MUSE超深场（MUDF）。III。哈勃空间望远镜WFC3棱镜光谱学和成像
The MUSE Ultra Deep Field (MUDF). III. Hubble Space Telescope WFC3 Grism Spectroscopy and Imaging
摘要：
我们提出了极深的哈勃太空望远镜（HST）宽视场相机3（WFC 3）的观测MUSE超深场（MUDF）。这个独特的天空区域包含两个距离$z \approx$ 3.22的类星体，它们之间的距离仅为$\sim$ 500 kpc，提供了一个气体和星系在$\sim$ 100亿年宇宙时间内发射和吸收的立体视图。我们已经获得了90个轨道的HST WFC 3 G141近红外棱镜光谱在一个单一的指向，以及142小时的光谱与甚大望远镜（VLT）多单元光谱探测器（MUSE）。WFC 3（F140 W、F125 W和F336 W）和存档WFPC 2（F702 W和F450 W）成像提供了五个滤光片测光，我们使用这些测光来检测$z \approx$ 0 - 6之间的3，375个源，包括1，536个具有光谱和测光覆盖范围的深中心指向的对象。F140 W和F336 W镶嵌图分别达到了$m_\mathrm{AB}\approx$ 28和29的特殊深度，为1,580个光源提供了近红外和静止帧紫外信息，我们在棱镜光谱中对像$m_\mathrm{AB}\approx$ 27这样微弱的天体达到了5个$σ$连续探测。MUSE和WFC 3广泛的波长覆盖范围使我们能够测量419个源的光谱红移，直到$z \approx$ 1 - 2的log（M/M $_{\odot}$）$\approx$ 7的星系恒星质量。在本出版物中，我们提供了校准的HST数据和源目录作为高级别科学产品供社区使用，其中包括测光，形态学和红移测量，这些测量可以进行各种研究，旨在推进我们在不同环境中的星系形成和演化模型。
英文摘要：
We present extremely deep Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) observations of the MUSE Ultra Deep Field (MUDF). This unique region of the sky contains two quasars at $z \approx$ 3.22 that are separated by only $\sim$500 kpc, providing a stereoscopic view of gas and galaxies in emission and absorption across $\sim$10 billion years of cosmic time. We have obtained 90 orbits of HST WFC3 G141 near-infrared grism spectroscopy of this field in a single pointing, as well as 142 hours of optical spectroscopy with the Very Large Telescope (VLT) Multi Unit Spectroscopic Explorer (MUSE). The WFC3 (F140W, F125W, and F336W) and archival WFPC2 (F702W and F450W) imaging provides five-filter photometry that we use to detect 3,375 sources between $z \approx$ 0 - 6, including 1,536 objects in a deep central pointing with both spectroscopic and photometric coverage. The F140W and F336W mosaics reach exceptional depths of $m_\mathrm{AB}\approx$ 28 and 29, respectively, providing near-infrared and rest-frame ultraviolet information for 1,580 sources, and we reach 5$σ$ continuum detections for objects as faint as $m_\mathrm{AB}\approx$ 27 in the grism spectra. The extensive wavelength coverage of MUSE and WFC3 allows us to measure spectroscopic redshifts for 419 sources, down to galaxy stellar masses of log(M/M$_{\odot}$) $\approx$ 7 at $z \approx$ 1 - 2. In this publication, we provide the calibrated HST data and source catalogs as High Level Science Products for use by the community, which includes photometry, morphology, and redshift measurements that enable a variety of studies aimed at advancing our models of galaxy formation and evolution in different environments.
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