Astrophysical: Techniques

  • Publication
    Measuring the expansion and age of the nova shell IPHASX J210204.7 + 471015
    The parallax expansion and kinematics of a nova shell can be used to assess its age and distance, and to investigate the interaction of the ejecta with the...
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    Measuring the mass of the black widow PSR J1555-2908
    Accurate measurements of the masses of neutron stars are necessary to test binary evolution models, and to constrain the neutron star equation of state. In...
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    MEGARA: The future IFU and MOS of the 10.4 m GTC
    In these proceedings we summarize the characteristics and current status of MEGARA, the future optical IFU and MOS for the 10.4 m GTC. MEGARA is being built by...
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    MELCHIORS. The Mercator Library of High Resolution Stellar Spectroscopy
    Aims: Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a...
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    Metallicities in M dwarfs: Investigating different determination techniques
    Deriving metallicities for solar-like stars follows well-established methods, but for cooler stars such as M dwarfs, the determination is much more complicated...
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    Metallicity, temperature, and gravity scales of M subdwarfs
    Aims: The aim of the project is to define metallicity/gravity/temperature scales for different spectral types of metal-poor M dwarfs. Methods: We obtained...
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    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...
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    Mid-infrared imaging- and spectro-polarimetric subarcsecond observations of NGC 1068
    We present subarcsecond 7.5-13 μm imaging- and spectro-polarimetric observations of NGC 1068 using CanariCam on the 10.4-m Gran Telescopio CANARIAS. At all...
  • Publication
    Mid-infrared Spectral Variability Atlas of Young Stellar Objects
    Optical and near-infrared variability is a well-known property of young stellar objects. However, a growing number of recent studies claim that a considerable...