Zobrazeno 1 - 10
of 420
pro vyhledávání: '"Coelho, Paula A."'
Autor:
Huang, Yang, Beers, Timothy C., Xiao, Kai, Yuan, Haibo, Lee, Young Sun, Gu, Hongrui, Hong, Jihye, Liu, Jifeng, Fan, Zhou, Coelho, Paula, Cruz, Patricia, Galindo-Guil, F. J., Daflon, Simone, Jiménez-Esteban, Fran, Cenarro, Javier, Cristóbal-Hornillos, David, Hernández-Monteagudo, Carlos, López-Sanjuan, Carlos, Marín-Franch, Antonio, Moles, Mariano, Varela, Jesús, Ramírez, Héctor Vázquez, Alcaniz, Jailson, Dupke, Renato, Ederoclite, Alessandro, Sodré Jr., Laerte, Angulo, Raul E.
We present a catalog of stellar parameters (effective temperature $T_{\rm eff}$, surface gravity $\log g$, age, and metallicity [Fe/H]) and elemental-abundance ratios ([C/Fe], [Mg/Fe], and [$\alpha$/Fe]) for some five million stars (4.5 million dwarf
Externí odkaz:
http://arxiv.org/abs/2408.02171
Autor:
Herpich, Fabio R., Almeida-Fernandes, Felipe, Schwarz, Gustavo B. Oliveira, Lima, Erik V. R., Nakazono, Lilianne, Alonso-García, Javier, Fonseca-Faria, Marcos A., Sartori, Marilia J., Bolutavicius, Guilherme F., de Souza, Gabriel Fabiano, Hartmann, Eduardo A., Li, Liana, Espinosa, Luna, Kanaan, Antonio, Schoenell, William, Werle, Ariel, Machado-Pereira, Eduardo, Gutiérrez-Soto, Luis A., Santos-Silva, Thaís, Castelli, Analia V. Smith, Lacerda, Eduardo A. D., Barbosa, Cassio L., Perottoni, Hélio D., Lopes, Carlos E. Ferreira, Valença, Raquel Ruiz, Martho, Pierre Augusto Re, Bom, Clecio R., Bonatto, Charles J., Carvalho, Maiara S., Cernic, Vitor, Fernandes, Roberto Cid, Coelho, Paula, Cortesi, Ariana, Palma, Barbara Cubillos, Doubrawa, Lia, Alberice, Vincenzo Sivero Ferreira, Huaynasi, Fredi Quispe, Perin, Gabriel Jacob, Arancibia, Marcelo Jaque, Krabbe, Angela, Lima-Dias, Ciria, Lomelí-Núñez, Luis, de Oliveira, Raimundo Lopes, Lopes, Amanda R., Figueiredo, André Luiz, Lösch, Elismar, Navarete, Felipe, de Oliveira, Julia Mello, Overzier, Roderik, Placco, Vinicius M., Roig, Fernando V., Rubet, Mariana, Santos, André, Sasse, Victor Hugo, Thaina-Batista, Julia, Torres-Flores, Sergio, Beers, Timothy C., Alvarez-Candal, Alvaro, Akras, Stavros, Panda, Swayamtrupta, Limberg, Guilherme, Castellón, José Luis Nilo, Telles, Eduardo, Lopes, Paulo Afranio, Montaguth, Gissel Dayana Pardo, Silva, Leandro Beraldo e, Humire, Pedro K., Fernandes, Marcelo Borges, Cordeiro, Vinícius, Ribeiro, Tiago, de Oliveira, Claudia Mendes
The Southern Photometric Local Universe Survey (S-PLUS) is a project to map $\sim9300$ sq deg of the sky using twelve bands (seven narrow and five broadbands). Observations are performed with the T80-South telescope, a robotic telescope located at th
Externí odkaz:
http://arxiv.org/abs/2407.20701
Autor:
Branco, Vinicius, Coelho, Paula R. T., Lançon, Ariane, Martins, Lucimara P., Prugniel, Philippe
Most Galactic Globular Clusters (GCs) harbour multiple populations of stars (MPs), composed of at least two generations: the first characterized by a "standard" $\alpha$-enhanced metal mixture, as observed in field halo stars of the Milky Way, and th
Externí odkaz:
http://arxiv.org/abs/2404.15468
