CF
C. D. Fassnacht
astro-ph.COastro-ph.GAastro-phastro-ph.IMastro-ph.HEhep-exastro-ph.EPastro-ph.SRhep-phmath.CV
On Valency
published · living versionsW_37jcc2s9·v1 · currentpublished
H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: to 3.8% precision from strong lensing in a flat CDM model
with V. Bonvin, F. Courbin, S. H. Suyu, P. J. Marshall +13
1 version
W_f2gcv98u·v1published
Preprints & journals
190 papers in the corpus · 1996–2026TDCOSMO XXXI: New techniques in line-of-sight studies of time delay lenses2609.11652v1 · Daniel Johnson, Devon Williams, Chris Fassnacht et al.2026 · 0 citationsarXiv
TDCOSMO. XXVII. JWST-based Lens Models and H Measurement of WFI2033, HE0435, and PG11152608.27566v1 · D. M. Williams, T. Treu, D. P. Johnson et al.2026 · 0 citationsarXiv
MAGNUS III: Mild evolution of the total density slope in massive early-type galaxies since z$\sim$1 from dynamical modeling of MUSE integral-field stellar kinematics2602.10347v1 · Pritom Mozumdar, Michele Cappellari, Christopher D. Fassnacht et al.2026 · 0 citationsarXiv
A possible challenge for Cold and Warm Dark Matter2601.02466v1 · S. Vegetti, S. D. M. White, J. P. McKean et al.2026 · 10 citationsarXiv
TDCOSMO. XXIII. Measurement of the Hubble constant from the doubly lensed quasar HE1104-18052512.03178v2 · Eric Paic, Fr'ed'eric Courbin, Christopher D. Fassnacht et al.2025 · 5 citationsA&A 706, A270 (2026)
MAGNUS I: A MUSE-DEEP Sample of Early-type Galaxies at Intermediate Redshift2510.23863v2 · Pritom Mozumdar, Michele Cappellari, Christopher D. Fassnacht et al.2025 · 0 citationsApJ 1009 149 (2026)
MAGNUS II: Rotational support of massive early-type galaxies decreased over the past 7 billion years2510.23888v2 · Pritom Mozumdar, Michele Cappellari, Christopher D. Fassnacht et al.2025 · 1 citationApJ 1009 87 (2026)
A million-solar-mass object detected at cosmological distance using gravitational imaging2510.07382v1 · D. M. Powell, J. P. McKean, S. Vegetti et al.2025 · 15 citationsarXiv
TDCOSMO XXIV. First spatially resolved kinematics of the lens galaxy obtained using JWST-NIRSpec to improve time-delay cosmography2506.21665v2 · Anowar J. Shajib, Tommaso Treu, Sherry H. Suyu et al.2025 · 4 citationsarXiv
TDCOSMO 2025: Cosmological constraints from strong lensing time delays2506.03023v4 · Simon Birrer, Elizabeth J. Buckley-Geer, Michele Cappellari et al.2025 · 43 citationsA&A 704, A63 (2025)
SHARP -- IX. The dense, low-mass perturbers in B1938+666 and J0946+1006: implications for cold and self-interacting dark matter2505.07944v2 · Maryam Tajalli, Simona Vegetti, Conor M. O'Riordan et al.2025 · 7 citationsMon Not R Astron Soc (2025) 540-564
TDCOSMO XVII. New time delays in 22 lensed quasars from optical monitoring with the ESO-VST 2.6m and MPG 2.2m telescopes2504.02932v1 · Fr'ed'eric Dux, Martin Millon, Aymeric Galan et al.2025 · 11 citationsA&A 697, A139 (2025)
A Multiwavelength Portrait of the 3C 220.3 Lensed System2407.21020v2 · S'oley 'O. Hyman, Belinda J. Wilkes, S.P. Willner et al.2024 · 1 citationApJ 974 171 (2024)
Detecting low-mass haloes with strong gravitational lensing II: constraints on the density profiles of two detected subhaloes2407.12910v1 · Giulia Despali, Felix M. Heinze, Christopher D. Fassnacht et al.2024 · 24 citationsA&A 699, A222 (2025)
TDCOSMO. XVI. Measurement of the Hubble Constant from the Lensed Quasar WGD$\,-$40082406.02683v2 · Kenneth C. Wong, Fr'ed'eric Dux, Anowar J. Shajib et al.2024 · 18 citationsA&A 689, A168 (2024)
