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Matias Andres Blaña Diaz

Staff Investigador-Coordinador

Centro Espacial Nacional (CEN)

Santiago, Chile

Dynamics of barred galaxies, Andromeda, dwarf spheroidal galaxies, star clusters, Local Group. Method: N-body simulations, Made-to-measure modeling, semi-analytical, SPH and grid hydrodynamical simulations. Modeling of photometric and kinematic data.

Title of Astronomer, UNIVERSIDAD DE CONCEPCION. Chile, 2012
Master in Physics, UNIVERSIDAD DE CONCEPCION. Chile, 2013
Dr. rer. nat. in Astronomy, LUDWIG MAXIMILIANS-UNIVERSITAT MUNCHEN. Alemania, 2018
Licenciado en Ciencias Fisicas, UNIVERSIDAD DE CONCEPCION. Chile, 2009

PhD student Full Time

MAX-PLANCK INSTITUT FUR EXTRATERRESTRISCHE PHYSIK

Munich, Alemania

2013 - 2018
POSTDOCTORAL RESEARCHER Full Time

MAX-PLANCK INSTITUT FUR EXTRATERRESTRISCHE PHYSIK

MUNICH, Alemania

2018 - A la fecha
Docente Part Time

UNIVERSIDAD DE CONCEPCION

Vicerrectoría de la Universidad de Concepción

Concepción, Chile

2012 - 2012
Investigador Postdoctoral Fondecyt Full Time

PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE

Facultad de Física

Santiago, Chile

2021 - 2024
Investigador Full Time

UNIVERSIDAD DE TARAPACA

Instituto de Alta Investigación

Santiago, Chile

2024 - A la fecha

Postdoctoral researcher Full Time

Max Planck for extraterrestrial Physics

Garching bei München, Alemania

2018 - 2021

Currently I am co-supervisor of a doctoral student at the Institute of Astrophysics at the Pontificia Universidad Católica de Chile. The project consist on developing orbital models for stellar streams and satellite galaxies of the barred galaxy Malin 1 which is a Giant Low Surface Brightness galaxy (GLSB), to understand the evolution of the environment of GLSB galaxies.
I also supervised an undergraduate student for a summer project at the Astronomy Department at the Universidad de Chile. The project consisted on modelling the orbits of star clusters located in the stellar halo of the Milky Way and explore tidal interactions.


