Astrophysical: Astrochemistry

  • Publication
    Irradiation origin and stability of CO on trans-Neptunian objects: Laboratory constraints and observational evidence from JWST/DiSCo-TNOs
    Context. The James Webb Space Telescope large program DiSCo-TNOs has recently shown that CO 2 ice is ubiquitous on 54 mediumsize trans-Neptunian objects (TNOs)...
  • Publication
    Mid- and far-infrared spectroscopy of nucleobases: molar extinction coefficients, integrated molar absorptivity, and temperature dependence of the main bands
    The nucleobases, namely the purines adenine and guanine and the pyrimidines cytosine, thymine, and uracil, are the key monomers of the information polymers DNA...
  • Talk
    MILES: population synthesis for the 21st century
    We present the new stellar population synthesis models based on the empirical stellar spectral library MILES, which can be regarded nowadays as standard in the...
  • Publication
    Molar extinction coefficient of fullerenes and related hydrogenated derivatives ``fulleranes''
    Fullerenes, the carbon molecules with 60 and 70 atoms, were recently detected in a series of planetary nebulae, in protoplanetary nebulae and in other...
  • Publication
    Molecular processes from the AGB to the PN stage
    Many complex organic molecules and inorganic solid-state compounds have been observed in the circumstellar shell of stars (both C-rich and O-rich) in the...
  • Talk
    New Advances in Nebular Spectroscopy of Heavy Elements
    The origins of neutron(n)-capture elements (atomic number Z > 30) have historically been discerned from the interpretation of stellar spectra. However, in the...
  • Publication
    New ATLAS9 and MARCS Model Atmosphere Grids for the Apache Point Observatory Galactic Evolution Experiment (APOGEE)
    We present a new grid of model photospheres for the SDSS-III/APOGEE survey of stellar populations of the Galaxy, calculated using the ATLAS9 and MARCS codes...
  • Publication
    New H-band Stellar Spectral Libraries for the SDSS-III/APOGEE Survey
    The Sloan Digital Sky Survey-III (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) has obtained high-resolution (R ∼ 22,500), high...
  • Publication
    Nonequilibrium CO Chemistry in the Solar Atmosphere
    Investigating the reliability of the assumption of instantaneous chemical equilibrium (ICE) for calculating the CO number density in the solar atmosphere is of...