This section includes scientific and technological news from the IAC and its Observatories, as well as press releases on scientific and technological results, astronomical events, educational projects, outreach activities and institutional events.
The combination of observations made with the CARMENES spectrograph on the 3.5m telescope at Calar Alto Observatory (Almería), and the HARPS-N spectrograph on the National Galileo Telescope (TNG) at the Roque de los Muchachos Observatory (Garafía, La Palma) has enabled a team from the Instituto de Astrofísica de Canarias (IAC) and from the University of La Laguna (ULL) to reveal new details about this extrasolar planet, which has a surface temperature of around 2000 K.
This is the first publication based entirely on data obtained with EMIR, an instrument developed in the Instituto de Astrofísica de Canarias (IAC) which analyses the infrared light gathered by the Gran Telescopio Canarias (GTC) from the Roque de los Muchachos Observatory (Garafía, La Palma).
![The ultra-diffuse galaxy KKS2000]04 (NGC1052-DF2).](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/news/nt030619.jpg?h=bc8a2161&itok=5XOM-hsd "The ultra-diffuse galaxy KKS2000]04 (NGC1052-DF2).")
A group of researchers from the Instituto de Astrofísica de Canarias (IAC) has clarified one of the mysteries of 2018 in the field of extragalactic astrophysics: the supposed existence of a galaxy without dark matter.
Almost all massive stars explode as supernovae and form a black hole or neutron star. The remnant mass and the impact of the chemical yield on subsequent star formation and galactic evolution strongly depend on the internal physics of the progenitor star, which is currently not well understood. The theoretical uncertainties of stellar interiors accumulate with stellar age, which is particularly pertinent for the blue supergiant phase. Stellar oscillations represent a unique method of probing stellar interiors, yet inference for blue supergiants is hampered by a dearth of observed pulsation
By virtue of this agreement, signed today at ESA’s European Centre of Space Research and Technology (ESTEC) in Noordwijk, (The Netherlands), Tenerife will become the main European Centre of Space Communications by laser.
Between August and December 2018, during the Approach and Preliminary Survey phases of the NASA OSIRIS-REx mission, a series of images and spectra of the surface of asteroid Bennu, target of the mission, was acquired. Images acquired with MapCam, using 5 different filters provide an average albedo (fraction of the light reflected by the surface of the asteroid) of about 4.5 %, consistent with the spectral type of Bennu as determined from ground-based observations, and in agreement with the results from OSIRIS-REx disk-integrated photometry. Such a dark surface and spectral behaviour are also
