Results 101 to 110 of about 87,149 (376)

The Next Generation Virgo Cluster Survey. XXIII. Fundamentals of Nuclear Star Clusters over Seven Decades in Galaxy Mass [PDF]

Astrophysical Journal, 2018
Using deep, high-resolution optical imaging from the Next Generation Virgo Cluster Survey, we study the properties of nuclear star clusters (NSCs) in a sample of nearly 400 quiescent galaxies in the core of Virgo with stellar masses 105 ≲ / ≲ 1012.
R. Sánchez-Janssen, P. Côté, L. Ferrarese, E. Peng, J. Roediger, J. Blakeslee, E. Emsellem, E. Emsellem, T. Puzia, C. Spengler, James E. Taylor, K. Alamo-Martínez, A. Boselli, M. Cantiello, J. Cuillandre, P. Duc, P. Duc, P. Durrell, S. Gwyn, L. MacArthur, A. Lançon, Sungsoon Lim, Chengze Liu, S. Mei, S. Mei, S. Mei, B. Miller, R. Muñoz, J. C. Mihos, S. Paudel, M. Powalka, E. Toloba   +31 more
semanticscholar   +1 more source

Field star diffusion in globular clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 1992
A new interaction of globular clusters with galactic field stars, the deceleration (by dynamical friction) of high-velocity field stars diffusing through individual globular clusters, is investigated. This frictional interaction contributes to cluster heating and, in conjunction with disc shocking and other mechanisms, helps to reflate the evolution of
W. Peng, J. C. Weisheit
openaire   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

The Spatial Distribution of Intracluster Globular Clusters in the Fornax Cluster

The Astrophysical Journal
We investigate the spatial distribution of the intracluster globular clusters (ICGCs) detected in the core of the Fornax galaxy cluster. By separately modeling different components of the observed population of globular clusters (GCs), we confirm the ...
Raffaele D’Abrusco, Marco Mirabile, Michele Cantiello, Enrica Iodice, Avinash Chaturvedi, Michael Hilker, Giuseppina Fabbiano, Marilena Spavone, Maurizio Paolillo   +8 more
doaj   +1 more source

On the efficiency of field star capture by star clusters

, 2007
An exciting recent finding regarding scaling relations among globular clusters is the so-called 'blue tilt': clusters of the blue sub-population follow a trend of redder colour with increasing luminosity.
Baranov, Baumgardt, Bedin, Bekki, Bekki, Côté, D'Antona, de Oliveira Filho, Dopita, Fellhauer, Frank, Gnedin, H. Baumgardt, Harris, Jordán, Jordán, Lamers, Mieske, Mints, Morgan, Parmentier, Parmentier, Peng, Piotto, Prantzos, Recchi, Romanowsky, S. Mieske, Smith, Spitler, Strader, Thoul   +31 more
core   +1 more source

Detailed Abundances of 15 Stars in the Metal-Poor Globular Cluster NGC 4833 [PDF]

, 2015
We have observed 15 red giant stars in the relatively massive, metal-poor globular cluster NGC 4833 using the Magellan Inamori Kyocera Echelle spectrograph at Magellan.
Roederer, Ian U., Thompson, Ian B.
core   +1 more source

Multiple Stellar Populations in Globular Clusters [PDF]

Annual Review of Astronomy and Astrophysics, 2017
Globular clusters (GCs) exhibit star-to-star variations in specific elements (e.g., He, C, N, O, Na, Al) that bear the hallmark of high-temperature H-burning. These abundance variations can be observed spectroscopically and also photometrically, with the
N. Bastian, C. Lardo
semanticscholar   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

oMEGACat. III. Multiband Photometry and Metallicities Reveal Spatially Well-mixed Populations within ω Centauri’s Half-light Radius

The Astrophysical Journal
ω Centauri, the most massive globular cluster in the Milky Way, has long been suspected to be the stripped nucleus of a dwarf galaxy that fell into the Galaxy a long time ago.
M. S. Nitschai, N. Neumayer, M. Häberle, C. Clontz, A. C. Seth, A. P. Milone, M. Alfaro-Cuello, A. Bellini, S. Dreizler, A. Feldmeier-Krause, T.-O. Husser, N. Kacharov, S. Kamann, M. Latour, M. Libralato, G. van de Ven, K. Voggel, Z. Wang   +17 more
doaj   +1 more source

Eccentric black hole mergers via three-body interactions in young, globular, and nuclear star clusters [PDF]

, 2023
Marco Dall’Amico, Michela Mapelli, Stefano Torniamenti, Manuel Arca Sedda   +3 more
openalex   +1 more source