Navegação Ciências Exatas e da Terra por Autor "Fernández-Trincado, José Gregorio"

Resultados 1-13 de 13

    • APOGEE discovery of a chemically atypical star disrupted from NGC 6723 and captured by the Milky Way bulge 

      Fernández-Trincado, José Gregorio; Alves-Brito, Alan; Vieira, Katherine (2021) [Artigo de periódico]
      The central (‘bulge’) region of the Milky Way is teeming with a significant fraction of mildly metal-deficient stars with atmospheres that are strongly enriched in cyanogen (12C 14N). Some of these objects, which are also ...

    • Atypical Mg-poor Milky Way field stars with globular cluster second-generation-like chemical patterns 

      Fernández-Trincado, José Gregorio; Alves-Brito, Alan; Chanamé, Julio (2017) [Artigo de periódico]
      We report the peculiar chemical abundance patterns of 11 atypical Milky Way (MW) field red giant stars observed by the Apache Point Observatory Galactic Evolution Experiment (APOGEE). These atypical giants exhibit strong ...

    • Chemical trends in the Galactic halo from APOGEE data 

      Fernández Alvar, Emma; Carigi, Leticia; Allende Prieto, Carlos; Hayden, Michael; Beers, T.C.; Fernández-Trincado, José Gregorio; Meza, Andres; Schultheis, Mathias; Santiago, Basilio Xavier; Queiroz, Anna Bárbara de Andrade; Anders, Friedrich; Costa, Luiz N. da; Chiappini, C.C.M. (2017) [Artigo de periódico]
      The galaxy formation process in the cold dark matter scenario can be constrained from the analysis of stars in the Milky Way’s halo system. We examine the variation of chemical abundances in distant halo stars observed by ...

    • Estimating dust attenuation from galactic spectra : II. stellar and gas attenuation in star-forming and diffuse ionized gas regions in MaNGA 

      Li, Niu; Li, Cheng; Mo, Houjun; Zhou, Shuang; Liang, Fu-Heng; Boquien, Médéric; Drory, Niv; Fernández-Trincado, José Gregorio; Greener, Michael; Riffel, Rogério (2021) [Artigo de periódico]
      We investigate the dust attenuation in both stellar populations and ionized gas in kiloparsec-scale regions in nearby galaxies using integral field spectroscopy data from MaNGA MPL-9. We identify star-forming (H II) and ...

    • Gaia-IGRINS synergy : orbits of newly identified Milky Way star clusters 

      Garro, Elisa Rita; Fernández-Trincado, José Gregorio; Minniti, Dante; Moya, Wisthon Aby Haro; Palma, Tali; Beers, Timothy C.; Placco, Vinicius M.; Barbuy, Beatriz; Sneden, Chris; Alves-Brito, Alan; Dias, Bruno Moreira de Souza; Afsar, Melike; Frelijj, Heinz; Lane, Richard R. (2023) [Artigo de periódico]
      Context. The recent and exquisite astrometric, photometric, and radial velocity measurements of the Gaia mission resulted in a substantial advancement of the determination of the orbits for old star clusters, including the ...

    • MaNGA 8313-1901 : gas accretion observed in a blue compact dwarf galaxy 

      Ju, Mengting; Yin, Jun; Liu, Rongrong; Hao, Lei; Shao, Zhengyi; Feng, Shuai; Riffel, Rogério; Liu, Chenxu; Stark, David V.; Shen, Shiyin; Telles, Jose Eduardo; Fernández-Trincado, José Gregorio; Wang, Junfeng; Xu, Haiguang; Bizyaev, D.; Rong, Yu (2022) [Artigo de periódico]
      Gas accretion is an important process in the evolution of galaxies, but it has limited direct observational evidences. In this paper, we report the detection of a possible ongoing gas accretion event in a blue compact dwarf ...

    • SDSS-IV MaNGA : exploring the local scaling relations for N/O 

      Schaefer, Adam L.; Tremonti, Christy A.; Kauffmann, Guinevere; Andrews, Brett H.; Bershady, Matthew A.; Boardman, Nicholas Fraser; Bundy, Kevin; Drory, Niv; Fernández-Trincado, José Gregorio; Preece, Holly; Riffel, Rogério; Riffel, Rogemar André; Sánchez, Sebastián F. (2022) [Artigo de periódico]
      We present, for the first time, the relationship between local stellar mass surface density, Σ*, and N/O derived from SDSS-IV MaNGA data, using a sample of 792,765 high signal-to-noise ratio star-forming spaxels. Using a ...

    • SDSS IV MaNGA : star-formation driven biconical outflows in face-on galaxies 

      Bizyaev, D.; Chen, Yan-Mei; Shi, Yong; Roy, Namrata; Riffel, Rogério; Riffel, Rogemar André; Fernández-Trincado, José Gregorio (2022) [Artigo de periódico]
      We find 132 face-on and low inclination galaxies with central star formation driven biconical gas outflows (FSFB) in the SDSS MaNGA (Mapping Nearby Galaxies at APO) survey. The FSFB galaxies show either double peaked or ...

