PPMXL photometric study of four open cluster candidates (Ivanov 2, Ivanov 7, Ivanov 9 and Harvard 9)
| Autor: | A. L. Tadross, R. Bendary |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Physics
Galactic Center FOS: Physical sciences Astronomy and Astrophysics Radius Astrophysics Astrometry Astrophysics::Cosmology and Extragalactic Astrophysics Galactic plane Astrophysics - Astrophysics of Galaxies Luminosity Distance modulus Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Stellar density Astrophysics::Galaxy Astrophysics Open cluster |
| DOI: | 10.48550/arxiv.1403.3014 |
| Popis: | The astrophysical parameters of four unstudied open star cluster candidates - Harvard 9, Ivanov 2, Ivanov 7, and Ivanov 9 - have been estimated for the first time using the PPMXL database. The stellar density distributions and color-magnitude diagrams for each cluster are used to determine the geometrical structure (cluster center, limited radius, core and tidal radii, the distances from the Sun, from the Galactic center and from the Galactic plane). Also, the main photometric parameters (age, distance modulus, color excesses, membership, total mass, relaxation time, luminosity and mass functions) are estimated. Comment: 16 pages, 6 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|