Astrofísicas: Via Láctea

  • Publicación
    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...

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    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...

  • Publicación
    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...

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    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...

  • Publicación
    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...

  • Publicación
    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...

  • Publicación
    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...

  • Publicación
    Charting 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...

  • Publicación
    Chemical abundances in the young galaxy at Z = 2.309 towards PHL 957

    We present high-resolution Utrecht Echelle Spectrograph spectra of the quasar PHL 957, obtained in order to study the foreground damped Ly-alpha (DLA) galaxy at...