Stellar Systems Group Members

Stellar Systems Group Members


Emilio J. Alfaro Navarro

Alfaro Navarro, Emilio Javier

Emilio J. Alfaro is currently working on the connection between the spatial and kinematic structure of different  stellar systems (clusters, stellar complexes, spiral arm segments, etc)  and the processes of star formation driving that patterns.

emilio [at]

Delgado Sánchez, Antonio Jesús

My research is focused on the properties of Pre-main Sequence (PMS) stars, detected as members of young open clusters in the Milky Way. Photometry and spectroscopy in both the optical and near infrared ranges, are used to classify the stars in the fields of young clusters, to select members, and to check the performances of theoretical PMS evolutionary models.

delgado [at]

Antonio Jesús Delgado Sánchez

Jesús Maíz Apellániz

Maíz Apellániz, Jesús

The research interests of Jesús Maíz Apellániz (BSc: Caltech, 1989; MA: U.C. Berkeley, 1991; PhD: Universidad Complutense, 1999) revolve around the study of massive stars and massive young stellar clusters and their influence in the surrounding interstellar medium. I have worked on the spectral classification and cataloguing of massive stars; the analysis of the structural properties of the clusters; the interplay between the ionizing radiation, stellar winds, and SN explosions with the surrounding interstellar medium in its different phases (molecular, atomic, warm ionized, and coronal gas); and the distribution and observational effects induced by dust in the proximity of the clusters. I have also worked on the spatial distribution of massive stars in the solar neighborhood, the history of the Local Bubble and its influence on Earth, the identification of supernova progenitors, and the measurement of distances to nearby galaxies, among other topics. On the technical side, I have worked in astronomical software, the calibration of existing detectors and photometric systems, and the development of new instruments.

jmaiz [at]

Schödel, Rainer

My main field of research is the center of the Milky Way. Because of its nearness, the Galactic center is the only nucleus of a galaxy that we can resolve on scales of milliparsecs. Therefore it serves us as a template to understand the physical processes that occur at the nuclei of typical spiral galaxies with an extremely underluminous central black hole. I use near- and mid-infrared observations at telescopes of the 8-10m class, exploiting high angular resolution techniques (adaptive optics, speckle imaging, sparse aperture masking, infrared interferometry). Particularly, I aim at a better understanding of the structure and kinematics of the dense stellar cluster around the central black hole, Sagittarius A*, and the properties of its distinct stellar populations, especially the young and massive stars.

rainer [at]

Rainer Schödel

María Teresa Costado Dios

Costado Dios, María Teresa

After having worked in other areas of research, now my main field is the photometric study (optic and near-infrared) of the Northern Hemisphere stellar clusters containing massive stars to determine the main physical parameters as well as whether there are internal structures in them. I also do the analysis of active-forming regions to quantify the influence of the local environment on the formation of new stellar populations.

mteresa [at]

Sampedro Hernández, Laura María

I am currently doing my PhD thesis, that it is divided into two lines of research. The first one, supervised by  Dr. Emilio Alfaro, is based on a new methodology to  estimate the membership probabilities using variables such as positions, proper motions, radial velocities (variables that are more concentrated for the cluster members than for the field stars), aiming at determining the possible members of a stellar cluster.

The second line of my thesis, supervised by Dr. Jorge Peñarrubia (Edinburgh University), consists in the detection of signatures of accretion in dwarf spheroidal galaxies (dSph galaxies).

sampedro [at]

Laura María Sampedro


Alfredo Sota Ballano

Sota Ballano, Alfredo

Main fields of research:

Masive stars spectroscopic catalogs. Precise determination of the IMF for massive stars. Measurement of radial velocities for Galactic kinematical studies. Detection of unknown massive binaries.

sota [at]

Gallego Calvente, A. Teresa

My main research interests are Communication, Didactic and Educational aspects of Astronomy and Molecular Spectroscopy of the Interstellar Medium in galactic or extragalactic regions of star formation.

gallego [at]

A. Teresa Gallego Calvente

Jesús Cabrera Caño

Cabrera Caño, Jesús

Researching in colaboration with the Department of Radioastronomy and Galactic Structure from Andalusian Astrophysics Institut, he is specialist in development and application of statistical techniques on data analysis.
Currently he studies structural and kinematic aspects of the Young Galactic Disk. In particular about the structure called "Gould Belt" operating valuate results from astrometric space mission Hipparcos.

jcc-famn [at]

Djupvik, Anlaug Amanda

Since May 2000 I am working at the Nordic Optical Telescope (NOT) in La Palma, Canary Islands, Spain.
My main field of research is Star Formation and the origin of the Initial Mass Function.

amanda [at]

Anlaug Amanda Djupvik

Koraljka Muzic

Muzic, Koraljka

Currently I am studying brown dwarfs and planetary-mass objects in young star forming regions. Methods include extremely deep optical and infrared photometry, combined with spectroscopy of selected candidates. We wish to improve our understanding of the physical processes that form sub-stellar objects, determine the shape of the initial-mass function at the low-mass end, and possibly observe differences caused by formation in a particular environment.
I am also interested in studies of the Milky Way's center, in particular star formation, and interaction of winds and outflows with the ISM in the central parsec.

muzic [at]

Walborn, Nolan R.

Research Specializations:

walborn [at]

Nolan Walborn

M. Teresa Aparicio Villegas

Aparicio Villegas, Teresa

I am working on the calibration, characterization and analysis of the ALHAMBRA photometric system. The first calibration of the system has been done from the synthetic photometry of a set of spectrophotometric standard stars and the relation with other already known photometric systems . The analysis  of the ALHAMBRA photometry  is based on libraries of stellar synthetic spectra, having as objective looking for color subsets that better determine the intrinsic physical variables, as well as classifying stellar objects of late type, such as M and L stars, and separate them from quasars and galactic nuclei with high redshift.

terenz [at]

Sánchez Gil, María del Carmen

My work is focused in the kinematic study of near spiral galaxies using long slit spectroscopy , and in the stellar formation using optical photometry (Halpha-TTF), UV (GALEX) and IR (SPITZER).

mcarmen.sanchez [at]

María del Carmen Sánchez Gil

David Galadí Enríquez

Galadí Enríquez, David

My main fields of research are astrometry and photometry of stellar open clusters.

dgaladi [at]

Román Zúñiga, Carlos G.

My research interests mostly involve the study of the primordial and early phases of star formation. I am particularly interested in the initial conditions that lead to the formation of clusters of stars in giant molecular clouds. I also study the structure of these clouds based on the distribution of dust. I use mostly infrared detectors to image the regions of starless clouds and regions with embedded star clusters.

croman [at]

Carlos G. Román Zúñiga

Belén Vicente Martínez

Vicente Martínez, Belén

Fields of research: 

bvicente [at]

Sánchez Doreste, Néstor M.

My main field of research (but not the only one!) is the Interstellar Medium (ISM). I am trying to characterize in detail the structure of molecular clouds and star forming regions in order to understand the relationship between the properties of the ISM and the properties of new-born stars.

nestorsa [at]

Néstor M. Sánchez Doreste

Joao Lin Yun

Lin Yun, Joao
yun [at]

Alves, Joao
jalves [at]


Joao Alves


Miguel Penadés Ordaz

Penadés Ordaz, Miguel

Main scientific field of research: O stars in our galaxy.
Spectra and also photometry.
Total number, IMF, distribution, characterization and classification.
Relation with ISM, galactic kinematics, etc.
DIBs in O stars spectra.

Other astrophysical interests: Archeoastronomy, scientific software programming, observational tools and data reduction, etc.

migpeor [at]