2005: Past Meets Present in Astronomy And Astrophysics: by Jose Afonso, Nuno Santos, Andre Moitinho, Rui Agostinho

By Jose Afonso, Nuno Santos, Andre Moitinho, Rui Agostinho

Show description

Read or Download 2005: Past Meets Present in Astronomy And Astrophysics: Proceedings of the 15th Portuguese National Meeting PDF

Similar mathematicsematical physics books

Functionalized Nanoscale Materials, Devices and Systems (NATO Science for Peace and Security Series B: Physics and Biophysics)

This publication arises from the NATO complex learn Institute (ASI) titled "Functionalized Nanoscale fabrics, units, and structures for chem. -bio Sensors, Photonics, and effort new release and garage" held in Sinaia, Romania in June 2007. It includes numerous invited contributions through hugely skilled educators, scientists, and industrialists, and is dependent to hide vital facets of the sphere, from underlying ideas, synthesis routes, characterizations, purposes, and certain concerns of industrial viability.

Physics and Probability: Essays in Honor of Edwin T. Jaynes

The pioneering paintings of Edwin T. Jaynes within the box of statistical physics, quantum optics, and chance thought has had an important and lasting impact at the examine of many actual difficulties, starting from primary theoretical questions via to sensible purposes comparable to optical picture recovery.

From Number Theory to Physics

Numerous advancements in physics have concerned many questions regarding quantity idea, in an more and more direct method. This development is mainly seen in vast households of difficulties, specifically, box theories, and dynamical structures and chaos. The 14 chapters of this booklet are prolonged, self-contained models of expository lecture classes given at a college on "Number idea and Physics" held at Les Houches for mathematicians and physicists.

Extra info for 2005: Past Meets Present in Astronomy And Astrophysics: Proceedings of the 15th Portuguese National Meeting

Example text

85] Though statistics are poor with such small numbers, and prevent us from drawing any firm conclusions, some trends do come up: as expected, EL galaxies dominate the field sample, as opposed to N galaxies in clusters; K + A s are more a b u n d a n t in intermediate-z clusters relatively to the field likely due t o environment, if we d o n ' t consider t h e case of CL2249-3958 which, as already stated, is a particular system with atypical characteristics. References 1. Balogh, M. , S. , Yee, H.

31 32 2. 1. Using the Solar spectrum Our main purpose is to test equivalent width measurements. We will compare the calculations from DAOSPEC with the hard "hand made" measurements obtained using the IRAF a routine "splot" within the "echelle" package. We are also concerned about the reaction of DAOSPEC to different types of spectra. Therefore we will test the reaction of this code for spectra with different rates of noise and instrumental resolutions. The Sun is used as our object of study. For this purpose we used the Kurucz Solar Atlas and produced from it several spectra with different rates of artificial noise and resolution.

A total of 44 stars were chosen from this stellar library in order to cover the temperature/gravity parameter space as much as possible without being degenerate. 63 stellar features were then identified and the EW measured, for each star of the database. The synthesis was performed for 44 galaxies in the CL0048-2942 field of view (19 belonging to the cluster), 45 galaxies in the CL2245-3954 area (13 belonging to the cluster) and 51 galaxies in the direction of CL2249- 49 3958 (10 being cluster members).

Download PDF sample

Rated 4.26 of 5 – based on 21 votes