    • Sloan Digital Sky Survey IV : mapping the Milky Way, nearby galaxies, and the distant universe 

      Blanton, M.R.; Bershady, Matthew A.; Abolfathi, Bela; Albareti, Franco D.; Allende Prieto, Carlos; Almeida, Andres; Alonso Garcia, Javier; Anders, Friedrich; Anderson, Scott F.; Andrews, Brett H.; Aquino-Ortíz, Erik; Aragón-Salamanca, Alfonso; Argudo-Fernández, Maria; Armengaud, Eric; Aubourg, Éric; Avila-Reese, Vladimir; Badenes, Carles; Bailey, Stephen; Barger, Kathleen A.; Barrera-Ballesteros, Jorge; Bartosz, Curtis; Bates, Dominic; Baumgarten, Falk; Bautista, Julian; Beaton, Rachael Lynn; Beers, T.C.; Belfiore, Francesco; Bender, Chad Frederick; Berlind, Andreas A.; Bernardi, Mariangela; Beutler, Florian; Bird, Jonathan C.; Bizyaev, D.; Blanc, Guillermo A.; Blomqvist, Michael C.; Bolton, Adam S.; Boquien, Médéric; Borissova, Jura; Bosch, Remco van den; Bovy, Jo; Brandt, W.N.; Brinkmann, Jon; Brownstein, Joel R.; Bundy, Kevin; Burgasser, Adam J.; Burtin, Etienne; Busca, Nicolas G.; Cappellari, Michele; Carigi, Leticia; Carlberg, J.K.; Carnero Rosell, Aurelio; Carrera, Ricardo; Chanover, Nancy J.; Cherinka, Brian; Cheung, Edmond; Chew, Yilen Gómez Maqueo; Chiappini, C.C.M.; Choi, Peter Doohyun; Chojnowski, Stephen Drew; Chuang, Chia-Hsun; Chung, Haeun; Cirolini, Rafael Fernando; Clerc, Nicolas; Cohen, Roger; Comparat, Johan; Costa, Luiz N. da; Cousinou, Marie-Claude; Covey, Kevin; Crane, Jeffrey D.; Croft, Rupert A.C.; Cruz-Gonzalez, Irene; Cuadra, Daniel Garrido; Cunha, Katia; Damke, Guillermo J.; Darling, Jeremy; Davies, Roger L.; Dawson, K.S.; Macorra, Axel de la; Dell'Agli, Flavia; De Lee, Nathan M.; Delubac, Timothée; Di Mille, Francesco; Diamond-Stanic, Aleksandar M.; Cano-Díaz, Mariana; Donor, John; Downes Wallace, Juan Jose; Drory, Niv; Du Mas Des Bourboux, Hélion; Duckworth, Christopher; Dwelly, Tom; Dyer, Jamie Christine; Ebelke, Garrett L.; Eigenbrot, Arthur D.; Eisenstein, Daniel, J.; Emsellem, Eric; Eracleous, Michael; Escoffier, Stephanie; Evans, Michael L.; Fan, Xiaohui; Fernández Alvar, Emma; Fernández-Trincado, José Gregorio; Feuillet, Diane; Finoguenov, Alexis; Fleming, S.W.; Font-Ribera, A.; Fredrickson, Alexander; Freischlad, Gordon; Frinchaboy, P.M.; Fuentes, Carla E.; Galbany, Lluís; Dias, Rafael Augusto Garcia; García-Hernández, D. A.; Gaulme, Patrick; Geisler, Doug; Gelfand, Joseph D.; Gil-Marín, Héctor; Gillespie, Bruce A.; Goddard, Daniel; Gonzalez-Perez, Violeta; Grabowski, Kathleen; Green, Paul J.; Grier, Catherine J.; Gunn, James E.; Guo, Hong; Guy, Julien; Hagen, Alex; Hahn, ChangHoon; Hall, Matthew; Harding, Paul; Hasselquist, Sten; Hawley, Suzanne L.; Hearty, Frederick R.; González Hernández, Jonay I.; Ho, Shirley; Hogg, D.W.; Holley-Bockelmann, Kelly; Holtzman, J.A.; Holzer, Parker H.; Huehnerhoff, Joseph; Hutchinson, Timothy A.; Hwang, Ho Seong; Ibarra Medel, Hector Javier; Ilha, Gabriele da Silva; Ivans, Inese I.; Ivory, KeShawn; Jackson, Kelly M.; Jensen, Trey W.; Johnson, Jennifer A.; Jones, Amy P.; Jönsson, Henrik; Jullo, Eric; Kamble, Vikrant Anand; Kinemuchi, Karen; Kirkby, David; Kitaura, Francisco-Shu; Klaene, Mark A.; Knapp, G. R.; Kneib, J.P.; Kollmeier, Juna A.; Lacerna, Ivan; Lane, Richard R.; Lang, Dustin; Law, David R.; Lazarz, Daniel; Lee, Youngbae; Le Goff, Jean-Marc; Liang, Fu-Heng; Li, Cheng; Li, Hongyu; Lian, Jianhui; Lima, Marcos Vinicius Borges Teixeira; Lin, Lihwai; Lin, Y.