Starburst triggered by compressive tides in galaxy mergers

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Starburst triggered by compressive tides in galaxy mergers. / Renaud, F.; Theis, Ch.; Boily, C.~M.

In: Astronomische Nachrichten, Vol. 329, No. 9-10, 01.12.2008, p. 1050-1052.

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Renaud, F. ; Theis, Ch. ; Boily, C.~M. / Starburst triggered by compressive tides in galaxy mergers. In: Astronomische Nachrichten. 2008 ; Vol. 329, No. 9-10. pp. 1050-1052.

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TY - JOUR

T1 - Starburst triggered by compressive tides in galaxy mergers

AU - Renaud, F.

AU - Theis, Ch.

AU - Boily, C.~M.

PY - 2008/12/1

Y1 - 2008/12/1

N2 - The tidal field of galaxies is known generally to be disruptive. However, in the case of galaxy mergers, a compressive mode of tidal wave may develop and last long enough to cocoon the formation of star clusters. Using an N‐body simulation of the Antennae galaxies, we derive the positions of these compressive regions and the statistics of their duration. Excellent agreement between the spatial distribution of tides and observed young clusters is found, while the characteristic e‐folding times of 10 to 30 Myr derived for the tidal field compare well with cluster formation time‐scales.

AB - The tidal field of galaxies is known generally to be disruptive. However, in the case of galaxy mergers, a compressive mode of tidal wave may develop and last long enough to cocoon the formation of star clusters. Using an N‐body simulation of the Antennae galaxies, we derive the positions of these compressive regions and the statistics of their duration. Excellent agreement between the spatial distribution of tides and observed young clusters is found, while the characteristic e‐folding times of 10 to 30 Myr derived for the tidal field compare well with cluster formation time‐scales.

KW - galaxies: evolution, galaxies: individual (NGC4038/39) -galaxies: interactions, galaxies: starburst, galaxies: star clusters, stars: formation, Astrophysics

U2 - 10.1002/asna.200811083

DO - 10.1002/asna.200811083

M3 - Artikel i vetenskaplig tidskrift

VL - 329

SP - 1050

EP - 1052

JO - Astronomical Notes - Astronomische Nachrichten

JF - Astronomical Notes - Astronomische Nachrichten

SN - 0004-6337

IS - 9-10

ER -