Wide-Field Spectroscopy

Wide-Field Spectroscopy PDF Author: E. Kontizas
Publisher: Springer Science & Business Media
ISBN: 9401157227
Category : Science
Languages : en
Pages : 399

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Book Description
E. KONTIZAS Astronomical Institute National Observatory of Athens P. O. Box 20048 Athens GR-1181O GREECE The international conference on "Wide-Field Spectroscopy" and its sub ject matter were agreed during the general assembly of the International Astronomical Union (IAU) in August 1994 by the Working Group of Com mision 9 "Wi de-Field Imaging". This meeting gave an opportunity to world experts on this subject to gather in Athens, in order to discuss the cur rent exploitation and the impending opportunities that exist in the area of multi-object spectroscopy, with particular emphasis on: 1. Astronomical instruments, data acquisition, processing and analysis techniques. 2. Astrophysical problems best tackled through wide-field, multi-object spectroscopy. The new fibre optic technology offers an important tool for the advancement of basic research and the development of industrial applications. Astronom ical spectroscopy is a field of astronomy which has contributed much to the advancement of fundamental physics. The spectra of hot stars have been used to determine the well-known Balmer formula for the wavelength of hydrogen lines, in the late 19th century. Since then, spectroscopy has made enormous progress in stellar atmosphere studies, in kinematics, and in the detection of high redshifts in the Universe. The traditional techniques of obtaining wide-field spectroscopic data are based on slitless spectroscopy (objective prism). Several observations, world wide, make use ofthese tech niques in order to obtain information on the spectral properties of objects in large areas of the sky.

Wide-Field Spectroscopy

Wide-Field Spectroscopy PDF Author: E. Kontizas
Publisher: Springer Science & Business Media
ISBN: 9401157227
Category : Science
Languages : en
Pages : 399

Get Book Here

Book Description
E. KONTIZAS Astronomical Institute National Observatory of Athens P. O. Box 20048 Athens GR-1181O GREECE The international conference on "Wide-Field Spectroscopy" and its sub ject matter were agreed during the general assembly of the International Astronomical Union (IAU) in August 1994 by the Working Group of Com mision 9 "Wi de-Field Imaging". This meeting gave an opportunity to world experts on this subject to gather in Athens, in order to discuss the cur rent exploitation and the impending opportunities that exist in the area of multi-object spectroscopy, with particular emphasis on: 1. Astronomical instruments, data acquisition, processing and analysis techniques. 2. Astrophysical problems best tackled through wide-field, multi-object spectroscopy. The new fibre optic technology offers an important tool for the advancement of basic research and the development of industrial applications. Astronom ical spectroscopy is a field of astronomy which has contributed much to the advancement of fundamental physics. The spectra of hot stars have been used to determine the well-known Balmer formula for the wavelength of hydrogen lines, in the late 19th century. Since then, spectroscopy has made enormous progress in stellar atmosphere studies, in kinematics, and in the detection of high redshifts in the Universe. The traditional techniques of obtaining wide-field spectroscopic data are based on slitless spectroscopy (objective prism). Several observations, world wide, make use ofthese tech niques in order to obtain information on the spectral properties of objects in large areas of the sky.

Wide Field Spectroscopy And The Distant Universe - Proceedings Of The 35th Herstmonceux Conference

Wide Field Spectroscopy And The Distant Universe - Proceedings Of The 35th Herstmonceux Conference PDF Author: S Maddox
Publisher: World Scientific
ISBN: 9814550140
Category :
Languages : en
Pages : 438

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Book Description
Galaxies represent the most readily visible fabric of the cosmos. Their morphological types, luminosities and environmental surroundings contain valuable clues as to their origin and evolution. Locally, a strong correlation is seen between galaxy morphology and environmental location; this may have been molded at surprisingly modest redshifts. Spectroscopic and photometric studies of deep fields also suggest remarkably recent changes in the galaxy population. The associated growth of structure during the same interval can be tracked via X-ray studies of distant clusters of galaxies.Very recently, impressive observational facilities have been completed, each of which has extended the astronomers' dataset to look-back times where such evolutionary effects can be studied.This volume discusses surveys which share a common theme — the need for a large number of ground-based spectra. It focuses on the various approaches via a single theme concerned with the evolution of galaxies and their distribution. In the near future, impressive new observational facilities will be able to generate large statistical spectroscopic surveys, and the aim of this volume is to assess the scientific impact that ongoing and future spectroscopic surveys can make. Emphasis is placed on the role of non-optical and satellite facilities and the co-ordination of international efforts.

