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1999MNRAS.306..975G - Mon. Not. R. Astron. Soc., 306, 975-987 (1999/July-2)
Global velocity field and bubbles in the blue compact dwarf galaxy Mrk 86.
GIL DE PAZ A., ZAMORANO J. and GALLEGO J.
Abstract (from CDS):
Kinematical evidences for two expanding bubbles, Mrk86-B and Mrk86-C, are given. They show expanding velocities of 34 and 17km.s–1, Hα luminosities of 3x1038 and 1.7x1039erg.s–1, and physical radii of 374and 120pc, respectively. The change in the [Sii]/Hα, [Nii]/Hα, [Oii]/[Oiii] and [Oiii]/Hβ line ratios with the distance to the bubble precursor suggests a diminution in the ionization parameter and, in the case of Mrk86-B, an enhancement of the shock-excited gas emission. The optical-near-infrared colours of the bubble precursors are characteristic of low-metallicity star-forming regions (∼0.2Z☉) with burst strengths of about 1 per cent in mass.
Abstract Copyright: 1999 RAS
Journal keyword(s): ISM: bubbles - galaxies: compact - galaxies: individual: Mrk86 - galaxies: irregular - galaxies: kinematics and dynamics
Nomenclature: Table 3: [M98b] NGC 2537-A (Nos B, C) added. Text, Figs: [GZG99] NN N=4 among (Nos 1-55).
Simbad objects: 12
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