Zobrazeno 1 - 10
of 15 827
pro vyhledávání: '"Santos,Ana"'
Autor:
de Souza, Rafael S., Dahmer-Hahn, Luis G., Shen, Shiyin, Chies-Santos, Ana L., Chen, Mi, Rahna, P. T., Ye, Renhao, Tahmasebzade, Behzad
We present capivara, a fast and scalable multi-decomposition package designed to study astrophysical properties within distinct structural components of galaxies. Our spectro-decomposition code for analyzing integral field unit (IFU) data enables a m
Externí odkaz:
http://arxiv.org/abs/2410.21962
Autor:
Contreras-Santos, Ana, Buitrago, Fernando, Knebe, Alexander, Rasia, Elena, Pearce, Frazer R., Cui, Weiguang, Power, Chris, Winstanley, Jordan
The observation of a massive galaxy with an extremely low dark matter content (i.e. NGC 1277) has posed questions about how such objects form and evolve in a hierarchical universe. We here report on the finding of several massive, dark matter-deficie
Externí odkaz:
http://arxiv.org/abs/2409.10356
Autor:
Canossa-Gosteinski, Marco A., Chies-Santos, Ana L., Furlanetto, Cristina, Bonatto, Charles J., Flores-Freitas, Rodrigo, Schoenell, William, Beasley, Michael A., Overzier, Roderik, Santiago, Basilio X., Pieres, Adriano, Zanatta, Emílio J. B., Alamo-Martinez, Karla A., Balbinot, Eduardo, Queiroz, Anna B. A., Alves-Brito, Alan
Understanding faint dwarf galaxies is fundamental to the development of a robust theory of galaxy formation on small scales. Since the discovery of a population of ultra diffuse galaxies (UDGs) rich in globular clusters (GCs) in Coma, an increasing n
Externí odkaz:
http://arxiv.org/abs/2409.10205
Publikováno v:
A&A 690, A146 (2024)
Galaxy cluster mergers are believed to generate large-scale shock waves that are ideal sites for electron acceleration. We compute radio emission light curves for galaxy group and cluster mergers simulated in a cosmological context to study the depen
Externí odkaz:
http://arxiv.org/abs/2409.09422
Strong gravitational lensing and stellar dynamics are independent and powerful methods to probe the total gravitational potential of galaxies, and thus, their total mass profile. However, inherent degeneracies in the individual models makes it diffic
Externí odkaz:
http://arxiv.org/abs/2407.02297
Autor:
Haggar, Roan, De Luca, Federico, De Petris, Marco, Sazonova, Elizaveta, Taylor, James E., Knebe, Alexander, Gray, Meghan E., Pearce, Frazer R., Contreras-Santos, Ana, Cui, Weiguang, Kuchner, Ulrike, Paun, Robert A. Mostoghiu, Power, Chris
Numerous metrics exist to quantify the dynamical state of galaxy clusters, both observationally and within simulations. Many of these correlate strongly with one another, but it is not clear whether all of these measures probe the same intrinsic prop
Externí odkaz:
http://arxiv.org/abs/2406.15555
Autor:
Gondhalekar, Yash, Chies-Santos, Ana L., de Souza, Rafael S., Queiroz, Carolina, Lopes, Amanda R., Ferrari, Fabricio, Azevedo, Gabriel M., Monteiro-Pereira, Hellen, Overzier, Roderik, Castelli, Analía V. Smith, Jaffé, Yara L., Haack, Rodrigo F., Rahna, P. T., Shen, Shiyin, Mu, Zihao, Lima-Dias, Ciria, Barbosa, Carlos E., Schwarz, Gustavo B. Oliveira, Riffel, Rogério, Jimenez-Teja, Yolanda, Grossi, Marco, de Oliveira, Claudia L. Mendes, Schoenell, William, Ribeiro, Thiago, Kanaan, Antonio
We study 51 jellyfish galaxy candidates in the Fornax, Antlia, and Hydra clusters. These candidates are identified using the JClass scheme based on the visual classification of wide-field, twelve-band optical images obtained from the Southern Photome
Externí odkaz:
http://arxiv.org/abs/2406.04213
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:
Chen, Mi, de Souza, Rafael S., Xu, Quanfeng, Shen, Shiyin, Chies-Santos, Ana L., Ye, Renhao, Canossa-Gosteinski, Marco A., Cong, Yanping
We introduce galmoss, a python-based, torch-powered tool for two-dimensional fitting of galaxy profiles. By seamlessly enabling GPU parallelization, galmoss meets the high computational demands of large-scale galaxy surveys, placing galaxy profile fi
Externí odkaz:
http://arxiv.org/abs/2404.07780
Autor:
Pedroso-Santos, Fillipe, Hilário, Renato Richard, da Silva Xavier, Bruna, Santos, Ana M. C., Mustin, Karen, Carvalho, William Douglas
Publikováno v:
Diversity and Distributions, 2024 Sep 01. 30(9), 1-18.
Externí odkaz:
https://www.jstor.org/stable/48784963
