Recent Talks
List of all the talks in the archive, sorted by date.
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.
Thursday February 26, 2009
Dr. Ángel de Vicente
Instituto de Astrofísica de Canarias, Spain
Abstract
If you do any amount of programming, you have certainly found that at some point during its development your code did not work as expected. Perhaps it simply crashed and told you that a core dump was created; perhaps it always gave you an "incorrect" result or perhaps it just behaved "oddly" given some input combinations. In any case, you were face to face with a "bug". And what did you do to correct your code? If the answer was to put "printf"s around the code and run it again, you should attend this talk in which we'll see an introduction on how to debug your programs with a debugger. The debugger (available for most programming languages) is a really easy-to-use tool that lets you run your application in a special mode, so that you can run it step by step, or stop at certain points, inspect variables, etc., which is a great aid to find what is wrong with your code without the need of changing its source.Upcoming talks
- The origin of Fast X-ray TransientsProf. Peter G. JonkerTuesday May 13, 2025 - 10:30 GMT+1 (Aula)
- IAC Breaking NewsDr. José Ramón Bermejo Climent, Dr. Marc Huertas CompanyTuesday May 27, 2025 - 10:30 GMT+1 (Aula)
Recent Colloquia
Recent Talks
