0 Assigned ID: 1746 ----- Attempting Submission 1 (Thu Apr 08 23:09:19 GMT 2021) ----- HST Phase I Proposal 1746 successfully submitted. Receipt: # 1746-1 ----- Attempting Submission 2 (Fri Apr 09 15:14:38 GMT 2021) ----- Stellar feedback (SF) and environmental interaction, such as ram pressure (RP), are two of the most important processes that shape galaxy evolution. Despite growing computational power to resolve the SF and RP processes, there are very few observational constraints that can be used to test these simulations in the vicinity of galaxies. How is gas in a galaxy affected by RP and SF, in particular, what are the signatures at the pivotal disk-halo interface that connects a galaxy's interstellar medium (ISM) and its circumgalactic medium (CGM)? To address this question, we will conduct a detailed analysis of the ionization and kinematic structure of gas at the disk-halo interface of the Large Magellanic Cloud (LMC) with 132 ULLYSES sightlines. We will (1) calculate the strengths of RP and SF across the LMC, (2) measure column density, velocity, and velocity dispersion for a set of warm ions (logT~4-5.5 K; SiIV, CIV, OVI) that trace extraplanar gas, and (3) quantify the correlation between the extraplanar gas' properties and the strengths of RP and SF. This program will give us the first glimpse into the distinguishing effects of RP and SF on the ionization and kinematic structure of extraplanar gas in the LMC. We will also provide ionization and kinematic maps of warm gas across the LMC to the community for comparison with observations at other wavelengths. The PI, Dr. Yong Zheng, is an expert in the circumgalactic medium and disk-halo interface of the Milky Way and nearby galaxies. Dr. Zheng is an expert in COS data reduction and HI 21cm data reduction, and has worked closely with simulation data to conduct synthetic observations. Dr. Chad Bustard is an expert in computational modeling of galaxy evolution. Using idealized hydrodynamic experiments, Chad has extensively simulated the joint effects of stellar feedback and ram pressure stripping on the LMC. Dr. Kirill Tchernyshyov is an expert in the analysis of UV spectra and has worked extensively with spectra taken with the FUSE spectrograph. Dr. Tchernyshyov is also familiar with various photoionization modeling. Dr. Joshua Peek is an expert in the study of the Milky Way circumgalactic medium and the construction and testing of dynamical models of disk-halo interfaces and circumgalactic media. Dr. Jessica Werk is an expert in COS observations, COS data reduction, COS spectral analysis, and inferring column densities and physical properties from COS and other spectroscopic absorption line data. Dr. Werk has also worked closely with COS and other spectroscopic absorption lines of blue horizontal branch stars. Dr. Mary Putman is a world expert in high-velocity clouds, circumgalactic material, ram pressure, and galaxy formation. Dr. Mary Putman has also worked extensively on the Magellanic systems using HI 21cm observation. Dr. Julia Roman-Duval is an expert in STIS and COS data reduction and interstellar medium research, particularly dust properties and interstellar depletions. She is the PI of the METAL (GO-14675) and METAL-Z (15880) large HST programs to obtain depletions, extinction curves, and extinction maps in the LMC and nearby low metallicity galaxies (METAL-Z). Dr. Yakov Faerman is an expert in constructing detailed analytic models of the circumgalactic medium, comparing them to data from observations and simulations, and using ionization models to interpret absorption measurements. Dr. Raymond Simons is an expert in ram pressure stripping, galaxy kinematics, and comparing synthetic data from galaxy formation simulations with real data. Dr. Enrico Di Teodoro is an expert in kinematical/dynamical modelling of a variety of data and has extensively studied local star-formation driven winds. Dr. Anna McLeod is an integral field spectroscopy expert, working predominantly on resolved stellar and nebular spectroscopy in the Milky Way, the Magellanic Clouds, and nearby galaxies. Mr. Robert Zhu is an undergraduate working on the project who is training under Dr. Yong Zheng, and is learning archival search commands and spectral analysis techniques. Galaxies Intergalactic Medium and the Circumgalactic Medium 0 Regular false false true false false SUPPORTED