论文标题
Minijpas调查:56种颜色的宇宙预览
The miniJPAS survey: a preview of the Universe in 56 colours
论文作者
论文摘要
加速宇宙天体物理调查(J-PAS)的Javalambre物理很快将开始扫描数千张北部杂质的天空,并在Javalambreprophrepysical Isserverator的JST上使用专用$ 2.55 $ M望远镜的专用$ 2.55 $ M望远镜的$ 56 $光学过滤器。 Before the arrival of the final instrument (a 1.2 Gpixels, 4.2deg$^2$ field-of-view camera), the JST was equipped with an interim camera (JPAS-Pathfinder), composed of one CCD with a 0.3deg$^2$ field-of-view and resolution of 0.23 arcsec pixel$^{-1}$.为了证明J-PAS的科学潜力,使用JPAS-PATHFINDER摄像机,我们在宙斯盾(Aegis)领域(沿着扩展的球状带)进行了调查,称为Minijpas。我们观察到总共$ \ sim 1 $ d $^2 $,其中包括$ 56 $ J-PAS过滤器,其中包括$ 54 $狭窄的乐队(NB,$ \ rm {fwhm} \ sim 145 $ Angstrom)和两个更宽的过滤器,并延伸到UV和近交易所,并由$ U,$ u,g,g,r,r,我$ sss recretters(我$ uv)。在本文中,我们介绍了Minijpas数据集,目录和数据访问的详细信息,并说明了我们的多波段数据的科学潜力。数据超过了最初针对J-PA的目标深度,达到$ \ rm {mag} _ {\ rm {ab}} $在$ \ sim 22 $和$ \ sim 22 $和$ 23.5 $之间的$ \ sim {\ rm {ab {ab}} $,用于NB过滤器,最多可用于BB过滤器($ 3 $ 〜Arcsecsecsecsecsecsecsecsecsecsecsecsece)。 Minijpas主要目录包含$ R $检测带中提取的64,000美元以上的资源,并在所有其他频段中都具有强制光度法。我们估计该目录的目录最多可为点状来源完成$ r = 23.6 $,而扩展来源的目录最多可达$ r = 22.7 $。对于最高$ r = 22.5 $的所有来源的光度红移达到了次级精度,对于大约一半的样本,$ \ sim 0.3 $%的精度为0.3 $%。 (简略)
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will soon start to scan thousands of square degrees of the northern extragalactic sky with a unique set of $56$ optical filters from a dedicated $2.55$m telescope, JST, at the Javalambre Astrophysical Observatory. Before the arrival of the final instrument (a 1.2 Gpixels, 4.2deg$^2$ field-of-view camera), the JST was equipped with an interim camera (JPAS-Pathfinder), composed of one CCD with a 0.3deg$^2$ field-of-view and resolution of 0.23 arcsec pixel$^{-1}$. To demonstrate the scientific potential of J-PAS, with the JPAS-Pathfinder camera we carried out a survey on the AEGIS field (along the Extended Groth Strip), dubbed miniJPAS. We observed a total of $\sim 1$ deg$^2$, with the $56$ J-PAS filters, which include $54$ narrow band (NB, $\rm{FWHM} \sim 145$Angstrom) and two broader filters extending to the UV and the near-infrared, complemented by the $u,g,r,i$ SDSS broad band (BB) filters. In this paper we present the miniJPAS data set, the details of the catalogues and data access, and illustrate the scientific potential of our multi-band data. The data surpass the target depths originally planned for J-PAS, reaching $\rm{mag}_{\rm {AB}}$ between $\sim 22$ and $23.5$ for the NB filters and up to $24$ for the BB filters ($5σ$ in a $3$~arcsec aperture). The miniJPAS primary catalogue contains more than $64,000$ sources extracted in the $r$ detection band with forced photometry in all other bands. We estimate the catalogue to be complete up to $r=23.6$ for point-like sources and up to $r=22.7$ for extended sources. Photometric redshifts reach subpercent precision for all sources up to $r=22.5$, and a precision of $\sim 0.3$% for about half of the sample. (Abridged)