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...

  • 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...

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    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...

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    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...

  • Publicación
    CO /J = 2-1/ observations of southern H II regions

    Maps in the CO (J = 2-1) line of the southern H II region complexes Carina Nebula and G333.6-0.2/RCW 106 are presented and discussed. Results for the Carina...

  • Publicación
    Corrugations in the discs of spiral galaxies - NGC 4244 and 5023

    The morphological characteristics of corrugations in the disk shapes of the edge-on galaxies NGC 4244 and 5023 are described to determine some of the properties...