-T.; Lis, Sara Bertran de; Lizaola, Miguel Angel C. de Icaza; Long, Daniel C.; Lucatello, Sara; Lundgren, B.; Macdonald, Nicholas; Machado, Alice Deconto; MacLeod, Chelsea L.; Mahadevan, Suvrath; Maia, Marcio Antonio Geimba; Maiolino, Roberto; Majewski, Steven Raymond; Malanushenko, E.; Malanushenko, V.; Manchado, Arturo; Mao, Shude; Maraston, Claudia; Marques-Chaves, Rui; Masseron, Thomas; Masters, K.L.; McBride, Cameron K.; McDermid, Richard; McGrath, Brianne; McGreer, Ian D.; Medina Peña, Nicolás; Melendez, Matthew; Merloni, Andrea; Merrifield, Michael; Mészáros, S.; Meza, Andres; Minchev, Ivan; Minniti, Dante; Miyaji, Takamitsu; More, Surhud Shrikant; Mulchaey, John Scott; Muller-Sanchez, Francisco; Muna, Demitri; Mũñoz, Ricardo R.; Myers, A.D.; Nair, Preethi B.; Nandra, Kirpal; Nascimento, Janaina Correa do; Negrete, Alenka; Ness, Melissa; Newman, Jeffrey A.; Nichol, Robert C.; Nidever, D.L.; Nitschelm, Christian; Ntelis, Pierros; O'Connell, Julia E.; Oelkers, Ryan J.; Oravetz, Audrey; Oravetz, Daniel J.; Pace, Zach; Padilla, Nelson; Palanque-Delabrouille, Nathalie; Alonso Palicio, Pedro; Pan, K.; Parejko, J.K.; Parikh, Taniya; Pâris, Isabelle; Park, Changbom; Patten, Alim Y.; Peirani, Sébastien; Pellejero-Ibanez, Marcos; Penny, Samantha J.; Percival, Will J.; Pérez-Fournon, Ismael; Petitjean, P.; Pieri, Matthew M.; Pinsonneault, Marc H.; Pisani, Alice; Poleski, Radosław; Prada, Francisco; Prakash, Abhishek; Queiroz, Anna Bárbara de Andrade; Raddick, M. Jordan; Raichoor, Anand; Rembold, Sandro Barboza; Richstein, Hannah; Riffel, Rogemar André; Riffel, Rogério; Rix, H.-W.; Robin, Annie C.; Rockosi, C.M.; Rodríguez-Torres, Sergio; Roman-Lopes, Alexandre; Román-Zñiga, Carlos Gerardo; Rosado, Margarita; Ross, Ashley Jacob; Rossi, Graziano; Ruan, John J.; Ruggeri, Rossana; Rykoff, Eli; Salazar-Albornoz, Salvador; Salvato, Mara; Sánchez, Ariel G.; Sánchez Aguado, David; Sánchez-Gallego, José Ramón; Santana, Felipe A.; Santiago, Basilio Xavier; Sayres, Conor; Schiavon, Ricardo P.; Schimoia, Jáderson da Silva; Schlafly, Edward F.; Schlegel, David J.; Schneider, D.P.; Schultheis, Mathias; Schuster, William J.; Schwope, Axel D.; Seo, Hee-Jong; Shao, Zhengyi; Shen, Shiyin; Shetrone, M.; Shull, John Michael; Simon, Josh D.; Skinner, Danielle; Skrutskie, M.F.; Slosar, A.; Smith, Verne V.; Sobeck, Jennifer S.; Sobreira, Flávia; Somers, Garrett; Souto, Diogo Martins; Stark, David V.; Stassun, Keivan G.; Stauffer, Fritz; Steinmetz, M.; Storchi-Bergmann, Thaisa; Streblyanska, Alina; Stringfellow, Guy S.; Suárez, Genaro; Sun, Jing; Suzuki, Nao; Szigeti, Laszlo; Taghizadeh-Popp, Manuchehr; Tang, Baitian; Tao, Charling; Tayar, Jamie; Tembe, Mita; Teske, Johanna K.; Thakar, Aniruddha R.; Thomas, D.; Thompson, Benjamin A.; Tinker, Jeremy; Tissera, Patricia Beatriz; Tojeiro, R.; Hernandez-Toledo, Hector M.; Torre, Sylvain De La; Tremonti, Christy A.; Troup, Nicholas W.; Valenzuela, Octavio; Valpuesta, Inma Martinez; Vargas-González, Jaime; Vargas Magaña, Mariana; Vazquez, Jose Alberto; Villanova , Sandro; Vivek, M.; Vogt, N.P.; Wake, D.A.; Walterbos, Rene A. M.; Wang, Yuting; Weaver, Benjamin A.; Weijmans, Anne Marie; Weinberg, D.H.; Westfall, Kyle B.; Whelan, David G.; Wild, Vivienne; Wilson, John C.; Wood-Vasey, W.M.; Wylezalek, Dominika; Xiao, Ting; Yan, Renbin; Yang, Meng; Ybarra, Jason E.; Yèche, Christophe; Zakamska, Nadia L.; Zamora, Olga; Zarrouk, Pauline; Zasowski, G.; Zhang, Kai; Zhao, Gong-Bo; Zheng, Zheng; Zhou, Xu; Zhou, Zhimin; Zhu, Guangtun; Zoccali, Manuela; Zou, Hu (2017) [Artigo de periódico]
      We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands ...

