Results 51 to 60 of about 1,022,915 (352)

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., Kawata, Daisuke, Martel, Hugo, Robichaud, Fidèle, Williamson, David   +4 more
core   +2 more sources

A giant solution to the disk mass budget problem of planet formation

Frontiers in Astronomy and Space Sciences
Understanding how dust evolves in protoplanetary disks is crucial to constraining the initial conditions of planet formation. The apparent “mass budget problem”, which stems from the comparison of the observed disk masses to the ones inferred for ...
Sofia Savvidou, Sofia Savvidou
doaj   +1 more source

Star formation

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, Tychoniec, Łukasz, Federrath, Christoph   +2 more
openaire   +2 more sources

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior, Edmara Bazoni Soares Maia, Soad Fuentes‐Alabí, Courtney E. Sullivan, Monnie Abraham, Mauricio Maza, Liliana Vásquez Ponce, Regina Aparecida Garcia Lima   +7 more
wiley   +1 more source

A chemical perspective on planet formation in reduced systems

Astronomy & Astrophysics
Context. The relative abundances of refractory elements in planets are widely assumed to reflect those of their host stars. However, because elements are classified according to their behaviour in the solar nebula, this implicitly assumes that ...
Zaveri Urja, Wang Haiyang S., Sossi Paolo A.   +2 more
doaj   +1 more source

Early-forming Massive Stars Suppress Star Formation and Hierarchical Cluster Assembly

The Astrophysical Journal, 2023
Feedback from massive stars plays an important role in the formation of star clusters. Whether a very massive star is born early or late in the cluster formation timeline has profound implications for the star cluster formation and assembly processes. We
Sean C. Lewis, Stephen L. W. McMillan, Mordecai-Mark Mac Low, Claude Cournoyer-Cloutier, Brooke Polak, Martijn J. C. Wilhelm, Aaron Tran, Alison Sills, Simon Portegies Zwart, Ralf S. Klessen, Joshua E. Wall   +10 more
doaj   +1 more source

Star Formation Efficiencies and Star Cluster Formation [PDF]

, 2005
6 pages, to appear in ``Starbursts from 30 Doradus to Lyman Break Galaxies'', eds. R. de Grijs, R. M. Gonz\'alez Delgado, Astrophysics & Space Science Library Series, Kluwer (in press)
openaire   +2 more sources

Financial Burden Associated With Hospitalisation Among Families of Childhood Brain Tumours in Australia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Families of children with cancer experience significant financial strain, even with universal healthcare. Indirect costs, such as productivity losses and non‐medical expenses, are rarely included in economic evaluations, and little is known about how effectively financial aid programmes alleviate this burden. Childhood brain tumours
Megumi Lim, Natalie Bradford, David Brain, Sameera Senanayake, Sanjeewa Kularatna, Kate Young, Christine Cashion, Tim Hassall, Susanna Cramb   +8 more
wiley   +1 more source

Formation of cold giant planets around late M dwarfs via core accretion and the fate of inner rocky worlds

Astronomy & Astrophysics
Context. Modeling how cold giant planets form around M dwarfs remains a challenge, both because their protoplanetary disks can lack sufficient mass and because such planets are expected to migrate inward while interacting with the disk.
Sanchez M., van der Marel N., Lambrechts M., Paardekooper S., Miguel Y.   +4 more
doaj   +1 more source

The distribution of local star formation activity as a function of galaxy stellar mass, environment and morphology [PDF]

, 2017
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2017 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.
Hardcastle, M. J., Kaviraj, S., Lofthouse, E. K., Smith, D. J. B.   +3 more
core   +3 more sources