Search Results - "Vernardos, G."

Simulating time-varying strong lenses by Vernardos, G

“…ABSTRACT We present a self-consistent and versatile forward modelling software package that can produce time series and pixel-level simulations of time-varying…”
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Microlensing flux ratio predictions for Euclid by Vernardos, G

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A joint microlensing analysis of lensing mass and accretion disc models by Vernardos, G

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The very knotty lenser: Exploring the role of regularization in source and potential reconstructions using Gaussian process regression by Vernardos, G, Koopmans, L V E

“…ABSTRACT Reconstructing lens potentials and lensed sources can easily become an underconstrained problem, even when the degrees of freedom are low, due to…”
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LinKS: discovering galaxy-scale strong lenses in the Kilo-Degree Survey using convolutional neural networks by Petrillo, C E, Tortora, C, Vernardos, G, Koopmans, L V E, Verdoes Kleijn, G, Bilicki, M, Napolitano, N R, Chatterjee, S, Covone, G, Dvornik, A, Erben, T, Getman, F, Giblin, B, Heymans, C, de Jong, J T A, Kuijken, K, Schneider, P, Shan, H, Spiniello, C, Wright, A H

“…ABSTRACT We present a new sample of galaxy-scale strong gravitational lens candidates, selected from 904 deg2 of Data Release 4 of the Kilo-Degree Survey, i.e…”
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New High-quality Strong Lens Candidates with Deep Learning in the Kilo-Degree Survey by Li, R., Napolitano, N. R., Tortora, C., Spiniello, C., Koopmans, L. V. E., Huang, Z., Roy, N., Vernardos, G., Chatterjee, S., Giblin, B., Getman, F., Radovich, M., Covone, G., Kuijken, K.

“…We report new high-quality galaxy-scale strong lens candidates found in the Kilo-Degree Survey data release 4 using machine learning. We have developed a new…”
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High-quality Strong Lens Candidates in the Final Kilo-Degree Survey Footprint by Li, R., Napolitano, N. R., Spiniello, C., Tortora, C., Kuijken, K., Koopmans, L. V. E., Schneider, P., Getman, F., Xie, L., Long, L., Shu, W., Vernardos, G., Huang, Z., Covone, G., Dvornik, A., Heymans, C., Hildebrandt, H., Radovich, M., Wright, A. H.

“…Abstract We present 97 new high-quality strong lensing candidates found in the final ∼350 deg 2 that complete the full ∼1350 deg 2 area of the Kilo-Degree…”
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KiDS-SQuaD: The KiDS Strongly lensed Quasar Detection project by Spiniello, C, Agnello, A, Napolitano, N R, Sergeyev, A V, Getman, F I, Tortora, C, Spavone, M, Bilicki, M, Buddelmeijer, H, Koopmans, L V E, Kuijken, K, Vernardos, G, Bannikova, E, Capaccioli, M

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A new parameter space study of cosmological microlensing by Vernardos, G., Fluke, C. J.

“…Cosmological gravitational microlensing is a useful technique for understanding the structure of the inner parts of a quasar, especially the accretion disc and…”
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Testing Convolutional Neural Networks for finding strong gravitational lenses in KiDS by Petrillo, C E, Tortora, C, Chatterjee, S, Vernardos, G, Koopmans, L V E, Kleijn, G Verdoes, Napolitano, N R, Covone, G, Kelvin, L S, Hopkins, A M

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Projected Cosmological Constraints from Strongly Lensed Supernovae with the Roman Space Telescope by Pierel, J. D. R., Rodney, S., Vernardos, G., Oguri, M., Kessler, R., Anguita, T.

