Search Results - "De Souza, A. Domiciano"

Intensity interferometry of P Cygni in the H α emission line: towards distance calibration of LBV supergiant stars by Rivet, J-P, Siciak, A, de Almeida, E S G, Vakili, F, Domiciano de Souza, A, Fouché, M, Lai, O, Vernet, D, Kaiser, R, Guerin, W

“…ABSTRACT We present intensity interferometry of the luminous blue variable P Cyg in the light of its H α emission performed with 1 m-class telescopes. We…”
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Capabilities of future intensity interferometers for observing fast-rotating stars: imaging with two- and three-telescope correlations by Nuñez, Paul D., Domiciano de Souza, A.

“…Future large arrays of telescopes, used as intensity interferometers, can be used to image the surfaces of stars with unprecedented angular resolution…”
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Combined spectroscopy and intensity interferometry to determine the distances of the blue supergiants P Cygni and Rigel by de Almeida, E S G, Hugbart, M, Domiciano de Souza, A, Rivet, J-P, Vakili, F, Siciak, A, Labeyrie, G, Garde, O, Matthews, N, Lai, O, Vernet, D, Kaiser, R, Guerin, W

“…ABSTRACT In this paper, we report on spatial intensity interferometry measurements within the  Hα line on two stars: the Luminous Blue Variable supergiant…”
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Bayesian sampling with BeAtlas, a grid of synthetic Be star spectra I. Recovering the fundamental parameters of α Eri and β CMi by Rubio, A C, Carciofi, A C, Ticiani, P, Mota, B C, Vieira, R G, Faes, D M, Genaro, M, de Amorim, T H, Klement, R, Araya, I, Arcos, C, Curé, M, Domiciano de Souza, A, Georgy, C, Jones, C E, Suffak, M W, Silva, A C F

“…ABSTRACT Classical B emission (Be) stars are fast rotating, near-main-sequence B-type stars. The rotation and the presence of circumstellar discs profoundly…”
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On the Determination of the Rotational Oblateness of Achernar by Carciofi, A. C, Domiciano de Souza, A, Magalhães, A. M, Bjorkman, J. E, Vakili, F

“…The recent interferometric study of Achernar, leading to the conclusion that its geometrical oblateness cannot be explained by the Roche approximation, has…”
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Asteroseismology and interferometry by Cunha, M. S., Aerts, C., Christensen-Dalsgaard, J., Baglin, A., Bigot, L., Brown, T. M., Catala, C., Creevey, O. L., de Souza, A. Domiciano, Eggenberger, P., Garcia, P. J. V., Grundahl, F., Kervella, P., Kurtz, D. W., Mathias, P., Miglio, A., Monteiro, M. J. P. F. G., Perrin, G., Pijpers, F. P., Pourbaix, D., Quirrenbach, A., Rousselet-Perraut, K., Teixeira, T. C., Thévenin, F., Thompson, M. J.

“…Asteroseismology provides us with a unique opportunity to improve our understanding of stellar structure and evolution. Recent developments, including the…”
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Prevalence of SED Turndown among Classical Be Stars: Are All Be Stars Close Binaries? by Klement, Robert, Carciofi, A. C., Rivinius, T., Ignace, R., Matthews, L. D., Torstensson, K., Gies, D., Vieira, R. G., Richardson, N. D., de Souza, A. Domiciano, Bjorkman, J. E., Hallinan, G., Faes, D. M., Mota, B., Gullingsrud, A. D., de Breuck, C., Kervella, P., Curé, M., Gunawan, D.

