Results 71 to 80 of about 7,284,804 (245)

Coronal Structure of Low-Mass Stars

open access: yes, 2012
We investigate the change in stellar magnetic topology across the fully-convective boundary and its effects on coronal properties. We consider both the magnitude of the open flux that influences angular momentum loss in the stellar wind and X-ray ...
Aline Vidotto   +67 more
core   +1 more source

The triggering of starbursts in low-mass galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
Strong bursts of star formation in galaxies may be triggered either by internal or external mechanisms. We study the distribution and kinematics of the HI gas in the outer regions of 18 nearby starburst dwarf galaxies, that have accurate star-formation histories from HST observations of resolved stellar populations. We find that starburst dwarfs show a
Federico Lelli   +4 more
openaire   +3 more sources

Star Formation as Seen by Low Mass Stars

open access: yesActa Polytechnica CTU Proceedings, 2014
Using the Hubble Space Telescope (HST) we have characterised and compared the physical properties of a large sample of pre-main sequence (PMS) stars spanning a wide range of masses (0:5 - 4Mʘ), metallicities (0:1 - 1 Zʘ) and ages (0:5 - 30 Myr).
Nino Panagia, Guido De Marchi
doaj   +1 more source

Metallicity of low-mass stars in Orion [PDF]

open access: yesAstronomy & Astrophysics, 2009
Determining the metal content of low-mass members of young associations provides a tool that addresses different issues, such as triggered star formation or the link between the metal-rich nature of planet-host stars and the early phases of planet formation.
Valentina D'Orazi   +6 more
openaire   +4 more sources

The low-mass Initial Mass Function in the young cluster NGC 6611 [PDF]

open access: yes, 2008
NGC 6611 is the massive young cluster (2-3 Myr) that ionises the Eagle Nebula. We present very deep photometric observations of the central region of NGC 6611 obtained with the Hubble Space Telescope and the following filters: ACS/WFC F775W and F850LP ...
Jeffries, R. D.   +2 more
core   +2 more sources

Low energy effects of neutrino masses [PDF]

open access: yesJournal of High Energy Physics, 2007
modifications: couplings in appendix B, formulas (121)-(122) on rare leptons decays (to match with published version) and consequently bounds in table ...
Thomas Hambye   +5 more
openaire   +4 more sources

Stellar Mass Calibrations for Local Low-mass Galaxies

open access: yesThe Astrophysical Journal
The stellar masses of galaxies are measured from integrated light via several methods—however, few of these methods were designed for low-mass ( M _⋆ ≲ 10 ^8 M _⊙ ) “dwarf” galaxies, whose properties (e.g., stochastic star formation, low metallicity ...
Mithi A. C. de los Reyes   +12 more
doaj   +1 more source

Resolving the low mass puzzle of $$\Lambda _c(2940)^+$$ Λc(2940)+

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
For the long standing low mass puzzle of $$\Lambda _c(2940)^+$$ Λc(2940)+ , we propose an unquenched picture. Our calculation explicitly shows that the mass of the $$\Lambda _c(2P,3/2^-)$$ Λc(2P,3/2-) state can be lowered down to be consistent with the ...
Si-Qiang Luo   +3 more
doaj   +1 more source

The clinical eficacy of vitamin D in children with primary low bone mass [PDF]

open access: yesPediatric Endocrinology, Diabetes and Metabolism, 2011
Introduction: Vitamin D suplementation in prevention and treatment of osteoporosis is a widely accepted standard, but the latest studies show the necessity of increasing the intake of this vitamin to keep its concetration on higher levels ?
Danuta Chlebna-Sokół, Jolanta Karalus
doaj  

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