Search Results - "Kervella, P"

A distance to the Large Magellanic Cloud that is precise to one per cent by Pietrzyński, G., Graczyk, D., Gallenne, A., Gieren, W., Thompson, I. B., Pilecki, B., Karczmarek, P., Górski, M., Suchomska, K., Taormina, M., Zgirski, B., Wielgórski, P., Kołaczkowski, Z., Konorski, P., Villanova, S., Nardetto, N., Kervella, P., Bresolin, F., Kudritzki, R. P., Storm, J., Smolec, R., Narloch, W.

“…In the era of precision cosmology, it is essential to determine the Hubble constant empirically with an accuracy of one per cent or better 1 . At present, the…”
Get full text

A Dusty Veil Shading Betelgeuse During Its Great Dimming by Montargès, M, Cannon, E, Lagadec, E, Koter, A de, Kervella, P, Sanchez-Bermudez, J, Paladini, C, Cantalloube, F, Decin, L, Scicluna, P, Kravchenko, K, Dupree, A K, Ridgway, S, Wittkowski, M, Anugu, N, Norris, R, Rau, G, Perrin, G, Chiavassa, A, Kraus, S, Monnier, J D, Millour, F, Bouquin, J-B Le, Haubois, X, Lopez, B, Stee, P, Danchi, W

“…Red supergiants are the most common final evolutionary stage of stars that have initial masses between 8 and 35 times that of the Sun. During this stage, which…”
Get full text

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…”
Get full text

Detection of Rydberg Lines from the Atmosphere of Betelgeuse by Dent, W. R. F., Harper, G. M., Richards, A. M. S., Kervella, P., Matthews, L. D.

“…Abstract Emission lines from Rydberg transitions are detected for the first time from a region close to the surface of Betelgeuse. The H30 α line is observed…”
Get full text

The inner circumstellar dust of the red supergiant Antares as seen with VLT/SPHERE/ZIMPOL by Cannon, E, Montargès, M, de Koter, A, Decin, L, Min, M, Lagadec, E, Kervella, P, Sundqvist, J O, Sana, H

“…ABSTRACT The processes by which red supergiants lose mass are not fully understood thus-far and their mass-loss rates lack theoretical constraints. The ambient…”
Get full text

A Geometrical 1% Distance to the Short-period Binary Cepheid V1334 Cygni by Gallenne, A., Kervella, P., Evans, N. R., Proffitt, C. R, Monnier, J. D., Mérand, A., Nelan, E., Winston, E., Pietrzy ski, G., Schaefer, G., Gieren, W., Anderson, R. I., Borgniet, S., Kraus, S., Roettenbacher, R. M., Baron, F., Pilecki, B., Taormina, M., Graczyk, D., Mowlavi, N., Eyer, L.

“…Cepheid stars play a considerable role as extragalactic distances indicators, thanks to the simple empirical relation between their pulsation period and their…”
Get full text

The gravitational mass of Proxima Centauri measured with SPHERE from a microlensing event by Zurlo, A, Gratton, R, Mesa, D, Desidera, S, Enia, A, Sahu, K, Almenara, J-M, Kervella, P, Avenhaus, H, Girard, J, Janson, M, Lagadec, E, Langlois, M, Milli, J, Perrot, C, Schlieder, J-E, Thalmann, C, Vigan, A, Giro, E, Gluck, L, Ramos, J, Roux, A

“…Proxima Centauri, our closest stellar neighbour, is a low-mass M5 dwarf orbiting in a triple system. An Earth-mass planet with an 11 day period has been…”
Get full text

Physical, spectral, and dynamical properties of asteroid (107) Camilla and its satellites by Pajuelo, M., Carry, B., Vachier, F., Marsset, M., Berthier, J., Descamps, P., Merline, W.J., Tamblyn, P.M., Grice, J., Conrad, A., Storrs, A., Timerson, B., Dunham, D., Preston, S., Vigan, A., Yang, B., Vernazza, P., Fauvaud, S., Bernasconi, L., Romeuf, D., Behrend, R., Dumas, C., Drummond, J.D., Margot, J.-L., Kervella, P., Marchis, F., Girard, J.H.

