4,877 research outputs found
Observational evidence for a spin-up line in the P-Pdot diagram of millisecond pulsars
It is believed that millisecond pulsars attain their fast spins by accreting
matter and angular momentum from companion stars. Theoretical modelling of the
accretion process suggests a spin-up line in the period-period derivative
(-) diagram of millisecond pulsars, which plays an important role
in population studies of radio millisecond pulsars and accreting neutron stars
in X-ray binaries. Here we present observational evidence for such a spin-up
line using a sample of 143 radio pulsars with < 30 ms. We also find that
PSRs~J18233021A and J18242452A, located near the classic spin-up line,
are consistent with the broad population of millisecond pulsars. Finally, we
show that our approach of Bayesian inference can probe accretion physics,
allowing constraints to be placed on the accretion rate and the
disk-magnetosphere interaction.Comment: 10 pages, 4 figures, 2 tables. Accepted for publication by ApJ
Illuminating Nucleon Gluon Interference via Calorimetric Asymmetry
We present an innovative approach to the linearly polarized gluons confined
inside the unpolarized nucleon in lepton-nucleon scattering. Our method
analyzes the correlation of energy flows at azimuthal separations . The
interference of the spinning gluon with both positive and negative helicities
translates into a asymmetry imprinted on the detector. Unlike the
conventional transverse momentum dependent (TMD) probes, the
asymmetry in this approach is preserved by rotational symmetry, holds to all
orders, and is free of radiation contamination, thus expected to provide the
exquisite signature of the nucleon linearly polarized gluons.Comment: 6 pages, 5 figure
Lycium barbarum polysaccharide attenuates alcoholic cellular injury through TXNIP-NLRP3 inflammasome pathway
postprin
- …