“…Abstract One of the primary mission objectives of the Roman Space Telescope is to investigate the nature of dark energy with a variety of methods. Observations…”
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Time-delay estimation in unresolved lensed quasars by Biggio, L, Domi, A, Tosi, S, Vernardos, G, Ricci, D, Paganin, L, Bracco, G

“…ABSTRACT Time-delay cosmography can be used to infer the Hubble parameter H0 by measuring the relative time delays between multiple images of gravitationally…”
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The effect of macromodel uncertainties on microlensing modelling of lensed quasars by Vernardos, G, Fluke, C J

“…Cosmological gravitational microlensing has been proven to be a powerful tool to constrain the structure of multiply imaged quasars, especially the accretion…”
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Microlensing of Strongly Lensed Quasars by Vernardos, G., Sluse, D., Pooley, D., Schmidt, R. W., Millon, M., Weisenbach, L., Motta, V., Anguita, T., Saha, P., O’Dowd, M., Peel, A., Schechter, P. L.

“…Strong gravitational lensing of quasars has the potential to unlock the poorly understood physics of these fascinating objects, as well as serve as a probe of…”
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Strong Gravitational Lensing as a Probe of Dark Matter by Vegetti, S., Birrer, S., Despali, G., Fassnacht, C. D., Gilman, D., Hezaveh, Y., Perreault Levasseur, L., McKean, J. P., Powell, D. M., O’Riordan, C. M., Vernardos, G.

“…Dark matter structures within strong gravitational lens galaxies and along their lines of sight leave a gravitational imprint on the multiple images of lensed…”
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HST imaging of four gravitationally lensed quasars by Bate, N F, Vernardos, G, O’Dowd, M J, Neri-Larios, D M, Webster, R L, Floyd, D J E, Barone-Nugent, R L, Labrie, K, King, A L, Yong, S-Y

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Strong Lensing by Galaxies by Shajib, A. J., Vernardos, G., Collett, T. E., Motta, V., Sluse, D., Williams, L. L. R., Saha, P., Birrer, S., Spiniello, C., Treu, T.

“…Strong gravitational lensing at the galaxy scale is a valuable tool for various applications in astrophysics and cosmology. Some of the primary uses of…”
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Spectroscopic confirmation and modelling of two lensed quadruple quasars in the Dark Energy Survey public footprint by Spiniello, C, Sergeyev, A V, Marchetti, L, Tortora, C, Napolitano, N R, Shalyapin, V, Agnello, A, Getman, F I, Vaccari, M, Serjeant, S, Koopmans, L V E, Baker, A J, Jarrett, T H, Covone, G, Vernardos, G

“…ABSTRACT Quadruply lensed quasars are extremely rare objects, but incredibly powerful cosmological tools. Only few dozen are known in the whole sky. Here we…”
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The Herschel-ATLAS: a sample of 500 mu m-selected lensed galaxies over 600 deg2 by Negrello, M, Amber, S, Amvrosiadis, A, Cai, Z-Y, Lapi, A, Gonzalez-Nuevo, J, DeZotti, G, Furlanetto, C, Maddox, S J, Allen, M, Bakx, T, Bussmann, R S, Cooray, A, Covone, G, Danese, L, Dannerbauer, H, Fu, H, Greenslade, J, Gurwell, M, Hopwood, R, E Koopmans, L V, Napolitano, N, Nayyeri, H, Omont, A, Petrillo, C E, Riechers, D A, Serjeant, S, Tortora, C, Valiante, E, Kleijn, G Verdoes, Vernardos, G, Wardlow, J L, Baes, M, Baker, A J, Bourne, N, Clements, D, Crawford, S M, Dye, S, Dunne, L, Eales, S, Ivison, R J, Marchetti, L, Michalowski, M J, Smith, M WL, Vaccari, M, vanderWerf, P

“…We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 ...m extracted from the Herschel Astrophysical Terahertz…”
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Finding strong gravitational lenses in the Kilo Degree Survey with Convolutional Neural Networks by Petrillo, C. E., Tortora, C., Chatterjee, S., Vernardos, G., Koopmans, L. V. E., Verdoes Kleijn, G., Napolitano, N. R., Covone, G., Schneider, P., Grado, A., McFarland, J.

“…Abstract The volume of data that will be produced by new-generation surveys requires automatic classification methods to select and analyse sources. Indeed,…”
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