Results 1 to 10 of about 6,253,245 (414)

Recovering stellar population parameters via different population models and stellar libraries [PDF]

Monthly notices of the Royal Astronomical Society, 2019
Three basic ingredients are required to generate a simple stellar population (SSP) library, i.e., an initial mass function (IMF), a stellar evolution model/isochrones, and an empirical/theoretical stellar spectral library.
Cappellari, Michele, Ge, Junqiang, Lu, Youjun, Mao, Shude, Yan, Renbin   +4 more
core   +2 more sources

Unresolved versus resolved: testing the validity of young simple stellar population models with VLT/MUSE observations of NGC 3603 [PDF]

A&A 593, A78 (2016), 2016
CONTEXT. Stellar populations are the building blocks of galaxies including the Milky Way. The majority, if not all extragalactic studies are entangled with the use of stellar population models given the unresolved nature of their observation. Extragalactic systems contain multiple stellar populations with complex star formation histories.
Anderson, J. P., Galbany, L., Hamuy, M., Krühler, T., Kuncarayakti, H.   +4 more
arxiv   +4 more sources

Reevaluating Old Stellar Populations [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
Determining the properties of old stellar populations (those with age >1 Gyr) has long involved the comparison of their integrated light, either in the form of photometry or spectroscopic indexes, with empirical or synthetic templates. Here we reevaluate the properties of old stellar populations using a new set of stellar population synthesis models ...
John J. Eldridge, Elizabeth R. Stanway
arxiv   +5 more sources

The Effects of Stellar Rotation. I. Impact on the Ionizing Spectra and Integrated Properties of Stellar Populations [PDF]

, 2012
We present a sample of synthetic massive stellar populations created using the Starburst99 evolutionary synthesis code and new sets of stellar evolutionary tracks, including one set that adopts a detailed treatment of rotation. Using the outputs of the Starburst99 code, we compare the populations' integrated properties, including ionizing radiation ...
Bressan, Cerviño, Cid Fernandes, Claus Leitherer, da Silva, Daniel Schaerer, de Mink, Dopita, Drout, Emily M. Levesque, Fumagalli, Georges Meynet, Georgy, González Delgado, González Delgado, Groves, Hillier, Huang, Izotov, Kewley, Kewley, Kobulnicky, Kobulnicky, Leitherer, Leitherer, Leitherer, Leitherer, Levesque, Levesque, Levesque, Maeder, Massey, Massey, Massey, Meynet, Neugent, Rix, Salasnich, Schaller, Shull, Snijders, Sylvia Ekstrom, Tremonti, Vázquez, Vázquez, Wolff, Zahn   +46 more
arxiv   +3 more sources

Stellar population and kinematics of NGC404 [PDF]

Astronomy and Astrophysics, 2010
NGC404 is a nearly face-on nearby low-luminosity lenticular galaxy. Probing its characteristics provides a wealth of information on the details of possible evolution processes of dS0 galaxies which may not be possible in other, more distant objects.
A. Bouchard, Barazza, Barbon, Barth, Bedregal, Boselli, Bouchard, Chilingarian, Chilingarian, Dalcanton, Davidge, De Rijcke, De Rijcke, de Rijcke, del Río, Faber, Fabricant, Gallagher, Graham, Harbeck, Ho, Jerjen, Karachentsev, Koleva, Koleva, Le Borgne, Lisker, Lisker, M. Koleva, M. Sharina, Maoz, Moran, P. Prugniel, Pogge, Prugniel, Ravindranath, Salpeter, Sharina, Sil'chenko, Simien, Temi, Tikhonov, Tojeiro, Tonry, van den Bergh, van Zee, Wiklind   +46 more
core   +9 more sources

Challenges in Stellar Population Studies [PDF]

Proceedings of the International Astronomical Union, 2009
The stellar populations of galaxies contain a wealth of detailed information. From the youngest, most massive stars, to almost invisible remnants, the history of star formation is encoded in the stars that make up a galaxy.
Arnaboldi, Arnouts, Bertelli, Brinchmann, Coelho, Eldridge, Faber, Fairbairn, Fioc, Iocco, Jarle Brinchmann, Le Fèvre, Lejeune, Maeder, Maraston, Marchetti, Marigo, Marigo, Meynet, Moni Bidin, Moretti, Munari, Mármol-Queraltó, Pozzetti, Schaerer, Tantalo, Tinsley, Van Bever, Walcher   +28 more
core   +4 more sources