“…Rapid rotation is a fundamental characteristic of classical Be stars and a crucial property allowing for the formation of their circumstellar disks. Past…”
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Multitechnique study of the B[e] supergiant RMC 82 by Seriacopi, D B, Carciofi, A C, de Amorim, T H, Magalhães, A M, Vieira, R G, de Souza, A Domiciano, Rubio, A, Rubinho, M S, Bednarski, D, Mota, B C, Faes, D M, Silva, A C F

“…ABSTRACT B[e] supergiants (sgB[e]) are rare objects whose evolutionary stage remains uncertain. Observationally, they display strong Balmer emission lines,…”
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Spectroscopic detection of Altair's non-radial pulsations by Rieutord, M, Petit, P, Reese, D, Böhm, T, Ariste, A. Lopez, Mirouh, G, de Souza, A. Domiciano

“…A&A 669, A99 (2023) Context: Rapid rotation is a common feature of early-type stars but which remains a challenge for the models. The understanding of its…”
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Refined fundamental parameters of Canopus from combined near-IR interferometry and spectral energy distribution by de Souza, A. Domiciano, Zorec, J, Millour, F, Bouquin, J. -B. Le, Spang, A, Vakili, F

“…A&A 654, A19 (2021) Canopus, the brightest and closest yellow supergiant to our Solar System, offers a unique laboratory for understanding the physics of…”
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The binary system of the spinning-top Be star Achernar by Kervella, P, Borgniet, S, de Souza, A. Domiciano, Mérand, A, Gallenne, A, Rivinius, Th, Lacour, S, Carciofi, A, Faes, D. Moser, Bouquin, J. -B. Le, Taormina, M, Pilecki, B, Berger, J. -Ph, Bendjoya, Ph, Klement, R, Millour, F, Janot-Pacheco, E, Spang, A, Vakili, F

“…A&A 667, A111 (2022) Achernar, the closest and brightest classical Be star, presents rotational flattening, gravity darkening, occasional emission lines due to…”
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A realistic two-dimensional model of Altair by Bouchaud, K, de Souza, A. Domiciano, Rieutord, M, Reese, D. R, Kervella, P

“…A&A 633, A78 (2020) Fast rotation is responsible for important changes in the structure and evolution of stars. Optical long baseline interferometry now…”
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A thin shell of ionized gas explaining the IR excess of classical Cepheids by Hocdé, V, Nardetto, N, Lagadec, E, Niccolini, G, de Souza, A. Domiciano, Mérand, A, Kervella, P, Gallenne, A, Marengo, M, Trahin, B, Gieren, W, Pietrzynski, G, Borgniet, S, Breuval, L, Javanmardi, B

“…Despite observational evidences, InfraRed (IR) excess of classical Cepheids are seldom studied and poorly understood, but probably induces systematics on the…”
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The extended atmosphere and circumstellar environment of the cool evolved star VX Sagittarii as seen by MATISSE by Chiavassa, A, Kravchenko, K, Montargès, M, Millour, F, Matter, A, Freytag, B, Wittkowski, M, Hocdé, V, Cruzalèbes, P, Allouche, F, Lopez, B, Lagarde, S, Petrov, R. G, Meilland, A, Robbe-Dubois, S, Hofmann, K. -H, Weigelt, G, Berio, P, Bendjoya, P, Bettonvil, F, de Souza, A. Domiciano, Heininger, M, Henning, Th, Isbell, J. W, Jaffe, W, Labadie, L, Lehmitz, M, Meisenheimer, K, Soulain, A, Varga, J, Augereau, J. -C, van Boekel, R, Burtscher, L, Danchi, W. C, Dominik, C, Drevon, J, Rosas, V. Gámez, Hogerheijde, M. R, Hron, J, Klarmann, L, Kokoulina, E, Lagadec, E, Leftley, J, Mosoni, L, Nardetto1, N, Paladini, C, Pantin, E, Schertl, D, Stee, P, Szabados, L, Waters, R, Wolf, S, Yoffe, G

