Search Results - "Barba, R. H"

The MiMeS survey of magnetism in massive stars: introduction and overview by Wade, G. A., Neiner, C., Alecian, E., Grunhut, J. H., Petit, V., Batz, B. de, Bohlender, D. A., Cohen, D. H., Henrichs, H. F., Kochukhov, O., Landstreet, J. D., Manset, N., Martins, F., Mathis, S., Oksala, M. E., Owocki, S. P., Rivinius, Th, Shultz, M. E., Sundqvist, J. O., Townsend, R. H. D., ud-Doula, A., Bouret, J.-C., Braithwaite, J., Briquet, M., Carciofi, A. C., David-Uraz, A., Folsom, C. P., Fullerton, A. W., Leroy, B., Marcolino, W. L. F., Moffat, A. F. J., Nazé, Y., Louis, N. St, Aurière, M., Bagnulo, S., Bailey, J. D., Barbá, R. H., Blazère, A., Böhm, T., Catala, C., Donati, J.-F., Ferrario, L., Harrington, D., Howarth, I. D., Ignace, R., Kaper, L., Lüftinger, T., Prinja, R., Vink, J. S., Weiss, W. W., Yakunin, I.

“…The MiMeS (Magnetism in Massive Stars) project is a large-scale, high-resolution, sensitive spectropolarimetric investigation of the magnetic properties of O-…”
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NGC 1624‐2: a slowly rotating, X‐ray luminous Of?cp star with an extraordinarily strong magnetic field by Wade, G. A., Apellániz, J. Maíz, Martins, F., Petit, V., Grunhut, J., Walborn, N. R., Barbá, R. H., Gagné, M., García‐Melendo, E., Jose, J., Moffat, A. F. J., Nazé, Y., Neiner, C., Pellerin, A., Ordaz, M. Penadés, Shultz, M., Simón‐Díaz, S., Sota, A.

“…ABSTRACT This paper presents a first observational investigation of the faint Of?p star NGC 1624‐2, yielding important new constraints on its spectral and…”
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Two O2If/WN6 stars possibly ejected from the massive young Galactic cluster Westerlund 2 by Roman-Lopes, A, Barba, R. H, Morrell, N. I

“…ABSTRACT In this paper we report the identification of two new Galactic O2If*/WN6 stars (WR20aa and WR20c), on the outskirts of the massive young stellar…”
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Two O2 If/WN6 stars possibly ejected from the massive young Galactic cluster Westerlund 2 by Roman-Lopes, A., Barba, R. H., Morrell, N. I.

“…In this paper we report the identification of two new Galactic O2 If*/WN6 stars (WR20aa and WR20c), on the outskirts of the massive young stellar cluster…”
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The Alma catalogue of OB stars – II. A cross-match with Gaia DR2 and an updated map of the solar neighbourhood by Pantaleoni González, M, Maíz Apellániz, J, Barbá, R H, Reed, B Cameron

“…ABSTRACT We cross-match the Alma catalogue of OB stars with Gaia DR2 astrometry and photometry as a first step towards producing a clean sample of massive…”
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A close encounter of the massive kind by Apellaniz, J Maiz, Sana, H, Barba, R H, Le Bouquin, J-B, Gamen, R C

“…We have used (i) Hubble Space Telescope Advanced Camera for Surveys imaging and Space Telescope Imaging Spectrograph spectroscopy, (ii) ground-based Precision…”
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The spectroscopic orbit of HD 168112 A,B in NGC 6604: another massive binary target for interferometry by Putkuri, C, Gamen, R, Morrell, N I, Maíz Apellániz, J, Arias, J I, Simón-Díaz, S, Ferrero, G A, Rodríguez, C N, Sota, A, Benvenuto, O G, Barbá, R H

“…ABSTRACT We present the first spectroscopic orbit of the O-type double-lined star HD 168112 A,B. We analyse 101 high-resolution optical spectra identifying the…”
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Fundamental parameters of two O9-type giant stars: the (former) spectral classification standard HD 93249 A and ALS 12502 A by Ansín, T, Gamen, R, Morrell, N I, Barbá, R H, Maíz Apellániz, J, Arias, J I, Simón-Díaz, S, Holgado, G

“…ABSTRACT The evolution of massive stars is not completely understood. Several phenomena affect their birth, life, and death, multiplicity being one of them. In…”
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DISCOVERY OF THE MASSIVE OVERCONTACT BINARY VFTS 352: EVIDENCE FOR ENHANCED INTERNAL MIXING by Almeida, L. A., Sana, H., Mink, S. E. de, Tramper, F., Soszyn´ski, I., Langer, N., Barbá, R. H., Cantiello, M., Damineli, A., Koter, A. de, Garcia, M., Gräfener, G., Herrero, A., Howarth, I., Apellániz, J. Maíz, Norman, C., Ramírez-Agudelo, O. H., Vink, J. S.

