Results 71 to 80 of about 171,691 (281)

Orion Revisited - I. The massive cluster in front of the Orion Nebula Cluster

, 2012
The aim of this work is to characterize the stellar population between Earth and the Orion A molecular cloud where the well known star formation benchmark Orion Nebula Cluster (ONC) is embedded.
Alves, J., Bouy, H.
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Alpha Element Populations Among Local Halo Stars

The Astronomical Journal, 2023
Previous studies have shown that the halo of the Milky Way galaxy is made up of two distinct stellar populations, one from dissipative collapse and the other accreted.
Michael V. Reinhard, John B. Laird
doaj   +1 more source

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

Monthly Notices of the Royal Astronomical Society, 2019
19 pages, 17 figures, accepted for publication in ...
Junqiang Ge, Shude Mao, Youjun Lu, Michele Cappellari, Renbin Yan   +4 more
openaire   +3 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

The Mass of the Vela Pulsar Progenitor and the Age of the Vela-Puppis Complex

The Astrophysical Journal
The association of the Vela Pulsar with the Vela Supernova Remnant has long supported the hypothesis that core-collapse supernovae yield neutron stars, but its surrounding stellar population now offers new insights into progenitor evolution.
Jeremiah W. Murphy, Andrés F. Barrientos, René Andrae, Joseph Guzman, Benjamin F. Williams, Julianne J. Dalcanton, Brad Koplitz   +6 more
doaj   +1 more source

Single Stellar Populations [PDF]

Symposium - International Astronomical Union, 1999
To determine metallicity and age distributions of globular clusters (GCs) in distant galaxies–now accessible, e.g. to Keck spectroscopy–it is important to have reliable calibrations of the color-metallicity, color-age, and index-metallicity relations.
O.M. Kurth, U. Fritze, V. Alvensleben, K.J. Fricke   +3 more
openaire   +1 more source

Stellar populations of classical and pseudo-bulges for a sample of isolated spiral galaxies

, 2011
In this paper we present the stellar population synthesis results for a sample of 75 bulges in isolated spiral Sb-Sc galaxies, using the spectroscopic data from the Sloan Digital Sky Survey and the STARLIGHT code.
A. Durbala, A. Mateus, A. Pizzella, A.W. Graham, A.W. Graham, C.A. Tremonti, D.A. Gadotti, D.A. Gadotti, D.B. Fisher, D.B. Fisher, D.B. Fisher, D.J. Schlegel, E.E. Salpeter, F. Barbera La, G. Bruzual, G. Kauffmann, J. Gorgas, J. Kormendy, J. Kormendy, J. Kormendy, J.-F. Borgne Le, J.A. Cardelli, J.K. Adelman-McCarthy, K.N. Abazajian, L. Morelli, L. Verdes-Montenegro, L.A. MacArthur, N.V. Asari, P. Jablonka, Ph. Héraudeau, Ph. Prugniel, R. Bender, R. Bender, R. Cid Fernandes, R. Cid Fernandes, R.B. Larson, S.M. Faber, V.E. Karachentseva, Yinghe Zhao   +38 more
core   +1 more source

The stellar populations of early-type galaxies -- II. The effects of environment and mass [PDF]

, 2011
The degree of influence that environment and mass have on the stellar populations of early-type galaxies is uncertain. In this paper we present the results of a spectroscopic analysis of the stellar populations of early-type galaxies aimed at addressing ...
Arimoto, Balogh, Bekki, Bender, Bernardi, Bernardi, Bernardi, Bernardi, Blanton, Boselli, Bressan, Burstein, Burstein, Caldwell, Cardiel, Clemens, Colless, Colless, Collobert, Couch, Cowie, Craig D. Harrison, Croton, Davies, Davis, De Lucia, Denicoló, Dressler, Eggen, Faber, Fisher, Fisher, Gallazzi, Gorgas, Graves, Greggio, Gunn, Gómez, Haines, Harald Kuntschner, Harrison, Hashimoto, Jones, Jørgensen, Jørgensen, Jørgensen, Kauffmann, Kauffmann, Kauffmann, Kelson, Koeppen, Kuntschner, Kuntschner, Kuntschner, Larson, Larson, Larson, Lewis, Mastropietro, Matković, Matthew Colless, Mehlert, Merlin, Michael B. Pracy, Moore, Nelan, Norberg, Ogando, Pipino, Poggianti, Postman, Press, Proctor, Proctor, Proctor, Roberto De Propris, Romeo, Sarzi, Schindler, Searle, Smith, Smith, Sánchez-Blázquez, Terlevich, Thomas, Thomas, Thomas, Thomas, Thomas, Tinsley, Toomre, Trager, Trager, Trager, Treu, Treu, Treu, Treu, Treu, van der Wel, van der Wel, van Dokkum, van Dokkum, Warrick J. Couch, White, Worthey, Worthey, Worthey, Worthey, Worthey, Ziegler   +110 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source