The steep abundance gradient found by McCall, Shields, and Rybski (1981) in the Sbc galaxy NGC 3344 is confirmed by a measurement of the electron temperature in...
The embedded cluster IRAS17136 - 3617 associated with the nebulosity GM24
Radio, infrared, and optical observations of the embedded infrared cluster IRAS17136 - 3617 are reviewed. The cluster consists of more than 25 stars with a...
The extended nebulosity in the radio galaxy 3C 227
3C 227 (z = 0.085) exhibits one of the more spectacular extended nebulosities to be found among active galaxies at moderate redshifts. The gas can be traced to...
Recent data on, and interpretations of the Kleinmann-Low nebula are examined. It is suggested that associated high velocity gas is radiatively accelerated by a...
Tracing the Chemical Evolution of Metals in local Star-Forming Galaxies: aperture effects and abundance patterns
Nebular emission lines are a powerful diagnostic tool for tracing the chemical evolution in star-forming galaxies (SFGs) across cosmic time. Due to their...
Una burbuja interestelar gigante crece en la galaxia de Andrómeda
Un estudio internacional en el que participan investigadores del Instituto de Astrofísica de Canarias (IAC) y la Universidad de La Laguna (ULL) ha descubierto...