The journal Nature Astronomy publishes today, in its collection of reviews dedicated to dwarf galaxies, a new article written by Giuseppina Battaglia, researcher at the Instituto de Astrofísica de Canarias and the University of La Laguna, and Carlo Nipoti, researcher at the University of Bologna. The study describes the latest results on the search for dark matter in Local Group dwarf galaxies. Dark matter in dwarf galaxies is the subject of a review article published today in the journal Nature Astronomy in its living collection of articles that, from December 2021, is dedicated to the

An international research, in which the Instituto de Astrofísica de Canarias (IAC) participates, has discovered a new planetary system comprised of 4 planets orbiting the star TOI-500. This is the first system known to host an Earth analogue with a period shorter than one day and 3 additional low-mass planets whose orbital configuration can be explained via a non-violent and smooth migration scenario. The study is published in the journal Nature Astronomy. The inner planet, dubbed TOI-500b, is a so-called ultra-short period (USP) planet, as its orbital period is only 13 hours. It is regarded

A study led by the researcher of the Instituto de Astrofísica de Canarias Maitane Urrutia-Aparicio has shown the relevance of sunrise on Easter Sunday, one of the most important Christian festivities, in the orientation of Romanesque churches on the Camino de Santiago. This work exposes the close relationship between the sky and the orientation of the constructions of the Jacobean Route. It also shows that medieval societies already included temporal symbolism in the construction of their temples. The latest research results have been published in the journal Sustainability. "The main

Patricia Bessiere, a researcher at the Instituto de Astrofísica de Canarias (IAC), has led research which has used data from the KECK telescope in Hawaii to understand the impact that active galactic nuclei have on star formation in their host galaxies. The results are published today in the journal Monthly Notices of the Royal Astronomical Society Letters. One of the key questions that astronomers are trying to answer is ‘Why do galaxies look the way they do?’. Computer simulations of how galaxies formed and evolved suggest that there should be many more very large galaxies than we actually

A team of researchers from the cosmology group at the Instituto de Astrofísica de Canarias has obtained one of the most accurate measurements of the masses of clusters of galaxies, and of their relation with the amount of hot gas in these clusters. To do this they have studied the dynamics of the galaxies in 570 clusters selected from the catalogue produced by the Planck satellite (ESA). This study has been produced during four years of work, in which over 10,000 spectra have been obtained with the Telescopio Nazionale Galileo (TNG) and the Gran Telescopio Canarias (GTC) at the Roque de los