Written in English
Thesis (M.A.) -- University of Toronto, 1927.
|The Physical Object|
A Proposed Method for the Measurement and Reduction of Spectrograms for the Determination of the Radial Velocities of Celestial Objects.- II. Application to a Study of the Variable Star W Sagittarii Curtiss, R. H. Abstract. Publication: Publications of Author: R. H. Curtiss. A Proposed Method for the Measurement and Reduction of Spectrograms for the Determination of the Radial Velocities of Celestial Objects, and an Application of this Author: Ralph Hamilton Curtiss. A proposed method for the measurement and reduction of spectrograms for the determination of the radial velocities of celestial objects. II. Application to a study of the variable star W Sagittarii Curtiss, Ralph Hamilton; Abstract. Publication: Lick Observatory Bulletin. Pub Date: Author: Ralph Hamilton Curtiss. It is noted that a modified version of the reduction technique can be used to obtain radial velocities from objective-prism plates. spectrograms of 36 proposed runaway stars were obtained over.
Determination of radial velocities and their applications. London, New York, published for the International Council of Scientific Unions by Academic P., (OCoLC) Document Type: Book: All Authors / Contributors: A H Batten; John F Heard. A method of measurement and reduction of spectrograms for the determination of radial velocities. II. Application to a study of the variable star W Sagittarii. Authors: Curtiss, R. H. Journal: Astrophysical Journal, 20, () Bibliographic Code: ApJC. for radial velocity measurements (dispersion 29 Amm −1) so it is not adequate for spectral classi cation. We used these spectrograms to verify the peculiar characteristics of the spectra of the program stars. We have indicated in the last column of Table 2 the spectral classi cation quoted in the Catalogue of Ap and Am Stars (Renson et al. ). A Method of Measurement and Reduction of Spectrograms for the Determination of Radial Velocities. II. Application to a Study of the Variable Star W Sagittarii,” was published in Astrophsial Journal, 20 (), –; and in Bulletin of the Lick Observatory, 3 (), 19–
Gaia will provide multi-color photometry for billion stars at V = Also, it was expected to measure radial velocities to a few km/s precision . Vistas in Astronomy, Vol. 22, pp. /78/ $/0 Pergamon Press Ltd. Printed in Great Britain NEW METHODS AND OLD PRINCIPLES FOR THE DETERMINATION O. fine quality of the spectrograms secured in that period speak well for the skill and energy of his administration. Before and after his period of service in Chile he secured spectrograms at Mount Hamilton for the determination of stellar radial velocities, and his measures of spectrograms were numerous. Mr. Moore as-. Moore’s most important writings are “Methods of Measurement and Reduction of Spectro-grams for the Determination of Radial Velocities,” in Publications of the Astronomical Society of the Pacific, 19 (), 13–26; “The Spectrographic Velocities of the Bright-Line Nebulae,” in Publications of the Lick Observ-atory, 13 (), 75–, written with W. W. Campbell; “Third Catalogue of Spectroscopic .