Secular evolution in galaxies
2006 ◽
Vol 2
(S235)
◽
pp. 19-23
◽
Keyword(s):
AbstractNew observations in favour of a significant role of secular evolution are reviewed: central star formation boosted in pseudo-bulge barred galaxies, relations between bulge and disk, evidence for rejuvenated bulges. Numerical simulations have shown that secular evolution can occur through a cycle of bar formation and destruction, in which the gas plays a major role. Since bars are weakened or destroyed in gaseous disks, the high frequency of bars observed today requires external cold gas accretion, to replenish the disk and allow a new bar formation. The rate of gas accretion from external filaments is compatible with what is observed in cosmological simulations.
2020 ◽
Vol 499
(1)
◽
pp. 1406-1423
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2012 ◽
Vol 10
(H16)
◽
pp. 366-366
Keyword(s):
2010 ◽
Vol 6
(S271)
◽
pp. 119-126
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Keyword(s):
The age–chemical abundance structure of the Galactic disc – II. α-dichotomy and thick disc formation
2020 ◽
Vol 497
(2)
◽
pp. 2371-2384
◽
1996 ◽
Vol 157
◽
pp. 560-568
2010 ◽
Vol 6
(S270)
◽
pp. 7-17
2011 ◽
Vol 7
(S284)
◽
pp. 349-351
Keyword(s):
2006 ◽
Vol 2
(S235)
◽
pp. 310-310
1996 ◽
Vol 157
◽
pp. 286-298