Galaxy Evolution with SINS/KMOS3D/PHIBSS/NOEMA3D: Witnessing the Growth of Galaxies at z ~ 1–3 through Spatially and Spectrally Resolved Studies
Spatially and spectrally resolved information of the rest-frame optical line and continuum emission is proving very powerful in exploring the physical processes that drive the baryonic mass assembly and star formation of distant galaxies. We have carried out our major surveys of near-IR imaging spectroscopy with SINFONI (SINS/zC-SINF) and KMOS (KMOS3D), and will use ERIS at the Very Large Telescope. Together with Hubble Space Telescope imaging and multiline spectroscopic observations with LUCI at the Large Binocular Telescope, we are investigating in detail the resolved gas kinematics, stellar populations and structure, galactic outflows, excitation, and metallicities of young galaxies from two to eight billion years after the Big Bang. Our PHIBSS/PHIBSS2 and NOEMA3D surveys with the IRAM NOEMA millimeter interferometer provide the essential complementary view of the cold molecular gas content, distribution, and kinematics. These surveys are revealing the importance of internal galaxy dynamics in growing early disks and bulges, and the nature and energetics of feedback – pinning down for the first time details of physical processes driving and regulating early galaxy evolution in the emerging "equilibrium growth model."
SINS/zC-SINF took advantage of the unique opportunities afforded by SINFONI at ESO's Very Large Telescope on Cerro Paranal, Chile, a near-infrared integral field unit (IFU) spectrometer combined with an adaptive optics (AO) system that delivers sharp images simultaneously with high-resolution spectral information. KMOS3D, our multiyear survey with the KMOS instrument as part of Guaranteed Time Observations with MPE/OPINAS and USM, has taken the next major step toward a comprehensive and unbiased view of the resolved properties of galaxies at the heyday of massive galaxy formation. It capitalized on the worldwide unique combination of integral field spectroscopy and multiplexing of KMOS, featuring 24 integral field units patrolling a wide field of 7 arcminutes in diameter. KMOS has opened up an entirely new dimension in detailed spatially and spectrally resolved studies of distant galaxies. Our comprehensive and highly successful KMOS3D survey has collected very sensitive and detailed data of 740 individual targeted objects at 0.6 < z < 2.7 (and 45 serendipitous sources), spanning a wide range in galaxy parameter space and probing into regimes unexplored so far with near-IR IFU studies, such as massive galaxies in the process of quenching their star formation activity. The multiplexing capabilities of the LUCI near-IR multislit spectrograph and imager at the Large Binocular Telescope on Mount Graham, near Tucson, Arizona, make surveys of multiple emission lines of large samples up to 20 times more efficient than single-object long-slit instruments. Coupled with the ground-layer AO system ARGOS, which is currently being commissioned, our high-redshift galaxy research will strongly benefit from several factors: the increased sensitivity, the spatially resolved spectroscopy, and the higher spectral resolution that can be uniformly achieved over a wide field up to 4 arcminutes across with the unprecedented combination of multiplexed spectroscopy and AO-assisted angular resolution with LUCI + ARGOS.
The reduced SINFONI+AO data from the SINS/zC-SINF AO survey are available here.
The dedicated KMOS3D survey web pages and public release of the reduced data cubes are accessible here.
The dedicated PHIBSS 1 & 2 survey web pages and public release are accessible here.
We participate in:
- IMPRS: the International Max Planck Research School on Astrophysics
We were also part of:
- DFG Priority Program SPP1177: "Witnesses of Cosmic History"