Astrophysical: Milky Way Galaxy

  • Publication
    10-GHz Tenerife cosmic microwave background observations at 8 deg resolution and their analysis using a new maximum entropy method

    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...

  • Publication
    A Blueprint for the Milky Way's Stellar Populations. IV. A String of Pearls-the Galactic Starburst Sequence

    We continue our series of papers on phase-space distributions of stars in the Milky Way based on photometrically derived metallicities and Gaia astrometry, with...

  • Publication
    A 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...

  • News
    A 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...

  • News
    A 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...

  • Publication
    A 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...

  • Publication
    A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE

    We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), α-element abundances ([Mg/Fe]), and stellar age, using a sample of...

  • Publication
    Abundance 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...

  • Publication
    Anisotropy 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...