Zobrazeno 1 - 10 of 232 pro vyhledávání: '"D. Fassnacht"'
1
A lensed radio jet at milliarcsecond resolution I: Bayesian comparison of parametric lens models
Autor: Devon M Powell, Simona Vegetti, J P McKean, Cristiana Spingola, Hannah R Stacey, Christopher D Fassnacht
Publikováno v: Monthly Notices of the Royal Astronomical Society, 516, 1808-1828. Oxford University Press
We investigate the mass structure of a strong gravitational lens galaxy at $z=0.350$, taking advantage of the milli-arcsecond (mas) angular resolution of very long baseline interferometric (VLBI) observations. In the first analysis of its kind at thi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35c4152c3c7f65266bcc8c083906e267
https://doi.org/10.1093/mnras/stac2350
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2
SHARP - VIII. J0924+0219 lens mass distribution and time-delay prediction through adaptive-optics imaging
Autor: Geoff C-F Chen, Christopher D Fassnacht, Sherry H Suyu, Léon V E Koopmans, David J Lagattuta, John P McKean, Matt W Auger, Simona Vegetti, Tommaso Treu
Publikováno v: Monthly Notices of the Royal Astronomical Society, 2022, Vol.513(2), pp.2349-2359 [Peer Reviewed Journal]
Monthly Notices of the Royal Astronomical Society, 513(2), 2349-2359. Oxford University Press
Strongly lensed quasars can provide measurements of the Hubble constant ($H_{0}$) independent of any other methods. One of the key ingredients is exquisite high-resolution imaging data, such as Hubble Space Telescope (HST) imaging and adaptive-optics
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6816ca25e9de0a5f707015a8d0e85d25
https://research.rug.nl/en/publications/f19d433d-ec46-4bf2-a5a3-21d3dd32d486
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4
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 study
Autor: D Bayer, L V E Koopmans, J P McKean, S Vegetti, T Treu, C D Fassnacht, K Glazebrook
While the direct detection of the dark-matter particle remains very challenging, the nature of dark matter could be possibly constrained by comparing the observed abundance and properties of small-scale sub-galactic mass structures with predictions f
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5086d2770bc9bdea773f1282c509531c
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6
Time delay lens modelling challenge
Autor: Daniel Gilman, Tommaso Treu, G. Despali, Christopher D. Fassnacht, Jonathan P. Coles, Frederic Courbin, Anupreeta More, Hyungsuk Tak, Matthew W. Auger, Hum Chand, Matteo Frigo, Philip J. Marshall, M. Millon, Dominique Sluse, A. Galan, L. Van de Vyvere, Geoff C. F. Chen, Joshua Yao-Yu Lin, Da Xu, Anowar J. Shajib, Philipp Denzel, Xuheng Ding, Ji Won Park, Simona Vegetti, Simon Birrer, Stefan Hilbert, Liliya L. R. Williams, Vivien Bonvin, Prasenjit Saha, S. R. Kumar
Publikováno v: Monthly Notices of the Royal Astronomical Society
In recent years, breakthroughs in methods and data have enabled gravitational time delays to emerge as a very powerful tool to measure the Hubble constant $H_0$. However, published state-of-the-art analyses require of order 1 year of expert investiga
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfe64e6f442b7becbf3ad7d972682ff3
https://doi.org/10.1093/mnras/stab484
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7
H0LiCOW XII. Lens mass model of WFI2033-4723 and blind measurement of its time-delay distance and H0
Autor: Alessandro Sonnenfeld, Sherry H. Suyu, Simon Birrer, Kenneth C. Wong, Geoff C. F. Chen, Aleksi Halkola, James H. H. Chan, Tommaso Treu, Anowar J. Shajib, Matthew W. Auger, Léon V. E. Koopmans, Dominique Sluse, Christopher D. Fassnacht, Philip J. Marshall, Vivien Bonvin, Cristian E. Rusu, Frederic Courbin, Stefan Hilbert
Publikováno v: Monthly Notices of the Royal Astronomical Society, 498(1), 1440-1468. Oxford University Press
Monthly Notices of the Royal Astronomical Society
We present the lens mass model of the quadruply-imaged gravitationally lensed quasar WFI2033-4723, and perform a blind cosmographical analysis based on this system. Our analysis combines (1) time-delay measurements from 14 years of data obtained by t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2996c63069ebb880789e7bc846f8d04d