    • StarHorse : a Bayesian tool for determining stellar masses, ages, distances, and extinctions for field stars 

      Queiroz, Anna Bárbara de Andrade; Anders, Friedrich; Santiago, Basilio Xavier; Chiappini, C.C.M.; Steinmetz, M.; Dal Ponte, Marina; Stassun, Keivan G.; Costa, Luiz N. da; Maia, Marcio Antonio Geimba; Souza, Juliana Crestani Ribeiro de; Beers, T.C.; Fernández-Trincado, José Gregorio; García-Hernández, D. A.; Roman-Lopes, Alexandre; Zamora, Olga (2018) [Artigo de periódico]
      Understanding the formation and evolution of our Galaxy requires accurate distances, ages, and chemistry for large populations of field stars. Here, we present several updates to our spectrophotometric distance code, which ...

    • StarHorse results for spectroscopic surveys and Gaia DR3 : chrono-chemical populations in the solar vicinity, the genuine thick disk, and young alpha-rich stars 

      Queiroz, Anna Bárbara de Andrade; Anders, Friedrich; Chiappini, C.C.M.; Barbuy, Beatriz; Khalatyan, Arman V.; Santiago, Basilio Xavier; Nepal, Samir; Steinmetz, M.; Gallart, Carme; Valentini, Marica; Dal Ponte, Marina; Barbuy, Beatriz; Pérez Villegas, Maria de Los Angeles; Masseron, Thomas; Fernández-Trincado, José Gregorio; Khoperskov, Sergey A.; Minchev, Ivan; Fernández Alvar, Emma; Lane, Richard R.; Nitschelm, Christian (2023) [Artigo de periódico]
      The Gaia mission has provided an invaluable wealth of astrometric data for more than a billion stars in our Galaxy. The synergy between Gaia astrometry, photometry, and spectroscopic surveys gives us comprehensive information ...

    • The enigmatic globular cluster UKS 1 obscured by the bulge : H-band discovery of nitrogen-enhanced stars 

      Fernández-Trincado, José Gregorio; Minniti, Dante; Beers, Timothy C.; Villanova , Sandro; Geisler, Doug; Souza, Stefano O.; Smith, Leigh C.; Placco, Vinicius M.; Vieira, Katherine; Pérez Villegas, Maria de Los Angeles; Barbuy, Beatriz; Alves-Brito, Alan; Bidin, Christian Moni; Alonso Garcia, Javier; Tang, Baitian; Palma, Tali (2020) [Artigo de periódico]
      The presence of nitrogen-enriched stars in globular clusters provides key evidence for multiple stellar populations (MPs), as has been demonstrated with globular cluster spectroscopic data towards the bulge, disk, and halo. ...

    • The metal-rich halo tail extended in |z|: a characterization with Gaia DR2 and APOGEE 

      Fernández Alvar, Emma; Fernández-Trincado, José Gregorio; Moreno-Díaz, Edmundo; Schuster, William J.; Carigi, Leticia; Recio-Blanco, Alejandra; Beers, Timothy C.; Chiappini, C.C.M.; Anders, Friedrich; Santiago, Basilio Xavier; Queiroz, Anna Bárbara de Andrade; Pérez Villegas, Maria de Los Angeles; Zamora, Olga; García-Hernández, D. A.; Ortigoza-Urdaneta, Mario (2019) [Artigo de periódico]
      We report an analysis of the metal-rich tail ([Fe/H]>−0.75) of stars located at distances fromthe Galactic plane up to|z|∼10 kpc, observed by the Apache Point Observatory GalacticEvolution Experiment (APOGEE). We examine ...