Electron densities of HII regions throughout the NGC 6946 disk
We have used the tuneable filter system of OSIRIS to observe the [SII] doublet lines at λλ617.7 and 673.1 nm in emission across the full face of NGC 6946, and...
The technology division of the Instituto de Astrofisica de Canarias (IAC) is developing a data acquisition system (DAS) for an IR camera to be used at the 1.5m...
Electronics and mechanisms control system for FRIDA (inFRared Imager and Dissector for Adaptive optics)
FRIDA will be a common-user near infrared imager and integral field spectrograph covering the wavelength range from 0.9 to 2.5 microns. Primary observing modes...
I report on a critical analysis of the scenario of electroweak baryogenesis mediated by nonsuperconducting cosmic strings. This mechanism relies upon...
High-resolution spectra of the program stars were obtained during the period 2002 December-2004 June at the Harlan J. Smith 2.7-m telescope of the W.J. McDonald...
Here, we discussed our recent results of elemental abundance survey of Galactic disk based on 181 F- and G-type dwarfs (published by Reddy et al. 2003, MNRAS...
Elemental Abundances of Planet-Host Cool Dwarfs: Clues on Planet Formation and Evolution
Since a large fraction of stars harbor at least one planet, the formation of planets around newly forming stars appears to be a common phenomenon. Planet cores...