The gaseous content of the Blue Compact Galaxy Mrk 59

Details The gaseous content of the Blue Compact Galaxy Mrk 59 The gaseous content of the Blue Compact Galaxy Mrk 59

2001-09-20

arxiv.org/abs/astro-ph/0109335v1

Astronomy and Astrophysics

Astrophysics

Proceedings of the XVII IAP Colloquium "Gaseous Matter in Galaxies and Intergalactic Space"

Scientific paper

FUSE far-UV spectroscopy of the nearby metal-deficient (Zo/8) cometary Blue Compact Dwarf galaxy Mrk59 have been used to investigate element abundances in its interstellar medium. The lack of diffuse H2 (N(H2)<10e15 cm-2) is due to the combined effect of a strong UV radiation field and a low metallicity. By fitting the line profiles with multiple components having b=7kms-1 and spanning a radial velocity range of 100 kms-1, we derive heavy element abundances in the neutral gas. We find log N(OI)/N(HI)=-5.0+/-0.3, about a factor of 10 below the oxygen abundance of the supergiant HII region.

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