Results 101 to 110 of about 85,801 (378)

The Colors of Dwarf Elliptical Galaxy Globular Cluster Systems, Nuclei and Stellar Halos

, 2004
We present the results of a Hubble Space Telescope WFPC2 F555W and F814W survey of 69 dwarf elliptical galaxies (dEs) in the Virgo and Fornax Clusters and Leo Group.
Arimoto N., Babul A., Binggeli B., Bryan W. Miller, Drinkwater M. J., Fall S. M., Grebel E., Henry C. Ferguson, Jennifer M. Lotz, Kauffmann G., Thomas D.   +10 more
core   +1 more source

On the possible generation of the young massive open clusters Stephenson2 and BDSB122 by Omega Centauri [PDF]

, 2009
A massive objects such as a globular cluster passing through the disk of a galaxy can trigger star formation. We test the hypothesis that the most massive globular cluster in the Galaxy, $\omega$ Centauri, which crossed the disk approximately $24\pm2 ...
Allen, Bekki, Bica, Bica, Bica, Brand, C. Bonatto, Davies, Dias, Dinescu, Drimmel, Dutra, E. Bica, Eisenhauer, Elmegreen, Elmegreen, Figer, Flynn, G. M. Salerno, Ghez, Hanson, Hernquist, I. Rodrigues, Johnston, Larsen, Levy, Lépine, McKee, Mirabel, Miyamoto, Mizutani, Momany, Nakaya, Ortolani, Ortolani, Paczynski, Rees, Russeil, Santos, Soares, Soria, Soria, Stephenson, Struck-Marcell, Struck-Marcell, Trippe, Vande Putte, Vlemmings, Wallin, Whitworth   +49 more
core   +2 more sources

Predictions for Self-Pollution in Globular Cluster Stars [PDF]

The Astrophysical Journal, 2001
Full evolutionary models have been built to follow the phases of asymptotic giant branch evolution with mass loss for metal mass fractions from Z=0.0002 to Z=0.004. For the first time, we find that temperatures close to or even larger than 10^8 K are achieved at low Z; the full CNO cycle operates at the base of the envelope, the Oxygen abundance for ...
Italo Mazzitelli, Raffaele Gratton, Francesca D'Antona, Paolo Ventura   +3 more
openaire   +4 more sources

Mechanistic basis for inhibition of the extended‐spectrum β‐lactamase GES‐1 by enmetazobactam and tazobactam

FEBS Letters, EarlyView.
Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer, Philip Hinchliffe, Marko Hanževački, Christopher R. Bethel, Catherine L. Tooke, Marc W. Van der Kamp, Krisztina M. Papp‐Wallace, Robert A. Bonomo, Stuart Shapiro, Adrian J. Mulholland, James Spencer   +10 more
wiley   +1 more source

A Systematic Analysis of Star Cluster Disruption by Tidal Shocks. II. Predicting Star Cluster Dissolution Rates from a Time-series Analysis of Their Tidal Histories

The Astrophysical Journal
Most of the dynamical mass loss from star clusters is thought to be caused by the time variability of the tidal field (“tidal shocks”). Systematic studies of tidal shocks have been hampered by the fact that each tidal history is unique, implying both a ...
Jeremy J. Webb, Marta Reina-Campos, J. M. Diederik Kruijssen   +2 more
doaj   +1 more source

Redshift Evolution of the Black Hole Merger Rate from Globular Clusters [PDF]

Astrophysical Journal, 2018
As the sensitivity of current and future gravitational-wave detectors improves, it will become possible to measure the evolution of the binary black hole merger rate with redshift.
C. Rodriguez, A. Loeb
semanticscholar   +1 more source

A census of ultra-compact dwarf galaxies in nearby galaxy clusters [PDF]

, 2010
Ultra-compact dwarf galaxies (UCDs) are predominatly found in the cores of nearby galaxy clusters. Besides the Fornax and Virgo cluster, UCDs have also been confirmed in the twice as distant Hydra I and Centaurus clusters.
Bekki, Côté, Dabringhausen, Drinkwater, Fellhauer, Harris, Hasegan, Hilker, Jones, Jordán, Lotz, M. Hilker, Mieske, Mieske, Mieske, Mieske, Misgeld, Misgeld, Peng, Phillipps, Schuberth   +20 more
core   +2 more sources

Imeglimin attenuates liver fibrosis by inhibiting vesicular ATP release from hepatic stellate cells

FEBS Letters, EarlyView.
Imeglimin, at clinically relevant concentrations, inhibits vesicular ATP accumulation and release from hepatic stellate cells, thereby attenuating purinergic signaling and reducing fibrogenic activation. This mechanism reveals a newly identified antifibrotic action of imeglimin beyond glycemic control.
Seiji Nomura, Lixiang Wang, Nao Hasuzawa, Ayako Nagayama, Sawako Moriyama, Kenji Ashida, Yoshinori Moriyama, Masatoshi Nomura, Ken Yamamoto   +8 more
wiley   +1 more source

The Stellar Initial Mass Function of Early Dark Matter–free Gas Objects

The Astrophysical Journal Letters
Among the remarkable strides made by JWST is the discovery of the earliest star clusters found to date. These have been proposed as early progenitors of globular clusters, which are known to come from the early stages of star formation in the Universe ...
William Lake, Michael Y. Grudić, Smadar Naoz, Naoki Yoshida, Claire E. Williams, Blakesley Burkhart, Federico Marinacci, Mark Vogelsberger, Avi Chen   +8 more
doaj   +1 more source

Constraining globular cluster formation through studies of young massive clusters – IV. Testing the fast rotating massive star scenario [PDF]

, 2014
One of the leading models for the formation of multiple stellar populations within globular clusters is the "Fast Rotating Massive Star" (FRMS) scenario, where the ejecta of rapidly rotating massive stars is mixed with primordial material left over from ...
N. Bastian, K. Hollyhead, I. Cabrera-Ziri   +2 more
semanticscholar   +1 more source