Free Access
Table 3.
Physical parameters of NGC 1365 compared with those of NGC 1377.
Object | Rotation | Or | Radius | Rotation or | Mass | Period | Remarks | |
---|---|---|---|---|---|---|---|---|
outflow | axis | or size | outflow vel. | dyn. (a) | Gas (b) | or age | ||
PA [°] | Incl. [°] | [kpc pc−1] | [km s−1] | [×109 M⊙] | [Myr] | |||
NGC 1365 | ||||||||
Disk (c) | 130 | 50 | 22 | ≈270 | 360 | 13 | ≈500 | H I mass |
Bar (c)(d) | 50 | 10 | 180 | 13 (d) | 340 | Stellar mass | ||
Disk | 50 | 10 | 310 | 220 | 9 | 200 | H2 mass | |
Disk | 2 | 310 | 44 | 2.8 | 40 | |||
Disk/torus (b) | 1 | 230 | 12 | 2.4 | 27 | “Star formation gas ring”, | ||
Outer torus | ≈130 | ≈50 | 800 | 185 | 6 | 27 | with solid body rotation | |
Outer torus | 500 | 115 | 1.5 | 27 | as visualized in Fig. A.1 | |||
Nuclear engine: | ||||||||
Inner torus (d) | ≈160 | ≈63 | 26 | ≈100 | 0.06 | 0.007 | 1.6 | Note torus axis tilt (d), caused by ≈30° precession angle |
Black hole (d) | 0.004 | Rapidly spinning SMBH | ||||||
Nuclear outflows: | ||||||||
Radio jet (c)(e) | ≈135 | ≈20 | ≈400 | 0.7c? | Table 2; Inclination caused by nuclear engine tilt | |||
CO outflow (f) | ≈135 | ≈20 | ≈400 | ≈70 | 5.9 | Sect. 4.3.1 and ref. (d); Inclination by nuclear engine tilt | ||
(≈80) | (≈2200) | (≈23) | (90) | Unlikely inclination alternative; See Sect. 4.3.2 | ||||
O III bi-cone (g) | 130 | 50 | ±2500 | ±200 | − | 0.001 | ≈12 | Hollow, wide angle (±50°) ionized gas “fountain” |
H I outflow | ≈160 | 2000 | ±200 | ≈10 | Fig. 7; Desorption/dissociation from icy grains? | |||
NGC 1377 | ||||||||
Nuclear disk (h) | 15 | ≈0 | 29 | 75 | 0.04 | 0.017 | ||
CO outflow (h) | 15 | ≈0 | 200 | 140 | − | 0.01−0.05 | 1.4 | Opening angle ≈60−70° |
Map area (j) | 15 | ≈0 | − | − | 0.16 | Size: 4″ × 4″ | ||
Accretion disk (j) | 15 | ≈0 | ≈10 | 110 | 0.03 | 0.018 | ≈1 | Rotation period |
Bipolar CO jet (j) | 15 | ±(10−25) (k) | ±150 | 240−850 (m) | − | 0.002−0.02 (m) | 0.2−0.7 | Precession period: 0.3−1.1 |
Notes.
(a)
This paper, Eq. (2).
(b)
This paper, Sect. 4.1.
(d)
Combes et al. (2019), who (in their Table 4) list an inner torus tilt, with an uncertainty of ±10°.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.