论文标题
HSC成像（Sugohi）中重力镜头对象的调查-VII。发现和确认三个强烈镜头的类星体
Survey of Gravitationally lensed Objects in HSC Imaging (SuGOHI) -- VII. Discovery and Confirmation of Three Strongly Lensed Quasars
论文作者
论文摘要
我们介绍了三个新的两图重力镜头类星体的光谱证实，这些类星体由现有的强透镜和X射线目录汇编而成。 HSC J091843.27的图像$ - $ 022007.5显示了一个红色银河系，两侧有两个蓝点源，分别为2.26 ARCSEC。该系统具有源和镜头红移$ z_s = 0.804 $和$ z {\ ell} = 0.459 $，这是我们的后续光谱数据所获得的。 CXCO J100201.50 $+$ 020330.0显示了两个早期类型星系的两侧分别为0.85 Arcsec的两个点源。后续光谱数据证实，从$ z_s = 2.016 $的SDSS光纤频谱中的明亮类星体具有相同的红移。偏转的前景星系是典型的早期类型星系，其红移为$ z _ {\ ell} = 0.439 $。 SDSS J135944.21 $+$ 012809.8在相同的红移$ z_s = 1.096 $中有两个点源，由1.05 ARCSEC隔开，并且适合HSC图像，并确认它们之间存在星系。这些发现证明了超级Suprime-Cam Subaru战略计划（HSC-SSP）的深度成像和宽阔的天空覆盖的力量。与现有的X射线源目录和后续光谱相结合，HSC-SSP为我们提供了独特的机会，可以找到由前景星系镜头镜头的多图像类星体。
We present spectroscopic confirmation of three new two-image gravitationally lensed quasars, compiled from existing strong lens and X-ray catalogs. Images of HSC J091843.27$-$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.