Wide Field Spectroscopy and the Distant Universe

Wide Field Spectroscopy and the Distant Universe PDF Author: Steve J. Maddox
Publisher: World Scientific
ISBN: 9814533629
Category : Astronomical spectroscopy
Languages : en
Pages : 438

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Book Description


Two-Dimensional Wide-Field Spectroscopy of Nearby Spiral Galaxies

Two-Dimensional Wide-Field Spectroscopy of Nearby Spiral Galaxies PDF Author: Fernando Fabián Rosales Ortega
Publisher: LAP Lambert Academic Publishing
ISBN: 9783838394121
Category :
Languages : en
Pages : 392

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Book Description
The emergence of a new generation of instrumentation in astrophysics, which provide spatially-resolved spectra over a large 2-dimensional (2D) field of view, is opening up a new frontier in the development of surveys based on samples of hundreds of spectra in a 2D context. The observational techniques introduced in this book represent the first attempt to obtain continuous coverage spectra of the disk of a galaxy in the nearby Universe, by the application of the Integral Field Spectroscopy (IFS) technique. A self-consistent methodology is defined in terms of observation, data reduction and analysis techniques for wide-field IFS surveys. This novel approach is used to analyse the properties of the ionized gas and to perform a detailed 2D study of the emission line spectra in a sample of nearby spiral galaxies. This work should be particularly useful to astronomy graduate students and advance researches with interests in the study of the interstellar medium, chemical abundances in galaxies and observational spectroscopic techniques.

Next Generation Wide-field Multi-object Spectroscopy

Next Generation Wide-field Multi-object Spectroscopy PDF Author: Michael J. I. Brown
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 192

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Book Description


Wide Field Spectroscopy and the Distant Universe

Wide Field Spectroscopy and the Distant Universe PDF Author: Steve J. Maddox
Publisher: World Scientific Publishing Company Incorporated
ISBN: 9789810220310
Category : Science
Languages : en
Pages : 416

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Book Description


Wide Field Spectroscopy and the Distant Universe

Wide Field Spectroscopy and the Distant Universe PDF Author: Steve J. Maddox
Publisher:
ISBN:
Category :
Languages : en
Pages : 416

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Book Description


Astronomy from Wide-Field Imaging

Astronomy from Wide-Field Imaging PDF Author: H.T. MacGillivray
Publisher: Springer Science & Business Media
ISBN: 9401111464
Category : Science
Languages : en
Pages : 722

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Book Description
H.T. MacGilLIVRAY Royal Observatory Blackford Hill Edinburgh EH9 3HJ Scotland U.K. lAU Symposium No. 161 on 'Astronomy from Wide-Field Imaging', held in Potsdam, Germany, during 23-27th August 1993, was the first conference organised by the recently-formed Working Group of lAU Commission 9 on 'Wide-Field Imaging'. This Working Group was instigated during the XXIst meeting of the General Assembly of the International Astronomical Union in Buenos Aires in 1991, and represented a merging of the former formal lAU Working Group on 'Astronomical Photography' and the informal 'Digitised Optical Sky Surveys' Working Group. Dr. Richard West was 'invited' to be Chairperson, and hence was given the daunting task of organising the Group from scratch. The very fact that the first conference after only two years was a major lAU Symposium says much about the determination and enthusiasm of Richard West to fulfilling the aims of the new Working Group. The siting of the conference in Potsdam in formerly East Germany provided an excellent opportunity to advantage from the political changes in Eastern Europe. Good access to the meeting was possible by scientists from Eastern European countries, allowing exchange of information on the very important Wide-Field facilities in both East and West, information on the rich archives of photographic plates that exist in both East and West, and allowing discussions between scientists facing very similar problems in both East and West.

Scientific Requirements for Extremely Large Telescopes (IAU S232)

Scientific Requirements for Extremely Large Telescopes (IAU S232) PDF Author: International Astronomical Union. Symposium
Publisher: Cambridge University Press
ISBN: 9780521856089
Category : Nature
Languages : en
Pages : 552

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Book Description
Proceedings volume for researchers and graduate students of astronomy, covering the most exciting science and key ELT projects.

Optical 3D-Spectroscopy for Astronomy

Optical 3D-Spectroscopy for Astronomy PDF Author: Roland Bacon
Publisher: John Wiley & Sons
ISBN: 3527674845
Category : Science
Languages : en
Pages : 307

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Book Description
Over the last 50 years, a variety of techniques have been developed to add a third dimension to regular imaging, with an extended spectrum associated to every imaging pixel. Dubbed 3D spectroscopy from its data format, it is now widely used in the astrophysical domain, but also inter alia for atmospheric sciences and remote sensing purposes. This is the first book to comprehensively tackle these new capabilities. It starts with the fundamentals of spectroscopic instruments, in particular their potentials and limits. It then reviews the various known 3D techniques, with particular emphasis on pinpointing their different `ecological? niches. Putative users are finally led through the whole observing process, from observation planning to the extensive ? and crucial - phase of data reduction. This book overall goal is to give the non-specialist enough hands-on knowledge to learn fast how to properly use and produce meaningful data when using such a 3D capability.