LASEX

Who we are


Extragalactic Astrophysics is one of the most active fields of contemporary Astrophysics, comprising more than 40% of the articles published in the area. Large international projects (e.g., ALMA, James Webb Space Telescope, ELTs) have among their main objectives to understand the formation and evolution of galaxies throughout the history of the universe, while large surveys (e.g., DES, SDSS) seek to understand the structure of the universe by observing millions of galaxies in the sky.

 

At the Valongo Observatory we created in 2013 the extragalactic LASEX / OV research group, officially registered in the Directory of CNPq Research Groups, with the aim of formalizing a community of researchers (students, postdoctoral students and professors) aiming for joint growth. Scientifically, the focus of our group is mainly observational with some of us working a bit on modelling and simulations. We work with a great diversity of techniques and wavelengths, comprising almost the entire range of the electromagnetic spectrum from the radio, passing through microwaves, infrared and optical, reaching up to ultraviolet and X-ray

Our research projects comprise a wide range of topics in Extragalactic Astrophysics and researchers in our group lead projects in some of the most competitive observatories in the world (eg, Keck in Hawaii, VLT / ESO and ALMA in Chile ). Explore this page to know more about our group and get in touch for opportunities to collaborate!

 
LASEX’s Hall of fame:
 

Karín Menéndez-Delmestre

Professor
kmd[at]astro[dot]ufrj[dot]br

Research area: multi-band observational astrophysical studies of galaxies: dusty starbursts near and far, coexistence of star-formation and AGN activity, proto-clusters and the establishment of the galaxy-environment relation, stellar structures in nearby galaxies.

Personal Page

Thiago Signorini Gonçalves

Professor
tsg[at]astro[dot]ufrj[dot]br
Research area: galaxy formation and evolution; observational extragalactic astrophysics; radio astronomy; star formation.
Personal Page

Paulo Afranio Augusto Lopes

Professor
plopes[at]astro[dot]ufrj[dot]br
Research area: observational cosmology, galaxy cluster selection in large surveys, photometric redshifts.

Marco Grossi

Visiting Professor
grossi[at]astro[dot]ufrj[dot]br
Research area: galaxy properties in rich nearby clusters.

Arianna Cortesi

PostDoc
aricorte[at]astro[dot]ufrj[dot]br
Research area: formation of lenticular galaxies, the role of environment in the fomation of galaxies, extragalactic globular clusters and planetary nebulae

Gustavo Dopcke

PostDoc
dopcke[at]astro[dot]ufrj[dot]br
Research area: Star Formation, Interstellar Medium, Hydrodynamic Simulations

Jorge Marcelino dos Santos Júnior

PhD Student
jorgeba[at]astro[dot]ufrj[dot]br
Advisor: Thiago Signorini Gonçalves
Research area:

Luidhy Santana da Silva

PhD Student
luidhy[at]astro[dot]ufrj[dot]br
Advisor: Thiago Signorini Gonçalves
Research area: Research focus in the areas of Astronomy and Astrophysics with emphasis on evolution of galaxies with high star formation activity. Specially the correlation between galaxy environments and properties
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Camila de Sá Freitas

Master Student
camila14[at]astro[dot]ufrj[dot]br
Advisor: Thiago Signorini Gonçalves
Research area: Evolution of galaxies of the green valley according to morphology. Transition region: quenching or bursting?

Carolyne Santos de Oliveira

Master Student
carolyne13[at]astro[dot]ufrj[dot]br
Advisor: Karín Menéndez-Delmestre
Research:

Yanna Carolina Martins da Silva

Master Student
yanna11[at]astro[dot]ufrj[dot]br
Advisor: Karín Menéndez-Delmestre
Research area: Extragalactic Infrared Emission, (Ultra)Luminous Infrared Galáxies, Polycyclic Aromatic Hydrocarbons (PAHs), Stellar Formation x Active Galactic Nuclei (AGNs)

Douglas Brambila dos Santos

PhD Student
douglas13[at]astro[dot]ufrj[dot]br
Advisor: Paulo Afranio Augusto Lopes
Research area:

João Gabriel Furtado Macedo

Undergraduate Student
joao15[at]astro[dot]ufrj[dot]br
Advisor: Thiago Signorini Gonçalves
Research area: dark matter and rotation curves of lyman-break analogs and its z~2,2 simulations.

Rayssa Guimarães

Undergraduate Student
rayssa17[at]astro[dot]ufrj[dot]br
Advisor: Karín Menéndez-Delmestre
Research area: dark matter and rotation curves of lyman-break analogs and its z~2,2 simulations./td>

Natália Nogueira Maia

Undergraduate Student
natalia12[at]astro[dot]ufrj[dot]br
Advisor: Thiago Signorini Gonçalves
Research area:

Yasmin Cavalcante Ferreira Coelho

Undergraduate Student
yasmin14[at]astro[dot]ufrj[dot]br
Advisor: Karín Menéndez-Delmestre
Research area: Distribution of stellar mass in nearby galaxies – targeting a stellar mass census of structures typically present in galaxies (i.e., disks, bulges, bars, cores).

 
Former members:
 

Ana Carolina Costa Lourenço

Former Student (Master Degree)
alourenco[at]astro[dot]ufrj[dot]br
Research area:
LASEX contact: Paulo Afranio Augusto Lopes

Aldée Charbonnier

Former PostDoc
charbonnier[at]astro[dot]ufrj[dot]br
Research area: compact passive galaxies, detailed morphological analysis of galaxies, CS82
LASEX Contact: Karín Menéndez-Delmestre

Beatriz Henriques Ferreira Ramos

Former PostDoc
birinh[at]gmail[dot]com
Áreas de atuação: peculiar early-type galaxies, 2D galaxy decomposition, stellar populations in galaxies.
LASEX Contact: Karín Menéndez-Delmestre

Emmanuel Galliano

Former PostDoc
Research area:
LASEX Contact: Karín Menéndez-Delmestre

João Paulo Nogueira Cavalcante

Former student (PhD)
jpncavalcante[at]on[dot]br
Research area: evolution of star formation in galaxies.
LASEX Contact: Karín Menéndez-Delmestre

Karolina Garcia

Former student (Master)
kgarcia[at]astro[dot]ufrj[dot]br
Research area: Supernovae peculiar motions for Cosmology.

Laurie Anne Riguccini

Former PostDoc
riguccini[at]astro[dot]ufrj[dot]br
Research area: infrared view of galaxies with Spitzer/Herschel, early-type galaxies, transitioning cluster galaxies, AGNs, coexistence of Star Formation and Supermassive Black Hole Growth, COSMOS collaboration
LASEX Contact: Paulo Lopes, Karín Menéndez-Delmestre

Raquel Santiago Nascimento

Former student (PhD)
rnascimento[at]lna[dot]br
Research area: galaxy groups, dynamics of galaxies in large scale structures.
LASEX Contact: Paulo Lopes

René Alberto Ortega Minakata

Former PostDoc
ralberto[at]astro[dot]unam[dot]mx
Research area: Stellar populations in galaxies, integral field unit view of ringed galaxies, CALIFA survey.
LASEX Contact: Thiago Signorini Gonçalves, Karín Menéndez-Delmestre

Stephane Vaz Werner de Almeida

Former student (graduation)
Advisor: Paulo Afranio Augusto Lopes
Research area: large scale structure, galaxy clusters
LASEX Contact: Paulo Lopes
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