Search Results - "Moffat, A. F. J."

Orbitally modulated dust formation by the WC7+O5 colliding-wind binary WR 140 by Williams, P. M., Marchenko, S. V., Marston, A. P., Moffat, A. F. J., Varricatt, W. P., Dougherty, S. M., Kidger, M. R., Morbidelli, L., Tapia, M.

“…We present high-resolution infrared (2–18 μm) images of the archetypal periodic dust-making Wolf–Rayet binary system WR 140 (HD 193793) taken between 2001 and…”
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A first orbital solution for the very massive 30 Dor main-sequence WN6h+O binary R145 by Schnurr, O., Moffat, A. F. J., Villar-Sbaffi, A., St-Louis, N., Morrell, N. I.

“…We report the results of a spectroscopic and polarimetric study of the massive, hydrogen-rich WN6h stars R144 (HD 38282 = BAT99-118 = Brey 89) and R145 (HDE…”
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A spectroscopic survey of WNL stars in the Large Magellanic Cloud: general properties and binary status by Schnurr, O., Moffat, A. F. J., St-Louis, N., Morrell, N. I., Guerrero, M. A.

“…We report the results of an intense, spectroscopic survey of all 41 late-type, nitrogen-rich Wolf–Rayet (WR) stars in the Large Magellanic Cloud (LMC)…”
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Proper-motion age dating of the progeny of Nova Scorpii AD 1437 by Shara, M. M., Iłkiewicz, K., Mikołajewska, J., Pagnotta, A., Bode, M. F., Crause, L. A., Drozd, K., Faherty, J., Fuentes-Morales, I., Grindlay, J. E., Moffat, A. F. J., Pretorius, M. L., Schmidtobreick, L., Stephenson, F. R., Tappert, C., Zurek, D.

“…The re-discovery of the binary star system that created the Nova Scorpii AD 1437 stellar outburst shows that it is now a dwarf nova, suggesting that nova…”
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Competitive X-Ray and Optical Cooling in the Collisionless Shocks of WR 140 by Pollock, A. M. T., Corcoran, M. F., Stevens, I. R., Russell, C. M. P., Hamaguchi, K., Williams, P. M., Moffat, A. F. J., Weigelt, G., Shenavrin, V., Richardson, N. D., Espinoza, D., Drake, S. A.

“…Abstract The long-period, highly eccentric Wolf-Rayet star binary system WR 140 has exceptionally well-determined orbital and stellar parameters. Bright,…”
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HR 5907: Discovery of the most rapidly rotating magnetic early B-type star by the MiMeS Collaboration by Grunhut, J. H., Rivinius, Th, Wade, G. A., Townsend, R. H. D., Marcolino, W. L. F., Bohlender, D. A., Szeifert, Th, Petit, V., Matthews, J. M., Rowe, J. F., Moffat, A. F. J., Kallinger, T., Kuschnig, R., Guenther, D. B., Rucinski, S. M., Sasselov, D., Weiss, W. W.

“…We report the discovery and analysis of a very strong magnetic field in the rapidly rotating early B-type star HR 5907, based on observations obtained as part…”
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Understanding the X-ray Flaring from η Carinae by Moffat, A. F. J, Corcoran, M. F

“…We quantify the rapid variations in X-ray brightness ('flares') from the extremely massive colliding wind binary eta Carinae seen during the past three orbital…”
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Spectroscopy of the archetype colliding-wind binary WR 140 during the 2009 January periastron passage by Fahed, R., Moffat, A. F. J., Zorec, J., Eversberg, T., Chené, A. N., Alves, F., Arnold, W., Bergmann, T., Corcoran, M. F., Correia Viegas, N. G., Dougherty, S. M., Fernando, A., Frémat, Y., Gouveia Carreira, L. F., Hunger, T., Knapen, J. H., Leadbeater, R., Marques Dias, F., Martayan, C., Morel, T., Pittard, J. M., Pollock, A. M. T., Rauw, G., Reinecke, N., Ribeiro, J., Romeo, N., Sánchez-Gallego, J. R., dos Santos, E. M., Schanne, L., Stahl, O., Stober, Ba, Stober, Be, Vollmann, K., Williams, P. M.

“…We present the results from the spectroscopic monitoring of WR 140 (WC7pd + O5.5fc) during its latest periastron passage in 2009 January. The observational…”
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VLT/SINFONI time-resolved spectroscopy of the central, luminous, H-rich WN stars of R136 by Schnurr, O., Chené, A.-N., Casoli, J., Moffat, A. F. J., St-Louis, N.

“…Using the Very Large Telescope's Spectrograph for INtegral Field Observation in the Near-Infrared, we have obtained repeated adaptive-optics-assisted,…”
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MOST Detects SPBe Pulsations in HD 127756 and HD 217543: Asteroseismic Rotation Rates Independent of v sin i by Cameron, C, Saio, H, Kuschnig, R, Walker, G. A. H, Matthews, J. M, Guenther, D. B, Moffat, A. F. J, Rucinski, S. M, Sasselov, D, Weiss, W. W

“…The MOST (Microvariability and Oscillations of Stars ) satellite has discovered SPBe (slowly pulsating Be) oscillations in the stars HD 127756 (B1/B2 Vne) and…”
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Constraints on clumps in the representative wind of the WN8 Wolf–Rayet star HD 96548 = WR 40 with simultaneous broad-band light and linear-polarization variability by Ignace, R, Moffat, A F J, Robert, C, Drissen, L

