Zobrazeno 1 - 10
of 1 173
pro vyhledávání: '"Weigelt G"'
Autor:
Planquart, L., Paladini, C., Jorissen, A., Escorza, A., Pantin, E., Drevon, J., Aringer, B., Baron, F., Chiavassa, A., Cruzalèbes, P., Danchi, W., De Beck, E., Groenewegen, M. A. T., Höfner, S., Hron, J., Khouri, T., Lopez, B., Lykou, F., Montarges, M., Nardetto, N., Ohnaka, K., Olofsson, H., Rau, G., Rosales-Guzmán, A., Sanchez-Bermudez, J., Scicluna, P., Siess, L., Thévenin, F., Van Eck, S., Vlemmings, W. H. T., Weigelt, G., Wittkowski, M.
Publikováno v:
A&A 687, A306 (2024)
Our purpose is to study the effect of binary companions located within the first 10 stellar radii from the primary AGB star. In this work, we target the mass-losing carbon star V Hydrae (V Hya), looking for signatures of its companion in the dust for
Externí odkaz:
http://arxiv.org/abs/2405.07821
Autor:
Drevon, J., Millour, F., Cruzalèbes, P., Paladini, C., Scicluna, P., Matter, A., Chiavassa, A., Montargès, M., Cannon, E., Allouche, F., Hofmann, K. -H., Lagarde, S., Lopez, B., Meilland, A., Petrov, R., Robbe-Dubois, S., Schertl, D., Abraham, G. Zins P., Berio, P., Hron, Th. Henningm J., Isbell, J. W., Jaffe, W., Labadie, L., Varga, J., Weigelt, G., Woillez, J., van Boekel, R., Danchi, E. Pantin W. C., de Koter, A., Rosas, V. Gamez, Hogerheijde, M. R., Leftley, J., Stee, P., Waters, R.
From Nov. 2019 to May 2020, the red supergiant star Betelgeuse experienced an unprecedented drop of brightness in the visible domain called the great dimming event. Large atmospheric dust clouds and large photospheric convective features are suspecte
Externí odkaz:
http://arxiv.org/abs/2401.12404
Autor:
Varga, J., Waters, L. B. F. M., Hogerheijde, M., van Boekel, R., Matter, A., Lopez, B., Perraut, K., Chen, L., Nadella, D., Wolf, S., Dominik, C., Kóspál, Á., Ábrahám, P., Augereau, J. -C., Boley, P., Bourdarot, G., Garatti, A. Caratti o, de Miera, F. Cruz-Sáenz, Danchi, W. C., Rosas, V. Gámez, Henning, Th., Hofmann, K. -H., Houllé, M., Isbell, J. W., Jaffe, W., Juhász, T., Kecskeméthy, V., Kobus, J., Kokoulina, E., Labadie, L., Lykou, F., Millour, F., Moór, A., Morujão, N., Pantin, E., Schertl, D., Scheuck, M., van Haastere, L., Weigelt, G., Woillez, J., Woitke, P., MATISSE, Collaborations, GRAVITY
Publikováno v:
A&A, 681, A47 (2024)
Context. Rocky planets form by the concentration of solid particles in the inner few au regions of planet-forming disks. Their chemical composition reflects the materials in the disk available in the solid phase at the time the planets were forming.
Externí odkaz:
http://arxiv.org/abs/2401.03437
Autor:
Melnikov, S. Yu., Boley, P. A., Nikonova, N. S., Garatti, A. Caratti o, Lopez, R. Garcia, Stecklum, B., Eislöffel, J., Weigelt, G.
Publikováno v:
A&A 673, A156 (2023)
$Context.$ The YSO Th 28 possesses a highly collimated jet, which clearly exhibits an asymmetric brightness of its jet lobes at optical and NIR wavelengths. There may be asymmetry in the jet plasma parameters in opposite jet lobes (e.g. electron dens
Externí odkaz:
http://arxiv.org/abs/2304.12974
Autor:
Damineli, A., Hillier, D. J., Navarete, F., Moffat, A. F. J., Weigelt, G., Corcoran, M. F., Gull, T. R., Richardson, N. D., Ho, T. P., Madura, T. I., Espinoza-Galeas, D., Hartman, H., Morris, P., Pickett, C. S., Stevens, I. R., Russell, C. M. P., Hamaguchi, K., Jablonski, F. J., Teodoro, M., McGee, P., Cacella, P., Heathcote, B., Harrison, K., Johnston, M., Bohlsen, T., Di Scala, G.
Eta Carinae ($\eta$\,Car) exhibits a unique set of P Cygni profiles with both broad and narrow components. Over many decades, the spectrum has changed -- there has been an increase in observed continuum fluxes and a decrease in FeII and HI emission l
Externí odkaz:
http://arxiv.org/abs/2211.01445
Autor:
Lykou, F., Ábrahám, P., Chen, L., Varga, J., Kóspál, Á., Matter, A., Siwak, M., Szabó, Zs. M., Zhu, Z., Liu, H. B., Lopez, B., Allouche, F., Augereau, J. -C., Berio, P., Cruzalèbes, P., Dominik, C., Henning, Th., Hofmann, K. -H., Hogerheijde, M., Jaffe, W. J., Kokoulina, E., Lagarde, S., Meilland, A., Millour, F., Pantin, E., Petrov, R., Robbe-Dubois, S., Schertl, D., Scheuck, M., van Boekel, R., Waters, L. B. F. M., Weigelt, G., Wolf, S.
