MAGIC: MUSE gAlaxy Groups In COSMOS – A survey to probe the impact of environment on galaxy evolution over the last 8 Gyr

The release of the MUSE gAlaxy Groups in COSMOS (MAGIC) survey (Programs 094.A-0247, 095.A-0118, 096.A-0596, 097.A-0254, 098.A-0017,
099.A-0246, 0100.A-0607, 0101.A-0282, 0102.A-0327, 0103.A-0563, PI T. Contini) is composed of 18 datacubes, observed with exposure times from 1 to 10 hours, with a median of 4.3h, using the wide-field mode, with a spectral sampling of 1.25 Angstroms and a spatial sampling of 0.2". The datacubes cover the wavelength range between 4700 and 9350 Angstroms and have an image quality better than 0.7" FWHM owing to good observing conditions and/or to the use of adaptive optics. The median 3σ point-source flux limit of an unresolved emission line reaches 3.6x10E-19 erg cm**(-2) s**(-1) and the median point source magnitude limit is about 28.5 at 5 in white-light images. The MAGIC survey datacubes target 15 known massive groups and clusters at intermediate redshift (0.3 < z < 0.8), 14 of which being located in the COSMOS field and one in the VVDS field. This dataset is incredibly rich and contains more than one thousand of objects, from stars to high redshift galaxies, as well as extended nebulae.
More information about the observing program, data processing, sample, associated group and galaxy catalogs, and other features discovered in this dataset can be found in the accompanying documentation and in the associated publication (Epinat et al. 2024, Astronomy & Astrophysics, Volume 683, id.A205).

COSMOS天区MUSE星系群（MAGIC）巡天（项目编号：094.A-0247、095.A-0118、096.A-0596、097.A-0254、098.A-0017、099.A-0246、0100.A-0607、0101.A-0282、0102.A-0327、0103.A-0563，首席研究员（Principal Investigator，PI）T. Contini）发布的数据集包含18个数据立方体。该数据集采用宽视场模式观测，曝光时长介于1至10小时，中位曝光时间为4.3小时；光谱采样率为1.25埃（Angstrom），空间采样率为0.2角秒。数据立方体的覆盖波长范围为4700至9350埃，得益于优良的观测条件与自适应光学（Adaptive Optics）的应用，其图像质量的半高全宽（Full Width at Half Maximum，FWHM）优于0.7角秒。未分辨发射线的中位3σ点源流量极限可达3.6×10^-19 erg·cm^-2·s^-1；在5σ置信度下，白光图像中的中位点源星等极限约为28.5。本数据集的观测目标为15个已知的中等红移（0.3 < z < 0.8）大质量星系团与星系群，其中14个位于COSMOS天区，剩余1个位于VVDS天区。该数据集内容极为丰富，涵盖了从恒星到高红移星系在内的千余个天体，同时包含延展星云。有关该观测项目、数据处理、样本、配套星系团与星系星表，以及本数据集所发现的其他特征的更多信息，可参阅随附文档与相关发表论文（Epinat等人，2024年，《天文学与天体物理学》，第683卷，A205号文章）。