The complete set of data from the Tenerife 10-GHz (8-deg FWHM) twin-horn, drift scan experiment is described. These data are affected by both long-term...
-
Publication10-GHz Tenerife cosmic microwave background observations at 8 deg resolution and their analysis using a new maximum entropy method
-
PublicationA Case against a Significant Detection of Precession in the Galactic Warp
Recent studies of warp kinematics using Gaia DR2 data have produced detections of warp precession for the first time, which greatly exceeds theoretical...
-
NewsA large tidal stream observed in the Sombrero galaxy
According to the latest cosmological models, large spiral galaxies such as the Milky Way grew by absorbing smaller galaxies, by a sort of galactic cannibalism...
-
NewsA primitive stellar structure helps us to unravel the earliest phases of the Milky Way
Just as archaeology examines the ground with great care to find valuable objects which helps us to get to know ancient civilizations, astronomers look at the...
-
PublicationA search for new objects in the transition phase between AGB-stars and planetary nebulae
Preliminary results are presented from a spectroscopy survey of IRAS sources with colors similar to those of planetary nebulae. Two new planetary nebulae, some...
-
PublicationAbundance gradient for 13 planetary nebulae in the Galaxy
Via optical low-resolution long slit spectroscopy conducted at the 2.5 m INT in La Palma, He, O, N, Ne, A, and S abundances in 13 extended PN were calculated...
-
PublicationAnisotropy measurements of the cosmic microwave background radiation at intermediate angular scales
Galaxy formation by gravitational instability implies the presence of temperature fluctuations in the cosmic microwave background. New observations at 10.45 and...
-
NewsAstronomers detect large amounts of oxygen in the atmosphere of a primitive star
Scientists from the Instituto de Astrofísica de Canarias (IAC), in collaboration with the University of Cambridge and the University of California San Diego...
-
PublicationCharting the Galactic Acceleration Field. I. A Search for Stellar Streams with Gaia DR2 and EDR3 with Follow-up from ESPaDOnS and UVES
We present maps of the stellar streams detected in the Gaia Data Release 2 (DR2) and Early Data Release 3 (EDR3) catalogs using the STREAMFINDER algorithm. We...