Results 31 to 40 of about 1,168,780 (297)

Spectroscopic substellar initial mass function of NGC 2244

, 2023
Funding: V.A-A., K.M. and K.K. acknowledge funding by the Science and Technology Foundation of Portugal (FCT), grants No. IF/00194/2015, PTDC/FIS-AST/28731/2017, UIDB/00099/2020, SFRH/BD/143433/2019 and PTDC/FIS-AST/7002/2020. R.S. acknowledges financial
Bayo, A., Barač, R., Mužić, K., Scholz, A., Bouy, H., Almendros-Abad, V., Peña Ramírez, K., Moitinho, A., Ascenso, J., Kubiak, K., Schöedel, R., Jayawardhana, R., Brčić, P.   +12 more
core   +2 more sources

A theory of the IMF

, 2014
[[abstract]]Magnetic fields play a prominent role in the formation of stars in giant molecular clouds (GMCs). They explain the low efficiency of star formation in the Galaxy. They yield the mechanism underlying jets from young stellar objects and bipolar
Shu, F.H.;Li, Z.Y.;Allen, A.
core   +1 more source

ZFIRE : using Hα equivalent widths to investigate the in situ initial mass function at z ∼ 2

, 2017
We use the ZFIRE (http://zfire.swinburne.edu.au) survey to investigate the high-mass slope of the initial mass function (IMF) for a mass-complete (log(10)(M-*/M-circle dot) similar to 9.3) sample of 102 star-forming galaxies at z similar to 2 using their
David Fisher, Cowley, M., Glazebrook, Karl, Tomczak, A., Cowley, Michael, Spitler, Lee, Straatman, Caroline, Kacprzak, Glenn G., Karl Glazebrook, Fisher, D., Lisa J. Kewley, Ivo Labbe, Tran, Kim-Vy, Tran, K.-V., Kewley, L.J., Adam Tomczak, Themiya Nanayakkara, Glazebrook, K., Glenn G. Kacprzak, Tomczak, Adam, Yuan, Tiantian, Yuan, T., Nanayakkara, W.T.T., Alcorn, L., Kim-Vy Tran, Leo Alcorn, Michael Cowley, Kacprzak, G.G., Kewley, Lisa J., Kacprzak, Glenn G, Caroline Straatman, Tiantian Yuan, Labbé, I.F.L., Spitler, L., Alcorn, Leo, Straatman, C.M.S., Labbe, Ivo, Alcorn, Lee, Fisher, David, Kewley, Lisa J, Lee Spitler, Nanayakkara, Themiya, Kim-Vy Tran, Kim-Vy Tran   +42 more
core   +1 more source

Gas removal and the initial mass function of star clusters

, 2009
We explore how the expulsion of gas from star-forming cores due to supernova explosions affects the shape of the initial cluster mass function, that is, the mass function of star clusters when cluster infant weight-loss triggered by gas expulsion is over.
Parmentier, Geneviève, Kroupa, Pavel, Baumgardt, Holger, Goodwin, Simon P.   +3 more
core   +1 more source

The relation between accretion rates and the initial mass function in hydrodynamical simulations of star formation

, 2014
TM acknowledges funding via the ANR 2010 JCJC 0501 1 ‘DESC’ (Dynamical Evolution of Stellar Clusters). IAB acknowledges funding from the European Research Council for the FP7 ERC advanced grant project ECOGAL.We analyse a hydrodynamical simulation of ...
Maschberger, Th., Bonnell, I.A., Clarke, C.J., Bonnell, I. A., Moraux, E., Clarke, C. J., Maschberger, T.   +6 more
core   +1 more source

The Dawes Review 8: Measuring the Stellar Initial Mass Function

, 2018
The birth of stars and the formation of galaxies are cornerstones of modern astrophysics.While much is known about how galaxies globally and their stars individually form and evolve, one fundamental property that affects both remains elusive.
Hopkins, Andrew M. (R20610)
core   +1 more source

Evidence for Universality in the Initial Planetesimal Mass Function [PDF]

The Astrophysical Journal Letters, 2017
Abstract Planetesimals may form from the gravitational collapse of dense particle clumps initiated by the streaming instability. We use simulations of aerodynamically coupled gas–particle mixtures to investigate whether the properties of planetesimals formed in this way depend upon the sizes of the particles that participate in the ...
Jacob B. Simon, Philip J. Armitage, Andrew N. Youdin, Rixin Li   +3 more
openaire   +2 more sources

A nonextensive insight into the stellar initial mass function [PDF]

EPL (Europhysics Letters), 2019
the present paper, we propose that the stellar initial mass distributions as known as IMF are best fitted by $q$-Weibulls that emerge within nonextensive statistical mechanics. As a result, we show that the Salpeter's slope of $\sim$2.35 is replaced when a $q$-Weibull distribution is used.
de Freitas, D. B., Eufrasio, R. T., Nepomuceno, M. M. F., da Silva, J. R. P.   +3 more
openaire   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Venous Thromboembolism in Pediatric Bone Sarcoma Patients: A 10‐Year, Single‐Institution Experience Encompassing the COVID‐19 Pandemic

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Osteosarcoma (OS) and Ewing sarcoma (EWS) are the most common primary bone cancers in children, but acute thrombosis is poorly characterized in this population. Our study evaluated the rates of venous thromboembolism (VTE) and associated risk factors in pediatric patients with bone sarcomas treated over a 10‐year period encompassing
Sarah Kappa, Shou Xu, Mark Zobeck, Sarah E. Sartain, Nino Rainusso, Lisa Wang, Nicole Montgomery, Paige Wheaton, Sarah Whittle   +8 more
wiley   +1 more source