Secular evolution of stellar bars, vertical instabilities and starbursts

Bibcode
2005ASSL..329P..48M
Martínez-Valpuesta, I.; Shlosman, I.
Bibliographical reference

Starbursts: From 30 Doradus to Lyman Break Galaxies, Held in Cambridge, UK, 6-10 September 2004. Edited by R. de Grijs and R.M. González Delgado. Astrophysics & Space Science Library, Vol. 329. Dordrecht: Springer, 2005, p.P48

Advertised on:
5
2005
Number of authors
2
IAC number of authors
0
Citations
0
Refereed citations
0
Description
Vertical instabilities, buckling, in stellar bars weaken and shorten the bar. This can interrupt the bar-induced gas inflow into the central kpc of a galaxy for ˜ 1 Gyr. The subsequent bar growth in length and in amplitude can lead to a recurrent buckling. The first buckling results in the formation of a peanut/boxy-shaped bulge when viewed edge-on, and the second buckling forms an X-shaped bulge. The secular growth of the bar and the recurrent buckling can lead to important observational corollaries in bar fraction, bar detection, offset dust lanes, bar size-to-corotation ratio, etc.
Type
Non-refereed

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