Results 21 to 30 of about 171,691 (281)

The SWIRE-VVDS-CFHTLS surveys: stellar mass assembly over the last 10 Gyears. Evidence for a major build up of the red sequence between z=2 and z=1 [PDF]

, 2007
(abridged abstract) We present an analysis of the stellar mass growth over the last 10 Gyrs using a large 3.6$\mu$ selected sample. We split our sample into active (blue) and quiescent (red) galaxies.
A. Cappi, A. Iovino, A. Mazure, A. Pollo, A. Zanichelli, Arnouts, B. Garilli, B. Marano, B. Meneux, Baldry, Bell, Bell, Bell, Bell, Benson, Bertin, Bolzonnella, Borch, Bouwens, Brinchmann, Brown, Bruzual, Buat, Bundy, Bundy, Bunker, C. Adami, C. J. Walcher, C. Lonsdale, C. Marinoni, Caputi, Chabrier, Cimatti, Cimatti, Cimatti, Cohen, Cole, Cowie, Croton, D. Bottini, D. Maccagni, D. Vergani, Daddi, Daddi, de Lucia, Dickinson, Driver, Drory, Drory, Drory, E. Zucca, F. Lamareille, Fazio, Fioc, Fontana, Fontana, Fontana, Franceschini, Franzetti, G. Vettolani, G. Zamorani, Gwyn, H. J. McCracken, Heavens, Hopkins, I. Gavignaud, Ilbert, Ilbert, Ilbert, J. P. Picat, J. Surace, Juneau, Kauffmann, Kochanek, L. Guzzo, L. Pozzetti, L. Tresse, Lilly, Lonsdale, M. Bolzonella, M. Polletta, M. Radovich, M. Scodeggio, Madau, Madgwick, Madgwick, Maraston, Marinoni, Martin, Mo, O. Ilbert, O. Le Fèvre, P. Ciliegi, P. Franzetti, Pozzetti, R. Merighi, R. Pellò, R. Scaramella, Reddy, Rudnick, S. Arnouts, S. Bardelli, S. Charlot, S. de la Torre, S. Foucaud, S. Paltani, S. Temporin, Salim, Saracco, Schiminovich, Somerville, Springel, Steidel, T. Contini, Takeuchi, Treu, V. Le Brun, van Dokkum, van Dokkum, Warren, Yoshikawa, Zucca   +121 more
core   +5 more sources

Being WISE, I : validating stellar population models and M*/L ratios at 3.4 and 4.6 µm [PDF]

, 2014
Using data from the Wide-field Infrared Survey Explorer mission, we have measured near infra-red (NIR) photometry of a diverse sample of dust-free stellar systems (globular clusters, dwarf and giant early-type galaxies) which have metallicities that span
Groves, Brent, Norris, Mark A, Querejeta, Miguel, Schinnerer, Eva, Van de Ven, Glenn, van der Wel, Sharon Meidt   +5 more
core   +2 more sources

Applications of Stellar Population Synthesis in the Distant Universe

Galaxies, 2020
Comparison with artificial galaxy models is essential for translating the incomplete and low signal-to-noise data we can obtain on astrophysical stellar populations to physical interpretations which describe their composition, physical properties ...
Elizabeth R. Stanway
doaj   +1 more source

Multiple Populations in Star Clusters

Universe, 2022
We review the multiple population (MP) phenomenon of globular clusters (GCs): i.e., the evidence that GCs typically host groups of stars with different elemental abundances and/or distinct sequences in photometric diagrams.
Antonino P. Milone, Anna F. Marino
doaj   +1 more source

DSPS: Differentiable stellar population synthesis

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Models of stellar population synthesis (SPS) are the fundamental tool that relates the physical properties of a galaxy to its spectral energy distribution (SED). In this paper, we present DSPS: a python package for SPS. All of the functionality in DSPS is implemented natively in the JAX library for automatic differentiation, and
Andrew P Hearin, Jonás Chaves-Montero, Alex Alarcon, Matthew R Becker, Andrew Benson   +4 more
openaire   +2 more sources

On surface brightness fluctuations: probabilistic and statistical bases I: Stellar population and theoretical SBF

, 2008
This work aims to provide a theoretical formulation of Surface Brightness Fluctuations (SBF) in the framework of probabilistic synthesis models, and to distinguish between the different distributions involved in the SBF definition.
Ajhar, Blakeslee, Brocato, Bruzual, Buzzoni, Buzzoni, Cantiello, Cerviño, Cerviño, Cerviño, Cerviño, Cerviño, Cerviño, Cioni, Cioni, Faber, Fagiolini, Gilfanov, Girardi, Jensen, L. Jamet, Lançon, Liu, M. Cerviño, Mei, Patrick, Raimondo, Spinrad, Tinsley, Tonry, Tonry, Tonry, Tuntsov, V. Luridiana, Worthey   +34 more
core   +1 more source

Stellar Populations Across cD Galaxies [PDF]

Proceedings of the International Astronomical Union, 2006
Abstract We present preliminary long-slit spectroscopy of a sample of nearby cD galaxies recently observed with the William Herschel and GEMINI North and South Telescopes. So far, we have accumulated data for 27 cDs. More is being observed with the GEMINI telescopes, to create a statistically significant sample.
Loubser, S, Sansom, A, Soechting, I
openaire   +2 more sources

Hubble Space Telescope Imaging of the Ultra-Compact High Velocity Cloud AGC 226067: A stripped remnant in the Virgo Cluster

, 2017
We analyze the optical counterpart to the ultra-compact high velocity cloud AGC 226067, utilizing imaging taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope.
Adams, E. A. K., Caldwell, N., Crnojević, D., Guhathakurta, P., Kenney, J., Randall, S., Sand, D. J., Seth, A. C., Simon, J. D., Spekkens, K., Strader, J., Toloba, E., Willman, B.   +12 more
core   +1 more source

The red stellar population in NGC 1569 [PDF]

, 2000
We present HST NICMOS photometry of the resolved stellar population in NGC 1569. The CMD in the F110W and F160W photometric bands contains ~2400 stars with a formal photometric error < 0.1 mag down to J~23.5 and H~22.5.
A. Aloisi, A. Nota, Babul A., Claus Leitherer, Cole S., E. Diolaiti, Fagotto F., Fagotto F., G. Parmeggiani, Greve A., Israel F. P., Israel F. P., Kauffmann G., L. Greggio, L. Origlia, Legrand F., M. Clampin, M. Tosi, Melnick J., Moller C. S., Papaderos P., Prada F., Stil J. M., Taylor C. L., Tomita A., Vallenari A.   +25 more
core   +2 more sources

A study of stellar population of intermediate-age globular cluster NGC 2249

Results in Physics, 2020
The Large Magellanic Cloud (LMC) star cluster NGC 2249 has been found to exhibit an extended main-sequence turn-off (eMSTO) in the color-magnitude diagram (CMD) derived from the data of the Hubble Space Telescope (HST).
Zhongmu Li, Rainer Spurzem, Caiyan Mao, Yingxin Ma, Yangyang Deng   +4 more
doaj   +1 more source