Summary of trends in median intensities of C i, C ii, CO, and their ratios in AGN and NoAGN models, categorized by inner regions (<50 pc), outer regions (>50 pc), and general trends over time. Increases (|$\uparrow$|), decreases (|$\downarrow$|), and no change (|$\rightarrow$|) are indicated for the C i/CO, C ii/CO, and C i/C ii ratios. The table highlights that the C i/CO and C i/C ii ratios generally decrease over time, while the C ii/CO ratios show an increasing trend. Notably, the AGN model exhibits lower median values for C i/CO, C ii/CO, and C i/C ii before 8 Myr, with a reversal in the C i/CO ratio at 8 Myr, suggesting changing abundances influenced by AGN activity.
| Species/ratio . | AGN . | NoAGN . | Description . | ||||
|---|---|---|---|---|---|---|---|
| . | Inner . | Outer . | General . | Inner . | Outer . | General . | . |
| C i | |$\downarrow ^a$| | |$\uparrow ^b$| | |$\downarrow$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\rightarrow$| at t < 6 Myr |
| C ii | |$\downarrow$| | |$\uparrow ^a$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow ^a$| | |$\downarrow$| | a: |$\rightarrow$| at t < 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| CO | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow ^b$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| C i/CO | |$\downarrow ^a$| | |$\downarrow ^b$| | |$\downarrow ^a$| | |$\uparrow$| | |$\uparrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\uparrow$| at t = 7, 8 Myr |
| C ii/CO | |$\downarrow$| | |$\downarrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow ^a$| | a: |$\downarrow$| inner at t = 8 Myr |
| C i/C ii | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| inner and at t = 7, 8 Myr |
| Species/ratio . | AGN . | NoAGN . | Description . | ||||
|---|---|---|---|---|---|---|---|
| . | Inner . | Outer . | General . | Inner . | Outer . | General . | . |
| C i | |$\downarrow ^a$| | |$\uparrow ^b$| | |$\downarrow$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\rightarrow$| at t < 6 Myr |
| C ii | |$\downarrow$| | |$\uparrow ^a$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow ^a$| | |$\downarrow$| | a: |$\rightarrow$| at t < 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| CO | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow ^b$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| C i/CO | |$\downarrow ^a$| | |$\downarrow ^b$| | |$\downarrow ^a$| | |$\uparrow$| | |$\uparrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\uparrow$| at t = 7, 8 Myr |
| C ii/CO | |$\downarrow$| | |$\downarrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow ^a$| | a: |$\downarrow$| inner at t = 8 Myr |
| C i/C ii | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| inner and at t = 7, 8 Myr |
Summary of trends in median intensities of C i, C ii, CO, and their ratios in AGN and NoAGN models, categorized by inner regions (<50 pc), outer regions (>50 pc), and general trends over time. Increases (|$\uparrow$|), decreases (|$\downarrow$|), and no change (|$\rightarrow$|) are indicated for the C i/CO, C ii/CO, and C i/C ii ratios. The table highlights that the C i/CO and C i/C ii ratios generally decrease over time, while the C ii/CO ratios show an increasing trend. Notably, the AGN model exhibits lower median values for C i/CO, C ii/CO, and C i/C ii before 8 Myr, with a reversal in the C i/CO ratio at 8 Myr, suggesting changing abundances influenced by AGN activity.
| Species/ratio . | AGN . | NoAGN . | Description . | ||||
|---|---|---|---|---|---|---|---|
| . | Inner . | Outer . | General . | Inner . | Outer . | General . | . |
| C i | |$\downarrow ^a$| | |$\uparrow ^b$| | |$\downarrow$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\rightarrow$| at t < 6 Myr |
| C ii | |$\downarrow$| | |$\uparrow ^a$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow ^a$| | |$\downarrow$| | a: |$\rightarrow$| at t < 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| CO | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow ^b$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| C i/CO | |$\downarrow ^a$| | |$\downarrow ^b$| | |$\downarrow ^a$| | |$\uparrow$| | |$\uparrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\uparrow$| at t = 7, 8 Myr |
| C ii/CO | |$\downarrow$| | |$\downarrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow ^a$| | a: |$\downarrow$| inner at t = 8 Myr |
| C i/C ii | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| inner and at t = 7, 8 Myr |
| Species/ratio . | AGN . | NoAGN . | Description . | ||||
|---|---|---|---|---|---|---|---|
| . | Inner . | Outer . | General . | Inner . | Outer . | General . | . |
| C i | |$\downarrow ^a$| | |$\uparrow ^b$| | |$\downarrow$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\rightarrow$| at t < 6 Myr |
| C ii | |$\downarrow$| | |$\uparrow ^a$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow ^a$| | |$\downarrow$| | a: |$\rightarrow$| at t < 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| CO | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow ^b$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| at inner t = 7, 8 Myr |
| C i/CO | |$\downarrow ^a$| | |$\downarrow ^b$| | |$\downarrow ^a$| | |$\uparrow$| | |$\uparrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 8 Myr; b: |$\uparrow$| at t = 7, 8 Myr |
| C ii/CO | |$\downarrow$| | |$\downarrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow$| | |$\uparrow ^a$| | a: |$\downarrow$| inner at t = 8 Myr |
| C i/C ii | |$\downarrow ^a$| | |$\uparrow$| | |$\downarrow ^b$| | |$\uparrow$| | |$\downarrow$| | |$\downarrow$| | a: |$\uparrow$| at t = 7, 8 Myr; b: |$\uparrow$| inner and at t = 7, 8 Myr |
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