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Bright-red stars in the dwarf irregular galaxy Leo A
| Content Provider | Scilit |
|---|---|
| Author | Leščinskaitė, Alina Stonkutė, Rima Vansevičius, Vladas |
| Copyright Year | 2018 |
| Description | We analysed a population of bright-red (BR) stars in the dwarf irregular galaxy Leo A by using multicolour photometry data obtained with the Subaru/Suprime-Cam (B, V, R, I,Hα) and HST/ACS (F475W & F814W) instruments. In order to separate the Milky Way (MW) and Leo A populations of red stars, we developed a photometric method, which enabled us to study the spatial distribution of BR stars within the Leo A galaxy.We found a significant difference in the scale-length (S-L) of radial distributions of the “young” and “old” red giant branch (RGB) stars – 0′.82 ± 0′.04 and 1′53 ± 0′.03, respectively. Also, we determined the S-L of BR stars of 0′.85 ± 0′.05, which closely matches that of the “young” RGB stars. Additionally, we found a sequence of peculiar RGB stars and 8 dust-enshrouded stars in the Leo A galaxy. |
| Related Links | http://arxiv.org/pdf/1810.07471 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/1D60F07C292FF44179399DA7D7BA4770/S1743921318006427a.pdf/div-class-title-bright-red-stars-in-the-dwarf-irregular-galaxy-leo-a-div.pdf |
| ISSN | 17439213 |
| e-ISSN | 17439221 |
| DOI | 10.1017/s1743921318006427 |
| Journal | Proceedings of the International Astronomical Union |
| Issue Number | S344 |
| Volume Number | 14 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2018-08-01 |
| Access Restriction | Open |
| Subject Keyword | Proceedings of the International Astronomical Union Astronomy and Astrophysics Dwarf Individual (leo A) Stellar Content |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
