Star-forming complexes in the polar ring galaxy NGC660

Baltic astronomy

article

Ksenia I. Smirnova¹  Dmitri S. Wiebe²  Alexei V. Moiseev³ 

[1] Ural Federal University;Institute of Astronomy, Russian Academy of Sciences;Space Research Institute, Russian Academy of Sciences

关键词: NGC660-galaxies;    star formation;   

DOI  :  10.1515/astro-2017-0022

来源: Institute of Theoretical Physics and Astronomy

【 摘 要 】

Galaxies with polar rings consist of two subsystems, a disk and a ring, which rotate almost in orthogonal planes. In this paper, we analyze the parameters characterizing the composition of the interstellar medium and star formation in star-forming complexes belonging to polar ring galaxy NGC660. We show that star-forming regions in the ring of the galaxy are distinctly different from those in the galaxy disk. They possess substantially lower infrared luminosities, which is indicative of less dust mass in these regions than in a typical disk star-forming region. UV and Hα luminosities also appear to be lower in the ring, which is likely a consequence of its relatively recent formation.

【 授权许可】

Unknown