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Gabriel Ignacio Torrealba Arancibia

Data Scientist

Falabella Retail

Santiago, Chile

Milky way halo substructure, satellite galaxies, ultra diffuse galaxies, ultra faint galaxies, big data and machine learning.

Astrophysics, PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2012
Astronomy, UNIVERSITY OF CAMBRIDGE. Reino Unido, 2017

Postdoc Full Time

ACADEMIA SINICA

Astronomy and astrophysics

Taipei, Taiwán

2017 - 2019

Data Scientist Full Time

Falabella Retail

Santiago, Chile

2019 - A la fecha


Bootes. IV. A new Milky Way satellite discovered in the Subaru Hyper Suprime-Cam Survey and implications for the missing satellite problem Homma, Daisuke; Chiba, Masashi; Komiyama, Yutaka; Tanaka, Masayuki; Okamoto, Sakurako; Tanaka, Mikito; Ishigaki, Miho N.; Hayashi, Kohei; Arimoto, Nobuo; Carlsten, Scott G.; Lupton, Robert H.; Strauss, Michael A.; Miyazaki, Satoshi; Torrealba, Gabriel; Wang, Shiang-Yu; Murayama, Hitoshi Article ISI PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN (2019)
Nine tiny star clusters in Gaia DR1, PS1, and DES Torrealba, G.; Belokurov, V.; Koposov, S. E. Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)
The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2 Torrealba, G.; Belokurov, V.; Koposov, S. E.; Li, T. S.; Walker, M. G.; Sanders, J. L.; Geringer-Sameth, A.; Zucker, D. B.; Kuehn, K.; Evans, N. W.; Dehnen, W. Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)
Discovery of a thin stellar stream in the SLAMS survey Jethwa P.; Torrealba G.; Navarrete C.; Carballo-Bello, J. A.; de Boer T.; Erkal D.; Koposov, S. E.; Duffau S.; Geisler D.; Catelan M.; Belokurov V. Article ISI SCOPUS (2018)
Discovery of two neighbouring satellites in the Carina constellation with MagLiteS Torrealba G.; Belokurov V.; Koposov, SE; Bechtol, K; Drlica-Wagner, A; Olsen, KAG; Vivas, AK; Yanny, B; Jethwa, P; Walker, AR; Li, TS; Allam, S; Conn, BC; Gallart C.; Gruendl, RA; James, DJ; Johnson, MD; Kuehn, K; Kuropatkin, N; Martin, NF; Martinez-Delgado, D; Nidever, DL; Noel, NED; Simon, JD; Stringfellow, GS; Tucker, DL Article ISI SCOPUS MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)
Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-faint Satellites in the Constellation Carina Li, TS; Simon, JD; Pace, AB; Torrealba G.; Kuehn, K; Drlica-Wagner, A; Bechtol, K; Vivas, AK; van der Marel, RP; Wood, M; Yanny, B; Belokurov V.; Jethwa, P; Zucker, DB; Lewis, G; Kron, R; Nidever, DL; Sanchez-Conde, MA; Ji, AP; Conn, BC; James, DJ; Martin, NF; Martinez-Delgado, D; Noel, NED Article ISI SCOPUS ASTROPHYSICAL JOURNAL (2018)
Crater 2: An Extremely Cold Dark Matter Halo Caldwell, Nelson; Walker, Matthew G.; Mateo, Mario; Olszewski, Edward W.; Koposov, Sergey; Belokurov, Vasily; Torrealba, Gabriel; Geringer-Sameth, Alex; Johnson, Christian I. Article ISI ASTROPHYSICAL JOURNAL (2017)
Gaia 1 and 2. A pair of new Galactic star clusters Koposov, Sergey E.; Belokurov, V.; Torrealba, G. Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)
The Catalina Surveys Southern periodic variable star catalogue Drake, A. J.; Djorgovski, S. G.; Catelan, M.; Graham, M. J.; Mahabal, A. A.; Larson, S.; Christensen, E.; Torrealba, G.; Beshore, E.; McNaught, R. H.; Garradd, G.; Belokurov, V.; Koposov, S. E. Article ISI SCOPUS Monthly Notices of the Royal Astronomical Society (2017)
At the survey limits: discovery of the Aquarius 2 dwarf galaxy in the VST ATLAS and the SDSS data Torrealba, G.; Koposov, S. E.; Belokurov, V.; Irwin, M.; Collins, M.; Spencer, M.; Ibata, R.; Mateo, M.; Bonaca, A.; Jethwa, P. Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)
The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater Torrealba, G.; Koposov, S. E.; Belokurov, V.; Irwin, M. Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)
BEASTS OF THE SOUTHERN WILD: DISCOVERY OF NINE ULTRA FAINT SATELLITES IN THE VICINITY OF THE MAGELLANIC CLOUDS Koposov, Sergey E.; Belokurov, Vasily; Torrealba, Gabriel; Evans, N. Wyn Article ISI ASTROPHYSICAL JOURNAL (2015)
Discovery of similar to 9000 new RR Lyrae in the southern Catalina surveys Torrealba G.; Catelan, M.; Drake, AJ; Djorgovski, SG; McNaught, RH; Belokurov V.; Koposov, S; Graham, MJ; Mahabal A.; Larson S.; Christensen E. Article ISI MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2015)
Indication of Gamma-Ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II Geringer-Sameth, Alex; Walker, Matthew G.; Koushiappas, Savvas M.; Koposov, Sergey E.; Belokurov, Vasily; Torrealba, Gabriel; Evans, N. Wyn Article ISI PHYSICAL REVIEW LETTERS (2015)
THE CATALINA SURVEYS PERIODIC VARIABLE STAR CATALOG Drake, AJ; Graham, MJ; Djorgovski, SG; Catelan, M.; Mahabal, AA; Torrealba G.; Garcia-Alvarez, D; Donalek C.; Prieto, JL; Williams, R; Larson S.; Sen, EC; Belokurov V.; Koposov, SE; Beshore E.; Boattini, A; Gibbs, A; Hill R.; Kowalski, R; Johnson, J; Shelly, F Article ISI SCOPUS ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2014)
ULTRA-SHORT PERIOD BINARIES FROM THE CATALINA SURVEYS Drake, AJ; Djorgovski, SG; Garcia-Alvarez, D; Graham, MJ; Catelan, M.; Mahabal, AA; Donalek C.; Prieto, JL; Torrealba G.; Abraham S.; Williams, R; Larson S.; Christensen E. Article ISI SCOPUS ASTROPHYSICAL JOURNAL (2014)
EVIDENCE FOR A MILKY WAY TIDAL STREAM REACHING BEYOND 100 kpc Drake, AJ; Catelan, M.; Djorgovski, SG; Torrealba G.; Graham, MJ; Mahabal A.; Prieto, JL; Donalek C.; Williams, R; Larson S.; Christensen E.; Beshore E. Article ISI SCOPUS Astrophysical Journal (2013)
PROBING THE OUTER GALACTIC HALO WITH RR LYRAE FROM THE CATALINA SURVEYS Drake, AJ; Catelan, M.; Djorgovski, SG; Torrealba G.; Graham, MJ; Belokurov V.; Koposov, SE; Mahabal A.; Prieto, JL; Donalek C.; Williams, R; Larson S.; Christensen E.; Beshore E. Article ISI SCOPUS Astrophysical Journal (2013)