https://doi.org/10.1093/mnras/stz3451
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8
The properties of radio and mid-infrared detected galaxies and the effect of environment on the co-evolution of AGN and star formation at z ∼ 1
Autor: Lu Shen, Brian C. Lemaux, Roy R. Gal, Adam Tomczak, Gordon K. Squires, Debora Pelliccia, Po-Feng Wu, Denise Hung, Christopher D. Fassnacht, N. Miller, Lori M. Lubin, Dale D. Kocevski, John McKean
Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 494(4), 5374-5395. Oxford University Press
In this study we investigate 179 radio-IR galaxies drawn from a sample of spectroscopically-confirmed galaxies that are detected in radio and mid-infrared (MIR) in the redshift range of $0.55 \leq z \leq 1.30$ in the Observations of Redshift Evolutio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c1269959962f4b49d663cc0fd4aece0
https://doi.org/10.1093/mnras/staa1005
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9
Detecting low-mass haloes with strong gravitational lensing I:the effect of data quality and lensing configuration
Autor: Giulia Despali, Simona Vegetti, Simon D M White, Devon M Powell, Hannah R Stacey, Christopher D Fassnacht, Francesca Rizzo, Wolfgang Enzi
Publikováno v: Despali, G, Vegetti, S, White, S D M, Powell, D M, Stacey, H R, Fassnacht, C D, Rizzo, F & Enzi, W 2022, ' Detecting low-mass haloes with strong gravitational lensing I : the effect of data quality and lensing configuration ', Monthly Notices of the Royal Astronomical Society, vol. 510, no. 2, pp. 2480-2494 . https://doi.org/10.1093/mnras/stab3537
Monthly Notices of the Royal Astronomical Society (MNRAS)
This paper aims to quantify how the lowest halo mass that can be detected with galaxy-galaxy strong gravitational lensing depends on the quality of the observations and the characteristics of the observed lens systems. Using simulated data, we measur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6418e3e8f3400aec5b6bf054b6bfb416
https://curis.ku.dk/ws/files/319534456/stab3537.pdf
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10
Erratum: Is every strong lens model unhappy in its own way? Uniform modelling of a sample of 13 quadruply+ imaged quasars
Autor: Santiago Avila, Carlos E. Cunha, Anupreeta More, Issha Kayo, David J. Brooks, S. Desai, Philip J. Marshall, Peter Doel, Simon Birrer, Josh Frieman, E. Suchyta, Kyler Kuehn, M. Smith, Ofer Lahav, Daniel Gruen, F. Ostrovski, G. Tarle, Matthew W. Auger, Sherry H. Suyu, E. Bertin, Juan Garcia-Bellido, T. M. C. Abbott, Veronica Motta, M. Carrasco Kind, Cristian E. Rusu, D. W. Gerdes, Christopher D. Fassnacht, J. Carretero, James H. H. Chan, E. J. Sanchez, Adriano Agnello, B. Flaugher, I. Sevilla-Noarbe, Richard G. McMahon, Flavia Sobreira, A. Carnero Rosell, Anowar J. Shajib, B. Hoyle, Marcos Lima, Jennifer L. Marshall, D. L. Hollowood, Peter Melchior, N. Kuropatkin, Frederic Courbin, G. Gutierrez, G. Meylan, M. March, M. E. C. Swanson, A. R. Walker, E. Buckley-Geer, David J. James, Tom Shanks, Timo Anguita, L. N. da Costa, Felipe Menanteau, M. A. G. Maia, J. De Vicente, Pablo Fosalba, Ramon Miquel, Tommaso Treu, Paul L. Schechter, Thomas E. Collett, J. Annis, N. D. Morgan, Marcelle Soares-Santos, S. Allam, Robert A. Gruendl, Huan Lin, C. Lemon, W. G. Hartley, Masamune Oguri, A. A. Plazas, V. Scarpine
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Monthly Notices of the Royal Astronomical Society, 2021, Vol.501(2), pp.2833-2835 [Peer Reviewed Journal]
The paper ‘Is every strong lens model unhappy in its own way? Uniform modelling of a sample of 13 quadruply+ imaged quasars’ was published in MNRAS, 483, 4, 5649–5671 (2019). The coordinate values of the image positions in table 4 were wrongly
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::539d45732f0f0acd9d7857c5e24742b5
https://doi.org/10.1093/mnras/staa3562
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