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| Query : 2012MNRAS.425.1511H |
2012MNRAS.425.1511H - Mon. Not. R. Astron. Soc., 425, 1511-1520 (2012/September-2)
The effect of ISM turbulence on the gravitational instability of galactic discs.
HOFFMANN V. and ROMEO A.B.
Abstract (from CDS):
We investigate the gravitational instability of galactic discs, treating stars and cold interstellar gas as two distinct components, and taking into account the phenomenology of turbulence in the interstellar medium (ISM), i.e. the Larson-type scaling relations observed in the molecular and atomic gas. Besides deriving general properties of such systems, we analyse a large sample of galaxies from The HI Nearby Galaxy Survey (THINGS), and show in detail how interstellar turbulence affects disc instability in star-forming spirals. We find that turbulence has a significant effect on both the inner and the outer regions of the disc. In particular, it drives the inner gas disc to a regime of transition between two instability phases and makes the outer disc more prone to star-dominated instabilities.
Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society 2012 RAS
Journal keyword(s): instabilities - turbulence - ISM: kinematics and dynamics - ISM: structure - galaxies: ISM - galaxies: kinematics and dynamics
Simbad objects: 12
| Number of rows : 12 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M 74 | G | 01 36 41.7451236624 | +15 47 01.107512304 | 10.52 | 10.00 | 9.46 | 9.16 | ~ | 1934 | 1 | |
| 2 | NGC 2841 | LIN | 09 22 02.6778711696 | +50 58 35.737082868 | 10.43 | 10.09 | 9.22 | ~ | 1113 | 1 | ||
| 3 | NGC 3180 | GiG | 10 18 16.985 | +41 25 27.77 | 10.4 | ~ | 777 | 0 | ||||
| 4 | NGC 3198 | EmG | 10 19 54.990 | +45 32 58.88 | 10.83 | 10.87 | 10.33 | ~ | 946 | 1 | ||
| 5 | M 95 | GiP | 10 43 57.7313485800 | +11 42 13.301191332 | 10.71 | 10.51 | 9.73 | 9.48 | ~ | 1238 | 2 | |
| 6 | NGC 3521 | EmG | 11 05 48.5680991376 | -00 02 09.245076540 | 10.06 | 9.83 | 9.02 | 10.1 | 9.6 | ~ | 879 | 2 |
| 7 | M 66 | AGN | 11 20 15.0 | +12 59 29 | 9.85 | 9.65 | 8.92 | ~ | 1509 | 4 | ||
| 8 | M 94 | SyG | 12 50 53.0737971432 | +41 07 12.900884628 | 9.15 | 8.96 | 8.24 | 7.78 | ~ | 1476 | 2 | |
| 9 | M 63 | LIN | 13 15 49.2741893928 | +42 01 45.728076108 | 9.34 | 8.59 | 8.35 | ~ | 1292 | 2 | ||
| 10 | M 51 | Sy2 | 13 29 52.698 | +47 11 42.93 | 9.26 | 8.36 | 8.40 | ~ | 4565 | 4 | ||
| 11 | NGC 6946 | H2G | 20 34 52.332 | +60 09 13.24 | 10.5 | ~ | 2661 | 2 | ||||
| 12 | NGC 7331 | LIN | 22 37 04.0506038088 | +34 24 56.800076508 | 10.65 | 10.35 | 9.48 | ~ | 1284 | 2 |
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