Results 91 to 100 of about 2,879,280 (414)
Inflaton clusters and inflaton stars [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 In a broad class of scenarios, inflation is followed by an extended era of matter-dominated expansion during which the inflaton condensate is nonrelativistic on subhorizon scales. During this phase density perturbations grow to the point of nonlinearity and collapse into bound structures.
Jens C. Niemeyer +2 more
openaire +4 more sources
The role of the central stellar cluster in active galactic nuclei. I. Semi-analytical model [PDF]
, 2002 The subject of the paper is the role of the massive stellar cluster in the activity phenomenon and in the structure of active galactic nuclei. We introduce a simple model of stellar dynamics in the internal part of the cluster, which allows us to include
Czerny, B., Vilkoviskij, E. Y.
core +2 more sources
Proceedings of the International Astronomical Union, 2009 AbstractStar clusters are often used as tracers of major star-formation events in external galaxies as they can be studied out to much greater distances than individual stars. It is vital to understand their evolution if they are used to derive, for example, the star-formation history of their host galaxy. More specifically, we want to know how cluster
openaire +4 more sources
Flare Stars in Star Clusters and Associations [PDF]
Symposium - International Astronomical Union, 1975 The study of stellar evolution can be undertaken either from a purely theoretical point of view or from a more observational approach. The present standpoint is the second one. It starts from the concepts of stellar evolution in associations and open clusters and from stellar flare activity.
V. A. Ambartsumian, L. V. Mirzoian
openaire +2 more sources
The dual nature of TDC – bridging dendritic and T cells in immunity
FEBS Letters, EarlyView.TDC are hematopoietic cells combining dendritic and T cell features. They reach secondary lymphoid organs (SLOs) and peripheral organs (liver and lungs) after FLT3‐dependent development in the bone marrow and maturation in the thymus. TDC are activated and enriched in SLOs upon viral infection, suggesting that they might play unique immune roles, since
Maria Nelli, Mirela Kuka
wiley +1 more source
Do O-stars form in isolation? [PDF]
, 2007 Around 4% of O-stars are observed in apparent isolation, with no associated cluster, and no indication of having been ejected from a nearby cluster. We define an isolated O-star as a star > 17.5 M_\odot in a cluster with total mass 10 M_\odot) stars.
Bastian +25 more
core +3 more sources
Distribution of stars in clusters [PDF]
Astronomische Nachrichten, 1897 n ...
openaire +2 more sources
Formation of supermassive stars in the first star clusters
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT The formation of supermassive stars is believed to be an essential intermediate step for the formation of the massive black hole seeds that become the supermassive black holes powering the quasars observed in the early Universe.
Bastián Reinoso +4 more
openaire +3 more sources
FEBS Letters, EarlyView.In vivo IL‐10 produced by tissue‐resident tolDC is involved in maintaining/inducing tolerance. Depending on the agent used for ex vivo tolDC generation, cells acquire common features but prime T cells towards anergy, FOXP3+ Tregs, or Tr1 cells according to the levels of IL‐10 produced. Ex vivo‐induced tolDC were administered to patients to re‐establish/
Konstantina Morali +3 more
wiley +1 more source
JWST Observations of Starbursts: Massive Star Clusters in the Central Starburst of M82
The Astrophysical Journal LettersWe present a near-infrared (NIR) candidate star cluster catalog for the central kiloparsec of M82 based on new JWST NIRCam images. We identify star cluster candidates using the F250M filter, finding 1357 star cluster candidates with stellar masses >10 ^4
Rebecca C. Levy +27 more
doaj +1 more source