Zobrazeno 1 - 10
of 52
pro vyhledávání: '"James H. H. Chan"'
Autor:
Joshua Fagin, Ji Won Park, Henry Best, James H. H. Chan, K. E. Saavik Ford, Matthew J. Graham, V. Ashley Villar, Shirley Ho, Matthew O’Dowd
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 104 (2024)
Quasars are bright and unobscured active galactic nuclei (AGN) thought to be powered by the accretion of matter around supermassive black holes at the centers of galaxies. The temporal variability of a quasar’s brightness contains valuable informat
Externí odkaz:
https://doaj.org/article/d08cce76401f44abb5c576d3871c81f3
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
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
Autor:
Kenneth C Wong, James H H Chan, Dani C-Y Chao, Anton T Jaelani, Issha Kayo, Chien-Hsiu Lee, Anupreeta More, Masamune Oguri
We conduct a search for galaxy-scale strong gravitational lens systems in Data Release 4 of the Hyper Suprime-Cam Subaru Strategic Program (HSC SSP), consisting of data taken up to the S21A semester. We select 103191 luminous red galaxies from the Ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::124bbe2ce84e3ab81da260bf38eb5481
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]
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
J1721$+$8842: a gravitationally lensed binary quasar with a proximate damped Lyman-$\alpha$ absorber
Autor:
M. Millon, Matthew W. Auger, Adriano Agnello, E. Paic, Frederic Courbin, Dominique Sluse, C. Lemon, James H. H. Chan
Publikováno v:
Lemon, C, Millon, M, Sluse, D, Courbin, F, Auger, M, Chan, J H H, Paic, E & Agnello, A 2022, ' J1721+8842 : A gravitationally lensed binary quasar with a proximate damped Lyman-α absorber ', Astronomy and Astrophysics, vol. 657, A113 . https://doi.org/10.1051/0004-6361/202142138
High-redshift binary quasars provide key insights into mergers and quasar activity, and are useful tools for probing the spatial kinematics and chemistry of galaxies along the line-of-sight. However, only three sub-10-kpc binaries have been confirmed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c07126b10c5a8486fdd00962b72653ee
http://arxiv.org/abs/2109.01144
http://arxiv.org/abs/2109.01144
Autor:
Stefan Taubenberger, O. Tihhonova, Inh Jee, Stefan Hilbert, Matthew W. Auger, Frederic Courbin, Sherry H. Suyu, Léon V. E. Koopmans, Eiichiro Komatsu, Cristian E. Rusu, Tommaso Treu, Vivien Bonvin, Christopher D. Fassnacht, Xuheng Ding, Dominique Sluse, M. Millon, Kenneth C. Wong, Roger Blandford, Adriano Agnello, Simon Birrer, Philip J. Marshall, Anowar J. Shajib, Georges Meylan, James H. H. Chan, Geoff C. F. Chen, Alessandro Sonnenfeld
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 498(1), 1420-1439. Oxford University Press
Wong, K C, Suyu, S H, Chen, G C-F, Rusu, C E, Millon, M, Sluse, D, Bonvin, V, Fassnacht, C D, Taubenberger, S, Auger, M W, Birrer, S, Chan, J H H, Courbin, F, Hilbert, S, Tihhonova, O, Treu, T, Agnello, A, Ding, X, Jee, I, Komatsu, E, Shajib, A J, Sonnenfeld, A, Blandford, R D, Koopmans, L V E, Marshall, P J & Meylan, G 2020, ' H0LiCOW-XIII. A 2.4 per cent measurement of H 0 from lensed quasars : 5.3 sigma tension between early-and late-Universe probes ', Monthly Notices of the Royal Astronomical Society, vol. 498, no. 1, pp. 1420-1439 . https://doi.org/10.1093/mnras/stz3094
Monthly Notices of the Royal Astronomical Society, 498(1), 1420-1439. Oxford University Press
Wong, K C, Suyu, S H, Chen, G C-F, Rusu, C E, Millon, M, Sluse, D, Bonvin, V, Fassnacht, C D, Taubenberger, S, Auger, M W, Birrer, S, Chan, J H H, Courbin, F, Hilbert, S, Tihhonova, O, Treu, T, Agnello, A, Ding, X, Jee, I, Komatsu, E, Shajib, A J, Sonnenfeld, A, Blandford, R D, Koopmans, L V E, Marshall, P J & Meylan, G 2020, ' H0LiCOW-XIII. A 2.4 per cent measurement of H 0 from lensed quasars : 5.3 sigma tension between early-and late-Universe probes ', Monthly Notices of the Royal Astronomical Society, vol. 498, no. 1, pp. 1420-1439 . https://doi.org/10.1093/mnras/stz3094
We present a measurement of the Hubble constant (H0) and other cosmological parameters from a joint analysis of six gravitationally lensed quasars with measured time delays. All lenses except the first are analysed blindly with respect to the cosmolo
Autor:
Cristian Rusu, Issha Kayo, Anupreeta More, Alessandro Sonnenfeld, Naohisa Inada, John D. Silverman, Paul L. Schechter, Anton T. Jaelani, Masamune Oguri, Daichi Kondo, M. Schramm, Kenneth C. Wong, James H. H. Chan, Kaiki Taro Inoue, Timo Anguita, Khee Gan Lee
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 502(1), 1487-1493
We present spectroscopic confirmation of three new two-image gravitationally lensed quasars, compiled from existing strong lens and X-ray catalogs. Images of HSC J091843.27$-$022007.5 show a red galaxy with two blue point sources at either side, sepa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c41e6e200bd80cc352a60622549a82a
https://hdl.handle.net/1887/3273952
https://hdl.handle.net/1887/3273952
Autor:
Frederic Courbin, M. Millon, Dominique Sluse, James H. H. Chan, Vivien Bonvin, G. Vernardos, E. Paic
Publikováno v:
Astronomy & Astrophysics. 659:A21
Gravitational microlensing is a powerful tool for probing the inner structure of strongly lensed quasars and for constraining parameters of the stellar mass function of lens galaxies. This is achieved by analysing microlensing light curves between th
Autor:
Anton T. Jaelani, Tomoki Morokuma, Cristian E. Rusu, Naoki Yasuda, Tohru Nagao, Sherry H. Suyu, James H. H. Chan, D. C. Y. Chao
We present a lensed quasar search based on the variability of lens systems in the HSC transient survey. Starting from 101,353 variable objects with i-band photometry in the HSC transient survey, we used a variability-based lens search method measurin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08d46caaff9ff5865eba4a1fc5215d18
http://arxiv.org/abs/2009.07854
http://arxiv.org/abs/2009.07854
Autor:
Markus Kromer, S. Taubenberger, Sherry H. Suyu, U. M. Noebauer, Dominique Sluse, S. A. Sim, S. Huber, James H. H. Chan
Publikováno v:
Huber, S, Suyu, S H, Noebauer, U M, Chan, J H H, Kromer, M, Sim, S A, Sluse, D & Taubenberger, S 2021, ' HOLISMOKES. III. Achromatic phase of strongly lensed Type Ia supernovae ', Astronomy and Astrophysics, vol. 646, A110 . https://doi.org/10.1051/0004-6361/202039218
To use strongly lensed Type Ia supernovae (LSNe Ia) for cosmology, a time-delay measurement between the multiple supernova (SN) images is necessary. The sharp rise and decline of SN Ia light curves make them promising for measuring time delays, but m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e35c87aff542d6580dea8dbe1d969f93
http://arxiv.org/abs/2008.10393
http://arxiv.org/abs/2008.10393