Spectro-imagery of small diameter galaxies. I - Markarian 600 = MCG 1-08-008

Details Spectro-imagery of small diameter galaxies. I - Markarian 600 = MCG 1-08-008 Spectro-imagery of small diameter galaxies. I - Markarian 600 = MCG 1-08-008

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...233..348a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 233, no. 2, July 1990, p. 348-356.

Astronomy and Astrophysics

Astrophysics

4

Astronomical Spectroscopy, Blue Stars, Galactic Evolution, Markarian Galaxies, Hot Stars, Hydrogen, Line Spectra, Stellar Evolution, Ultraviolet Radiation

Scientific paper

The blue dwarf irregular galaxy Markarian 600 was observed by classical (slit) spectrography as well as bidimensional (fiber optics) spectrography. This object is found to be metal-deficient (about 1/8 solar) with an underabundant young stellar content. Two knots of gas ionized by hot stars (Teff about 50,000 K) are imbedded in a faint red envelope corresponding to an old stellar population. The observations can be explained in terms of a recent period of star formation at a constant rate during the last 1.5 x 10 to the 8th years. The origin of this starburst is not clear.

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