Optics of Cosmic Dust

Optics of Cosmic Dust PDF Author: Gorden Videen
Publisher: Springer Science & Business Media
ISBN: 9401006288
Category : Science
Languages : en
Pages : 320

Get Book

Book Description
Optics of Cosmic Dust describes what we currently know about cosmic dust, how we know it, and the research efforts undertaken to provide that knowledge. Areas treated include observational information, dust morphology and chemistry, light-scattering models, characterisation methodologies, and backscatter polarisation and dynamics. Suitable as an introductory text, the book is also a reference guide for the advanced researcher.

Optics of Cosmic Dust I

Optics of Cosmic Dust I PDF Author: N. V. Voshchinnikov
Publisher: Astrophysics & Space Physics R
ISBN:
Category : Medical
Languages : en
Pages : 182

Get Book

Book Description
The optics of small particles are useful in the interpretation of observational phenomena related to extinction, scattering and emission of radiation by dust grains in space. This review presents three components of dust modelling: Optical constants; Light scattering theories and models. The author aims to show how the general laws of the optics of dust particleswork and to highlight the information about cosmic dust. Part II will be dedicated to the consideration of scattered radiation, dust absorption and emission, radiation pressure and dust properties.

NATO Advanced Research Workshop on the Optics of Cosmic Dust

NATO Advanced Research Workshop on the Optics of Cosmic Dust PDF Author: Gorden Videen
Publisher:
ISBN: 9781423524908
Category :
Languages : en
Pages : 79

Get Book

Book Description
Biological warfare (BW) agents are a prime concern to both military and civilian personnel because of both their lethality and the resulting terror they would inflict upon a population. Dc testing and identifying aerosols is a primary objective of the US DoD and many other institutions worldwide. Light scattering may provide an automated means of rapidly detecting and identifying potentially lethal aerosols real-time without the use of chemical reagents or expensive maintenance. Since organic particles tend to fluoresce, many detector systems have focused on measuring this property to identify potentially harmful particles to raise an alarm. However, because fluorescence signals tend to be weak and smooth, it is difficult to differentiate among species of biological particles. Natural backgrounds vary widely and may cause false alarms. For this reason, other information is needed about the particle system that may be gathered from the elastic scattering spectrum. One property of 3W agents is that when they are aerosolized, they tend to aggregate into clusters. From the scattering signal, it might be possible to characterize the individual spores making up the cluster to help in the identification. However, again it is essential to be aware of the natural background signals caused by dust, diesel fumes, pollen, etc. and to develop methods to distinguish between these particles and the particles of concern.

Experiments on Cosmic Dust Analogues

Experiments on Cosmic Dust Analogues PDF Author: E. Bussoletti
Publisher: Springer Science & Business Media
ISBN: 940093033X
Category : Science
Languages : en
Pages : 384

Get Book

Book Description
Astrophysical analysis relating to solid matter requires data on properties and processes. Such data, however, expecially appropriate to space conditions are mostly lacking. It appeared then very tempting to gather together experimentalists, ob servers and theoreticians working in the field of cosmic dust and in related areas. The Workshop held in Capri (Italy) from September 8th till 12th 1987 gave the participants a unique opportunity for exchange of ideas and discussions of problems and experimental procedures. Introductory reports were prepared with the aim of giving the state of the art about single subjects; contributed poster papers presented, on the contrary, very recent results in the various fields. According to his specific interest each attendant has also contributed to three Working Groups respectively on a) carbon, b) silicates, c) ice and related topics. Scientifical and technical problems about these items were discussed in great detail. Though no definite answers were given, useful indications come out which will be of some help for future works. In addition to the scientific efforts, the Capodimonte Observatory and the Istituto Universitario Navale sought to give a warm welcome to the participants. Thanks to several sponsors, the LOC could organize some excursions and shows to entertain people during their spare time.

Library of Congress Subject Headings

Library of Congress Subject Headings PDF Author: Library of Congress. Cataloging Policy and Support Office
Publisher:
ISBN:
Category : Subject headings, Library of Congress
Languages : en
Pages :

Get Book

Book Description


Polarimetry of Stars and Planetary Systems

Polarimetry of Stars and Planetary Systems PDF Author: Ludmilla Kolokolova
Publisher: Cambridge University Press
ISBN: 1107043905
Category : Science
Languages : en
Pages : 503

Get Book

Book Description
A comprehensive review of state-of-the-art techniques, models and research methods in modern astronomical polarimetry.

Library of Congress Subject Headings

Library of Congress Subject Headings PDF Author: Library of Congress. Office for Subject Cataloging Policy
Publisher:
ISBN:
Category : Subject headings, Library of Congress
Languages : en
Pages :

Get Book

Book Description


A-E

A-E PDF Author: Library of Congress. Office for Subject Cataloging Policy
Publisher:
ISBN:
Category : Subject headings, Library of Congress
Languages : en
Pages :

Get Book

Book Description


Optics of Cosmic Dust

Optics of Cosmic Dust PDF Author: Gorden Videen
Publisher: Springer Science & Business Media
ISBN: 9401006288
Category : Science
Languages : en
Pages : 320

View

Book Description
Optics of Cosmic Dust describes what we currently know about cosmic dust, how we know it, and the research efforts undertaken to provide that knowledge. Areas treated include observational information, dust morphology and chemistry, light-scattering models, characterisation methodologies, and backscatter polarisation and dynamics. Suitable as an introductory text, the book is also a reference guide for the advanced researcher.

