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Thursday, August 6, 2020 | History

1 edition of The interferometric view on hot stars found in the catalog.

The interferometric view on hot stars

T. Rivinius

The interferometric view on hot stars

Viña del Mar, Chile, March 2-6, 2009

by T. Rivinius

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  • 19 Currently reading

Published by Instituto de Astronomía, Universidad Nacional Autónoma de México in México, Distrito Federal .
Written in English


Edition Notes

Statementeditores de las memorias Th. Rivinius and M. Curé
SeriesRevista mexicana de astronomía y astrofísica. Serie de conferencias -- v. 38
ContributionsUniversidad Nacional Autónoma de México. Instituto de Astronomía
Classifications
LC ClassificationsQB843.E2 I575 2010
The Physical Object
Paginationx, 141 p. :
Number of Pages141
ID Numbers
Open LibraryOL24429323M
ISBN 109703206077
ISBN 109786070213175
LC Control Number2010447563

  Shipping Weight: pounds (View shipping rates and policies) Customer Reviews: out of 5 stars 1 customer rating; Amazon Best Sellers Rank: #3,, in Books (See Top in Books) # in Optoelectronics # in Physics of Light (Books) # in Scientific MeasurementReviews: 1. Search the world's most comprehensive index of full-text books. My library.

Virginie Pinel, Daniel Raucoules, in Land Surface Remote Sensing, Key points. Differential radar interferometry is a technique for mapping surface deformation from archived SAR data, suitable primarily for measuring movements of several millimeters to a few dozen centimeters that cover an area greater than one hundred meters. The theoretical precision is around one 20th of the radar. @article{osti_, title = {Model predictions of the results of interferometric observations for stars under conditions of strong gravitational scattering by black holes and wormholes}, author = {Shatskiy, A. A., E-mail: [email protected] and Kovalev, Yu. Yu. and Novikov, I. D.}, abstractNote = {The characteristic and distinctive features of the visibility amplitude of interferometric.

Moiré interferometry has been used for many years to monitor fatigue damage in composites under cyclic loading. 83−85 Shadow Moiré interferometry is a NDE technique that involves covering the surface of a material with a fine grid of closely spaced lines. The material is then loaded and the surface viewed at normal incidence through an optical grid with the same line spacing. Optical interferometry provides us with a unique opportunity to improve our understanding of stellar structure and evolution. Through direct observation of rotationally distorted photospheres at sub-milliarcsecond scales, we are now able to characterize latitude dependencies of stellar radius, temperature structure, and even energy transport. These detailed new views of stars are leading to.


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The interferometric view on hot stars by T. Rivinius Download PDF EPUB FB2

The Interferometric View on Hot Stars Santiago/Viña del Mar, MarchThe meeting aims at bringing together hot star and interferometry expertise, both observationally and theoretically, to review the progress made, as well as The interferometric view on hot stars book to outline current problems in hot star research that are expected to benefit most from interferometric.

"The workshop 'Interferometric View on Hot Stars', of which we present the proceedings with this volume, was held to bring together observers and theoreticians to outline a wishlist of future observing goals, as well as the theoretical frontiers which can be expanded in light of the current and in the near future expected results."--Page vii.

The Interferometric View on Hot Stars 2Œ6 MarchViæa del Mar, Chile Announcement of the Joint ESO, CTIO, ALMA/NRAO and Universidad Valparaíso Workshop One of the research ˜elds in which inter-ferometry excels has turned out to be hot star astrophysics.

New results have often been quickly adopted by the com. Title: An interferometric view of hot star disks. Authors: Daniel Moser Faes (Submitted on 18 Dec ) Abstract: Optical long baseline interferometry was recently established as a technique capable of resolving stars and their circumstellar environments at the milliarcsecond (mas) resolution level.

This high-resolution opens an entire new Cited by: 1. CiteSeerX — To appear in “The interferometric view on Hot stars ()” RevMexAA(SC) HOT STARS AND INTERFEROMETRY CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): into Spanish, the editors will do it for you. What is long-baseline optical/IR stellar interferometry.

© Instituto de Astronomía, UNAM - The Interferometric View on Hot Stars Ed. Rivinius & M. Cure HOT STARS AND INTERFEROMETRY 3 and to resolve the circumstellar envelope or wind, which are sometimes the dominant source of emis.

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The University of Sydney has a long history in optical stellar interferometry. The first project, in the s, was the Narrabri Stellar Intensity Interferometer, which measured the angular diameters of 32 hot stars and established the temperature scale for spectral classes O- F.

An interferometric view of binary stars Henri M.J. Bo na aESO, Karl-Schwarzschild-str. 2, Garching, Germany ABSTRACT The study of binary stars is critical to apprehend many of the most interesting classes of stars.

Moreover, quite often, the study of stars in binary systems is our only mean to constrain stellar properties, such as masses. Massive Stars.

THE LBV HR CAR. Stars tend to form and live in binaries, with the fraction of binary stars being about 50% for solar-like stars to more than 70% for OB stars. A significant fraction of these binary stars will interact in one way or another during their evolution.

Mass transfer will affect the chemical composition of the. Evoln of Solar-mass Stars, ESO C. Haniff – Principles of interferometry March The output of a 2-element interferometer The output of a 2-element interferometer • At combination the E fields from the two collectors can be described as.

Optical interferometers have been spatially resolving the non-spherically symmetric surfaces of rapidly rotating, hot stars since These observations have revealed these stars to have photospheres stretched out of shape due to nearly overwhelming centripetal acceleration, with characteristic, dramatic temperature gradients from.

To appear in RevMexAA(SC) 'The Interferometric View on Hot Stars' (Conference held at Vina del Mar, March) Do you want to read the rest of this article. Request full-text. Interferometric observations of hot stars. View/ Open. PhD thesis (PDF, MB) Date Author.

Maestro, Vicente. Metadata Show full item record. Abstract. Accurate determination of fundamental stellar properties is crucial in understanding and testing models of stellar structure and evolution.

To date, most stars with independent. © Instituto de Astronomía, UNAM - The Interferometric View on Hot Stars Ed. Rivinius & M. Cure RevMexAA (Serie de Conferencias), 38, 27{29 () THE PLACE OF INTERFEROMETRY IN MASSIVE STAR MULTIPLICITY.

After a brief introduction on the interferometric technique we will illustrate how the modulus and the phase of the visibility can be used to constrain the physics of hot star disks (Be, B[e]) and. Stars that present the B[e] phenomenon are known to form a heterogeneous group.

This group is composed by objects in di erent evolutionary stages, like high- and low-mass evolved stars, intermediate-mass pre-main sequence stars and symbiotic objects. However, for more than 50% of the con rmed B[e] stars the evolutionary.

INTERFEROMETRIC MEASUREMENT OF DOUBLE STARS WITH AN INCH REFRACTOR. BY RAYMOND H. WILSON, JR., Ph.D., Flower Observatory, University of Pennsylvania. ABSTRACT. This paper proves that an interferometer mounted on a moderate-sized telescope can be a useful instrument for measuring close double stars.

An interferometer is an instrument that compares the position or surface structure of two objects. The basic two-beam division of amplitude interferometer components consists of a light source, a beamsplitter, a reference surface, and a test surface (Figure 1).The beamsplitter creates the reference and test beams from a single light source.

Interferometry definition, a device that separates a beam of light into two ray beams, usually by means of reflection, and that brings the rays together to produce interference, used to measure wavelength, index of refraction, and astronomical distances.

See more. High-angular resolution imaging, speckle, optical or near-infrared interferometric techniques have been used to determine the visual orbits of many nearby bright massive stars.

Moreover, the combination of visual orbits and radial-velocity (RV) curves provides a method to derive the true orbit of the system, and hence, masses for each stellar component.

The envelopes of seven classical Be stars have been resolved with the I2T, GI2T, and MkIII interferometers in the light of the Ha line. The Ha emission regions have characteristic sizes of 4 to 12 stellar diameters. The interferometric observations strongly support the .Purchase Basics of Interferometry - 1st Edition.

Print Book & E-Book. ISBNWe present in this paper the astronomical validation of a new approach to interferometric starlight combination. Using integrated optics technologies developed by the telecommunication industry, we have implemented optical circuits on coin-size chips that combine two beams and provide simultaneous photometric calibration signals.

We report the first interferometric observations of stars using.