The high mass end of the stellar mass function: Dependence on stellar population models and agreement between fits to the light profile [PDF]

, 2017
We quantify the systematic effects on the stellar mass function which arise from assumptions about the stellar population, as well as how one fits the light profiles of the most luminous galaxies at z ~ 0.1. When comparing results from the literature, we
Bernardi, M., Fischer, J. -L., Huertas-Company, M., Maraston, C., Meert, A., Shankar, F., Sheth, R. K., Vikram, V.   +7 more
core   +3 more sources

Stellar Population Trends in S0 Galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
We present stellar population age and metallicity trends for a sample of 59 S0 galaxies based on optical SDSS and NIR J & H photometry. When combined with optical g and r passband imaging data from the SDSS archive and stellar population models, we ...
Balcells, Barnes, Barway, Bedregal, Bell, Bell, Bell, Bertelli, Boselli, Bothun, Bower, Bruzual, Butcher, Byrd, Caldwell, Caldwell, Cole, Combes, Conroy, Cooper, Courteau, Courteau, Croton, Dalcanton, de Jong, de Jong, De Lucia, Dressler, Dressler, Ellis, Eminian, Falco, Fall, Ferguson, Fisher, Freeman, Fritze, Garnett, Gilmore, Graves, Hernquist, Hinshaw, Hopkins, Icke, James A. Rose, Jorgensen, Kannappan, Kannappan, Kannappan, Kauffmann, Kawata, Kent, Koo, Kormendy, Krajnović, Kronberger, Kuntschner, L. C. Prochaska Chamberlain, Le Borgne, Lee, Lequeux, MacArthur, MacArthur, MacArthur, MacArthur, Maraston, Marigo, Marzke, McDonald, McDonald, McDonald, Mehlert, Mei, Michael McDonald, Mihos, Moore, Moorthy, Navarro, Neistein, Nelan, Norris, Peletier, Peletier, Peletier, Poggianti, Portinari, Quilis, Rawle, Renzini, Richard, Rickes, Roškar, Roškar, Schechter, Schiavon, Schiavon, Schlegel, Serra, Shapley, Sil’chenko, Skrutskie, Smith, Steinmetz, Strateva, Stéphane Courteau, Sánchez-Blázquez, Sánchez-Blázquez, Tamura, Taylor, Thomas, Tikhonov, Tonini, Trager, Tremonti, van den, Vazdekis, Vazdekis, Vazdekis, Weinzirl, Wiklind, Worthey, Yoachim, York, Zackrisson, Zibetti   +124 more
core   +7 more sources

Modeling Tracers of Young Stellar Population Age in Star-Forming Galaxies [PDF]

, 2013
The young stellar population of a star-forming galaxy is the primary engine driving its radiative properties. As a result, the age of a galaxy's youngest generation of stars is critical for a detailed understanding of its star formation history, stellar content, and evolutionary state. Here we present predicted equivalent widths for the H-beta, H-alpha,
E. Levesque, C. Leitherer
arxiv   +3 more sources

Connection between dynamically derived initial mass function normalization and stellar population parameters [PDF]

, 2014
Date of Acceptance: 10/08/2014We 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 project.
Alatalo, Katherine, Bayet, Estelle, Blitz, Leo, Bois, Maxime, Bournaud, Frédéric, Bureau, Martin, Cappellari, Michele, Crocker, Alison F., Davies, Roger L., Davis, Timothy, de Zeeuw, P.T., Duc, Pierre-Alain, Emsellem, Eric, Khochfar, Sadegh, Krajnović, Davor, Kuntschner, Harald, McDermid, Richard M., Morganti, Raffaella, Naab, Thorsten, Oosterloo, Tom, Sarzi, Marc, Scott, Nicholas, Serra, Paolo, Weijmans, Anne Marie, Young, Lisa M.   +24 more
core   +6 more sources