TDCOSMO XV: Population Analysis of Lines of Sight of 25 Strong Galaxy-Galaxy Lenses with Extreme Value Statistics2403.10666v3 · Patrick R. Wells, Christopher D. Fassnacht, Simon Birrer et al.2024 · 15 citationsA&A 689, A87 (2024)
General Multipoles and Their Implications for Dark Matter Inference2403.08895v2 · Jacob S. Cohen, Christopher D. Fassnacht, Conor M. O'Riordan et al.2024 · 16 citationsarXiv
Complex angular structure of three elliptical galaxies from high-resolution ALMA observations of strong gravitational lenses2403.04850v3 · H. R. Stacey, D. M. Powell, S. Vegetti et al.2024 · 18 citationsA&A 688, A110 (2024)
JWST lensed quasar dark matter survey I: Description and First Results2309.10101v1 · A. M. Nierenberg, R. E. Keeley, D. Sluse et al.2023 · 29 citationsarXiv
Strong gravitational lensing as a probe of dark matter2306.11781v1 · S. Vegetti, S. Birrer, G. Despali et al.2023 · 85 citationsarXiv
TDCOSMO XIV: Practical Techniques for Estimating External Convergence of Strong Gravitational Lens Systems and Applications to the SDSS J0924+0219 System2302.03176v2 · Patrick Wells, Christopher D. Fassnacht, C. E. Rusu2023 · 14 citationsA&A 676, A95 (2023)
Probing sub-galactic mass structure with the power spectrum of surface-brightness anomalies in high-resolution observations of galaxy-galaxy strong gravitational lenses. I. Power-spectrum measurement and feasibility study2302.00480v1 · D. Bayer, L. V. E. Koopmans, J. P. McKean et al.2023 · 13 citationsarXiv
TDCOSMO. XII. Improved Hubble constant measurement from lensing time delays using spatially resolved stellar kinematics of the lens galaxy2301.02656v2 · Anowar J. Shajib, Pritom Mozumdar, Geoff C.-F. Chen et al.2023 · 103 citationsA&A 673, A9 (2023)
TDCOSMO. XI. New lensing galaxy redshift and velocity dispersion measurements from Keck spectroscopy of eight lensed quasar systems2209.14320v2 · P. Mozumdar, C. D. Fassnacht, T. Treu et al.2022 · 13 citationsA&A 672, A20 (2023)
A lensed radio jet at milli-arcsecond resolution I: Bayesian comparison of parametric lens models2207.03375v2 · Devon M. Powell, Simona Vegetti, J. P. McKean et al.2022 · 44 citationsarXiv
STRIDES: Automated uniform models for 30 quadruply imaged quasars2206.04696v1 · T. Schmidt, T. Treu, S. Birrer et al.2022 · 66 citationsarXiv
Snowmass2021: Vera C. Rubin Observatory as a Flagship Dark Matter Experiment2203.07252v1 · Yao-Yuan Mao, Annika H. G. Peter, Susmita Adhikari et al.2022 · 5 citationsarXiv
Detecting low-mass haloes with strong gravitational lensing I: the effect of data quality and lensing configuration2111.08718v2 · Giulia Despali, Simona Vegetti, Simon D. M. White et al.2021 · 38 citationsarXiv
SHARP VIII: J0924+0219 lens mass distribution and time-delay prediction through adaptive-optics imaging2107.10304v1 · Geoff C.-F. Chen, Christopher D. Fassnacht, Sherry H. Suyu et al.2021 · 11 citationsarXiv
Point-spread function reconstruction of adaptive-optics imaging: Meeting the astrometric requirements for time-delay cosmography2106.11060v2 · Geoff C.-F. Chen, Tommaso Treu, Christopher D. Fassnacht et al.2021 · 9 citationsarXiv
Implications of the Environments of Radio-detected AGN in a Complex Protostructure at z$\sim$3.32103.03441v2 · Lu Shen, Brian C. Lemaux, Lori M. Lubin et al.2021 · 26 citationsarXiv
An Optical Observational Cluster Mass Function at with the ORELSE Survey2101.02215v1 · D. Hung, B. C. Lemaux, R. R. Gal et al.2021 · 11 citationsarXiv
TDCOSMO VI: Distance Measurements in Time-delay Cosmography under the Mass-sheet transformation2011.06002v1 · Geoff C.-F. Chen, Christopher D. Fassnacht, Sherry H. Suyu et al.2020 · 24 citationsA&A 652, A7 (2021)
