Astronomers observe the effect of dark matter on the evolution of the galaxies

Dark matter galaxy
Image of a galaxy showing, on the left, its stellar component, and on the right (in negative), the dark matter present in its halo. Credit: Gabriel Pérez, SMM (IAC) / The EAGLE team
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Image of the Nube galaxy through different telescopes. Credit: SDSS/GTC/IAC
Press release
Nube, the almost invisible galaxy which challenges the dark matter model

A group of astrophysicists led by Mireia Montes, a researcher at the Instituto de Astrofísica de Canarias (IAC), has discovered the largest and most diffuse galaxy recorded until now. The study has been published in the journal Astronomy & Astrophysics, and has used data taken with the Gran Telescopio Canarias (GTC) and the Green Bank Radiotelescope (GBT). Nube is an almost invisible dwarf galaxy discovered by an international research team led by the Instituto de Astrofísica de Canarias (IAC) in collaboration with the University of La Laguna (ULL) and other institutions. The name was

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Comparison between galaxies with and without dark matter
Press release
The puzzle of the galaxy with no dark matter

International research led by the Instituto de Astrofísica de Canarias (IAC) and the University of La Laguna (ULL) has found the first evidence of a massive galaxy with no dark matter. The result is a challenge to the current standard model of cosmology. The study is published in the specialized journal Astronomy and Astrophysics. A team of scientists, led by the researcher at the IAC and the University of La Laguna (ULL) Sebastién Comerón, has found that the galaxy NGC 1277 does not contain dark matter.This is the first time that a massive galaxy (it has a mass several times that of the

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Sculptor dwarf
Press release
Dwarf galaxies: key laboratories for the study of dark matter

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

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Press release
Astrophysics
Communications media
Formation & Evolution of Galaxies (FYEG)
Dark matter
Galaxy halos

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