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Parameters of the brightest star formation regions in the two principal spiral arms of NGC 628
Alexander S. Gusev, Oleg V. Egorov, Firouz Sakhibov
We study photometric properties, chemical abundances and sizes of star formation regions in the two principal arms of the galaxy NGC 628 (M74). The GALEX ultraviolet, optical UBVRI…
Regular chains of star formation complexes in spiral arms of NGC 628
Alexander S. Gusev, Yuri N. Efremov
We investigate photometric properties of spiral arms and stellar complexes/associations inside these arms in the grand design NGC 628 (M74) galaxy.We analyze GALEX ultraviolet, opt…
Parameters of galactic disks at optical and NIR wavelengths
Alexander S. Gusev, Svetlana A. Guslyakova, Maria S. Khramtsova
We have analyzed the radial scales, central surface brightnesses, and colors of 404 disks of various types of galaxies. The central surface brightness mu0 and linear disk scale len…
Spectroscopy of H II Regions in the Late-Type Spiral Galaxy NGC 6946
Alexander S. Gusev, Firouz Sakhibov, Sergey N. Dodonov
We present the results of spectroscopy of 39 H II regions in the spiral galaxy NGC 6946. The spectral observations were carried out at the 6-m BTA telescope of the SAO RAS with the…