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:
Martín-Navarro, Ignacio, de Lorenzo-Cáceres, Adriana, Gadotti, Dimitri A., Méndez-Abreu, Jairo, Falcón-Barroso, Jesús, Sánchez-Blázquez, Patricia, Coelho, Paula, Neumann, Justus, van de Ven, Glenn, Pérez, Isabel
The debate about the universality of the stellar initial mass function (IMF) revolves around two competing lines of evidence. While measurements in the Milky Way, an archetypal spiral galaxy, seem to support an invariant IMF, the observed properties
Externí odkaz:
http://arxiv.org/abs/2312.13355
Autor:
de Sá-Freitas, Camila, Gadotti, Dimitri A., Fragkoudi, Francesca, Coccato, Lodovico, Coelho, Paula, de Lorenzo-Cáceres, Adriana, Falcón-Barroso, Jesús, Kolcu, Tutku, Martín-Navarro, Ignacio, Mendez-Abreu, Jairo, Neumann, Justus, Blazquez, Patricia Sanchez, Querejeta, Miguel, van de Ven, Glenn
Publikováno v:
A&A 678, A202 (2023)
When galactic discs settle and become massive enough, they are able to form stellar bars. These non-axisymmetric structures induce shocks in the gas, causing it to flow to the centre where nuclear structures, such as nuclear discs and rings, are form
Externí odkaz:
http://arxiv.org/abs/2308.04482
Publikováno v:
Bull. Soc. R. Sci. Liege, 2023, 92(2), 1 - 4
We present an update of the grid of detailed atmosphere models and homogeneous synthetic spectra for hot, high-gravity subdwarf stars. High-resolution spectra and synthetic photometry were calculated in the wavelength range 1,000 \r{A} - 10,000 \r{A}
Externí odkaz:
http://arxiv.org/abs/2307.08362
Autor:
de Sá-Freitas, Camila, Fragkoudi, Francesca, Gadotti, Dimitri A., Falcón-Barroso, Jesús, Bittner, Adrian, Sánchez-Blázquez, Patricia, van de Ven, Glenn, Bieri, Rebekka, Coccato, Lodovico, Coelho, Paula, Fahrion, Katja, Gonçalves, Geraldo, Kim, Taehyun, de Lorenzo-Cáceres, Adriana, Martig, Marie, Martín-Navarro, Ignacio, Mendez-Abreu, Jairo, Neumann, Justus, Querejeta, Miguel
The epoch in which galactic discs settle is a major benchmark to test models of galaxy formation and evolution but is as yet largely unknown. Once discs settle and become self-gravitating enough, stellar bars are able to form; therefore, determining
Externí odkaz:
http://arxiv.org/abs/2211.07670
Autor:
Wang, Cunshi, Bai, Yu, Yuan, Haibo, Liu, Jifeng, Fernández-Ontiveros, J. A., Coelho, Paula R. T., Jiménez-Esteban, F., Galarza, Carlos Andrés, Angulo, R. E., Cenarro, A. J., Cristóbal-Hornillos, D., Dupke, R. A., Ederoclite, A., Hernández-Monteagudo, C., López-Sanjuan, C., Marín-Franch, A., Moles, M., Sodré Jr., L., Ramió, H. Vázquez, Varela, J.
Publikováno v:
A&A 664, A38 (2022)
Context. Stellar parameters are among the most important characteristics in studies of stars, which are based on atmosphere models in traditional methods. However, time cost and brightness limits restrain the efficiency of spectral observations. The
Externí odkaz:
http://arxiv.org/abs/2205.02595
Autor:
Jiang, Jinglin, Ding, Xiaosu, Coelho, Paula, Wittbrod, Grayson, Whelton, Andrew J., Boor, Brandon E., Jung, Nusrat
Publikováno v:
In Science of the Total Environment 1 December 2024 954
