Magnetohydrodynamic simulations of molecular loops in the galactic center

Details Magnetohydrodynamic simulations of molecular loops in the galactic center Magnetohydrodynamic simulations of molecular loops in the galactic center

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007asthe.100..586m&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 100, No. 11, p. 586 - 591 (2007)

Astronomy and Astrophysics

Astronomy

Galactic Center

Scientific paper

Observations of galactic center molecular gas loops found by NANTEN indicate that the loops are buoyantly rising magnetic loops similar to those in the solar atmosphere. The authors carried out magnetohydrodynamic simulations of the formation of magnetic loops emerging from the gas disk. Numerical simulations reproduced velocity difference as large as 50 km/s along a loop. Shock waves are formed near the footpoints of the magnetic loops where the supersonically infalling gas hits the dense disk gas. The shock heating explains why the molecular gas in the galactic center is hotter than that in the outer disk.

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