C., Theureau, G., Tokarsky, P., Torchinsky, S., Ulyanov, O., van Driel, W., Vasylieva, I., Vaubaillon, J., Vazza, F., Vergani, S., Was, M., Weber, R., Zakharenko, V.

“…NenuFAR is both a giant extension of the LOFAR and a large standalone instrument in the low-frequency range (10-85 MHz). It was designed in Nançay with…”
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