JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78
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| Format: | Preprint |
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2024
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| author | Pierel, J. D. R. Frye, B. L. Pascale, M. Caminha, G. B. Chen, W. Dhawan, S. Gilman, D. Grayling, M. Huber, S. Kelly, P. Thorp, S. Arendse, N. Birrer, S. Bronikowski, M. Canameras, R. Coe, D. Cohen, S. H. Conselice, C. J. Driver, S. P. Dsilva, J. C. J. Engesser, M. Foo, N. Gall, C. Garuda, N. Grillo, C. Grogin, N. A. Henderson, J. Hjorth, J. Jansen, R. A. Johansson, J. Kamieneski, P. S. Koekemoer, A. M. Larison, C. Marshall, M. A. Moustakas, L. A. Nonino, M. Ortiz Iii, R. Petrushevska, T. Pirzkal, N. Robotham, A. Ryan, Jr., R. E. Schuldt, S. Strolger, L. G. Summers, J. Suyu, S. H. Treu, T. Willmer, C. N. A. Windhorst, R. A. Yan, H. Zitrin, A. Acebron, A. Chakrabarti, S. Coulter, D. A. Fox, O. D. Huang, X. Jha, S. W. Li, G. Mazzali, P. A. Meena, A. K. Perez-Fournon, I. Poidevin, F. Rest, A. Riess, A. G. |
| author_facet | Pierel, J. D. R. Frye, B. L. Pascale, M. Caminha, G. B. Chen, W. Dhawan, S. Gilman, D. Grayling, M. Huber, S. Kelly, P. Thorp, S. Arendse, N. Birrer, S. Bronikowski, M. Canameras, R. Coe, D. Cohen, S. H. Conselice, C. J. Driver, S. P. Dsilva, J. C. J. Engesser, M. Foo, N. Gall, C. Garuda, N. Grillo, C. Grogin, N. A. Henderson, J. Hjorth, J. Jansen, R. A. Johansson, J. Kamieneski, P. S. Koekemoer, A. M. Larison, C. Marshall, M. A. Moustakas, L. A. Nonino, M. Ortiz Iii, R. Petrushevska, T. Pirzkal, N. Robotham, A. Ryan, Jr., R. E. Schuldt, S. Strolger, L. G. Summers, J. Suyu, S. H. Treu, T. Willmer, C. N. A. Windhorst, R. A. Yan, H. Zitrin, A. Acebron, A. Chakrabarti, S. Coulter, D. A. Fox, O. D. Huang, X. Jha, S. W. Li, G. Mazzali, P. A. Meena, A. K. Perez-Fournon, I. Poidevin, F. Rest, A. Riess, A. G. |
| contents | Supernova (SN) H0pe is a gravitationally lensed, triply-imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Well-observed multiply-imaged SNe provide a rare opportunity to constrain the Hubble constant ($H_0$), by measuring the relative time delay between the images and modeling the foreground mass distribution. SN H0pe is located at $z=1.783$, and is the first SN Ia with sufficient light curve sampling and long enough time delays for an $H_0$ inference. Here we present photometric time-delay measurements and SN properties of SN H0pe. Using JWST/NIRCam photometry we measure time delays of $Δt_{ab}=-116.6^{+10.8}_{-9.3}$ and $Δt_{cb}=-48.6^{+3.6}_{-4.0}$ observer-frame days relative to the last image to arrive (image 2b; all uncertainties are $1σ$), which corresponds to a $\sim5.6\%$ uncertainty contribution for $H_0$ assuming $70 \rm{km s^{-1} Mpc^{-1}}$. We also constrain the absolute magnification of each image to $μ_{a}=4.3^{+1.6}_{-1.8}$, $μ_{b}=7.6^{+3.6}_{-2.6}$, $μ_{c}=6.4^{+1.6}_{-1.5}$ by comparing the observed peak near-IR magnitude of SN H0pe to the non-lensed population of SNe Ia. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_18954 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78 Pierel, J. D. R. Frye, B. L. Pascale, M. Caminha, G. B. Chen, W. Dhawan, S. Gilman, D. Grayling, M. Huber, S. Kelly, P. Thorp, S. Arendse, N. Birrer, S. Bronikowski, M. Canameras, R. Coe, D. Cohen, S. H. Conselice, C. J. Driver, S. P. Dsilva, J. C. J. Engesser, M. Foo, N. Gall, C. Garuda, N. Grillo, C. Grogin, N. A. Henderson, J. Hjorth, J. Jansen, R. A. Johansson, J. Kamieneski, P. S. Koekemoer, A. M. Larison, C. Marshall, M. A. Moustakas, L. A. Nonino, M. Ortiz Iii, R. Petrushevska, T. Pirzkal, N. Robotham, A. Ryan, Jr., R. E. Schuldt, S. Strolger, L. G. Summers, J. Suyu, S. H. Treu, T. Willmer, C. N. A. Windhorst, R. A. Yan, H. Zitrin, A. Acebron, A. Chakrabarti, S. Coulter, D. A. Fox, O. D. Huang, X. Jha, S. W. Li, G. Mazzali, P. A. Meena, A. K. Perez-Fournon, I. Poidevin, F. Rest, A. Riess, A. G. Cosmology and Nongalactic Astrophysics Supernova (SN) H0pe is a gravitationally lensed, triply-imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Well-observed multiply-imaged SNe provide a rare opportunity to constrain the Hubble constant ($H_0$), by measuring the relative time delay between the images and modeling the foreground mass distribution. SN H0pe is located at $z=1.783$, and is the first SN Ia with sufficient light curve sampling and long enough time delays for an $H_0$ inference. Here we present photometric time-delay measurements and SN properties of SN H0pe. Using JWST/NIRCam photometry we measure time delays of $Δt_{ab}=-116.6^{+10.8}_{-9.3}$ and $Δt_{cb}=-48.6^{+3.6}_{-4.0}$ observer-frame days relative to the last image to arrive (image 2b; all uncertainties are $1σ$), which corresponds to a $\sim5.6\%$ uncertainty contribution for $H_0$ assuming $70 \rm{km s^{-1} Mpc^{-1}}$. We also constrain the absolute magnification of each image to $μ_{a}=4.3^{+1.6}_{-1.8}$, $μ_{b}=7.6^{+3.6}_{-2.6}$, $μ_{c}=6.4^{+1.6}_{-1.5}$ by comparing the observed peak near-IR magnitude of SN H0pe to the non-lensed population of SNe Ia. |
| title | JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78 |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2403.18954 |