Sökning: "Open clusters and associations"

Hittade 2 avhandlingar innehållade orden Open clusters and associations.

  1. 1. Radial Velocities Without Spectroscopy -Astrometric determination of stellar radial motion

    Författare :Søren Madsen; Astronomi - Genomgår omorganisation; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astronomi; Hipparcos; Astronomy; space research; cosmic chemistry; astrometry; stellar astrophysics; N-body simulations; Open clusters and associations; cluster kinematics and dynamics; rymdvetenskap; kosmisk kemi;

    Sammanfattning : This work demonstrates the determination of absolute stellar radial velocities from geometrical principles, i.e. using astrometry. Such `astrometric radial velocities' are obtained independently of spectroscopic information. LÄS MER

  3. 2. Clustering Architectures: The Role of Materialities for Emerging Collectives in the Public Domain

    Författare :Jesper Magnusson; Institutionen för arkitektur och byggd miljö; []
    Nyckelord :HUMANIORA; HUMANITIES; Urban design; public life; public space; collective space; everyday life; actor-network theory; territoriality; social interaction; nonhuman agency; material culture;

    Sammanfattning : This thesis is a study of social life, addressing issues concerning how and by what means people meet in urban public space. The main aim of this thesis is to is to investigate how certain artefacts and architectural features support the formation and temporal stabilisation of heterogeneous clusters and collectives, and thus, in order to the development of conceptual tools that can contribute to a more refined description and analysis of the role of architecture and artefacts for urban public life [a very long sentence…]. LÄS MER