“…ABSTRACT The contact phase expected to precede the coalescence of two massive stars is poorly characterized due to the paucity of observational constraints…”
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A magnetic massive star has experienced a stellar merger by Frost, A J, Sana, H, Mahy, L, Wade, G, Barron, J, Le Bouquin, J-B, Mérand, A, Schneider, F R N, Shenar, T, Barbá, R H, Bowman, D M, Fabry, M, Farhang, A, Marchant, P, Morrell, N I, Smoker, J V

“…Massive stars (those ≥8 solar masses at formation) have radiative envelopes that cannot sustain a dynamo, the mechanism that produces magnetic fields in…”
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The double-lined spectroscopic binary orbit of the massive supergiant HD 152147: A new target for interferometry by Putkuri, C, Gamen, R, Benvenuto, O G, Morrell, N I, Barbá, R H, Higa, R, Arias, J I

“…ABSTRACT We present a new spectroscopic orbit of the O-type binary system HD 152147. We identify absorption lines in both components and use their radial…”
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The GALANTE photometric survey of the northern Galactic plane: project description and pipeline by Maíz Apellániz, J, Alfaro, E J, Barbá, R H, Holgado, G, Vázquez-Ramió, H, Varela, J, Ederoclite, A, Lorenzo-Gutiérrez, A, García-Lario, P, García Escudero, H, García, M, Coelho, P R T

“…ABSTRACT The GALANTE optical photometric survey is observing the northern Galactic plane and some adjacent regions using seven narrow- and…”
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Extreme resonance line profile variations in the ultraviolet spectra of NGC 1624-2: probing the giant magnetosphere of the most strongly magnetized known O-type star by David-Uraz, A, Erba, C, Petit, V, Fullerton, A W, Martins, F, Walborn, N R, MacInnis, R, Barbá, R H, Cohen, D H, Maíz Apellániz, J, Nazé, Y, Owocki, S P, Sundqvist, J O, ud-Doula, A, Wade, G A

“…In this paper, we present high-resolution HST/COS observations of the extreme magnetic O star NGC 1624-2. These represent the first ultraviolet spectra of this…”
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The outer orbit of the high-mass stellar triple system Herschel 36 determined with the VLTI by Sanchez-Bermudez, J, Hummel, C A, Díaz-López, J, Alberdi, A, Schödel, R, Arias, J I, Barbá, R H, Bastida-Escamilla, E, Brandner, W, Maíz Apellániz, J, Pott, J-U

“…ABSTRACT Multiplicity is a ubiquitous characteristic of massive stars. Multiple systems offer us a unique observational constraint on the formation of…”
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Rotation, spectral variability, magnetic geometry and magnetosphere of the Of?p star CPD −28° 2561 by Wade, G. A., Barbá, R. H., Grunhut, J., Martins, F., Petit, V., Sundqvist, J. O., Townsend, R. H. D., Walborn, N. R., Alecian, E., Alfaro, E. J., Apellániz, J. Maíz, Arias, J. I., Gamen, R., Morrell, N., Nazé, Y., Sota, A., ud-Doula, A.

“…We report magnetic and spectroscopic observations and modelling of the Of?p star CPD -28... 2561. Using more than 75 new spectra, we have measured the…”
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The High-Energy Emission from HD 93129A Near Periastron by Palacio, S del, Garcia, F., Altamirano, D., Barbá, R H, Ramon, V. Bosch, Corcoran, M, Becker, M. De, Hamaguchi, K., Apellániz, J Maíz, Adrover, P. Munar, Paredes, J. M., Romero, G. E., Sana, H., Tavani, M., ud-Doula, A.

“…We conducted an observational campaign towards one of the most massive and luminous colliding wind binaries in the Galaxy, HD 93129A, close to its periastron…”
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The GALANTE photometric system by Lorenzo-Gutiérrez, A, Alfaro, E J, Maíz Apellániz, J, Barbá, R H, Marín-Franch, A, Ederoclite, A, Cristóbal-Hornillos, D, Varela, J, Vázquez Ramió, H, Cenarro, A J, Lennon, D J, García-Lario, P

“…Abstract This paper describes the characterization of the GALANTE photometric system, a seven intermediate- and narrow-band filter system with a wavelength…”
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G287.84-0.82: an infrared star cluster in the Carina nebula by Hägele, G. F., Albacete Colombo, J. F., Barbá, R. H., Bosch, G. L.

“…Abstract We have studied the properties of an infrared cluster embedded in the gas and dust of the southern part of the Carina nebula (NGC 3372), where the…”
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Deriving stellar parameters from GALANTE photometry: bias and precision by Lorenzo-Gutiérrez, A, Alfaro, E J, Maíz Apellániz, J, Barbá, R H, Marín-Franch, A, Ederoclite, A, Cristóbal-Hornillos, D, Varela, J, Vázquez Ramió, H, Cenarro, A J, Lennon, D J, García-Lario, P, Daflon, S, Borges Fernandes, M

“…ABSTRACT In this paper, we analyse how to extract the physical properties from the GALANTE photometry of a stellar sample. We propose a direct comparison…”
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The infrared Hourglass cluster in M8 by Arias, J. I., Barbá, R. H., Apellániz, J. Maíz, Morrell, N. I., Rubio, M.

“…A detailed study of the Hourglass nebula in the M8 star-forming region is presented. The study is mainly based on recent subarcsec-resolution JHKs images taken…”
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