other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2003MNRAS.342..259D - Mon. Not. R. Astron. Soc., 342, 259-273 (2003/June-2)
Star cluster formation and evolution in nearby starburst galaxies - I. Systematic uncertainties.
DE GRIJS R., FRITZE-v.ALVENSLEBEN U., ANDERS P., GALLAGHER III J.S., BASTIAN N., TAYLOR V.A. and WINDHORST R.A.
Abstract (from CDS):
We simultaneously obtain ages, metallicities and extinction values for ∼300 clusters in the nearby starburst galaxy NGC 3310, based on archival Hubble Space Telescope observations from the ultraviolet (UV) to the near-infrared (NIR). We show that for ages 6 ≲ log(age.yr–1) ≲ 9, and if one can only obtain partial coverage of the spectral energy distribution (SED), an optical passband combination of at least four filters including both blue and red passbands results in the most representative age distribution, as compared with the better constrained ages obtained from the full UV-NIR SED coverage. We find that while blue-selected passband combinations lead to age distributions that are slightly biased towards lower ages due to the well-known age-metallicity degeneracy, red-dominated passband combinations should be avoided.
NGC 3310 underwent a (possibly extended) global burst of cluster formation ∼3x107 yr ago. This coincides closely with the last tidal interaction or merger with a low-metallicity galaxy that probably induced the formation of the large fraction of clusters with (significantly) subsolar metallicities. The logarithmic slope of the V -band cluster luminosity function, for clusters in the range 17.7 ≲ F606W ≲ 20.2 mag, is αF606W ≃-1.8±0.4. The observed cluster system has a median mass of < log (m/ M☉) >≃ 5.25±0.1, obtained from scaling the appropriate model SEDs for known masses to the observed cluster SEDs.
Abstract Copyright: 2003 RAS
Journal keyword(s): H ii regions - galaxies: evolution - galaxies: individual: NGC 3310 - galaxies: interactions - galaxies: starburst - galaxies: star clusters
Simbad objects: 6
To bookmark this query, right click on this link: simbad:2003MNRAS.342..259D and select 'bookmark this link' or equivalent in the popup menu