Gabriel Torrealba

Data Scientist

Inteligencia Artificial

Falabella Retail

Santiago, Chile

Márcio Catelan

Full Professor

Instituto de Astrofísica

PONTIFICIA UNIVERSIDAD CATÓLICA DE CHILE

Santiago, Chile

Julio Carballo

Independent Researcher

Instituto de Alta Investigación - Universidad de Tarapacá

Arica, Chile

Douglas Geisler

Full Professor

Astronomy

UNIVERSIDAD DE CONCEPCION, DEPTO DE ASTRONOMIA

Concepcion, Chile

Gabriel Ignacio Torrealba Arancibia

Líneas de Investigación

Educación

Astrophysics, PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2012

Astronomy, UNIVERSITY OF CAMBRIDGE. Reino Unido, 2017

Experiencia Académica

Postdoc Full Time

Experiencia Profesional

Data Scientist Full Time

Article (18)

Bootes. IV. A new Milky Way satellite discovered in the Subaru Hyper Suprime-Cam Survey and implications for the missing satellite problem

Nine tiny star clusters in Gaia DR1, PS1, and DES

The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2

Discovery of a thin stellar stream in the SLAMS survey

Discovery of two neighbouring satellites in the Carina constellation with MagLiteS

Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-faint Satellites in the Constellation Carina

Crater 2: An Extremely Cold Dark Matter Halo

Gaia 1 and 2. A pair of new Galactic star clusters

The Catalina Surveys Southern periodic variable star catalogue

At the survey limits: discovery of the Aquarius 2 dwarf galaxy in the VST ATLAS and the SDSS data

The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater

BEASTS OF THE SOUTHERN WILD: DISCOVERY OF NINE ULTRA FAINT SATELLITES IN THE VICINITY OF THE MAGELLANIC CLOUDS

Discovery of similar to 9000 new RR Lyrae in the southern Catalina surveys

Indication of Gamma-Ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II

THE CATALINA SURVEYS PERIODIC VARIABLE STAR CATALOG

ULTRA-SHORT PERIOD BINARIES FROM THE CATALINA SURVEYS

EVIDENCE FOR A MILKY WAY TIDAL STREAM REACHING BEYOND 100 kpc

PROBING THE OUTER GALACTIC HALO WITH RR LYRAE FROM THE CATALINA SURVEYS

Gabriel Torrealba

Márcio Catelan

Julio Carballo

Douglas Geisler