Navegação Ciências Exatas e da Terra por Título

Resultados 4545-4564 de 5964

    • SDSS-IV MaNGA : inside-out versus outside-in quenching of galaxies in different local environments 

      Lin, Lihwai; Hsieh, Bauching; Pan, Hsi An; Rembold, Sandro Barboza; Sánchez, Sebastián F.; Argudo-Fernández, Maria; Rowlands, Kate; Belfiore, Francesco; Bizyaev, D.; Lacerna, Ivan; Riffel, Rogério; Rong, Yu; Yuan, Fang; Drory, Niv; Maiolino, Roberto; Wilcots, Eric (2019) [Artigo de periódico]
      The large Integral Field Spectroscopy surveys have allowed the classification of ionizing sources of emission lines on sub-kiloparsec scales. In this work, we define two non-parametric parameters, quiescence (Fq) and its ...

    • SDSS IV MaNGA : metallicity and ionisation parameter in local star-forming galaxies from Bayesian fitting to photoionisation models 

      Mingozzi, Matilde; Belfiore, Francesco; Cresci, Giovanni; Bundy, Kevin; Bershady, Matthew A.; Bizyaev, D.; Blanc, Guillermo A.; Boquien, Médéric; Drory, Niv; Fu, Hai; Maiolino, Roberto; Riffel, Rogério; Rosario, David; Schaefer, Adam L.; Storchi-Bergmann, Thaisa; Telles, Jose Eduardo; Tremonti, Christy A.; Zakamska, Nadia L.; Zhang, Kai (2020) [Artigo de periódico]
      We measured gas-phase metallicity, ionisation parameter, and dust extinction for a representative sample of 1795 local star-forming galaxies using integral field spectroscopy from the SDSS-IV MaNGA survey. We self-consistently ...

    • 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) [Artigo 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 : spatial evolution of star formation triggered by galaxy interactions 

      Pan, Hsi An; Lin, Lihwai; Hsieh, Bauching; Barrera-Ballesteros, Jorge; Sánchez, Sebastián F.; Hsu, Chin Hao; Keenan, Ryan C.; Tissera, Patricia Beatriz; Boquien, Médéric; Dai, Yu Sophia; Knapen, Johan Hendrik; Riffel, Rogério; Argudo-Fernández, Maria; Xiao, Ting; Yuan, Fang (2019) [Artigo de periódico]
      Galaxy interaction is considered a key driver of galaxy evolution and star formation (SF) history. In this paper, we present an empirical picture of the radial extent of interaction-triggered SF along the merger sequence. ...

    • 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) [Artigo 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 : spatially resolved star formation main sequence and LI(N)ER sequence 

      Hsieh, Bauching; Lin, Lihwai; Lin, Jing Hua; Pan, Hsi An; Hsu, Chin Hao; Sánchez, Sebastián F.; Cano-Díaz, Mariana; Zhang, Kai; Yan, Renbin; Barrera-Ballesteros, Jorge; Boquien, Médéric; Riffel, Rogério; Brownstein, Joel R.; Cruz-Gonzalez, Irene; Hagen, Alex; Ibarra, H.; Pan, K.; Bizyaev, D.; Oravetz, Daniel J.; Simmons, Audrey E. (2017) [Artigo de periódico]
      We present our study on the spatially resolved Hαand M*relation for 536 star-forming and 424 quiescent galaxies taken from the MaNGA survey. We show that the star formation rate surface density (SSFR), derived based on ...

    • 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) [Artigo 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 : 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 ...

    • SDSS-IV MaNGA : star-formation-driven biconical outflows in the local universe 

      Bizyaev, D.; Chen, Yanmei; Shi, Yong; Riffel, Rogemar André; Riffel, Rogério; Diamond-Stanic, Aleksandar M.; Roy, Namrata (2019) [Artigo de periódico]
      We present a sample of 48 nearby galaxies with central, biconical outflows identified by the Mapping Nearby Galaxies at APO survey. All considered galaxies have star-formation-driven biconical (SFB) central outflows, with ...

    • 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) [Artigo 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) [Artigo 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 ...

    • SDSS-IV MaNGA : the impact of diffuse ionized gas on emission-line ratios, interpretation of diagnostic diagrams and gas metallicity measurements 

      Zhang, Kai; Yan, Renbin; Bundy, Kevin; Bershady, Matthew A.; Haffner, L. Matthew; Walterbos, Rene A. M.; Maiolino, Roberto; Tremonti, Christy A.; Thomas, D.; Drory, Niv; Jones, Amy P.; Belfiore, Francesco; Sánchez, Sebastián F.; Diamond-Stanic, Aleksandar M.; Bizyaev, D.; Nitschelm, Christian; Andrews, Brett H.; Brinkmann, Jon; Brownstein, Joel R.; Cheung, Edmond; Li, Cheng; Law, David R.; Roman-Lopes, Alexandre; Oravetz, Daniel J.; Pan, K.; Storchi-Bergmann, Thaisa; Simmons, Audrey E. (2017) [Artigo de periódico]
      Diffuse ionized gas (DIG) is prevalent in star-forming galaxies. Using a sample of 365 nearly face-on star-forming galaxies observed byMapping Nearby Galaxies at APO, we demonstrate how DIG in star-forming galaxies impacts ...

    • SDSS J124043.01+671034.68 : the partially burned remnant of a low-mass white dwarf that underwent thermonuclear ignition? 

      Gänsicke, Boris; Koester, Detlev; Raddi, Roberto; Toloza, Odette F.; Kepler, Souza Oliveira (2020) [Artigo de periódico]
      The white dwarf SDSS J124043.01+671034.68 (SDSS J1240+6710) was previously found to have an oxygen-dominated atmosphere with significant traces of neon, magnesium, and silicon. A possible origin via a violent late thermal ...

    • Searches for additional Higgs bosons and for vector leptoquarks in τ τ final states in proton-proton collisions at √s = 13 TeV 

      Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artigo de periódico]
      Three searches are presented for signatures of physics beyond the standard model (SM) in τ τ final states in proton-proton collisions at the LHC, using a data sample collected with the CMS detector at √ s = 13 TeV, ...

    • Searches for pair production of charginos and top squarks in final states with two oppositely charged leptons in proton-proton collisions at √s = 13 TeV 

      Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2018) [Artigo de periódico]
      A search for pair production of supersymmetric particles in events with two oppositely charged leptons (electrons or muons) and missing transverse momentum is reported. The data sample corresponds to an integrated luminosity ...

    • Searches for transverse momentum dependent ow vector uctuations in Pb-Pb and p-Pb collisions at the LHC 

      Acharya, Shreyasi; Gay Ducati, Maria Beatriz; Pereira, Luis Gustavo; Pezzi, Rafael Peretti; ALICE Collaboration (2017) [Artigo de periódico]
      The measurement of azimuthal correlations of charged particles is presented for Pb{Pb collisions at p sNN = 2.76TeV and p{Pb collisions at sNN = 5.02TeV with the ALICE detector at the CERN Large Hadron Collider. These ...

    • Search for a charged Higgs boson decaying into a heavy neutral Higgs boson and a W boson in proton-proton collisions at √s = 13 TeV 

      Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2023) [Artigo de periódico]
      A search for a charged Higgs boson H± decaying into a heavy neutral Higgs boson H and a W boson is presented. The analysis targets the H decay into a pair of tau leptons with at least one of them decaying hadronically and ...

    • Search for a charged Higgs boson decaying to charm and bottom quarks in proton-proton collisions at √s = 8 TeV 

      Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2018) [Artigo de periódico]
      A search for charged Higgs boson decaying to a charm and a bottom quark (H+ ! cb) is performed using 19.7 fb􀀀1 of pp collision data at p s = 8TeV. The production mechanism investigated in this search is tt pair production ...

    • Search for a common baryon source in high-multiplicity pp collisions at the LHC 

      Acharya, Shreyasi; Gay Ducati, Maria Beatriz; Pereira, Luis Gustavo; Pezzi, Rafael Peretti; ALICE Collaboration (2020) [Artigo de periódico]
      We report on the measurement of the size of the particle-emitting source from two-baryon correlations with ALICE in high-multiplicity pp collisions at √s = 13 TeV. The source radius is studied with low relative momentum ...

    • Search for additional neutral MSSM Higgs bosons in the ττ final state in proton-proton collisions at √s = 13TeV 

      Sirunyan, A. M.; Silveira, Gustavo Gil da; CMS Collaboration (2018) [Artigo de periódico]
      A search is presented for additional neutral Higgs bosons in the nal state in proton-proton collisions at the LHC. The search is performed in the context of the minimal supersymmetric extension of the standard model (MSSM), ...