Mirror-slicer Array for Astronomical Transients. A new Integral Field Spectroscopy mode for OSIRIS at GTC

MAAT (Mirror-slicer Array for Astronomical Transients) is proposed as a new mirror-slicer optical system that will allow the OSIRIS spectrograph a

NGC 7469 as seen by MEGARA: new results from high-resolution IFU spectroscopy

In this talk I will present highlights from our recent work  about the analysis of high-resolution (R ~ 20 000) GTC/MEGARA integral-field unit spectroscopic observations, obtained during the commissioning run, in the inner region (12.5arcsec×11.3arcsec) of the active galaxy NGC7469, at spatial scales of 0.62 arcsec. We explore the kinematics, dynamics, ionisation mechanisms and oxygen abundances of the ionised gas, by modelling the Hα-[NII] emission lines at high signal-to-noise with multiple Gaussian components (Cazzoli et al. 2019).
 

The Arp299 puzzle. Black holes that devour stars

In January 2005, a bright flash was detected in the nucleus of the galaxy in the process of fusion Arp 299-B, which was considered a supernova explosion. However, ten years of observations at different wavelengths have allowed us to witness how the luminous region was lengthening and expanding, and to conclude that it is a jet of material expelled by the galaxy's central super-massive black hole after tearing a star.

The Hubble-Lemaître constant: is it really a constant?

Following an open debate, the International Astronomical Union recently recommended that the rate of expansion of the universe, traditionally referred to as the "Hubble Constant", should henceforth be referred to as the "Hubble-Lemaître Constant". In this session we will see why the change of designation was necessary to do justice to the work of Georges Lemaître, one of the fathers of relativistic cosmology, but also the reasons that point out that in reality it is not a constant.

Climate change in Mars

Visit of the Delegation of Environment of the Junta de Andalucía at Sierra Nevada Observatory

On Thursday September 15 the Delegate of Environment of the Junta de Andalucía, Inmaculada Oria, visited the Sierra Nevada Observatory (OSN). The visit is part of a collaboration agreement between the Institute of Astrophysics of Andalusia (IAA) and the Provincial Delegation which began following the First Day of Sky Quality held last June.

The visit was also attended by the Mayor of Monachil, Jose Morales, Councilman Environment of the City of Monachil, Franciso Alvarez, and the Director of the Sierra Nevada National Park, Javier Sanchez.

The IAA hosts a conference on the quality of the sky

Tomorrow will be held at the Institute of Astrophysics of Andalusia (IAA-CSIC), a technical conference which seeks to establish a strategy for joint action among the various regional actors involved in the protection of the sky.

Conferences and events calendar

Check out the list of events and conferences.

• Seminars
• Scientitifc meetings
• Lucas Lara outreach conferences
• Manuel Félix Herrera training sessions