Survey of Gravitationally Lensed Objects in HSC Imaging (SuGOHI)
| العنوان: | Survey of Gravitationally Lensed Objects in HSC Imaging (SuGOHI) |
|---|---|
| المؤلفون: | 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 |
| المصدر: | Monthly Notices of the Royal Astronomical Society, 502(1), 1487-1493 |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | ii, Gravitational lensing: strong, media_common.quotation_subject, Astrophysics - astrophysics of galaxies, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Spectral line, Methods: observational, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Spectroscopy, dark energy, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, media_common, Physics, search, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Quasar, space warps, cosmos, Methods observational, Galaxy, Redshift, 1st data release, x-ray, Space and Planetary Science, Sky, Astrophysics of Galaxies (astro-ph.GA), digital sky survey, constraints, camera |
| الوصف: | 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, separated by 2.26 arcsec. This system has a source and a lens redshifts $z_s=0.804$ and $z_{\ell}=0.459$, respectively, as obtained by our follow-up spectroscopic data. CXCO J100201.50$+$020330.0 shows two point sources separated by 0.85 arcsec on either side of an early-type galaxy. The follow-up spectroscopic data confirm the fainter quasar has the same redshift with the brighter quasar from the SDSS fiber spectrum at $z_s=2.016$. The deflecting foreground galaxy is a typical early-type galaxy at a redshift of $z_{\ell}=0.439$. SDSS J135944.21$+$012809.8 has two point sources with quasar spectra at the same redshift $z_s=1.096$, separated by 1.05 arcsec, and fits to the HSC images confirm the presence of a galaxy between these. These discoveries demonstrate the power of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP)'s deep imaging and wide sky coverage. Combined with existing X-ray source catalogues and follow-up spectroscopy, the HSC-SSP provides us unique opportunities to find multiple-image quasars lensed by a foreground galaxy. Comment: Accepted for publication in MNRAS, 7 pages, 3 figures (add credit to Claude Cornen) |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c41e6e200bd80cc352a60622549a82a https://hdl.handle.net/1887/3273952 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....2c41e6e200bd80cc352a60622549a82a |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |