In total 178.6 hours IRAM 30m observations + 25.5 nights Magellan observations + 84 nights MDM 2.4m + 63 nights MDM 1.3m + 6 hours LMT observations + 7.36 hours VLA observations. All of them were awarded after I came to University of Michigan.

[18] Dec. 2022, PI, Probing the Physical Properties of CGM/IGM at z~3, Magellan/Clay/IFUM 2023A program, 0.5 night approved on May 22, 2023.

[17] Multi-years,ongoing, PI, Imaging observations for the HIERACHY project, MDM Observatory 1.3m Telescope observation program (plus some 2.4m observations taken via the eDIG-CHANGES program), 23 nights approved until now, 2023A: 16 nights; 2021B, 4 nights; 2020A, 3 nights.

[16] Multi-years,ongoing, PI, Probing the He II reionization with the C IV absorption lines from the spectra of high-z quasars (spectroscopy observations of the HIERACHY project), 6.5m Magellan Clay/MIKE and Baade/MagE program, 11.5 nights Clay/MIKE time approved until now, 3.5 nights canceled due to the COVID-19 pandemic, 8 nights taken): 2022A, 2 nights; 2021B, 3 nights; 2021A, 2 nights (canceled); 2020B, 1 night (0.5 night canceled); 2020A, 1 night (canceled); 2019B, 1.5 nights; 2019A, 1 night. 3 nights Baade/MagE time approved until now: 2023A, 2 nights; 2022B, 1 night.

[15] Multi-years,ongoing, PI, Extraplanar diffuse ionized gas around a sample of nearby edge-on spiral galaxies (the eDIG-CHANGES project), MDM Observatory 2.4m Telescope program, 65 nights approved until now (some used for other programs), 8 nights canceled due to the COVID-19 pandemic: 2023A, 13 nights; 2022A, 9 nights; 2021B, 7 nights; 2021A, 5 nights (4 nights canceled); 2020B, 5 nights (4 nights canceled); 2020A, 7 nights; 2019B, 7 nights; 2019A, 8 nights; 2018B, 4 nights.

[14] Nov. 2021, PI, The nuclear bubble of the Virgo Cluster Galaxy NGC 4438, VLA 2022A proposal (7.36 hours Priority C); Proposal ID: VLA/22A-180.

[13] Jun 2021, PI, Molecular gas in starburst galaxies around enormous Lyα nebulae, Large Milimeter Telescope (LMT) 2021A Proposal (6 hours Priority A time of the LMT/RSR); Proposal Id: 2021-S1-US-17.

[12] Multi-semesters, completed, PI, A Complete Survey of Background Quasars at Low Galactic Latitude, MDM Observatory Proposal at the 1.3m Telescope (in total 35 nights; 2020A, 7 nights; 2020B, 5 nights; 2021A, 7 nights, 2021B, 8 nights, 2022A, 8 nights).

[11] Dec. 2018, PI, Confirming a protocluster at z = 3.2, Magellan/Baade 2019A Proposal (1 night approved, but not taken due to bad weather).

[10] Multi-semesters, completed, PI, Spatially resolved observations of molecular gas along the disk of the CHANG-ES galaxies (the CO-CHANGES project), IRAM 2018B proposal for the 30m telescope (in total 97.1 hours; 51.1 hours in 2018B, Proposal ID: 063-18; 46.0 hours in 2019A, Proposal ID: 189-18).

[9] Dec. 2017, PI, Extended Diffuse Ionized Gas from the Halo of Massive Elliptical Galaxies - A Key Test of the Accretion Scenario, MDM Observatory 2018A Proposal at the 2.4m/1.3m Telescope (5 nights of the 1.3m time, 3 nights of the 2.4m time).

[8] Jun. 2017, PI, Warm Molecular Hydrogen in Nearby Galactic Outflows, MDM Observatory 2017B Proposal at the 2.4m Hiltner Telescope (6 nights, instrument problem, taken some optical data instead).

[7] Jun. 2017, PI, A case study of supernova remnant-molecular cloud interaction with associated gamma-ray emissions, IRAM 2017B proposal for the 30m telescope (12.5 hours; taken); Proposal ID: 028-17.

[6] Multi-semesters, completed, PI, Survey of Luminous z>7 Quasars: Early BH Growth and Reionization History, Magellan Baade Proposal (in total 8 nights, while 5 nights with Li as PI; 4 half nights in 2017B; 3 nights in 2018A; another 3 nights approved through University of Arizona in 2018A).

[5] Multi-semesters, completed, PI, Molecular gas in the most massive isolated spiral galaxies, IRAM proposal for the 30m telescope (in total 23.9 hours; 9.3 hours in 2016B, Proposal ID: 062-16; 14.6 hours in 2017A, Proposal ID: 162-16);.

[4] Multi-semesters, completed, PI, Shocked molecular clumps around Cassiopeia A — A key probe of CR acceleration and asymmetric SN explosion, IRAM proposal for the 30m telescope (in total 45.1 hours; 8.6 hours in 2016B, Proposal ID: 053-16; 36.5 hours in 2017A, Proposal ID:136-16).

[3] Multi-semesters, completed, PI, Black Hole Growth and Accretion History of Luminous quasars at z ∼ 5, Magellan Baade Proposal (in total 3.5 nights; 2 nights in 2016A; 1.5 nights in 2016B).

[2] Dec. 2015, PI, Diffuse Ionized Gas Around the Most Massive Spiral Galaxies in the Local Universe, MDM observatory 2016A Proposal (2 nights at the 2.4m Hiltner telescope).

[1] Multi-semesters, completed, PI, UV-bright Background AGNs around Nearby Spiral Galaxies, MDM 2.4m (in total 8 nights; 4 nights in 2015A, 4 nights in 2015B); Magellan Baade (1 night in 2015B).