Astrophysical: Techniques

  • Publication
    Detection of Fe I and Fe II in the atmosphere of MASCARA-2b using a cross-correlation method
    Ultra-hot Jupiters are gas giants planets whose dayside temperature is greater than 2200 K as a consequence of the strong irradiation received from the host...
  • Publication
    Detection of He I λ10830 Å absorption on HD 189733 b with CARMENES high-resolution transmission spectroscopy
    We present three transit observations of HD 189733 b obtained with the high-resolution spectrograph CARMENES at Calar Alto. A strong absorption signal is...
  • Publication
    Detection of iron emission lines and a temperature inversion on the dayside of the ultra-hot Jupiter KELT-20b
    Ultra-hot Jupiters (UHJs) are gas giants with very high equilibrium temperatures. In recent years, multiple chemical species, including various atoms and ions...
  • Publication
    Detection of Large Acoustic Energy Flux in the Solar Atmosphere
    We study the energy flux carried by acoustic waves excited by convective motions at sub-photospheric levels. The analysis of high-resolution spectropolarimetric...
  • Publication
    Detection of Na in the atmosphere of the hot Jupiter HAT-P-55b
    The spectral signatures of optical absorbers, when combined with those of infrared molecules, play a critical role in constraining the cloud properties of...
  • Publication
    Detection of Na in WASP-21b's lower and upper atmosphere
    Optical transmission spectroscopy provides crucial constraints on the reference pressure levels and scattering properties for the atmospheres of hot Jupiters...
  • Publication
    Detection of Na, K, and Hα absorption in the atmosphere of WASP-52b using ESPRESSO
    WASP-52b is a low-density hot Jupiter orbiting a moderately active K2V star. Previous low-resolution studies have revealed a cloudy atmosphere and found atomic...
  • Publication
    Detection of optical emission from the supernova remnant G7.7-3.7
    We present the first optical study of the supernova remnant (SNR) G7.7-3.7, with the aim of determining its evolutionary phase since it has been suggested to be...
  • Publication
    Detection of optical linear polarization in the SN 2006aj/XRF 060218 non-spherical expansion
    Aims.We have performed optical polarimetric observations of the SN 2006aj associated to the X-ray flash (XRF) of February 18, 2006, XRF 060218 that provide...