Volume 415, Number 2, February IV 2004
|Page(s)||L27 - L30|
|Published online||11 February 2004|
Letter to the Editor
Discovery of the high-ionization emission line [Ne V] λ3426 in the blue compact dwarf galaxy Tol 1214–277*
Main Astronomical Observatory, Ukrainian National Academy of Sciences, Zabolotnoho 27, Kyiv 03680, Ukraine
2 Universitäts-Sternwarte, Geismarlandstraße 11, 37083 Göttingen, Germany
3 University of California, 1156 High St., Santa Cruz, CA 95064, USA
4 Department of Astronomy, University of Virginia, Charlottesville, VA 22903, USA
Corresponding author: Y. I. Izotov, email@example.com
Accepted: 10 January 2004
The discovery of the high-ionization [Ne v] λ3426 Å emission line in the spectrum of the blue compact dwarf (BCD) galaxy Tol 1214–277 is reported. The detection of this line implies the presence of intense ionizing X-ray emission with a luminosity Lx in the range 1039–1040 erg s-1. Such a high X-ray luminosity cannot be reproduced by models of massive stellar populations. Other mechanisms, such as fast shocks or accretion of gas in high-mass X-ray binaries need to be invoked to account for the high intensity of the [Ne v] λ3426 Å emission line.
Key words: galaxies: abundances / galaxies: dwarf / galaxies: evolution / galaxies: compact / galaxies: starburst / galaxies: stellar content / galaxies: individual Tol 1214–277
© ESO, 2004
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