Ministerio de Economía y Competitividad Gobierno de Canarias Universidad de La Laguna CSIC Centro de Excelencia Severo Ochoa

Astrophysics Research Projects

The Local Universe

· More projects in this section

Activity Phenomena in Galaxies: a 3D Perspective from the Nucleus to the Outskirt (P301404).


Begoña García Lorenzo, José Antonio Acosta Pulido, Ismael García Bernete, Evencio Mediavilla Gradolp, Ignacio del Moral Castro, Ana Monreal Ibero, Héctor Vives Arias 

IAC Collaborators: Andrés Asensio Ramos, María Jesús Martínez González, Jesús Falcón Barroso, Julio Alberto Castro Almazán, John E. Beckman, Giuseppina Battaglia 

A. Alonso Herrero (Instituto de Física de Cantabria, IFCA); C. Tadhunter (Univ. Sheffield); C. Packham (Univ. Texas at San Antonio, UTSA); R. López (IEEC, Univ. Barcelona); L. Marina Cairós (Freelance, Germany); S.F. Sánchez (UNAM, México); S. Arribas(CAB-CSIC), M. Villar Martín (CAB-CSIC), J. Barrera Ballesteros (Johns Hopkins Krieger School of Arts and Sciences), Á. López Sánchez (Australian Astronomical Observatory), J. Piqueras (CAB-CSIC, Spain), N. Thatte (Univ. Oxford), E. López Rodríguez (SOFIA/NASA), P. Bessiere (Universidad Católica de Chile), M. Ward and H. Landt (Durham University), N. Levenson (Space Telescope), O. González Martín (CRyA, UAM).


This project has two lines of fundamental development. First, the application of 3D techniques, in particular of integral field spectroscopy, to the study of extended objects (nuclear activity in galaxies, star formation regions, etc), as well as the participation in the development of new instruments and data analysis procedures related to 3D techniques. Second, the scientific exploitation of the GTC observations of active galaxies (AGN) obtained with the infrared instruments CanariCam and EMIR and with ALMA in the sub-mm regime. The data are being used to characterize the dusty torus that obscures local AGN and to study the extended emission of active galaxies. This extended emission can be produced by the AGN itself or by star formation in the host galaxy. Moreover, this project is devoted to get observing time with the JWST as part of the GATOS consortium, as well as to exploit on-going ALMA observations of nearby AGN.


C. Ramos Almeida was invited by the new journal Nature Astronomy to write a review article on "Nuclear obscuration in AGN" together with Claudio Ricci. This review is aimed to summarize our current understanding of the material that obscures the nuclei of active galaxies by putting together results from infrared and X-ray observations. The review was published in Aug 2017 (Ramos Almeida & Ricci 2017).

I. García Bernete defended his thesis on Nov 3rd 2017. He was supervised by C. Ramos Almeida, with J. A. Acosta Pulido as tutor. Ismael has published three papers as first author, the last one (García-Bernete et al. 2017) as the result of our collaboration with Prof. Martin Ward from Durham University.

In Ramos Almeida et al. (2017) we proved the feasibility of the NIR range to better characterize QSO2 outflow properties such as radial extents, morphologies and kinematics, and more importantly, we found that these properties depend on the gas phase we look at (ionized, coronal or molecular). We have requested new observations of a sample of 50 type-2 quasars with the NIR multi-slit spectrographs EMIR on the GTC and LIRIS on the WHT. In addition, we will apply for data from the mid-IR (MIR) integral field spectrograph (IFS) MIRI on the James Webb Space Telescope (JWST), and from the Atacama Large Millimeter/submillimeter array (ALMA) in the sub-mm regime. This project aimed to study feedback in type-2 quasars is what I submitted as ERC Starting Grant proposal in October 2017 (ChANGE).

During 2017 the AGN scientific team for the instrument CanariCam/GTC (CCST) have continued publishing works based on observations obtained with this mid-infrared instrument. This includes a polarimetric study of the galaxy Mrk 231 (Lopez-Rodriguez et al. 2016) and a mid-IR study of nearby QSOs (Martínez Paredes et al. 2017).

The HARMONI preliminary design review took place in November 2017. The participation of the IAC in HARMONI comprises the pre-optics development, the electronic control of the whole instrument and the preparation of science cases.

A. Monreal-Ibero collaborated in two papers on difuse interstellar bands making use of MUSE/VLT data (Wendt et al. 2017) and UVES/VLT data (Cox et al. 2017). She also published a work on the Wolf-Rayet star population in the dwarf galaxy NGC 625 (Monreal-Ibero et al 2017).

We use our own cookies and cookies from a third party to gather statistical information to improve our services and our website. If you continue with the navigation, you are accepting the installation and use of these cookies. You can change the configuration of your browser not to accept the installation or you can obtain more information in our Cookie Policy.