Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Trevisan, Marina"'
Autor:
Riffel, Rogerio, Dahmer-Hahn, Luis G., Vazdekis, Alexandre, Davies, Richard, Rosario, David, Almeida, Cristina Ramos, Audibert, Anelise, Martin-Navarro, Ignacio, Martins, Lucimara Pires, Rodriguez-Ardila, Alberto, Riffel, Rogemar A., Storchi-Bergmann, Thaisa, Bertoldo-Coelho, Michele, Trevisan, Marina, Hicks, Erin, Muller, Allan Schnorr, Marinho, Lais Nery, Veilleux, Sylvain
Near-infrared long-slit spectroscopy has been used to study the stellar population (SP) of the low luminosity active galactic nuclei (AGN) and matched analogues (LLAMA) sample. To perform the SP fits we have employed the X-shooter simple stellar popu
Externí odkaz:
http://arxiv.org/abs/2405.00634
Autor:
Bertoldo-Coêlho, Michele, Riffel, Rogério, Trevisan, Marina, Dametto, Natacha Zanon, Dahmer-Hahn, Luis, Coelho, Paula, Martins, Lucimara, Ruschel-Dutra, Daniel, Vazdekis, Alexandre, Rodríguez-Ardila, Alberto, Chies-Santos, Ana L., Riffel, Rogemar A., La Barbera, Francesco, Navarro, Ignacio Martín, Barroso, Jesus Falcon, Moura, Tatiana
Most of the observed galaxies cannot be resolved into individual stars and are studied through their integrated spectrum using simple stellar populations (SSPs) models, with stellar libraries being a key ingredient in building them. Spectroscopic obs
Externí odkaz:
http://arxiv.org/abs/2404.14530
Autor:
Flores-Freitas, Rodrigo, Trevisan, Marina, Mückler, Maitê, Mamon, Gary A., Schnorr-Müller, Allan, Bootz, Vitor
Compact groups of dwarf galaxies (CGDs) have been observed at low redshifts ($z<0.1$) and are direct evidence of hierarchical assembly at low masses. To understand the formation of CGDs and the galaxy assembly in the low-mass regime, we search for an
Externí odkaz:
http://arxiv.org/abs/2401.13252
Autor:
Benedetti, João P. V., Riffel, Rogério, Ricci, Tiago, Trevisan, Marina, Riffel, Rogemar A., Pastoriza, Miriani, Dahmer-Hahn, Luis G., Ruschel-Dutra, Daniel, Rodríguez-Ardila, Alberto, Hernandez-Jimenez, Jose A., Steiner, João
We use Gemini integral field unit observations to map the stellar population properties in the inner region ($\sim680\times470$ pc$^2$) of the galaxy NGC 6868. In order to understand the physical and chemical properties of the stellar content of this
Externí odkaz:
http://arxiv.org/abs/2304.11194
Autor:
Alamo-Martínez, Karla A., Chies-Santos, Ana L., Beasley, Michael A., Flores-Freitas, Rodrigo, Furlanetto, Cristina, Trevisan, Marina, Schnorr-Müller, Allan, Leaman, Ryan, Bonatto, Charles J.
We analyse the globular cluster (GC) systems of a sample of 15 massive, compact early-type galaxies (ETGs), 13 of which have already been identified as good relic galaxy candidates on the basis of their compact morphologies, old stellar populations a
Externí odkaz:
http://arxiv.org/abs/2012.04783
Autor:
Moura, Tatiana C., de Carvalho, Reinaldo R., Rembold, Sandro B., Trevisan, Marina, Ribeiro, Andre L. B., Pérez-Villegas, Angeles, La Barbera, Francesco, Stalder, Diego H., Rosa, Reinaldo R.
We present results on the study of the stellar population in Early-Type galaxies (ETGs) belonging to 151 Compact Groups (CGs). We also selected a field sample composed of 846 ETGs to investigate environmental effects on galaxy evolution. We find that
Externí odkaz:
http://arxiv.org/abs/2002.01529
Publikováno v:
MNRAS 492, 1791-1811 (2020)
Only a handful of galaxies in the local Universe appear to be very young. We estimate the fraction of very young galaxies (VYGs), defined as those with more than half their stellar masses formed within the last Gyr. We fit non-parametric star formati
Externí odkaz:
http://arxiv.org/abs/1912.06522
Publikováno v:
ApJ. 885 (2019)
Integrated spectra of Milky Way globular clusters (GCs) are reproduced by computing synthetic spectra taking into account individual element abundances. Five clusters were selected from their location in the Galactic bulge, for which integrated spect
Externí odkaz:
http://arxiv.org/abs/1911.01224
Autor:
Riffel, Rogério, Rodríguez-Ardila, Alberto, Brotherton, Michael S., Peletier, Reynier, Vazdekis, Alexandre, Riffel, Rogemar A., Martins, Lucimara Pires, Bonatto, Charles, Dametto, Natacha Zanon, Dahmen-Hahn, Luis Gabriel, Runnoe, Jessie, Pastoriza, Miriani G., Chies-Santos, Ana L., Trevisan, Marina
We analyze a set of optical-to-near-infrared long-slit nuclear spectra of 16 infrared-luminous spiral galaxies. All of the studied sources present H$_2$ emission, which reflects the star-forming nature of our sample, and they clearly display H I emis
Externí odkaz:
http://arxiv.org/abs/1904.06460
Publikováno v:
MNRAS 471, L47-51 (2017)
While the density profiles (DPs) of $\Lambda$CDM haloes obey the NFW law out to roughly one virial radius, $r_{\rm vir}$, the structure of their outer parts is still poorly understood, since the 1-halo term describing the halo itself is dominated by
Externí odkaz:
http://arxiv.org/abs/1706.02463