Differences in baryonic and dark matter scaling relations of galaxy clusters: A comparison between IllustrisTNG simulations and observations Miller D.; Pallero, D.; Tissera P.B.; Blaña, M Article ISI Astronomy and Astrophysics (2025)
Diving into dangerous tides: The impact of galaxy cluster tidal environments on satellite galaxy mass densities Blaña, M; Puzia T.H.; Ordenes-Briceño, Y; Tissera P.B.; Mora M.D.; Pallero, D.; Johnston E.; Miller B.; Ziliotto, T; Eigenthaler P.; et al. Article ISI Astronomy and Astrophysics (2025)
Searching for new hypervelocity stars with Gaia DR3 and VLT/FORS2 spectroscopy Carballo-Bello J.A.; Ramos, P; Corral-Santana J.M.; Navarrete, C.; Antoja T.; Gran, F.; Blaña, M; Mora M.D. Article ISI Astronomy and Astrophysics (2025)
The CHIMERA Survey: The first CO detection in Leo T, the lowest mass known galaxy still hosting cold molecular gas Villanueva, Vicente; Blana, Matias; Bolatto, Alberto D.; Rubio, Monica; Tarantino, Elizabeth; Herrera-Camus, Rodrigo; Burkert, Andreas; Vaz, Daniel; Read, Justin I.; Galaz, Gaspar; et al. Article ISI Astronomy and Astrophysics (2025)
A MUSE View of the Core of the Giant Low Surface Brightness Galaxy Malin 1 Galaz, Gaspar; Eigenthaler, Paul; Junais; Puzia, Thomas Article ASTRONOMY AND ASTROPHYSICS (2024)
A MUSE view of the core of the giant low-surface-brightness galaxy Malin 1 Johnston E.J.; Galaz G.; Blaña, M; Amram P.; Boissier S.; Eigenthaler P.; Epinat B.; Junais; Ordenes-Briceño, Y; Puzia T.; et al. Article ISI (2024)
Bar-driven Gas Dynamics of M31 Feng, Zi-Xuan; Li, Hui; Jing, Yingjie Article ISI (2024)
First Detection of Molecular Gas in the Giant Low Surface Brightness Galaxy Malin 1 Galaz, Gaspar; Gonzalez-Lopez, Jorge; Guzman, Viviana; Messias, Hugo; Junais, Samuel; Boissier, Samuel; Epinat, Benoit; Weilbacher, Peter M.; Puzia, Thomas; Johnston, Evelyn J.; et al. Article ISI (2024)
The Milky Way satellite galaxy Leo T: A perturbed cored dwarf Fellhauer, Michael; Behrendt, Manuel Article ISI (2024)
The Accretion Mode in Sub-Eddington Supermassive Black Holes: Getting into the Central Parsecs of Andromeda Alig C.; Frischman, M.; Metzl, C.; Zier, O. Article ISI SCOPUS Astrophysical Journal (2023)
Large-scale Hydrodynamical Shocks as the Smoking-gun Evidence for a Bar in M31 Article ISI SCOPUS ASTROPHYSICAL JOURNAL (2022)
The Giant Low Surface Brightness Galaxy Malin 1: New Constraints for Its Molecular Gas Mass from GBT/ARGUS Observations Galaz, Gaspar Article ISI SCOPUS ASTROPHYSICAL JOURNAL LETTERS (2022)
Unravelling stellar populations in the Andromeda Galaxy Gajda, Grzegorz; Zhu, Ling Article ISI ASTRONOMY & ASTROPHYSICS (2021)
Dwarfs in the Milky Way halo outer rim: first infall or backsplash satellites? Fellhauer, Michael Article ISI SCOPUS MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)
The survey of planetary nebulae in Andromeda (M 31) II. Age-velocity dispersion relation in the disc from planetary nebulae Caldwell N.; BlaÃ±a M.; Pulsoni C.; Freeman, K. C. Article ISI SCOPUS ASTRONOMY & ASTROPHYSICS (2019)
Evidence for non-axisymmetry in M31 from wide-field kinematics of stars and gas Article ISI ASTRONOMY & ASTROPHYSICS (2018)
Sculpting Andromeda - made-to-measure models for M31's bar and composite bulge: dynamics, stellar and dark matter mass Diaz, Matias Blana; Gerhard, Ortwin; Wegg, Christopher; Portail, Matthieu; Opitsch, Michael; Saglia, Roberto; Fabricius, Maximilian Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)
Stellar populations of the central region of M 31 Opitsch, M.; Fabricius, M. H. Article ISI ASTRONOMY & ASTROPHYSICS (2018)
Andromeda chained to the box - dynamical models for M31: bulge and bar Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)
How fast is mass segregation happening in hierarchically formed embedded star clusters? Article ISI SCOPUS Monthly Notices of the Royal Astronomical Society (2017)
Could Segue 1 be a destroyed star cluster? - a dynamical perspective Farias, J. P.; Choque, N. Article ISI SCOPUS MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)
The difficult early stages of embedded star clusters and the importance of the pre-gas expulsion virial ratio Farias J.P.; Smith R.; Fellhauer M.; Goodwin, S.; Candlish G.N.; Blaña, M; Dominguez, R. Article ISI SCOPUS Monthly Notices of the Royal Astronomical Society (2015)
Life and death of a hero - lessons learned from modelling the dwarf spheroidal hercules: An incorrect orbit? Blaña, M; Fellhauer M.; Smith R.; Candlish, G N; Cohen, R. Article ISI SCOPUS Monthly Notices of the Royal Astronomical Society (2014)
A possible formation scenario for dwarf spheroidal galaxies - II. A parameter study Assmann P.; Fellhauer M.; Wilkinson, MI; Smith R.; Blaña, M Article ISI SCOPUS Monthly Notices of the Royal Astronomical Society (2013)
Ursa Major II - reproducing the observed properties through tidal disruption Smith R.; Fellhauer M.; Candlish G.N.; Wojtak R.; Farias J.P.; Blaña, M Article ISI SCOPUS Monthly Notices of the Royal Astronomical Society (2013)
Leo IV and V - A possible dwarf galaxy pair? Blaña, M; Fellhauer M.; Smith R. Article ISI SCOPUS Astronomy and Astrophysics (2012)


DWARF GALAXY MODELS: LEO T Blaña Diaz, Matias Andres; Fellhauer, Michael Alois Dominik; Alig C. Proyecto (2018)
Dynamics of the bar and the bulge of the Andromeda galaxy (M31) Proyecto (2013)
THE FORMATION OF STAR CLUSTERS Fellhauer, Michael Alois Dominik; Smith, Rory Proyecto (2013)
MAGISTER EN CIENCIAS FISICAS Fellhauer, Michael Alois Dominik; Smith, Rory Proyecto (2012)
THE DWARF GALAXIES AND TIDAL STREAMS OF THE MILKY WAY Fellhauer, Michael Alois Dominik; Smith, Rory Proyecto (2011)