Optics of Cosmic Dust I

Optics of Cosmic Dust I PDF Author: N. V. Voshchinnikov
Publisher: Astrophysics & Space Physics R
ISBN:
Category : Medical
Languages : en
Pages : 182

View

Book Description
The optics of small particles are useful in the interpretation of observational phenomena related to extinction, scattering and emission of radiation by dust grains in space. This review presents three components of dust modelling: Optical constants; Light scattering theories and models. The author aims to show how the general laws of the optics of dust particleswork and to highlight the information about cosmic dust. Part II will be dedicated to the consideration of scattered radiation, dust absorption and emission, radiation pressure and dust properties.

Optics of Cosmic Dust (1)

Optics of Cosmic Dust (1) PDF Author: VOSHCHINNIKOV
Publisher:
ISBN: 9780415287791
Category :
Languages : en
Pages :

View

Book Description


NATO Advanced Research Workshop on the Optics of Cosmic Dust

NATO Advanced Research Workshop on the Optics of Cosmic Dust PDF Author: Gorden Videen
Publisher:
ISBN: 9781423524908
Category :
Languages : en
Pages : 79

View

Book Description
Biological warfare (BW) agents are a prime concern to both military and civilian personnel because of both their lethality and the resulting terror they would inflict upon a population. Dc testing and identifying aerosols is a primary objective of the US DoD and many other institutions worldwide. Light scattering may provide an automated means of rapidly detecting and identifying potentially lethal aerosols real-time without the use of chemical reagents or expensive maintenance. Since organic particles tend to fluoresce, many detector systems have focused on measuring this property to identify potentially harmful particles to raise an alarm. However, because fluorescence signals tend to be weak and smooth, it is difficult to differentiate among species of biological particles. Natural backgrounds vary widely and may cause false alarms. For this reason, other information is needed about the particle system that may be gathered from the elastic scattering spectrum. One property of 3W agents is that when they are aerosolized, they tend to aggregate into clusters. From the scattering signal, it might be possible to characterize the individual spores making up the cluster to help in the identification. However, again it is essential to be aware of the natural background signals caused by dust, diesel fumes, pollen, etc. and to develop methods to distinguish between these particles and the particles of concern.

Experiments on Cosmic Dust Analogues

Experiments on Cosmic Dust Analogues PDF Author: E. Bussoletti
Publisher: Springer Science & Business Media
ISBN: 940093033X
Category : Science
Languages : en
Pages : 384

View

Book Description
Astrophysical analysis relating to solid matter requires data on properties and processes. Such data, however, expecially appropriate to space conditions are mostly lacking. It appeared then very tempting to gather together experimentalists, ob servers and theoreticians working in the field of cosmic dust and in related areas. The Workshop held in Capri (Italy) from September 8th till 12th 1987 gave the participants a unique opportunity for exchange of ideas and discussions of problems and experimental procedures. Introductory reports were prepared with the aim of giving the state of the art about single subjects; contributed poster papers presented, on the contrary, very recent results in the various fields. According to his specific interest each attendant has also contributed to three Working Groups respectively on a) carbon, b) silicates, c) ice and related topics. Scientifical and technical problems about these items were discussed in great detail. Though no definite answers were given, useful indications come out which will be of some help for future works. In addition to the scientific efforts, the Capodimonte Observatory and the Istituto Universitario Navale sought to give a warm welcome to the participants. Thanks to several sponsors, the LOC could organize some excursions and shows to entertain people during their spare time.

Library of Congress Subject Headings

Library of Congress Subject Headings PDF Author: Library of Congress
Publisher:
ISBN:
Category : Subject headings, Library of Congress
Languages : en
Pages :

View

Book Description


Library of Congress Subject Headings

Library of Congress Subject Headings PDF Author: Library of Congress. Cataloging Policy and Support Office
Publisher:
ISBN:
Category : Subject headings, Library of Congress
Languages : en
Pages :

View

Book Description


Polarimetry of Stars and Planetary Systems

Polarimetry of Stars and Planetary Systems PDF Author: Ludmilla Kolokolova
Publisher: Cambridge University Press
ISBN: 1107043905
Category : Science
Languages : en
Pages : 503

View

Book Description
A comprehensive review of state-of-the-art techniques, models and research methods in modern astronomical polarimetry.

Library of Congress Subject Headings

Library of Congress Subject Headings PDF Author: Library of Congress. Office for Subject Cataloging Policy
Publisher:
ISBN:
Category : Subject headings, Library of Congress
Languages : en
Pages :

View

Book Description


A-E

A-E PDF Author: Library of Congress. Office for Subject Cataloging Policy
Publisher:
ISBN:
Category : Subject headings, Library of Congress
Languages : en
Pages :

View

Book Description