“…•Exhaustive study of Camilla system with all available data: lightcurves, high angular resolution images, occultations, and spectra.•Orbit of largest satellite…”
Get full text

First Results from the CHARA Array. VII. Long-Baseline Interferometric Measurements of Vega Consistent with a Pole-On, Rapidly Rotating Star by Aufdenberg, J. P, Mérand, A, Foresto, V. Coudé du, Absil, O, Di Folco, E, Kervella, P, Ridgway, S. T, Berger, D. H, Brummelaar, T. A. ten, McAlister, H. A, Sturmann, J, Sturmann, L, Turner, N. H

“…We have obtained high-precision interferometric measurements of Vega with the CHARA Array and FLUOR beam combiner in the K' band at projected baselines between…”
Get full text

Obtaining accurate radial velocities for Cepheid companions using the STIS echelles by Proffitt, C. R., Evans, N.R., Winston, E.M., Gallenne, A., Kervella, P.

“…We discuss the high dispersion echelle observations of the hot binary companions of six Cepheids with known radial-velocity orbits that we have obtained with…”
Get full text

Chemical tracers of a highly eccentric AGB–main-sequence star binary by Danilovich, T., Malfait, J., Van de Sande, M., Montargès, M., Kervella, P., De Ceuster, F., Coenegrachts, A., Millar, T. J., Richards, A. M. S., Decin, L., Gottlieb, C. A., Pinte, C., De Beck, E., Price, D. J., Wong, K. T., Bolte, J., Menten, K. M., Baudry, A., de Koter, A., Etoka, S., Gobrecht, D., Gray, M., Herpin, F., Jeste, M., Lagadec, E., Maes, S., McDonald, I., Marinho, L., Müller, H. S. P., Pimpanuwat, B., Plane, J. M. C., Sahai, R., Wallström, S. H. J., Yates, J., Zijlstra, A.

“…Binary interactions have been proposed to explain a variety of circumstellar structures seen around evolved stars, including asymptotic giant branch (AGB)…”
Get full text

On the Limb Darkening, Spectral Energy Distribution, and Temperature Structure of Procyon by Aufdenberg, J. P, Ludwig, H.-G, Kervella, P

“…We have fit synthetic visibilities from three-dimensional (CO super(5)BOLD+PHOENIX) and one-dimensional (PHOENIX, ATLAS 12) model stellar atmospheres of…”
Get full text

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…”
Get full text

Four years’ interferometric observations of Galactic binary Cepheids by Gallenne, A., Mérand, A., Kervella, P., Evans, N.R., Proffitt, C., Pietrzński, G., Gieren, W.

“…We give an update on our long-term program of Galactic Cepheids started in 2012, whose goal is to measure the visual orbits of Cepheid companions. Using the…”
Get full text

Evidence for Very Extended Gaseous Layers around O-rich Mira Variables and M Giants by Mennesson, B, Perrin, G, Chagnon, G, Foresto, V. Coude du, Ridgway, S, Merand, A, Salome, P, Borde, P, Cotton, W, Morel, S, Kervella, P, Traub, W, Lacasse, M

Get full text

A measure of the size of the magnetospheric accretion region in TW Hydrae by Garcia Lopez, R, Natta, A, Caratti o Garatti, A, Ray, T. P, Fedriani, R, Koutoulaki, M, Klarmann, L

“…Stars form by accreting material from their surrounding disks. There is a consensus that matter flowing through the disk is channelled onto the stellar surface…”
Get full text

Investigating Cepheid ℓ Carinae's cycle-to-cycle variations via contemporaneous velocimetry and interferometry by Anderson, R. I., Mérand, A., Kervella, P., Breitfelder, J., LeBouquin, J.-B., Eyer, L., Gallenne, A., Palaversa, L., Semaan, T., Saesen, S., Mowlavi, N.

