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Article 2018-01

Autor: Tissera, P.B. Machado, R.E.G. Carollo, D. Minniti, D. Beers, T.C. Zoccali, M. Meza, A.

We study the properties of the central spheroids located within 10 kpc of the centre of mass of MilkyWay mass-sized galaxies simulated in a cosmological context. The simulated central regions are dominated by stars older than 10 Gyr, mostly formed in situ, with a contribution of ~30 per cent from...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/8570

Repositorio Universidad Andrés Bello
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Tissera, P.B. ,  Machado, R.E.G. ,  Carollo, D. ,  Minniti, D. ,  Beers, T.C. ,  Zoccali, M. ,  Meza, A. ,  [The central spheroids of Milky Way mass-sized galaxies] ,  The central spheroids of Milky Way mass-sized galaxies
Article 2018-03

Autor: Hansen, C.J. El-Souri, M. Monaco, L. Villanova, S. Bonifacio, P. Caffau, E. Sbordone, L.

Sagittarius (Sgr) is a massive disrupted dwarf spheroidal galaxy in the Milky Way halo that has undergone several stripping events. Previous chemical studies were restricted mainly to a few, metal-rich ([Fe/H] ) stars that suggested a top-light initial mass function (IMF). Here we present the fir...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/7050

Repositorio Universidad Andrés Bello
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Hansen, C.J. ,  El-Souri, M. ,  Monaco, L. ,  Villanova, S. ,  Bonifacio, P. ,  Caffau, E. ,  Sbordone, L. ,  [Ages and Heavy Element Abundances from Very Metal-poor Stars in the Sagittarius Dwarf Galaxy] ,  Ages and Heavy Element Abundances from Very Metal-poor Stars in the Sagittarius Dwarf Galaxy
Article 2016-10

Autor: Bignone, LA Tissera, PB Sillero, E Pedrosa, SE Pellizza, LJ Lambas, DG

We study non-parametric morphologies of mergers events in a cosmological context, using the Illustris project. We produce mock g-band images comparable to observational surveys from the publicly available Illustris simulation idealized mock images at z = 0. We then measure non-parametric indicato...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/3747

Repositorio Universidad Andrés Bello
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Bignone, LA ,  Tissera, PB ,  Sillero, E ,  Pedrosa, SE ,  Pellizza, LJ ,  Lambas, DG ,  [Non-parametric morphologies of mergers in the Illustris simulation] ,  Non-parametric morphologies of mergers in the Illustris simulation
Article 2018-08

Autor: Renzini, A. Gennaro, M. Zoccali, M. Brown, T.M. Anderson, J. Minniti, D. Sahu, K.C. Valenti, E. Vandenberg, D.A.

The Hubble Space Telescope/WFC3 multiband photometry spanning from the UV to the near-IR of four fields in the Galactic bulge, together with that for six template globular and open clusters, are used to photometrically tag the metallicity [Fe/H] of stars in these fields after proper-motion reject...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/10877

Repositorio Universidad Andrés Bello
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Renzini, A. ,  Gennaro, M. ,  Zoccali, M. ,  Brown, T.M. ,  Anderson, J. ,  Minniti, D. ,  Sahu, K.C. ,  Valenti, E. ,  Vandenberg, D.A. ,  [The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity] ,  The WFC3 Galactic Bulge Treasury Program: Relative Ages of Bulge Stars of High and Low Metallicity
Article 2017-02

Autor: Nantais, J.B. Muzzin, A. van der Burg, R.F.J. Wilson, G. Lidman, C. Foltz, R. DeGroot, A. Noble, A. Cooper, M.C. Demarco, R.

We analyse the evolution of environmental quenching efficiency, the fraction of quenched cluster galaxies which would be star forming if they were in the field, as a function of redshift in 14 spectroscopically confirmed galaxy clusters with 0.87 < z < 1.63 from the Spitzer Adaptation of the Red-...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/4725

Repositorio Universidad Andrés Bello
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Nantais, J.B. ,  Muzzin, A. ,  van der Burg, R.F.J. ,  Wilson, G. ,  Lidman, C. ,  Foltz, R. ,  DeGroot, A. ,  Noble, A. ,  Cooper, M.C. ,  Demarco, R. ,  [Evidence for strong evolution in galaxy environmental quenching efficiency between z = 1.6 and z = 0.9] ,  Evidence for strong evolution in galaxy environmental quenching efficiency between z = 1.6 and z = 0.9
Article 2017-07

Autor: Delahaye, A.G. Webb, T.M.A. Nantais, J. Degroot, A. Wilson, G. Muzzin, A. Yee, H.K.C. Foltz, R. Noble, A.G. Demarco, R. Tudorica, A. Cooper, M.C. Lidman, C. Perlmutter, S. Hayden, B. Boone, K. Surace, J.

