Essays about: "modelling of dust"

Showing result 1 - 5 of 12 essays containing the words modelling of dust.

  1. 1. An Infrared Stellar Thermometer

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Ieva Puspure; [2021]
    Keywords : Infrared Spectroscopy; Infrared; Red giants; Stellar Temperature; Spectroscopy; Physics and Astronomy;

    Abstract : Infrared (IR) spectroscopy has many advantages over optical, one of which is allowing us to see through intergalactic dust, letting us probe deeper into space and dust-dense regions such as galactic centers. However the investigating the IR spectral range is a relatively new field, owing to recent developments in detector technology, and stellar parameter determination in IR is not well researched. READ MORE

  3. 2. Towards a high resolution view of infrared line formation

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Martin Schmidt Montelius; [2021]
    Keywords : Spectroscopy; Near infrared; K giants; Galactic archeaology; Galactic chemical evolution; Abundances; Milky Way; Physics and Astronomy;

    Abstract : Observing in the infrared has many benefits, such as seeing through the interstellar dust in the galaxy, easier use of adaptive optics, and better flux ratios for direct observations of exoplanets. Before the infrared spectral range can be utilised for highly accurate stellar spectroscopy there is a need for a better understanding of both stellar modelling and the atomic physics that go into forming spectral lines. READ MORE

  4. 3. High Sampling Resolution Luminescence Dating of Loess in Brittany, France

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Vanda Jakabová; [2021]
    Keywords : aeolian dust; loess; luminescence; dMAR; Brittany; LGM; palaeoenvironment; eoliskt damm; loess flygmo ; luminescens; dMAR; Bretagne; LGM; paleomiljö;

    Abstract : Aeolian dust is an important but poorly understood component of the climate system, which both responds to and drives global climate. Recently, dust produced at the high latitudes is also gaining attention as a possible contributor to the atmospheric dust load. READ MORE

  5. 4. Secondary aerosol formation from dimethyl sulfide - Smog chamber experiments and detailed process modelling

    University essay from Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Dana Lüdemann; [2020]
    Keywords : aerosol modelling; atmospheric physics and chemistry; marine aerosols; ADCHAM; aerosol; dimethyl sulfide; Physics and Astronomy;

    Abstract : The aim of this thesis was to investigate the secondary aerosol formation from dimethylsulfide (DMS) using the aerosol dynamics, gas- and particle-phase chemistry kinetic multi-layer model, ADCHAM. The first simulations, concerning the butanol oxidation via hydroxyl radicals (OH), were performed to characterize the UV-light source of the AURA smog chamber (Aarhus university, Denmark), later used for the DMS experiments. READ MORE

  6. 5. Dust emission modelling of AGB stars

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Emelie Siderud; [2020]
    Keywords : ;

    Abstract : .... READ MORE