Search results for "Visible band"

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Pulsating in Unison at Optical and X-Ray Energies: Simultaneous High Time Resolution Observations of the Transitional Millisecond Pulsar PSR J1023+00…

2019

PSR J1023+0038 is the first millisecond pulsar discovered to pulsate in the visible band; such a detection took place when the pulsar was surrounded by an accretion disk and also showed X-ray pulsations. We report on the first high time resolution observational campaign of this transitional pulsar in the disk state, using simultaneous observations in the optical (TNG, NOT, TJO), X-ray (XMM-Newton, NuSTAR, NICER), infrared (GTC) and UV (Swift) bands. Optical and X-ray pulsations were detected simultaneously in the X-ray high intensity mode in which the source spends $\sim$ 70% of the time, and both disappeared in the low mode, indicating a common underlying physical mechanism. In addition, o…

AccretionAccretion disks-pulsars: Individual (psr j1023+0038)-stars: Neutron-X-rays: Binaries010504 meteorology & atmospheric sciencesAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesAstrophysics01 natural sciencesSettore FIS/05 - Astronomia E AstrofisicaPulsarAccretion discMillisecond pulsar0103 physical sciencesAstrophysics::Solar and Stellar Astrophysics010303 astronomy & astrophysicsAstrophysics::Galaxy Astrophysics0105 earth and related environmental sciencesHigh Energy Astrophysical Phenomena (astro-ph.HE)PhysicsAstrophysics::Instrumentation and Methods for AstrophysicsX-rayAstronomy and AstrophysicsTime resolutionAccretion (astrophysics)Space and Planetary ScienceVisible bandAstrophysics::Earth and Planetary AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaThe Astrophysical Journal
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Absorption spectrum of the f(A1g) ← X(Eg), a(F2g) electronic transition of OsF6

1997

Abstract The absorption spectrum of the visible band of OsF 6 has been recorded using a commercial spectrophotometer. The first vibronic assignments for this band have been realized using the analogy with the d ← X transition of IrF 6 . Some vibronic parameter values are derived.

chemistry.chemical_compoundAbsorption spectroscopyChemistryVisible bandVibronic spectroscopyAtomic physicsOsmium hexafluorideInstrumentationSpectroscopyAtomic and Molecular Physics and OpticsMolecular electronic transitionAnalytical ChemistrySpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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