“…Baade–Wesselink-type (BW) techniques enable geometric distance measurements of Cepheid variable stars in the Galaxy and the Magellanic clouds. The leading…”
Get full text

The VLTI - A Status Report by Glindemann, A, Algomedo, J, Amestica, R, Ballester, P, Bauvir, B, Bugueño, E, Correia, S, Delgado, F, Delplancke, F, Derie, F, Duhoux, Ph, Di Folco, E, Gennai, A, Gilli, B, Giordano, P, Gitton, Ph, Guisard, S, Housen, N, Huxley, A, Kervella, P, Kiekebusch, M, Koehler, B, Lévêque, S, Longinotti, A, Ménardi, S, Morel, S, Paresce, F, Phan Duc, T, Richichi, A, Schöller, M, Tarenghi, M, Wallander, A, Wittkowski, M, Wilhelm, R

“…The Very Large Telescope (VLT) Observatory on Cerro Paranal (2635 m) in Northern Chile is approaching completion. After the four 8-m Unit Telescopes (UT)…”
Get full text

Author Correction: Imaging low-mass planets within the habitable zone of α Centauri (Nature Communications, (2021), 12, 1, (922), 10.1038/s41467-021-21176-6) by Wagner, K., Boehle, A., Pathak, Prashant, Kasper, M., Arsenault, R., Jakob, G., Käufl, U., Leveratto, S., Maire, Anne-Lise, Pantin, E., Siebenmorgen, R., Zins, G., Absil, Olivier, Ageorges, N., Apai, D., Carlotti, A., Choquet, É., Delacroix, Christian, Dohlen, K., Duhoux, P., Forsberg, P., Fuenteseca, E., Gutruf, S., Guyon, O., Huby, E., Kampf, D., Karlsson, M., Kervella, P., Kirchbauer, J.-P., Klupar, P., Kolb, J., Mawet, D., N’Diaye, M., de Xivry, G. O., Quanz, S. P., Reutlinger, A., Ruane, G., Riquelme, M., Soenke, C., Sterzik, M., Vigan, A., de Zeeuw, T.

Get full text

Using the motion of S2 to constrain scalar clouds around SgrA by Foschi, A, Abuter, R, Aimar, N, Seoane, P. Amaro, Amorim, A, Bauböck, M, Berger, J.P, Bonnet, H, Bourdarot, G, Brandner, W, Cardoso, V, Clénet, Y, Dallilar, Y, Davies, R, de Zeeuw, P.T, Defrère, D, Dexter, J, Drescher, A, Eckart, A, Eisenhauer, F, Ferreira, M.C, Schreiber, N.M. Förster, Garcia, P.J.V, Gao, F, Gendron, E, Genzel, R, Gillessen, S, Gomes, T, Habibi, M, Haubois, X, Heißel, G, Henning, T, Hippler, S, Hönig, S.F, Horrobin, M, Jochum, L, Jocou, L, Kaufer, A, Kervella, P, Kreidberg, L, Lacour, S, Lapeyrère, V, Le Bouquin, J.B, Léna, P, Lutz, D, Millour, F, Ott, T, Paumard, T, Perraut, K, Perrin, G, Pfuhl, O, Rabien, S, Ribeiro, D.C, Bordoni, M. Sadun, Scheithauer, S, Shangguan, J, Shimizu, T, Stadler, J, Straub, O, Straubmeier, C, Sturm, E, Sykes, C, Tacconi, L.J, Vincent, F, von Fellenberg, S, Widmann, F, Wieprecht, E, Wiezorrek, E, Woillez, J, Yazici, S

“…The motion of S2, one of the stars closest to the Galactic Centre, has been measured accurately and used to study the compact object at the centre of the Milky…”
Get full text