Lines of research: Cosmology & Astroparticles (CYA, CTA)

Cosmology & Astroparticles (CYA, CTA)

Cosmology

The physics of the Early Universe and primordial gravitational waves via measurements of the Cosmic Microwave Background. In this context, our group is involved in several key projects at the frontier of this field: the ESA´s Planck mission, the QUIJOTE-CMB Experiment, the GroundBird and LSPE-STRIP experiments, and the Tenerife Microwave Spectrometer (TMS).

The nature of dark energy and its evolution via massive spectroscopic surveys of the distant Universe. IAC is involved in a series of experiments (Planck satellite, BOSS, eBOSS and MS-DESI projects, and the future ESA´s Euclid satellite) which will shed light on the detailed dynamics of the accelerated expansion and the equation of state of this intriguing energy.

Astroparticles

Study of the most violent processes in the Universe to unveil the origin and acceleration mechanisms of cosmic rays to the highest energies. The IAC group is involved in three major collaborations: the Alpha Magnetic Spectrometer (AMS) at the International Space Station and the MAGIC Telescopes and the future CTA-North Array, at the Roque de los Muchachos Observatory (La Palma).

  • Publication
    A cut-off in the TeV gamma-ray spectrum of the SNR Cassiopeia A
    It is widely believed that the bulk of the Galactic cosmic rays is accelerated in supernova remnants (SNRs). However, no observational evidence of the presence...
  • Publication
    A fast, very-high-energy γ-ray flare from BL Lacertae during a period of multi-wavelength activity in June 2015
    The mechanisms producing fast variability of the γ-ray emission in active galactic nuclei (AGNs) are under debate. The MAGIC telescopes detected a fast, very...
  • Publication
    A Forecast of the Sensitivity on the Measurement of the Optical Depth to Reionization with the GroundBIRD Experiment
    We compute the expected sensitivity on measurements of optical depth to reionization for a ground-based experiment at Teide Observatory. We simulate polarized...
  • Publication
    A High Sensitivity Fourier Transform Spectrometer for Cosmic Microwave Back-ground Observations
    The QUIJOTE Experiment was developed to study the polarization in the Cosmic Microwave Background (CMB) over the frequency range of 10-50 GHz. Its first...
  • News
    A look at the subatomic world from the IAC
    The second edition of the conference on Particle Physics, HC2NP2019, organized by the Instituto de Astrofísica de Canarias, will take place next week in Puerto...
  • Publication
    A lower bound on intergalactic magnetic fields from time variability of 1ES 0229+200 from MAGIC and Fermi/LAT observations
    Context. Extended and delayed emission around distant TeV sources induced by the effects of propagation of γ ray s through the intergalactic medium can be used...
  • Publication
    A magnified compact galaxy at redshift 9.51 with strong nebular emission lines
    Ultraviolet light from early galaxies is thought to have ionized gas in the intergalactic medium. However, there are few observational constraints on this epoch...
  • Publication
    A Mass Model for the Lensing Cluster SDSS J1004+4112: Constraints from the Third Time Delay
    We have built a new model for the lens system SDSS J1004+4112 including the recently measured time delay of the fourth quasar image. This time delay has a...
  • News
    A mechanism for removing dark matter from galaxies has been found
    The small fraction of dark matter in the galaxy NGC1052-DF4 has worried the astronomical community for several years. Now a team of researchers from the...