Author: Brian RushPublisher:
ISBN:
Category :
Languages : en
Pages : 666
Book Description
Multiwavelength Properties of a 12-micron Selected Sample of Seyfert Galaxies
Author: Brian RushMultiwavelength Study of Seyfert Galaxies
Author: Veeresh SinghPublisher:
ISBN: 9783846531730
Category : Galactic nuclei
Languages : en
Pages : 288
Book Description
"Seyfert galaxies are a subclass of active galaxies and are categorized as nearby, low luminosity, radio-quiet Active Galactic Nuclei (AGN) hosted in spiral or lenticular galaxies. Seyfert galaxies are classified mainly into two subclasses named as 'type 1' and 'type 2' based on the presence and absence of broad permitted emission lines in their optical spectra, respectively. Seyfert unification scheme hypothesizes that Seyfert type 1s and type 2s belong to the same parent population and appear different solely due to the differing orientations of the obscuring material having a torus-like geometry around the AGN. The primary objective of this work is to examine the validity and limitations of the orientation and obscuration based Seyfert unification scheme using multiwavelength (mainly X-ray and radio) observations. It has been emphasized that the key issue in testing the Seyfert unification scheme is acquiring a well defined Seyfert sample. The statistical comparisons of X-ray, radio and IR properties of the two Seyfert subtypes have been discussed in the framework of the unification scheme."--Page [4] of cover.
Multi-wavelength Study of a Complete Sample of Nearby Seyfert Galaxies
Author: Francesca PanessaDissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 844
Book Description
Multi-wavelength Properties of Submillimeter-selected Galaxies
Author: Laura Jeannine HainlinePublisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 450
Book Description
Multi-wavelength Properties, Luminosity Functions, and Clustering Measurements of 450-mm-selected Galaxies
Author: 林征發INIS Atomindex
Author: Transactions of the International Astronomical Union
Author: International Astronomical UnionPublisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 626
Book Description
Energy Research Abstracts
Author: Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 576
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1460
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.