Results 71 to 80 of about 7,284,804 (245)
Coronal Structure of Low-Mass Stars
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]
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
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]
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]
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]
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
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)+
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]
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