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Photometric redshift requirements for lens galaxies in galaxy-galaxy lensing analyses
requirements lens galaxies'galaxy-galaxy lensing analyses
2011/9/29
Weak gravitational lensing is a valuable probe of galaxy formation and cosmology. Here we quantify the effects of using photometric redshifts (photo-z) in galaxy-galaxy lensing, for both sources and l...
David vs. Goliath: pitfalls and prospects in abundance analyses of dwarf vs. giant stars
Solar and Stellar Astrophysics (astro-ph.SR) Galaxy Astrophysics (astro-ph.GA)
2010/12/29
I review some of the current limitations in modelling stellar atmospheres of solar-type stars and approaches to overcome them.