“…ABSTRACT We report precision ground-based broad-band optical intensity and linear-polarization light curves for the sky’s brightest WN8 star, WR 40. WN8 stars…”
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Asteroseismic Analysis of the Pre-Main-Sequence Stars in NGC 2264 by Guenther, D. B, Kallinger, T, Zwintz, K, Weiss, W. W, Kuschnig, R, Casey, M. P, Matthews, J. M, Moffat, A. F. J, Rucinski, S. M, Sasselov, D, Walker, G. A. H

“…NGC 2264 is a young open cluster lying above the Galactic plane in which six variable stars have previously been identified as possible pre-main-sequence (PMS)…”
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BRITE-Constellation: Nanosatellites for Precision Photometry of Bright Stars by Weiss, W. W., Rucinski, S. M., Moffat, A. F. J., Schwarzenberg-Czerny, A., Koudelka, O. F., Grant, C. C., Zee, R. E., Kuschnig, R., Mochnacki, St, Matthews, J. M., Orleanski, P., Pamyatnykh, A., Pigulski, A., Alves, J., Guedel, M., Handler, G., Wade, G. A., Zwintz, K.

“…BRITE-Constellation (where BRITE stands for BRIght Target Explorer) is an international nanosatellite mission to monitor photometrically, in two colours, the…”
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Search for polycyclic aromatic hydrocarbons in the outflows from dust-producing Wolf–Rayet stars by Marchenko, Sergey V., Moffat, A. F. J.

“…Abstract A combined mid-IR spectrum of five colliding-wind, massive, dust-producing Population I Wolf–Rayet (WR) binaries shows a wealth of absorption and…”
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Precision photometric monitoring from space of the multiple system θ Muscae including the WR binary WR48 by Lenoir-Craig, G, St-Louis, N, Moffat, A F J, Pablo, H

“…ABSTRACT Θ Mus  = HD 113904 is a massive multiple system containing the WC5/6 + O6/7V binary WR48 in a $19.1\, \mathrm{ d}$ circular orbit. Previous attempts…”
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On the nature of the single eclipse per 80d orbit of the H-rich luminous WN star WR22 by Lenoir-Craig, G, Antokhin, I I, Antokhina, E A, St-Louis, N, Moffat, A F J

“…ABSTRACT WR22 = HD 92740 is a bright (V  = 6.4 mag), intrinsically luminous, double-line WN7h  + O9III-V binary exhibiting one sharp 8 per cent deep eclipse…”
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Spectroscopic Signatures of the Vanishing Natural Coronagraph of eta Carinae by Damineli, A., Navarete, F., Moffat, A. F. J., Corcoran, M. F., Gull, T. R., Richardson, Derek N, Weigelt, G., Morris, P. W., Stevens, I.

“…Eta Carinae is a massive interacting binary system shrouded in a complex circumstellar environment whose evolution is the source of the long-term brightening…”
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The BRITE Constellation Nanosatellite Mission: Testing, Commissioning, and Operations by Pablo, H., Whittaker, G. N., Popowicz, A., Mochnacki, S. M., Kuschnig, R., Grant, C. C., Moffat, A. F. J., Rucinski, S. M., Matthews, J. M., Schwarzenberg-Czerny, A., Handler, G., Weiss, W. W., Baade, D., Wade, G. A., Zocłońska, E., Ramiaramanantsoa, T., Unterberger, M., Zwintz, K., Pigulski, A., Rowe, J., Koudelka, O., Orleański, P., Pamyatnykh, A., Neiner, C., Wawrzaszek, R., Marciniszyn, G., Romano, P., Woźniak, G., Zawistowski, T., Zee, R. E.

“…BRIght Target Explorer(BRITE) Constellation, the first nanosatellite mission applied to astrophysical research, is a collaboration among Austria, Canada and…”
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A COORDINATED X-RAY AND OPTICAL CAMPAIGN OF THE NEAREST MASSIVE ECLIPSING BINARY, δ ORIONIS Aa. IV. A MULTIWAVELENGTH, NON-LTE SPECTROSCOPIC ANALYSIS by Shenar, T., Oskinova, L., Hamann, W.-R., Corcoran, M. F., Moffat, A. F. J., Pablo, H., Richardson, N. D., Waldron, W. L., Huenemoerder, D. P., Maíz Apellániz, J., Nichols, J. S., Todt, H., Nazé, Y., Hoffman, J. L., Pollock, A. M. T., Negueruela, I.

“…ABSTRACT Eclipsing systems of massive stars allow one to explore the properties of their components in great detail. We perform a multi-wavelength, non-LTE…”
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The BRITE-Constellation Nanosatellite Space Mission And Its First Scientific Results by Handler, G., Pigulski, A., Weiss, W. W., Moffat, A. F. J., Kuschnig, R., Wade, G. A., Orleański, G., Ruciński, S. M., Koudelka, O., Smolec, R., Zwintz, K., Matthews, J. M., Popowicz, A., Baade, D., Neiner, C., Pamyatnykh, A. A., Rowe, J., Schwarzenberg-Czerny, A.

“…The BRIght Target Explorer (BRITE) Constellation is the first nanosatellite mission applied to astrophysical research. Five satellites in low-Earth orbits…”
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