Listar Ciencias Exactas y Naturales por autor "Merrifield, Michael"

Mostrando ítems 1-14 de 14

    • Chromodynamical analysis of lenticular galaxies using globular clusters and planetary nebulae 

      Zanatta, Emilio José Bento; Cortesi, Arianna; Chies-Santos, Ana Leonor; Forbes, Duncan Alan; Romanowsky, Aaron J.; Alabi, Adebusola B.; Coccato, Lodovico; Oliveira, Claudia Lucia Mendes de; Brodie, Jean P.; Merrifield, Michael (2018) [Artículo de periódico]
      Recovering the origins of lenticular galaxies can shed light on the understanding of galaxy and compare them with the kinematics of planetary nebulae (PNe). The PNe and GC data come from the Planetary Nebulae Spectrograph ...

    • Formation of S0s in extreme environments : I: clues from kinematics and stellar populations 

      Coccato, Lodovico; Jaffé, Yara L.; Cortesi, Arianna; Merrifield, Michael; Johnston, Evelyn J.; Del Pino, Bruno Rodŕiguez; Haeussler, Boris; Chies-Santos, Ana Leonor; Oliveira, Claudia Lucia Mendes de; Sheen, Yun-Kyeong; Menéndez-Delmestre, Karín (2020) [Artículo de periódico]
      Despite numerous efforts, it is still unclear whether lenticular galaxies (S0s) evolve from spirals whose star formation was suppressed, or formed trough mergers or disc instabilities. In this paper we present a pilot study ...

    • Formation of S0s in extreme environments II : the star-formation histories of bulges, discs, and lenses 

      Johnston, Evelyn J.; Aragón-Salamanca, Alfonso; Fraser-McKelvie, Amelia; Merrifield, Michael; Haeussler, Boris; Coccato, Lodovico; Jaffé, Yara L.; Cortesi, Arianna; Chies-Santos, Ana Leonor; Rodríguez del Pino, Bruno; Sheen, Yun-Kyeong (2021) [Artículo de periódico]
      Different processes have been proposed to explain the formation of S0s, including mergers, disc instabilities, and quenched spirals. These processes are expected to dominate in different environments, and thus leave ...

    • SDSS-IV MaNGA : excavating the fossil record of stellar populations in spiral galaxies 

      Peterken, Thomas G.; Merrifield, Michael; Aragón-Salamanca, Alfonso; Fraser-McKelvie, Amelia; Avila-Reese, Vladimir; Riffel, Rogério; Knapen, Johan Hendrik; Drory, Niv (2020) [Artículo de periódico]
      We perform a ‘fossil record’ analysis for ≈800 low-redshift spiral galaxies, using STARLIGHT applied to integral field spectroscopic observations from the SDSS-IV MaNGA survey to obtain fully spatially resolved high-resolution ...

    • SDSS-IV MaNGA : properties of galaxies with kinematically decoupled stellar and gaseous components 

      Jin, Yifei; Chen, Yanmei; Shi, Yong; Tremonti, Christy A.; Bershady, Matthew A.; Merrifield, Michael; Emsellem, Eric; Fu, Hai; Wake, D.A.; Bundy, Kevin; Lin, Lihwai; Argudo-Fernández, Maria; Huang, Song; Stark, David V.; Storchi-Bergmann, Thaisa; Bizyaev, D.; Brownstein, Joel R.; Chisholm, John P.; Guo, Qi; Hao, Lei; Hu, Jian; Li, Cheng; Li, Ran; Masters, K.L.; Malanushenko, E.; Pan, K.; Riffel, Rogemar André; Roman-Lopes, Alexandre; Simmons, Audrey E.; Thomas, D.; Wang, Lan; Westfall, Kyle B.; Yan, Renbin (2016) [Artículo de periódico]
      We study the properties of 66 galaxies with kinematically misaligned gas and stars from MaNGA survey. The fraction of kinematically misaligned galaxies varies with galaxy physical parameters, i.e. M∗, SFR and sSFR. According ...

    • SDSS-IV MaNGA : spatially resolved star formation histories in galaxies as a function of galaxy mass and type 

      Goddard, Daniel; Thomas, D.; Maraston, Claudia; Westfall, Kyle B.; Etherington, James; Riffel, Rogério; Mallmann, Nícolas Dullius; Zheng, Zheng; Argudo-Fernández, Maria; Lian, Jianhui; Bershady, Matthew A.; Bundy, Kevin; Drory, Niv; Law, David R.; Yan, Renbin; Wake, D.A.; Weijmans, Anne Marie; Bizyaev, D.; Brownstein, Joel R.; Lane, Richard R.; Maiolino, Roberto; Masters, K.L.; Merrifield, Michael; Nitschelm, Christian; Pan, K.; Roman-Lopes, Alexandre; Storchi-Bergmann, Thaisa; Schneider, D.P. (2017) [Artículo de periódico]
      We study the internal gradients of stellar population propertieswithin 1.5 Re for a representative sample of 721 galaxies, with stellar masses ranging between 109M and 1011.5M from the SDSS-IV MaNGA Integral-Field-Unit ...

    • SDSS-IV MaNGA : star formation cessation in low-redshift galaxies. I. Dependence on stellar mass and structural properties 

      Wang, Enci; Li, Cheng; Xiao, Ting; Lin, L.; Bershady, Matthew A.; Law, David R.; Merrifield, Michael; Sánchez, Sebastián F.; Riffel, Rogemar André; Riffel, Rogério; Yan, Renbin (2018) [Artículo de periódico]
      We investigate radial gradients in the recent star formation history (SFH) of 1917 galaxies with 0.01 < z < 0.14 from the Mapping Nearby Galaxies at Apache Point Observatory project. For each galaxy, we obtain twodimensional ...

