Subaru Telescope adaptive optics observations of gravitationally lensed quasars in the Sloan Digital Sky Survey
| العنوان: | Subaru Telescope adaptive optics observations of gravitationally lensed quasars in the Sloan Digital Sky Survey |
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| المؤلفون: | Hideki Takami, Masamune Oguri, Cristian E. Rusu, Naohisa Inada, Yutaka Hayano, Meguru Ito, Shin Oya, Yoshihiko Saito, Masayuki Hattori, Yosuke Minowa, Tae-Soo Pyo, Hiroshi Terada, Makoto Watanabe, Issha Kayo, Masanori Iye |
| المصدر: | Monthly Notices of the Royal Astronomical Society. 458:2-55 |
| بيانات النشر: | Oxford University Press (OUP), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Physics, Supermassive black hole, 010308 nuclear & particles physics, Dark matter, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy, Astronomy and Astrophysics, Quasar, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrometry, Astrophysics, Astrophysics - Astrophysics of Galaxies, 01 natural sciences, Galaxy, Photometry (optics), Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), 0103 physical sciences, Subaru Telescope, Adaptive optics, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics |
| الوصف: | We present the results of an imaging observation campaign conducted with the Subaru Telescope adaptive optics system (IRCS+AO188) on 28 gravitationally lensed quasars (23 doubles, 1 quad, and 1 possible triple, and 3 candidates) from the SDSS Quasar Lens Search. We develop a novel modelling technique that fits analytical and hybrid point spread functions (PSFs), while simultaneously measuring the relative astrometry, photometry, as well as the lens galaxy morphology. We account for systematics by simulating the observed systems using separately observed PSF stars. The measured relative astrometry is comparable with that typically achieved with the Hubble Space Telescope, even after marginalizing over the PSF uncertainty. We model for the first time the quasar host galaxies in 5 systems, without a-priory knowledge of the PSF, and show that their luminosities follow the known correlation with the mass of the supermassive black hole. For each system, we obtain mass models far more accurate than those previously published from low-resolution data, and we show that in our sample of lensing galaxies the observed light profile is more elliptical than the mass, for ellipticity > 0.25. We also identify eight doubles for which the sources of external and internal shear are more reliably separated, and should therefore be prioritized in monitoring campaigns aimed at measuring time-delays in order to infer the Hubble constant. 59 pages including 28 in the appendix. Accepted by MNRAS. The figures in this version are shrunk. Minor corrections made after the referee report |
| تدمد: | 1365-2966 0035-8711 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::353bf182d1d4798a36ddba7c3047cd63 https://doi.org/10.1093/mnras/stw092 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....353bf182d1d4798a36ddba7c3047cd63 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 00358711 |
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