|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Gravitational torques imply molecular gas inflow towards the nucleus of M51 | | M. Querejeta
; S. Meidt
; E. Schinnerer
; S. García-Burillo
; C. Dobbs
; D. Colombo
; G. Dumas
; A. Hughes
; C. Kramer
; A. Leroy
; J. Pety
; K. Schuster
; T. Thompson
; | | Date: |
12 Oct 2015 | | Abstract: | The transport of gas towards the centre of galaxies is critical for black
hole feeding and, indirectly, it can control active galactic nucleus (AGN)
feedback. We have quantified the molecular gas inflow in the central R<1kpc of
M51 to be 1 Msun/yr, using a new gravitational torque map and the molecular gas
traced by the PdBI Arcsecond Whirlpool Survey (PAWS). The nuclear stellar bar
is responsible for this gas inflow. We have also used torque profiles to
estimate the location of dynamical resonances, suggesting a corotation for the
bar at R~20", and a corotation for the spiral at R~100". We demonstrate how
important it is to correct 3.6um images for dust emission in order to compute
gravitational torques, and we carefully examine further sources of uncertainty.
Our observational measurement of gas inflow can be compared with nuclear
molecular outflow rates and provide useful constraints for numerical
simulations. | | Source: | arXiv, 1510.3440 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER