Now showing items 1-15 of 15

  • The Atlas3D Project - XXX. Star formation histories and stellar population scaling relations of early-type galaxies 

    McDermid, Richard M.; Alatalo, Katherine; Blitz, Leo; Bournaud, Frederic; Bureau, Martin; Cappellari, Michele; Crocker, Alison F.; Davies, Roger L.; Davis, Timothy A.; de Zeeuw, P. T.; Duc, Pierre-Alain; Emsellem, Eric; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; Morganti, Raffaella; Naab, Thorsten; Oosterloo, Tom; Sarzi, Marc; Scott, Nicholas; Serra, Paolo; Weijmans, Anne-Marie; Young, Lisa M. (2015-04-21) - Journal article
    We present the stellar population content of early-type galaxies from the ATLAS3D survey. Using spectra integrated within apertures covering up to one effective radius, we apply two methods: one based on measuring line-strength ...
  • A characteristic oxygen abundance gradient in galaxy disks unveiled with CALIFA 

    Sanchez, S. F.; Rosales-Ortega, F. F.; Iglesias-Paramo, J.; Molla, M.; Barrera-Ballesteros, J.; Marino, R. A.; Perez, E.; Sanchez-Blazquez, P.; Gonzalez Delgado, R.; Cid Fernandes, R.; De Lorenzo-Caceres Rodriguez, Adriana; Mendez Abreu, Jairo; Galbany, L.; Falcon-Barroso, J.; Miralles-Caballero, D.; Husemann, B.; Garcia-Benito, R.; Mast, D.; Walcher, C. J.; de Paz, A. Gil; Garcia-Lorenzo, B.; Jungwiert, B.; Vilchez, J. M.; Jilkova, Lucie; Lyubenova, M.; Cortijo-Ferrero, C.; Diaz, A. I.; Wisotzki, L.; Marquez, I.; Bland-Hawthorn, J.; Ellis, S.; van de Ven, G.; Jahnke, K.; Papaderos, P.; Gomes, J. M.; Mendoza, M. A.; Lopez-Sanchez, A. R. (2014-03-06) - Journal article
    We present the largest and most homogeneous catalog of H II regions and associations compiled so far. The catalog comprises more than 7000 ionized regions, extracted from 306 galaxies observed by the CALIFA survey. We ...
  • Connection between dynamically derived initial mass function normalisation and stellar population parameters 

    McDermid, Richard M.; Cappellari, Michele; Alatalo, Katherine; Bayet, Estelle; Blitz, Leo; Bois, Maxime; Bournaud, Frederic; Bureau, Martin; Crocker, Alison F.; Davies, Roger L.; Davis, Timothy A.; de Zeeuw, P. T.; Duc, Pierre-Alain; Emsellem, Eric; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; Morganti, Raffaella; Naab, Thorsten; Oosterloo, Tom; Sarzi, Marc; Scott, Nicholas; Serra, Paolo; Weijmans, Anne-Marie; Young, Lisa M. (2014-08-27) - Journal article
    We report on empirical trends between the dynamically determined stellar initial mass function (IMF) and stellar population properties for a complete, volume-limited sample of 260 early-type galaxies from the Atlas3D ...
  • The correlation between halo mass and stellar mass for the most massive galaxies in the universe 

    Tinker, Jeremy L.; Brownstein, Joel R.; Guo, Hong; Leauthaud, Alexie; Maraston, Claudia; Masters, Karen; Montero-Dorta, Antonio D.; Thomas, Daniel; Tojeiro, Rita; Weiner, Benjamin; Zehavi, Idit; Olmstead, Matthew D. (2017-04-20) - Journal article
    We present measurements of the clustering of galaxies as a function of their stellar mass in the Baryon Oscillation Spectroscopic Survey. We compare the clustering of samples using 12 different methods for estimating stellar ...
  • The effects of spatial resolution on integral field spectrograph surveys at different redshifts - The CALIFA perspective 

    Mast, D.; Rosales-Ortega, F. F.; Sánchez, S. F.; Vílchez, J. M.; Iglesias-Paramo, J.; Walcher, C. J.; Husemann, B.; Márquez, I.; Marino, R. A.; Kennicutt, R. C.; Monreal-Ibero, A.; Galbany, L.; De Lorenzo-Caceres Rodriguez, Adriana; Mendez Abreu, Jairo; Kehrig, C.; del Olmo, A.; Relaño, M.; Wisotzki, L.; Mármol-Queraltó, E.; Bekeraitè, S.; Papaderos, P.; Wild, V.; Aguerri, J. A. L.; Falcón-Barroso, J.; Bomans, D. J.; Ziegler, B.; García-Lorenzo, B.; Bland-Hawthorn, J.; López-Sánchez, Á. R.; van de Ven, G. (2014-01-22) - Journal article
    Context. Over the past decade, 3D optical spectroscopy has become the preferred tool for understanding the properties of galaxies and is now increasingly used to carry out galaxy surveys. Low redshift surveys include SAURON, ...
  • The impact of starbursts on the circumgalactic medium 

    Borthakur, Sanchayeeta; Heckman, Timothy; Strickland, David; Wild, Vivienne; Schiminovich, David (2013-05-01) - Journal article
    We present a study exploring the impact of a starburst on the properties of the surrounding circumgalactic medium (CGM): gas located beyond the galaxy's stellar body and extending out to the virial radius (∼ 200 kpc). We ...
  • Imprints of galaxy evolution on H II regions memory of the past uncovered by the CALIFA survey 

    Sánchez, S.F.; Pérez, E.; Rosales-Ortega, F.F.; Miralles-Caballero, D.; López-Sánchez, A.R.; Iglesias-Páramo, J.; Marino, R.A.; Sánchez-Menguiano, L.; García-Benito, R.; Mast, D.; Mendoza, M.A.; Papaderos, P.; Ellis, S.; Galbany, L.; Kehrig, C.; Monreal-Ibero, A.; Delgado, R.G.; Mollá, M.; Ziegler, B.; De Lorenzo-Caceres Rodriguez, Adriana; Mendez Abreu, Jairo; Bland-Hawthorn, J.; Bekeraitė, S.; Roth, M.M.; Pasquali, A.; Díaz, A.; Bomans, D.; Van De Ven, G.; Wisotzki, L. (2015-02) - Journal article
    Context. H II regions in galaxies are the sites of star formation, so they are special places for understanding the build-up of stellar mass in the universe. The line ratios of this ionized gas are frequently used to ...
  • Metallicity inhomogeneities in local star-forming galaxies as a sign of recent metal-poor gas accretion 

    Sánchez Almeida, J.; Morales-Luis, A.B.; Muñoz-Tuñón, C.; Elmegreen, D.M.; Elmegreen, B.G.; Mendez Abreu, Jairo (2014-03-01) - Journal article
    We measure the oxygen metallicity of the ionized gas along the major axis of seven dwarf star-forming galaxies. Two of them, SDSSJ1647+21 and SDSSJ2238+14, show ≃0.5 dex metallicity decrements in inner regions with enhanced ...
  • P-MaNGA galaxies : emission-lines properties – gas ionization and chemical abundances from prototype observations 

    Belfiore, F.; Maiolino, R.; Bundy, K.; Thomas, D.; Maraston, C.; Wilkinson, D.; Sánchez, S. F.; Bershady, M.; Blanc, G. A.; Bothwell, M.; Cales, S. L.; Coccato, L.; Drory, N.; Emsellem, E.; Fu, H.; Gelfand, J.; Law, D.; Masters, K.; Parejko, J.; Tremonti, C.; Wake, D.; Weijmans, A.; Yan, R.; Xiao, T.; Zhang, K.; Zheng, T.; Bizyaev, D.; Kinemuchi, K.; Oravetz, D.; Simmons, A. (2015-03-20) - Journal article
    MaNGA (Mapping Nearby Galaxies at Apache Point Observatory) is a 6-yr Sloan Digital Sky Survey (SDSS-IV) survey that will obtain spatially resolved spectroscopy from 3600 to 10 300 Å for a representative sample of over 10 ...
  • SDSS-IV MaNGA : a serendipitous observation of a potential gas accretion event 

    Cheung, Edmond; Stark, David V.; Huang, Song; Rubin, Kate H. R.; Lin, Lihwai; Tremonti, Christy; Zhang, Kai; Yan, Renbin; Bizyaev, Dmitry; Boquien, Médéric; Brownstein, Joel R.; Drory, Niv; Gelfand, Joseph D.; Knapen, Johan H.; Maiolino, Roberto; Malanushenko, Olena; Masters, Karen L.; Merrifield, Michael R.; Pace, Zach; Pan, Kaike; Riffel, Rogemar A.; Roman-Lopes, Alexandre; Rujopakarn, Wiphu; Schneider, Donald P.; Stott, John P.; Thomas, Daniel; Weijmans, Anne-Marie (2016-11-30) - Journal article
    The nature of warm, ionized gas outside of galaxies may illuminate several key galaxy evolutionary processes. A serendipitous observation by the MaNGA survey has revealed a large, asymmetric Hα complex with no optical ...
  • Shape of the oxygen abundance profiles in CALIFA face-on spiral galaxies 

    Sánchez-Menguiano, L.; Sánchez, S. F.; Pérez, I.; Garciá-Benito, R.; Husemann, B.; Mast, D.; Mendoza, A.; Ruiz-Lara, T.; Ascasibar, Y.; Bland-Hawthorn, J.; Cavichia, O.; Diáz, A. I.; Florido, E.; Galbany, L.; Gónzalez Delgado, R. M.; Kehrig, C.; Marino, R. A.; Márquez, I.; Masegosa, J.; Méndez-Abreu, Jairo; Mollá, M.; del Olmo, A.; Pérez, E.; Sánchez-Blázquez, P.; Stanishev, V.; Walcher, C. J.; López-Sánchez, A. R.; collaboration the CALIFA (2016-03-01) - Journal article
    We measured the gas abundance profiles in a sample of 122 face-on spiral galaxies observed by the CALIFA survey and included all spaxels whose line emission was consistent with star formation. This type of analysis allowed ...
  • Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars 

    Sánchez-Blázquez, P.; Rosales-Ortega, F.F.; Mendez Abreu, Jairo; Pérez, I.; Sánchez, S.F.; Zibetti, S.; Aguerri, J.A.L.; Bland-Hawthorn, J.; Catalán-Torrecilla, C.; Cid Fernandes, R.; De Amorim, A.; De Lorenzo-Caceres Rodriguez, Adriana; Falcón-Barroso, J.; Galazzi, A.; García Benito, R.; Gil De Paz, A.; González Delgado, R.; Husemann, B.; Iglesias-Páramo, J.; Jungwiert, B.; Marino, R.A.; Márquez, I.; Mast, D.; Mendoza, M.A.; Mollá, M.; Papaderos, P.; Ruiz-Lara, T.; Van De Ven, G.; Walcher, C.J.; Wisotzki, L. (2014-10) - Journal article
    While studies of gas-phase metallicity gradients in disc galaxies are common, very little has been done towards the acquisition of stellar abundance gradients in the same regions. We present here a comparative study of the ...
  • The Stripe 82 Massive Galaxy Project – II. Stellar mass completeness of spectroscopic galaxy samples from the Baryon Oscillation Spectroscopic Survey 

    Leauthaud, Alexie; Bundy, Kevin; Saito, Shun; Tinker, Jeremy; Maraston, Claudia; Tojeiro, Rita; Huang, Song; Brownstein, Joel R.; Schneider, Donald P.; Thomas, Daniel (2016-04-21) - Journal article
    The Baryon Oscillation Spectroscopic Survey (BOSS) has collected spectra for over one million galaxies at 0.15 < z < 0.7 over a volume of 15.3 Gpc3 (9376 deg2) – providing us an opportunity to study the most massive galaxy ...
  • Study of the stellar population properties in the discs of ten spiral galaxies 

    Morelli, L.; Corsini, E.M.; Pizzella, A.; Dalla Bontà, E.; Coccato, L.; Mendez Abreu, Jairo (2015-09-11) - Journal article
    We investigated the properties of the stellar populations in the discs of a sample of 10 spiral galaxies. Our analysis focused on the galaxy region where the disc contributes more than 95 per cent of total surface brightness ...
  • Type Ia supernova progenitors and chemical enrichment in hydrodynamical simulations. I. The single-degenerate scenario 

    Martinez, Noelia Jimenez; Tissera, P.B.; Matteucci, F. (2015-09-10) - Journal article
    The nature of the Type Ia supernova (SN Ia) progenitors remains uncertain. This is a major issue for galaxy evolution models since both chemical and energetic feedback plays a major role in the gas dynamics, star formation, ...