Search Results - "MOFFETT, THOMAS J."

Calibrating the Cepheid Period-Radius Relation with Galactic and Magellanic Cloud Cepheids by Gieren, Wolfgang P, Moffett, Thomas J, Barnes III, Thomas G

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V ( RI ) C Photometry of Cepheids in the Magellanic Clouds by Barnes III, Thomas G., Ivans, Inese I., Martin, Jodie R., Froning, C. S., Moffett, Thomas J.

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Importance of High Time Resolution in Flare Star Observations by MOFFETT, THOMAS J

“…PHOTOELECTRIC observations of UV Ceti type flare stars, almost all dMe, have been widely reported1-4. The typical flare phenomenon reported shows a rapid rise…”
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BVRIJHK Photometry of Cepheid Variables by Barnes, Thomas G., Fernley, John A., Frueh, Marian L., Navas, Javier García, Moffett, Thomas J., Skillen, Ian

“…Contemporaneous BVRI and JHK photometry are presented for 22 Cepheid variables. Nineteen of these variables also have uvby photometry available, making them…”
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X rays predicted from flares of UV Ceti stars by JO CRANNELL, CAROL, MCCLINTOCK, JEFFREY E, MOFFETT, THOMAS J

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V(RI) C Photometry of Cepheids in the Magellanic Clouds1 by Barnes III, Thomas G., Ivans, Inese I., Martin, Jodie R., Froning, C. S., Moffett, Thomas J.

“…We presentV(RI) C data for 13 Cepheids in the Large Magellanic Cloud and eight in the Small Magellanic Cloud. The total number of new measures is 55 in each…”
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CLASSICAL CEPHEID LIGHT CURVES REVISITED by SIMON, NORMAN R., MOFFETT, THOMAS J.

“…Fourier decompositions are made of the B, V, R, and I classical Cepheid observations of Moffett and Barnes. The Fourier diagrams for V agree very well with the…”
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BVRIJHK Photometry of RR Lyrae Variables by Barnes, Thomas G., Moffett, Thomas J., Frueh, Marian L.

“…Contemporaneous BVRI and JHK photometry are given for the RR Lyrae variables SW Andromedae and TU Ursae Majoris. Additional BVRI photometry is included for the…”
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GALACTIC CLASSICAL CEPHEIDS: GAMMA VELOCITIES by MOFFETT, THOMAS J., BARNES, THOMAS G.

“…The γ velocities for 61 galactic classical Cepheids have been determined from recent homogeneous radial-velocity measurements combined with older published…”
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RADIAL VELOCITIES OF STANDARD STARS by BARNES, THOMAS G., MOFFETT, THOMAS J., SLOVAK, MARK H.

“…Radial-velocity observations obtained over a five-year period with the McDonald Observatory photoelectric radial-velocity spectrometer are here reported for…”
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Cepheids in the open cluster NGC 6067 by Moffett, Thomas J., Barnes, Thomas G.

“…Fourier decomposition of the light curve indicates that the Cepheid HD 144972 is an overtone pulsator. Using the visual surface brightness technique, we find a…”
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SECONDARY STANDARDS FOR BVRI PHOTOMETRY by MOFFETT, THOMAS J., BARNES, THOMAS G.

“…A thorough test of Fernie's instrumentation system for matching the Johnson BVRI photometric system has been made. From 1,526 observations of 186 stars in the…”
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Variations of the Hβ-emission line during a large flare on UV Ceti by Moffett, Thomas J., Evans, David S., Ferland, Gary

“…Simultaneous high-speed photometry and photoelectric scanner observations of the Hβ-line were obtained for five flare events, one a major flare, on UV Ceti on…”
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THE ORBIT OF THE CLASSICAL CEPHEID U AQUILAE by WELCH, DOUGLAS L., EVANS, NANCY R., LYONS, RON W., HARRIS, HUGH C., BARNES, THOMAS G., SLOVAK, MARK H., MOFFETT, THOMAS J.

“…A total of 62 new radial-velocity observations ofthe classical Cepheid U Aql have been obtained during the interval 1969-86. We present the first determination…”
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A UBVRI EQUATORIAL EXTINCTION STAR NETWORK by BARNES, THOMAS G., MOFFETT, THOMAS J.

“…An equatorial-extinction star network, based on 1503 observations of 37 stars, is presented. These results together with those of Crawford et al. (1971)…”
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Stellar angular diameters and visual surface brightness – III. An improved definition of the relationship by Barnes, Thomas G., Evans, David S., Moffett, Thomas J.

“…The relationship between visual surface brightness parameter Fυ and the (V–R)0 colour index is improved by adding 40 new stars to the 52 stars used in the…”
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Wolf 424: A Neglected Flare Star by Moffett, Thomas J., Evans, David S.

“…Four-colour high-speed photometric observations of the UV Ceti type flare star Wolf 424AB are presented. This system may be one of the most active flare stars…”
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FURTHER OBSERVATIONS OF NONPERIODIC OPTICAL FLICKERING IN HZ HERCULIS by VANDEN BOUT, PAUL A., MOFFETT, THOMAS J.

“…High-speed photometric observations of the HZ Her/Her X-1 system show that nonperiodic optical flickering is present during both the ON and OFF portions of the…”
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A SEARCH FOR CENTIMETRIC WAVELENGTH EMISSION FROM UV CETI STARS by MOFFETT, THOMAS J., HELMKEN, HEMRU F., SPANGLER, STEVEN R.

“…Simultaneous radio and optical observations were obtained on three UV Cet flare stars: YZ CMi, AD Leo, and Wolf 424. The total simultaneous monitoring time was…”
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A POSSIBLE ECLIPSE IN THE TRIPLE SYSTEM 20 LEONIS by BARNES, THOMAS G., FEKEL, FRANCIS C., MOFFETT, THOMAS J.

“…Observations of a possible eclipse in the 20 Leo system are reported. A discussion of the possible implications on this interesting triple system is also…”
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