Results 11 to 20 of about 3,156,291 (263)

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   +3 more sources

Searches for low-mass dimuon resonances [PDF]

open access: yesJournal of High Energy Physics, 2020
Searches are performed for a low-mass dimuon resonance, X, produced in proton-proton collisions at a center-of-mass energy of 13 TeV, using a data sample corresponding to an integrated luminosity of 5.1 fb −1 and collected with the LHCb detector.
The LHCb collaboration   +973 more
doaj   +26 more sources

A Discontinuity in the Low‐Mass Initial Mass Function [PDF]

open access: yesThe Astrophysical Journal, 2007
The origin of brown dwarfs (BDs) is still an unsolved mystery. While the standard model describes the formation of BDs and stars in a similar way recent data on the multiplicity properties of stars and BDs show them to have different binary distribution functions.
Thies, Ingo, Kroupa, Pavel
openaire   +2 more sources

LOW-MASS DIFFRACTION AT THE LHC [PDF]

open access: yesModern Physics Letters A, 2011
The expected resonance structure for low-mass single diffractive states is predicted from a Regge-dual model elaborated earlier by the present authors. Estimates for the observable low-mass single diffraction dissociation (SDD) cross-sections and efficiencies for single diffractive events simulated by PYTHIA 6.2 as a function of the diffractive mass ...
JENKOVSZKY, L. L.   +3 more
openaire   +3 more sources

THE FREQUENCY OF LOW-MASS EXOPLANETS [PDF]

open access: yesThe Astrophysical Journal, 2009
We report first results from the Anglo-Australian Telescope Rocky Planet Search - an intensive, high-precision Doppler planet search targeting low-mass exoplanets in contiguous 48 night observing blocks. On this run we targeted 24 bright, nearby and intrinsically stable Sun-like stars selected from the Anglo-Australian Planet Search's main sample ...
O'Toole, S. J.   +7 more
openaire   +3 more sources

A Quadrupole mass spectrometer for resolution of low mass isotopes [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2010
The qualitative and quantitative identification of low mass isotopes in the mass range 1-6 u poses certain difficulties when attempting to achieve the required resolution with an instrument suitable for deployment within a process environment. Certain adjacent species present in the process sample (HT and D(2)) require a resolution greater than 930 to ...
Sreekumar, Jeyan   +4 more
openaire   +2 more sources

The metallicity–period–mass diagram of low-mass exoplanets [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
The number of exoplanet detections continues to grow following the development of better instruments and missions. Key steps for the understanding of these worlds comes from their characterization and its statistical studies. We explore the metallicity-period-mass diagram for known exoplanets by using an updated version of The Stellar parameters for ...
Sérgio G Sousa   +16 more
openaire   +3 more sources

Low-energy electron ionization mass spectrometer for efficient detection of low mass species [PDF]

open access: yesReview of Scientific Instruments, 2021
The design of a high-efficiency mass spectrometer is described, aimed at residual gas detection of low mass species using low-energy electron impact, with particular applications in helium atom microscopy and atomic or molecular scattering. The instrument consists of an extended ionization volume, where electrons emitted from a hot filament are ...
M. Bergin   +7 more
openaire   +4 more sources

Mass-radius relation of low and very low-mass stars revisited with the VLTI [PDF]

open access: yesAstronomy & Astrophysics, 2009
12 pages. Accepted on 16/05/2009 (A&A)
Demory, B.-O.   +14 more
openaire   +4 more sources

Low Bone Mass and Klinefelter Syndrome

open access: yesIndian Journal of Endocrinology and Metabolism, 2019
Kalyani Sridharan   +2 more
doaj   +3 more sources

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