Results 91 to 100 of about 5,989,239 (352)
Dust and Gas as Seeds for Metal-Poor Star Formation [PDF]
, 2008 I address the issue of dust and gas as seeds for metal-poor star formation by reviewing what we know about star formation in nearby dwarf galaxies and its relationship to the gas and dust.
Böttner +21 more
core +1 more source
This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N. Schneider) to be published by Elsevier as a Reference Module.
Kuruwita, Rajika +2 more
openaire +2 more sources
Dendritic cells steering antigen and leukocyte traffic in lymph nodes
FEBS Letters, EarlyView.Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta +3 more
wiley +1 more source
The Astrophysical JournalThe formation of the massive stars, and in particular, the role that the magnetic fields play in their early evolutionary phase is still far from being completely understood.
Luis A. Zapata +26 more
doaj +1 more source
Clustered star formation as a natural explanation of the Halpha cutoff in disc galaxies [PDF]
Nature 455:641-643,2008, 2009 Star formation is mainly determined by the observation of H$\alpha$ radiation which is related to the presence of short lived massive stars. Disc galaxies show a strong cutoff in H$\alpha$ radiation at a certain galactocentric distance which has led to the conclusion that star formation is suppressed in the outer regions of disc galaxies.
arxiv +1 more source
When feedback fails: The scaling and saturation of star formation efficiency [PDF]
, 2016 We present a suite of 3D multiphysics MHD simulations following star formation in isolated turbulent molecular gas discs ranging from 5 to 500 parsecs in radius.
M. Y. Grudi'c +5 more
semanticscholar +1 more source
The specific star formation rate of high redshift galaxies: the case for two modes of star formation
, 2010 We study the specific star formation rate (SSFR) and its evolution at $z\gtsim 4$, in models of galaxy formation, where the star formation is driven by cold accretion flows.
Antonuccio-Delogu +54 more
core +1 more source
Star Formation History in Barred Spiral Galaxies. AGN Feedback [PDF]
, 2017 We present a numerical study of the impact of AGN accretion and feedback on the star formation history of barred disc galaxies. Our goal is to determine whether the effect of feedback is positive (enhanced star formation) or negative (quenched star ...
Ellison, Sara L. +4 more
core +2 more sources
Masers and star formation [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractRecent observational and theoretical advances concerning astronomical masers in star forming regions are reviewed. Major masing species are considered individually and in combination. Key results are summarized with emphasis on present science and future prospects.
openaire +4 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