Recent Talks
List of all the talks in the archive, sorted by date.
Thursday March 19, 2009
Mr. Ruymán Azzollini
Instituto de Astrofísica de Canarias, Spain; Instituto de Estructura de la Materia, CSIC, Spain
Abstract
Wednesday March 18, 2009
Mr. Ruymán Azzollini.
Instituto de Astrofísica de Canarias, Spain; Instituto de Estructura de la Materia, CSIC, Spain
Abstract
Wednesday March 18, 2009
Dr. Ana Chies Santos
Astronomical Institute Utrecht, the Netherlands
Abstract
The colour distribution of globular cluster (GC) systems in the majority of galaxies is bi/multimodal in optical colours. It is widely accepted that multiple populations differing in metallicity exist implying different mechanisms/epochs of star formation, with small age differences still being allowed due to the large current uncertainties. Recently Yoon, Yi and Lee (2006) challenged this interpretation stating that the metallicity bimodality is an artifact of the horizontal branch (HB) morphologies that can transform a unimodal metallicity distribution in a bimodal (optical) colour distribution. The combination of optical and near-infrared (NIR) colours can in principal break the age/metallicity degeneracy inherent in optical colours alone, allowing age estimates for a large sample of GCs possible at the same time. It has been shown that the colours that best represent the true metallicity distributions are the combination of optical and NIR (eg. Puzia et al. 2002, Cantiello & Blakeslee 2007). Therefore studying GCs in the NIR is crucial to reveal their true metallicity distributions. We are currently building a homogeneous optical/NIR data set of GC systems in a large sample of elliptical and lenticular galaxies. I will present the sample, an attempt to estimate overall ages and metallicities for the GC systems and the optical/NIR colour distributions.
Wednesday March 18, 2009
Mr. Ruymán Azzollini
Instituto de Astrofísica de Canarias, Spain; Instituto de Estructura de la Materia, CSIC, Spain
Abstract
Tuesday March 17, 2009
Mr. Jorge Pérez Prieto
Instituto de Astrofísica de Canarias, Spain
Abstract
Tuesday March 17, 2009
Mr. Jorge Pérez Prieto
Instituto de Astrofísica de Canarias, Spain
Abstract
Monday March 16, 2009
Mr. Jorge Pérez Prieto
Instituto de Astrofísica de Canarias, Spain
Abstract
Monday March 16, 2009
Mr. Jorge Pérez Prieto
Instituto de Astrofísica de Canarias, Spain
Abstract
Thursday March 12, 2009
Dr. Nick Scoville
California Institute of Technology, USA
Abstract
The COSMOS survey is the largest high redshift galaxy evolution survey ever done -- imaging 2 square degrees with all major space-based and ground based observatories. I will describe the key data in the survey and then present recent results on large-scale structures, the dark matter distributions and galaxy evolution.
Wednesday March 11, 2009
Dr. Jordi Cepa
Instituto de Astrofísica de Canarias, Spain
Abstract
The standard scientific operations of the instrument OSIRIS will start at the GTC by mid March. The first tests of the instrument once mounted on the telescope are now finished and during this talk we will show the results of the instrument characterization and final performance. We will present the plans for the future commissioning of the remaining observing modes as well as the next implementations expected for OSIRIS.
Upcoming talks
- Harmoni IFS Pre-Optics SCT Prototype testsRafael Melgar HernándezFriday April 4, 2025 - 11:30 GMT+1 (Aula)
- Latest Neutrino Achievements and Possible Synergies to Science in the IACProf. Anatael CabreraTuesday April 8, 2025 - 12:30 GMT+1 (Aula)
Recent Colloquia
Recent Talks