    • SDSS-IV MaNGA : stellar population gradients as a function of galaxy environment 

      Goddard, Daniel; Thomas, D.; Maraston, Claudia; Westfall, Kyle B.; Etherington, James; Riffel, Rogério; Mallmann, Nícolas Dullius; Zheng, Zheng; Argudo-Fernández, Maria; Bershady, Matthew A.; Bundy, Kevin; Drory, Niv; Law, David R.; Yan, Renbin; Wake, D.A.; Weijmans, Anne Marie; Bizyaev, D.; Brownstein, Joel R.; Lane, Richard R.; Maiolino, Roberto; Masters, K.L.; Merrifield, Michael; Nitschelm, Christian; Pan, K.; Roman-Lopes, Alexandre; Storchi-Bergmann, Thaisa (2017) [Artículo de periódico]
      We study the internal radial gradients of stellar population properties within 1.5 Re and analyse the impact of galaxy environment.We use a representative sample of 721 galaxies with masses ranging between 109M and 1011.5M ...

    • SDSS-IV MaNGA : stellar population gradients within barred galaxies 

      Fraser-McKelvie, Amelia; Merrifield, Michael; Aragón-Salamanca, Alfonso; Peterken, Thomas G.; Masters, K.L.; Krawczyk, Coleman M.; Andrews, Brett H.; Knapen, Johan Hendrik; Kruk, Sandor J.; Schaefer, Adam L.; Smethurst, Rebecca J.; Riffel, Rogério; Brownstein, Joel R.; Drory, Niv (2019) [Artículo de periódico]
      Bars in galaxies are thought to stimulate both inflow of material and radial mixing along them. Observational evidence for this mixing has been inconclusive so far, however, limiting the evaluation of the impact of bars ...

    • 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) [Artículo 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 ...

    • The extended Planetary Nebula Spectrograph (ePN.S) early-type galaxy survey : The kinematic diversity of stellar halos and the relation between halo transition scale and stellar mass 

      Pulsoni, Claudia; Gerhard, Ortwin; Arnaboldi, Magda; Coccato, Lodovico; Longobardi, Alessia; Napolitano, Nicola R.; Moylan, Emily K. M.; Narayan, Chaitra A.; Gupta, V.; Burkert, Andreas; Capaccioli, M.; Chies-Santos, Ana Leonor; Cortesi, Arianna; Freeman, Kenneth C.; Kuijken, Koenraad H.; Merrifield, Michael; Romanowsky, Aaron J.; Tortora, Crescenzo (2018) [Artículo de periódico]
      Context. In the hierarchical two-phase formation scenario, the halos of early type galaxies (ETGs) are expected to have different physical properties from the galaxies’ central regions. Aims. The ePN.S survey characterizes ...

    • The growth of the central region by acquisition of counterrotating gas in star-forming galaxies 

      Chen, Yanmei; Shi, Yong; Tremonti, Christy A.; Bershady, Matthew A.; Merrifield, Michael; Emsellem, Eric; Jin, Yifei; Huang, Song; Fu, Hai; Wake, D.A.; Bundy, Kevin; Stark, David V.; Lin, Lihwai; Argudo-Fernández, Maria; Storchi-Bergmann, Thaisa; Bizyaev, D.; Brownstein, Joel R.; Bureau, Martin; Chisholm, John P.; Drory, Niv; Guo, Qi; Hao, Lei; Hu, Jian; Li, Cheng; Li, Ran; Lopes, Alexandre Roman; Pan, K.; Riffel, Rogemar André; Thomas, D.; Wang, Lan; Westfall, Kyle B.; Yan, Renbin (2016) [Artículo de periódico]
      Galaxies grow through both internal and external processes. In about 10% of nearby red galaxies with little star formation, gas and stars are counter-rotating, demonstrating the importance of external gas acquisition in ...

    • The SLUGGS survey : chromodynamical modelling of the lenticular galaxy NGC 1023 

      Cortesi, Arianna; Chies-Santos, Ana Leonor; Pota, Vincenzo; Foster, Caroline; Coccato, Lodovico; Oliveira, Claudia Lucia Mendes de; Forbes, Duncan Alan; Merrifield, Michael; Bamford, Steven Peter; Romanowsky, Aaron J.; Brodie, Jean P.; Kartha, Sreeja S.; Alabi, Adebusola B.; Proctor, Robert Neil; Almeida, Andres (2016) [Artículo de periódico]
      Globular clusters (GCs) can be considered discrete, long-lived, dynamical tracers that retain crucial information about the assembly history of their parent galaxy. In this paper, we present a new catalogue of GC velocities ...

    • Time-slicing spiral galaxies with SDSS-IV MaNGA 

      Peterken, Thomas G.; Fraser-McKelvie, Amelia; Aragón-Salamanca, Alfonso; Merrifield, Michael; Kraljic, Katarina; Knapen, Johan Hendrik; Riffel, Rogério; Brownstein, Joel R.; Drory, Niv (2019) [Artículo de periódico]
      Spectra of galaxies contain a wealth of information about the stellar populations from which they are made. With integral field unit (IFU) surveys, such data can be used to map out stellar population properties across the ...