We compile a sample of spectroscopically and photometrically selected cluster galaxies from four high-redshift galaxy clusters (1.59 < z < 1.71) from the Spitzer Adaptation of the Red-Sequence Cluster Survey (SpARCS), and a comparison field sample selected from the UKIDSS Deep Survey. Using near-...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/5033

Repositorio Universidad Andrés Bello
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Delahaye, A.G. ,  Webb, T.M.A. ,  Nantais, J. ,  Degroot, A. ,  Wilson, G. ,  Muzzin, A. ,  Yee, H.K.C. ,  Foltz, R. ,  Noble, A.G. ,  Demarco, R. ,  Tudorica, A. ,  Cooper, M.C. ,  Lidman, C. ,  Perlmutter, S. ,  Hayden, B. ,  Boone, K. ,  Surace, J. ,  [Galaxy Merger Candidates in High-redshift Cluster Environments] ,  Galaxy Merger Candidates in High-redshift Cluster Environments
Article 2018-02

Autor: Pan, H.-A. Lin, L. Hsieh, B.-C. Sánchez, S.F. Ibarra-Medel, H. Boquien, M. Lacerna, I. Argudo-Fernández, M. Bizyaev, D. Cano-Díaz, M. Drory, N. Gao, Y. Masters, K. Pan, K. Tabor, M. Tissera, P. Xiao, T.

The galaxy integrated Hα star formation rate-stellar mass relation, or SFR(global)-M ∗(global) relation, is crucial for understanding star formation history and evolution of galaxies. However, many studies have dealt with SFR using unresolved measurements, which makes it difficult to separate out...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/6760

Repositorio Universidad Andrés Bello
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Pan, H.-A. ,  Lin, L. ,  Hsieh, B.-C. ,  Sánchez, S.F. ,  Ibarra-Medel, H. ,  Boquien, M. ,  Lacerna, I. ,  Argudo-Fernández, M. ,  Bizyaev, D. ,  Cano-Díaz, M. ,  Drory, N. ,  Gao, Y. ,  Masters, K. ,  Pan, K. ,  Tabor, M. ,  Tissera, P. ,  Xiao, T. ,  [SDSS IV MaNGA: Dependence of Global and Spatially Resolved SFR-M ∗ Relations on Galaxy Properties] ,  SDSS IV MaNGA: Dependence of Global and Spatially Resolved SFR-M ∗ Relations on Galaxy Properties
Article 2017-06

Autor: Noble, A.G. McDonald, M. Muzzin, A. Nantais, J. Rudnick, G. Van Kampen, E. Webb, T.M.A. Wilson, G. Yee, H.K.C. Boone, K. Cooper, M.C. DeGroot, A. Delahaye, A. Demarco, R. Foltz, R. Hayden, B. Lidman, C. Manilla-Robles, A. Perlmutter, S.

We present ALMA CO (2-1) detections in 11 gas-rich cluster galaxies at z ∼ 1.6, constituting the largest sample of molecular gas measurements in z > 1.5 clusters to date. The observations span three galaxy clusters, derived from the Spitzer Adaptation of the Red-sequence Cluster Survey. We augmen...

Enlace original: http://repositorio.unab.cl/xmlui/handle/ria/4744

Repositorio Universidad Andrés Bello
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Noble, A.G. ,  McDonald, M. ,  Muzzin, A. ,  Nantais, J. ,  Rudnick, G. ,  Van Kampen, E. ,  Webb, T.M.A. ,  Wilson, G. ,  Yee, H.K.C. ,  Boone, K. ,  Cooper, M.C. ,  DeGroot, A. ,  Delahaye, A. ,  Demarco, R. ,  Foltz, R. ,  Hayden, B. ,  Lidman, C. ,  Manilla-Robles, A. ,  Perlmutter, S. ,  [ALMA Observations of Gas-rich Galaxies in z ~ 1.6 Galaxy Clusters: Evidence for Higher Gas Fractions in High-density Environments] ,  ALMA Observations of Gas-rich Galaxies in z ~ 1.6 Galaxy Clusters: Evidence for Higher Gas Fractions in High-density Environments

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