Kinematically Detected Polar Rings/Disks in Blue Compact Dwarf Galaxies

Автор: Moiseev A.
Сборник: EAS Publications Series
Серия: EAS Publications Series
Том: 48
Год издания: 2011
Издательство: EDP Sciences
Местоположение издательства: France
Первая страница: 115
Последняя страница: 118
DOI: 10.1051/eas/1148025
Аннотация: Polar ring galaxies are systems with nearly orthogonally rotated components. We have found the gas on polar (or strongly inclined) orbits in two BCD galaxies using ionized gas velocity fields taken with a Fabry-Perot interferometer of the SAO RAS 6-m telescope. Our analysis shows that all ionized gas in Mrk 33 is concentrated in a compact disk (3 kpc in diameter) which rotates in the polar plane relative to the main stellar body. The gaseous disk in Mrk 370 has a more complex structure with a heavily warped innermost part. The presence of polar gaseous structures supports an idea that current the burst of star formation in these galaxies is due to the external gas accretion or merging. A possible fraction of polar structures among BCD galaxies seems to be very large (up to 10-15%).
Добавил в систему: Моисеев Алексей Валерьевич

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