“…A&A 658, A185 (2022) Context. VX Sgr is a cool, evolved, and luminous red star whose stellar parameters are difficult to determine, which affects its…”
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VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris by Hofmann, K. -H, Bensberg, A, Schertl, D, Weigelt, G, Wolf, S, Meilland, A, Millour, F, Waters, L. B. F. M, Kraus, S, Ohnaka, K, Lopez, B, Petrov, R. G, Lagarde, S, Berio, Ph, Allouche, F, Robbe-Dubois, S, Jaffe, W, Henning, Th, Paladini, C, Schöller, M, Mérand, A, Glindemann, A, Beckmann, U, Heininger, M, Bettonvil, F, Zins, G, Woillez, J, Bristow, P, Stee, P, Vakili, F, van Boekel, R, Hogerheijde, M. R, Dominik, C, Augereau, J. -C, Matter, A, Hron, J, Pantin, E, Rivinius, Th, de Wit, W. -J, Varga, J, Klarmann, L, Meisenheimer, K, Rosas, V. Gámez, Burtscher, L, Leftley, J, Isbell, J. W, Yoffe, G, Kokoulina, E, Danchi, W. C, Cruzalèbes, P, de Souza, A. Domiciano, Drevon, J, Hocdé, V, Kreplin, A, Labadie, L, Connot, C, Nußbaum, E, Lehmitz, M, Antonelli, P, Graser, U, Leinert, C

“…Context: FS Canis Majoris (FS CMa, HD 45677) is an unclassified B[e] star surrounded by an inclined dust disk. The evolutionary stage of FS CMa is still…”
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Gravity darkening in stars with surface differential rotation by Zorec, J, Rieutord, M, Lara, F. Espinosa, Frémat, Y, de Souza, A. Domiciano, Royer, F

“…A&A 606, A32 (2017) The interpretation of stellar apparent fundamental parameters must be treated consistently with the characteristics of their surface…”
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Prevalence of SED turndown among classical Be stars: Are all Be stars close binaries? by Klement, Robert, Carciofi, A. C, Rivinius, T, Ignace, R, Matthews, L. D, Torstensson, K, Gies, D, Vieira, R. G, Richardson, N. D, de Souza, A. Domiciano, Bjorkman, J. E, Hallinan, G, Faes, D. M, Mota, B, Gullingsrud, A. D, de Breuck, C, Kervella, P, Curé, M, Gunawan, D

“…2019ApJ...885..147K Rapid rotation is a fundamental characteristic of classical Be stars and a crucial property allowing for the formation of their…”
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VLTI/PIONIER images the Achernar disk swell by Vedova, G. Dalla, Millour, F, de Souza, A. Domiciano, Petrov, R. G, Faes, D. Moser, Carciofi, A. C, Kervella, P, Rivinius, T

“…Context. The mechanism of disk formation around fast-rotating Be stars is not well understood. In particular, it is not clear which mechanisms operate, in…”
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Critical study of the distribution of rotational velocities of Be stars; II: Differential rotation and some hidden effects interfering with the interpretation of the Vsin i parameter by Zorec, J, Frémat, Y, de Souza, A. Domiciano, Royer, F, Cidale, L, Hubert, A. -M, Semaan, T, Martayan, C, Cochetti, Y. R, Arias, M. L, Aidelman, Y, Stee, P

“…A&A 602, A83 (2017) We assume that stars may undergo surface differential rotation to study its impact on the interpretation of $V\!\sin i$ and on the observed…”
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Grown-up stars physics with MATISSE by Millour, Florentin, Hron, J, Chiavassa, A, Weigelt, G, Soulain, A, Khorrami, Z, Meilland, A, Nardetto, N, Paladini, C, de Souza, A Domiciano, Niccolini, G, Hofmann, K. -H, Schertl, D, Stee, P, Bendjoya, P, Thévenin, F, Vakili, F, Berio, P, Lanz, T, Matter, A, Cruzalèbes, P, Petrov, R, Lopez, B

“…MATISSE represents a great opportunity to image the environment around massive and evolved stars. This will allow one to put constraints on the circumstellar…”
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