High-resolution imaging follow-up of doubly imaged quasars2011.01971v2 · Anowar J. Shajib, Eden Molina, Adriano Agnello et al.2020 · 6 citationsarXiv
Joint constraints on thermal relic dark matter from strong gravitational lensing, the Lyman- forest, and Milky Way satellites2010.13802v3 · Wolfgang Enzi, Riccardo Murgia, Oliver Newton et al.2020 · 119 citationsMon.Not.Roy.Astron.Soc. 506 (2021), 4, 5848-5862
Extended radio AGN at z ~ 1 in the ORELSE survey: The confining effect of dense environments2009.03343v1 · Lu Shen, Guilin Liu, Mengfei Zhang et al.2020 · 8 citationsarXiv
TDCOSMO IV: Hierarchical time-delay cosmography -- joint inference of the Hubble constant and galaxy density profiles2007.02941v3 · S. Birrer, A. J. Shajib, A. Galan et al.2020 · 393 citationsA&A 643, A165 (2020)
Time Delay Lens Modelling Challenge2006.08619v2 · X. Ding, T. Treu, S. Birrer et al.2020 · 48 citationsMNRAS, (2021), 503, 1096
Testing the Evolution of the Correlations between Supermassive Black Holes and their Host Galaxies using Eight Strongly Lensed Quasars2005.13550v2 · Xuheng Ding, Tommaso Treu, Simon Birrer et al.2020 · 21 citationsMNRAS, (2021), 501, 269
H0LiCOW XI. A weak lensing measurement of the external convergence in the field of the lensed quasar B1608+656 using HST and Subaru deep imaging2005.12295v1 · O. Tihhonova, F. Courbin, D. Harvey et al.2020 · 22 citationsarXiv
STRIDES: Spectroscopic and photometric characterization of the environment and effects of mass along the line of sight to the gravitational lenses DES J0408-5354 and WGD 2038-40082003.12117v2 · E. J. Buckley-Geer, H. Lin, C. Rusu et al.2020 · 21 citationsarXiv
The STRong lensing Insights into the Dark Energy Survey (STRIDES) 2017/2018 follow-up campaign: Discovery of 10 lensed quasars and 10 quasar pairs1912.09133v1 · C. Lemon, M. W. Auger, R. McMahon et al.2019 · 55 citationsarXiv
TDCOSMO. I. An exploration of systematic uncertainties in the inference of from time-delay cosmography1912.08027v3 · M. Millon, A. Galan, F.Courbin et al.2019 · 230 citationsA&A 639, A101 (2020)
The Properties of Radio and Mid-infrared Detected Galaxies and the Effect of Environment on the Co-evolution of AGN and Star Formation at 1911.00024v1 · Lu Shen, Brian C. Lemaux, Lori M. Lubin et al.2019 · 14 citationsarXiv
STRIDES: a 3.9 per cent measurement of the Hubble constant from the strong lens system DES J0408-53541910.06306v3 · A. J. Shajib, S. Birrer, T. Treu et al.2019 · 234 citationsarXiv
Double dark matter vision: twice the number of compact-source lenses with narrow-line lensing and the WFC3 grism1908.06344v2 · A. M. Nierenberg, D. Gilman, T. Treu et al.2019 · 59 citationsarXiv
H0LiCOW XIII. A 2.4% measurement of from lensed quasars: tension between early and late-Universe probes1907.04869v2 · Kenneth C. Wong, Sherry H. Suyu, Geoff C.-F. Chen et al.2019 · 1,174 citationsarXiv
A SHARP view of H0LiCOW: from three time-delay gravitational lens systems with adaptive optics imaging1907.02533v1 · Geoff C.-F. Chen, Christopher D. Fassnacht, Sherry. H. Suyu et al.2019 · 245 citationsarXiv
H0LiCOW XII. Lens mass model of WFI2033-4723 and blind measurement of its time-delay distance and 1905.09338v2 · Cristian E. Rusu, Kenneth C. Wong, Vivien Bonvin et al.2019 · 116 citationsarXiv
H0LiCOW X: Spectroscopic/imaging survey and galaxy-group identification around the strong gravitational lens system WFI2033-47231905.08800v2 · D. Sluse, C. E. Rusu, C. D. Fassnacht et al.2019 · 38 citationsarXiv
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