Current Star Formation Rates in Early-Type Disk Galaxies With Outer Rings
| Main Authors: | Kostiuk, Irina, Silchenko, Olga |
|---|---|
| Format: | info Proceeding Journal |
| Bahasa: | eng |
| Terbitan: |
, 2018
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/1299580 |
Daftar Isi:
- By using the atlas of stellar rings ARRAKIS (Comer\'on et al. 2014) we have compiled the list of early-type, S0-Sb, disk galaxies with outer stellar ring-like features (56 rings and 61 pseudorings). Current star formation, with the mean age of the young stellar population less than 200 Myr, is present in about a half of the rings. We have determined dust-corrected star formation rates, SFR, as well as SFR surface densities and absolute AB magnitudes in the ultraviolet (NUV and FUV bands of the GALEX cosmic mission) and (FUV-NUV) colors for the outer rings and for the galaxies as a whole. For further analysis we have took the SFR values averaged over FUV and NUV estimates. We demonstrate the relations between the dust-corrected SFR characteristics, UV colors, the galaxy morphological types, and integrated absolute magnitudes for the galaxies and their ring structures.