Search results

We present new results on a study of the weak s-process elemental abundances in the M supergiant alpha Ori (M2Iab). We have conducted the abundance analysis through comparison of synthetic with observed spectra in the two infrared spectral regions 0.7 - 1.1 mu m and 2.1 - 2.3 mu m, where the molecular and atomic line densities are less than in the optical region and where many of the relevant elem

Parity forbidden radiative transitions from metastable levels are observed in spectra of low-density astrophysical plasmas. These lines are used as probes of the physical conditions, made possible due to the long lifetime of their upper level. In a joint effort, the FERRUM project aims to obtain new and accurate atomic data for the iron-group elements, and part of this project concerns forbidden l

Bakgrund: ​Några av de viktigaste aspekterna att ta hänsyn till i vår nutid är att konsumera hållbart och minska mängden avfall vi efterlämnar. En del enskilda individer har börjat ta aktivt ansvar för sin egna miljöpåverkan och sociala medier har visat sig vara ett viktigt verktyg i att engagera sig i hållbarhet. Detta för att nå ut till andra, engagera dem, sprida medvetenhet och kommunicera medBackground: ​Some of the most important aspects to take into account in our present time are to consume sustainably and reduce the amount of waste we leave behind. Some individuals have begun to take active responsibility for their own environmental impact and social media has proved to be an important tool in engaging in sustainability to reach out to others and engage them, spread awareness and

In this paper we describe a formalism for generating exclusive final states in diffractive excitation, based on the optical analogy where diffraction is fully determined by the absorption into inelastic channels. The formalism is based on the Good--Walker formalism for diffractive excitation, and it is assumed that the virtual parton cascades represent the diffractive eigenstates defined by a defi

Radiative lifetimes of nine out of the twelve 4f(13)6p levels in Yb III have been measured, seven of these for the first time. A Penning discharge lamp is introduced as a continuous plasma source, in which the lifetimes are determined with the time-resolved laser-induced fluorescence technique by pumping from metastable 5d and 6s levels. Spectra of the same source are recorded with a Fourier-trans

We present a calculation of the meson masses, decay constants and quark-antiquark vacuum expectation value for the three generic QCD-like chiral symmetry breaking patterns SU(N-F) x SU(N-F) -> SU(N-F)(V), SU(N-F) -> SO(N-F) and SU(2N(F)) -> Sp(2N(F)) in the effective field theory for these cases. We extend the previous two-loop work to include effects of partial quenching and finite volume. The ca

Länge har de riktade emissionerna hamnat i skuggan av företrädesemissionerna. Min utredning visar på att såväl lagstiftaren som AMN under en lång period har ställt sig restriktiva till en ökning av riktade emissioner. Genom samhällets utveckling och vid olika konjunkturcykler har det skett en stadig ökning av användandet av nyemissioner. Bolagen är i allt större behov av att anskaffa kapital och n

Senior lecturer Contact details Email: lars [dot] harrysson [at] soch [dot] lu [dot] se Phone: +46 42 35 65 27Organisation School of Social Work Visiting address: Universitetsplatsen 2, Helsingborg Room number: C543 Service point: 31 WebpageLars Harryssons profile in Lund University research portalOther affiliations Senior lecturer Social Policy and Sustainability Profile area member LU Profile Ar

https://www.soch.lu.se/en/lars-harrysson - 2026-05-10

We study how close-in systems such as those detected by Kepler are affected by the dynamics of bodies in the outer system. We consider two scenarios: outer systems of giant planets potentially unstable to planet-planet scattering and wide binaries that may be capable of driving Kozai or other secular variations of outer planets' eccentricities. Dynamical excitation of planets in the outer system r

Context. Several new multi-object spectrographs are currently planned or under construction that are capable of observing thousands of Galactic and extragalactic objects simultaneously. Aims. In this paper we present a probabilistic fibre-to-target assignment algorithm that takes spectrograph targeting constraints into account and is capable of dealing with multiple concurrent surveys. We present

Med teknikens utveckling öppnas nya dörrar för att utreda och bevisa brott. En ny sorts bevisning, i vart fall i svenska domstolar, är digital 3D-bevisning. Bevisningen byggs upp av bland annat laserskannad data, vilket kan rekonstruera och visualisera till exempel en brottsplats, ett händelseförlopp, kroppsskador, kulbane- och blodbildsanalyser i 3D. 3D-bevisning har hittills använts i ett fåtal With the rise of new technology, new doors are opened to investigate and prove crimes. A new kind of evidence, at least in Swedish courts, is digital 3D models. 3D models are made from data collected with different techniques but foremost laser scanning, which can reconstruct and visualise crime scenes, a course of events, bodily injuries, ballistic and blood print analyses in 3D. So far, 3D model

https://www.biology.lu.se/biological-museum/entomological-collections/expeditions - 2026-05-09

Syftet med mitt arbete är att utveckla min egen interpretation av andra satsen i Haydns cellokonsert i C-dur. Genom att systematiskt lyssna på hur ett antal berömda cellister tolkat musiken, genom att jämföra parametrarna tempo, vibrato, dynamik och frasering har jag kunnat upptäcka vissa samband och avvikelser mellan tolkningarna. Med hjälp av denna nya kunskap har det varit möjligt för mig att m