Search Results - "Hartkopf, W. I."

First Results from the CHARA Array. II. A Description of the Instrument by ten Brummelaar, T. A, McAlister, H. A, Ridgway, S. T, Bagnuolo, Jr., W. G, Turner, N. H, Sturmann, L, Sturmann, J, Berger, D. H, Ogden, C. E, Cadman, R, Hartkopf, W. I, Hopper, C. H, Shure, M. A

“…The CHARA Array is a six 1 m telescope optical/IR interferometric array located on Mount Wilson, California, designed and built by the Center for High Angular…”
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A Long‐Period Spectroscopic Binary in the O‐Star Multiple System HD 193322 by McKibben, W. P., Bagnuolo, Jr, W. G., Gies, D. R., Hahula, M. E., Hartkopf, W. I., Roberts, Jr, L. C., Bolton, C. T., Fullerton, A. W., Mason, B. D., Penny, L. R., Thaller, M. L.

“…We present radial velocity measurements and a single‐lined spectroscopic orbit for the bright O‐type star, HD 193322A, which we show to be a 311 day binary…”
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The GSU/CHARA program of binary star: Speckle interferometry ? Recent results by Hartkopf, W. I., McAlister, H. A.

“…The paper describes a new catalog of speckle interferometric measurements of binary stars compiled by Georgia State University Center for High Angular…”
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Ultraviolet and Optical Line Profile Variations in the Spectrum of Persei by Gies, D. R, Kambe, E, Josephs, T. S, Bagnuolo, Jr., W. G, Choi, Y. J, Gudehus, D, Guyton, K. M, Hartkopf, W. I, Hildebrand, J. L, Kaye, A. B, Mason, B. D, Riddle, R. L, Sowers, J. W, Turner, N. H, Wilson, J. W, Xiong, Y

“…The rapid variable star, {epsilon} Per (B0.5 IV-III), displays the largest amplitude profile fluctuations known among the growing number of massive,…”
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BINARY STARS UNRESOLVED BY SPECKLE INTERFEROMETRY. III by HARTKOPF, WILLIAM I., McALISTER, HAROLD A.

“…The epochs of 1164 speckle observations, obtained with the 4-meter Mayall telescope at KPNO during 1975–81, are given for 469 unresolved known or suspected…”
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Ultraviolet and Optical Line Profile Variations in the Spectrum of ε Persei by Gies, D. R., Kambe, E., Josephs, T. S., Bagnuolo, Jr, W. G., Choi, Y. J., Gudehus, D., Guyton, K. M., Hartkopf, W. I., Hildebrand, J. L., Kaye, A. B., Mason, B. D., Riddle, R. L., Sowers, J. W., Turner, N. H., Wilson, J. W., Xiong, Y.

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STANDARD STARS FOR BINARY-STAR INTERFEROMETRY by McALISTER, HAROLD A., HARTKOPF, WILLIAM I.

“…We present a list of 26 binary-star systems and propose that they be adopted as standards by all interferometric observers of binary stars. This will permit…”
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The Multiplicity of Massive Stars: A High Angular Resolution Survey with the HST Fine Guidance Sensor by Aldoretta, E. J, Caballero-Nieves, S. M, Gies, D. R, Nelan, E. P, Wallace, D. J, Hartkopf, W. I, Henry, T. J, Jao, W. -C, Apellániz, J. Maíz, Mason, B. D, Moffat, A. F. J, Norris, R. P, Richardson, N. D, Williams, S. J

“…We present the results of an all-sky survey made with the Fine Guidance Sensor on Hubble Space Telescope to search for angularly resolved binary systems among…”
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A catalog of visual double and multiple stars with eclipsing components by Zasche, P, Wolf, M, Hartkopf, W. I, Svoboda, P, Uhlar, R, Liakos, A, Gazeas, K

“…The Astronomical Journal, Volume 138, Issue 2, pp. 664-679 (2009) A new catalog of visual double systems containing eclipsing binaries as one component is…”
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The Frequency of Binary Stars in the Young Cluster Trumpler 14 by Penny, Laura R., Gies, Douglas R., Hartkopf, William I., Mason, Brian D., Turner, Nils H.

“…We present radial-velocity data for the six brightest members of the open cluster Trumpler 14 based on high-dispersion spectra obtained over a five-night…”
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Trigonometric Parallaxes for Two Late-Type Subdwarfs: LSR1425+71 (sdM8.0) and the Binary LSR1610-00 (sd?M6pec) by Dahn, C. C, Harris, H. C, Levine, S. E, Tilleman, T, Monet, A. K. B, Stone, R. C, Guetter, H. H, Canzian, B, Pier, J. R, Hartkopf, W. I, Liebert, J, Cushing, M

“…Trigonometric parallax astrometry and BVI photometry are presented for two late-type subdwarf candidates, LSR1425+71 (sdM8.0) and LSR1610-00 (sd?M6pec). For…”
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AN OPTICAL LIGHT CURVE FOR NOVA CYGNI 1978 by GALLAGHER, J. S., KALER, J. B., OLSON, E. C., HARTKOPF, W. I., HUNTER, D. A.

“…An optical photometric study of Nova Cygni 1978 based on uvby observations, which provide good coverage of the first 100 days of activity, is presented. This…”
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The O-Type Binary 15 Monocerotis Nears Periastron by Gies, Douglas R, Mason, Brian D, Bagnuolo, Jr., William G, Hahula, Michael E, Hartkopf, William I, McAlister, Harold A, Thaller, Michelle L, McKibben, William P, Penny, Laura R

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SB9: The Ninth Catalogue of Spectroscopic Binary Orbits by Pourbaix, D, Tokovinin, A. A, Batten, A. H, Fekel, F. C, Hartkopf, W. I, Levato, H, Morrell, N. I, Torres, G, Udry, S

“…Astron.Astrophys. 424 (2004) 727-732 The Ninth Catalogue of Spectroscopic Binary Orbits (http://sb9.astro.ulb.ac.be) continues the series of compilations of…”
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SPECKLE INTERFEROMETRY OF THE SPECTROSCOPIC BINARY 94 AQUARII A by McALISTER, HAROLD A., HARTKOPF, WILLIAM I.

“…Five years of speckle observations of the spectroscopie binary 94 Aqr A are analyzed to determine the visual orbit of the Aa, b system. Eleven observations of…”
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