timedelay
Time Delay Estimation for Stochastic Time Series of Gravitationally Lensed Quasars
Description
We provide a toolbox to estimate the time delay between the brightness time series of gravitationally lensed quasar images via Bayesian and profile likelihood approaches. The model is based on a state-space representation for irregularly observed time series data generated from a latent continuous-time Ornstein-Uhlenbeck process. Our Bayesian method adopts scientifically motivated hyper-prior distributions and a Metropolis-Hastings within Gibbs sampler, producing posterior samples of the model parameters that include the time delay. A profile likelihood of the time delay is a simple approximation to the marginal posterior distribution of the time delay. Both Bayesian and profile likelihood approaches complement each other, producing almost identical results; the Bayesian way is more principled but the profile likelihood is easier to implement. A new functionality is added in version 1.0.9 for estimating the time delay between doubly-lensed light curves observed in two bands. See also Tak et al. (2017) <doi:10.1214/17-AOAS1027>, Tak et al. (2018) <doi:10.1080/10618600.2017.1415911>, Hu and Tak (2020) <arXiv:2005.08049>.
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| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| r-devel-linux-x86_64-fedora-clang | OK |
| r-devel-linux-x86_64-fedora-gcc | OK |
| r-devel-macos-arm64 | OK |
| r-devel-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| r-patched-linux-x86_64 | OK |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check details (2 non-OK)
CRAN incoming feasibility
Maintainer: ‘Hyungsuk Tak <hyungsuk.tak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Hyungsuk",
family = "Tak",
role = c("aut", "cre"),
email = "hyungsuk.tak@gmail.com"),
person(given = "Kaisey",
family = "Mandel",
role = "aut"),
person(given = c("David", "A."),
family = "van Dyk",
role = "aut"),
person(given = c("Vinay", "L."),
family = "Kashyap",
role = "aut"),
person(given = "Xiao-Li",
family = "Meng",
role = "aut"),
person(given = "Aneta",
family = "Siemiginowska",
role = "aut"),
person(given = "Zhirui",
family = "Hu",
role = "aut"))
as necessary.
The Description field contains
<arXiv:2005.08049>.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
CRAN incoming feasibility
Maintainer: ‘Hyungsuk Tak <hyungsuk.tak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Hyungsuk",
family = "Tak",
role = c("aut", "cre"),
email = "hyungsuk.tak@gmail.com"),
person(given = "Kaisey",
family = "Mandel",
role = "aut"),
person(given = c("David", "A."),
family = "van Dyk",
role = "aut"),
person(given = c("Vinay", "L."),
family = "Kashyap",
role = "aut"),
person(given = "Xiao-Li",
family = "Meng",
role = "aut"),
person(given = "Aneta",
family = "Siemiginowska",
role = "aut"),
person(given = "Zhirui",
family = "Hu",
role = "aut"))
as necessary.
The Description field contains
<arXiv:2005.08049>.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
Check History
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘Hyungsuk Tak <hyungsuk.tak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Hyungsuk",
family = "Tak",
role = c("aut", "cre"),
...[truncated]...
person(given = "Zhirui",
family = "Hu",
role = "aut"))
as necessary.
The Description field contains
<arXiv:2005.08049>.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.
CRAN incoming feasibility
Maintainer: ‘Hyungsuk Tak <hyungsuk.tak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Hyungsuk",
family = "Tak",
role = c("aut", "cre"),
...[truncated]...
person(given = "Zhirui",
family = "Hu",
role = "aut"))
as necessary.
The Description field contains
<arXiv:2005.08049>.
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.