Azimuthal propagation of star formation in nearby spiral galaxies: NGC 628, NGC 3726, and NGC 6946-Reference-Cited by-同舟云学术

Azimuthal propagation of star formation in nearby spiral galaxies: NGC 628, NGC 3726, and NGC 6946

Published:2021-09-30 Issue:1 Volume:508 Page:912-925
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Sakhibov F¹,Gusev A S²^ORCID,Hemmerich C¹

Affiliation:

1. University of Applied Sciences of Mittelhessen, Campus Friedberg, Department of Mathematics, Natural Sciences and Data Processing, Wilhelm-Leuschner-Straße 13, D-61169 Friedberg, Germany

2. Sternberg Astronomical Institute, Lomonosov Moscow State University, Universitetsky pr. 13, 119234 Moscow, Russia

Abstract

ABSTRACT Star formation induced by a spiral shock wave, which in turn is generated by a spiral density wave, produces an azimuthal age gradient across the spiral arm, which has opposite signs on either side of the corotational resonance. An analysis of the spatial separation between young star clusters and nearby H ii regions has made it possible to determine the position of the corotation radius in the galaxies studied. Fourier analysis of the gas velocity field in the same galaxies independently confirmed the corotation radius estimates obtained by the morphological method presented here.

Funder

Russian Foundation for Basic Research

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

http://academic.oup.com/mnras/article-pdf/508/1/912/40481376/stab2532.pdf

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