Publikováno v:
A&A 663, A86 (2022)
The disk of FU Orionis is marginally resolved with MATISSE, suggesting that the region emitting in the thermal infrared is rather compact. An upper limit of $\sim1.3\pm0.1$ mas (in $L$) can be given for the diameter of the disk region probed in the $
Externí odkaz:
http://arxiv.org/abs/2205.10173
Autor:
Robbe-Dubois, S., Cruzalèbes, P., Berio, Ph., Meilland, A., Petrov, R. -G., Allouche, F., Salabert, D., Paladini, C., Matter, A., Millour, F., Lagarde, S., Lopez, B., Burtscher, L., Jaffe, W., Hron, J., Percheron, I., van Boekel, R., Weigelt, G., Stee, Ph.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 510, Issue 1, p 82-94, February 2022
A good knowledge of the angular diameters of stars used to calibrate the observables in stellar interferometry is fundamental. As the available precision for giant stars is worse than the required per cent level, we aim to improve the knowledge of ma
Externí odkaz:
http://arxiv.org/abs/2201.00747
Autor:
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.
Publikováno v:
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 classification. Aims. We aim to spatially resolve the photospheric extent as well as the circumstellar environment. Metho
Externí odkaz:
http://arxiv.org/abs/2112.10695
VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris
Autor:
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 debated. Perpendicular to the circumstellar disk, a bipolar outflow was detected. Infrared apertu
Externí odkaz:
http://arxiv.org/abs/2111.12458
Autor:
Lopez, B., Lagarde, S., Petrov, R. G., Jaffe, W., Antonelli, P., Allouche, F., Berio, P., Matter, A., Meilland, A., Millour, F., Robbe-Dubois, S., Henning, Th., Weigelt, G., Glindemann, A., Agocs, T., Bailet, Ch., Beckmann, U., Bettonvil, F., van Boekel, R., Bourget, P., Bresson, Y., Bristow, P., Cruzalèbes, P., Eldswijk, E., Caujolle, Y. Fanteï, Herrera, J. C. González, Graser, U., Guajardo, P., Heininger, M., Hofmann, K. -H., Kroes, G., Laun, W., Lehmitz, M., Leinert, C., Meisenheimer, K., Morel, S., Neumann, U., Paladini, C., Percheron, I., Riquelme, M., Schoeller, M., Stee, Ph., Venema, L., Woillez, J., Zins, G., Ábrahám, P., Abadie, S., Abuter, R., Accardo, M., Adler, T., Alonso, J., Augereau, J. -C., Böhm, A., Bazin, G., Beltran, J., Bensberg, A., Boland, W., Brast, R., Burtscher, L., Castillo, R., Chelli, A., Cid, C., Clausse, J. -M., Connot, C., Conzelmann, R. D., Danchi, W. -C., Delbo, M., Drevon, J., Dominik, C., van Duin, A., Ebert, M., Eisenhauer, F., Flament, S., Frahm, R., Rosas, V. Gámez, Gabasch, A., Gallenne, A., Garces, E., Girard, P., Glazenborg, A., Gonté, F. Y. J., Guitton, F., de Haan, M., Hanenburg, H., Haubois, X., Hocdé, V., Hogerheijde, M., ter Horst, R., Hron, J., Hummel, C. A., Hubin, N., Huerta, R., Idserda, J., Isbell, J. W., Ives, D., Jakob, G., Jaskó, A., Jochum, L., Klarmann, L., Klein, R., Kragt, J., Kuindersma, S., Kokoulina, E., Labadie, L., Lacour, S., Leftley, J., Poole, R. Le, Lizon, J. -L., Lopez, M., Mérand, A., Marcotto, A., Mauclert, N., Maurer, T., Mehrgan, L. H., Meisner, J., Meixner, K., Mellein, M., Menut, J. L., Mohr, L., Mosoni, L., Navarro, R., Nussbaum, E., Pallanca, L., Pantin, E., Pasquini, L., Duc, T. Phan, Pott, J. -U., Pozna, E., Richichi, A., Ridinger, A., Rigal, F., Rivinius, Th., Roelfsema, R., Rohloff, R. -R., Rousseau, S., Salabert, D., Schertl, D., Schuhler, N., Schuil, M., Shabun, K., Soulain, A., Stephan, C., Toledo, P., Tristram, K., Tromp, N., Vakili, F., Varga, J., Vinther, J., Waters, L. B. F. M., Wittkowski, M., Wolf, S., Wrhel, F., Yoffe, G.
Publikováno v:
A&A 659, A192 (2022)
Context:Optical interferometry is at a key development stage. ESO's VLTI has established a stable, robust infrastructure for long-baseline interferometry for general astronomical observers. The present second-generation instruments offer a wide wavel
Externí odkaz:
http://arxiv.org/abs/2110.15556