Results 41 to 50 of about 16,047,641 (362)

Low-mass dark matter search using ionization signals in XENON100 [PDF]

open access: yes, 2016
We perform a low-mass dark matter search using an exposure of 30 kg$\times$yr with the XENON100 detector. By dropping the requirement of a scintillation signal and using only the ionization signal to determine the interaction energy, we lowered the ...
E. Aprile   +110 more
semanticscholar   +1 more source

In situ monitoring of phase transformation kinetics under rapid heating of Ti–6Al–4V titanium alloy

open access: yesJournal of Materials Research and Technology, 2022
The phase transformation kinetics of Ti–6Al–4V alloy was studied during rapid heating using in-situ high energy synchrotron diffraction and in-situ electrical resistivity measurement for heating rates varying from 0.03 to 200 °C.s−1.
Andi Idhil Ismail   +3 more
doaj  

Suppression of phase transitions and glass phase signatures in mixed cation halide perovskites

open access: yesNature Communications, 2020
Understanding the underlying physics and improving the performance of mixed lead halide perovskite materials remains a challenge. Here, the authors present experimental and theoretical study of structural phases, phase transitions, and dipolar dynamics ...
Mantas Simenas   +14 more
doaj   +1 more source

SDSS-IV MaNGA: evidence of the importance of AGN feedback in low-mass galaxies [PDF]

open access: yes, 2017
We present new evidence for AGN feedback in a subset of 69 quenched low-mass galaxies ($M_{\star} \lesssim 5\times10^{9}$ M$_{\odot}$, $M_{\rm{r}} > -19$) selected from the first two years of the SDSS-IV MaNGA survey.
S. Penny   +17 more
semanticscholar   +1 more source

Low serum TSH levels are associated with low values of fat-free mass and body cell mass in the elderly

open access: yesScientific Reports, 2021
Previous studies on the association between thyroid function and body composition are conflicting and showed strong differences across age groups. Our aim was to clarify age-specific associations of serum thyroid-stimulating hormone (TSH) levels with ...
Till Ittermann   +7 more
doaj   +1 more source

High Mass Star Formation. II. The Mass Function of Submillimeter Clumps in M17 [PDF]

open access: yesAstrophys.J. 644 (2006) 990-1005, 2006
We have mapped an approximately 5.5 by 5.5 pc portion of the M17 massive star-forming region in both 850 and 450 micron dust continuum emission using the Submillimeter Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT). The maps reveal more than 100 dusty clumps with deconvolved linear sizes of 0.05--0.2 pc and masses of 0 ...
arxiv   +1 more source

Electron-capture and Low-mass Iron-core-collapse Supernovae: New Neutrino-radiation-hydrodynamics Simulations [PDF]

open access: yes, 2017
We present new 1D (spherical) and 2D (axisymmetric) simulations of electron-capture (EC) and low-mass iron-core-collapse supernovae (SN). We consider six progenitor models: the ECSN progenitor from Nomoto; two ECSN-like low-mass low-metallicity iron-core
D. Radice   +4 more
semanticscholar   +1 more source

Hundreds of Low-Mass Active Galaxies in the Galaxy And Mass Assembly (GAMA) Survey [PDF]

open access: yes, 2022
We present an entirely new sample of 388 low-mass galaxies ($M_\star \leq 10^{10} M_\odot$) that have spectroscopic signatures indicating the presence of massive black holes (BHs) in the form of active galactic nuclei (AGNs) or tidal disruption events (TDEs).
arxiv   +1 more source

Is the initial mass function of low surface brightness galaxies dominated by low-mass stars? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
The rotation curves of low surface brightness (LSB) galaxies suggest that they possess significantly higher mass-to-light (M/L) ratios than their high surface brightness counterparts, indicating that LSB galaxies may be dark matter dominated. This interpretation is hampered by the difficulty of disentangling the disc and dark halo contributions from ...
Chris Flynn   +6 more
openaire   +5 more sources

MOND rotation curves of very low mass spiral galaxies [PDF]

open access: yesAstrophys. J. Lett. 658, L17 (2007), 2006
We present MOND analysis for several of the lowest mass disc galaxies currently amenable to such analysis--with (baryonic) masses below 4x10^8 solar masses. The agreement is good, extending the validity of MOND and its predicted mass velocity relation, to such low masses.
arxiv   +1 more source

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