Zobrazeno 1 - 10
of 452
pro vyhledávání: '"Feuchtgruber H"'
Autor:
Xuan, Jerry W., Mérand, A., Thompson, W., Zhang, Y., Lacour, S., Blakely, D., Mawet, D., Oppenheimer, R., Kammerer, J., Batygin, K., Sanghi, A., Wang, J., Ruffio, J. -B., Liu, M. C., Knutson, H., Brandner, W., Burgasser, A., Rickman, E., Bowens-Rubin, R., Salama, M., Balmer, W., Blunt, S., Bourdarot, G., Caselli, P., Chauvin, G., Davies, R., Drescher, A., Eckart, A., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Finger, G., Schreiber, N. M. Förster, Garcia, P., Genzel, R., Gillessen, S., Grant, S., Hartl, M., Haußmann, F., Henning, T., Hinkley, S., Hönig, S. F., Horrobin, M., Houllé, M., Janson, M., Kervella, P., Kral, Q., Kreidberg, L., Bouquin, J. -B. Le, Lutz, D., Mang, F., Marleau, G. -D., Millour, F., More, N., Nowak, M., Ott, T., Otten, G., Paumard, T., Rabien, S., Rau, C., Ribeiro, D. C., Bordoni, M. Sadun, Sauter, J., Shangguan, J., Shimizu, T. T., Sykes, C., Soulain, A., Spezzano, S., Straubmeier, C., Stolker, T., Sturm, E., Subroweit, M., Tacconi, L. J., van Dishoeck, E. F., Vigan, A., Widmann, F., Wieprecht, E., Winterhalder, T. O., Woillez, J.
Owing to their similarities with giant exoplanets, brown dwarf companions of stars provide insights into the fundamental processes of planet formation and evolution. From their orbits, several brown dwarf companions are found to be more massive than
Externí odkaz:
http://arxiv.org/abs/2410.11953
Autor:
Bourdarot, G., Eisenhauer, F., Yazıcı, S., Feuchtgruber, H., Bouquin, J-B Le, Hartl, M., Rau, C., Graf, J., More, N., Wieprecht, E., Haussmann, F., Widmann, F., Lutz, D., Genzel, R., Gonte, F., Oberti, S., Kolb, J., Woillez, J., Bonnet, H., Schuppe, D., Brara, A., Hartwig, J., Goldbrunner, A., Furchtsam, C., Soller, F., Czempiel, S., Eibl, J., Huber, D., Uysal, S., Treffler, I., Ozdemir, H., Gopinatha, V., Bourget, P., Berdeu, A., Gillessen, S., Ott, T., Berio, P., Boebion, O., Millour, F., Dembet, R., Edouard, C., Gomes, T., Shimizu, T., Drescher, A., Fabricius, M., Shangguan, J., Lagarde, S., Robbe-Dubois, S., Allouche, F., Nowacki, H., Defrere, D., Garcia, P. J. V., Hoenig, S., Kreidbergg, L., Paumard, T., Straubmeier, C.
Publikováno v:
SPIE Proceedings, Yokohama 2024
We present the Wavefront Sensor units of the Gravity Plus Adaptive Optics (GPAO) system, which will equip all 8m class telescopes of the VLTI and is an instrumental part of the GRAVITY+ project. It includes two modules for each Wavefront Sensor unit:
Externí odkaz:
http://arxiv.org/abs/2409.08438
Autor:
GRAVITY Collaboration, Nowacki, H., Perraut, K., Labadie, L., Bouvier, J., Dougados, C., Benisty, M., Wojtczak, J. A., Soulain, A., Alecian, E., Brandner, W., Garatti, A. Caratti o, Lopez, R. Garcia, Ganci, V., Sánchez-Bermúdez, J., Berger, J. -P., Bourdarot, G., Caselli, P., Clénet, Y., Davies, R., Drescher, A., Eckart, A., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Förster-Schreiber, N. M., Garcia, P., Gendron, E., Genzel, R., Gillessen, S., Grant, S., Henning, T., Jocou, L., Kervella, P., Kurtovic, N., Lacour, S., Lapeyrère, V., Bouquin, J. -B. Le, Lutz, D., Mang, F., Ott, T., Paumard, T., Perrin, G., Rabien, S., Ribeiro, D., Bordoni, M. Sadun, Scheithauer, S., Shangguan, J., Shimizu, T., Spezzano, S., Straubmeier, C., Sturm, E., Tacconi, L., van Dishoeck, E., Vincent, F., Widmann, F.
Publikováno v:
A&A 690, A123 (2024)
The dust- and gas-rich protoplanetary disks around young stellar systems play a key role in star and planet formation. While considerable progress has recently been made in probing these disks on large scales of a few tens of astronomical units (au),
Externí odkaz:
http://arxiv.org/abs/2408.02374
Autor:
GRAVITY Collaboration, Amorim, A., Bourdarot, G., Brandner, W., Cao, Y., Clénet, Y., Davies, R., de Zeeuw, P. T., Dexter, J., Drescher, A., Eckart, A., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Schreiber, N. M. Förster, Garcia, P. J. V., Genzel, R., Gillessen, S., Gratadour, D., Hönig, S., Kishimoto, M., Lacour, S., Lutz, D., Millour, F., Netzer, H., Ott, T., Perraut, K., Perrin, G., Peterson, B. M., Petrucci, P. O., Pfuhl, O., Prieto, M. A., Rabien, S., Rouan, D., Santos, D. J., Shangguan, J., Shimizu, T., Sternberg, A., Straubmeier, C., Sturm, E., Tacconi, L. J., Tristram, K. R. W., Widmann, F., Woillez, J.
Publikováno v:
A&A 690, A76 (2024)
We present new VLTI/GRAVITY near-infrared interferometric measurements of the angular size of the innermost hot dust continuum for 14 type 1 AGNs. The angular sizes are resolved on scales of ~0.7 mas and the inferred ring radii range from 0.028 to 1.
Externí odkaz:
http://arxiv.org/abs/2407.13458
Autor:
Davies, R., Shimizu, T., Pereira-Santaella, M., Alonso-Herrero, A., Audibert, A., Bellocchi, E., Boorman, P., Campbell, S., Cao, Y., Combes, F., Delaney, D., Diaz-Santos, T., Eisenhauer, F., Arredondo, D. Esparza, Feuchtgruber, H., Schreiber, N. M. Forster, Fuller, L., Gandhi, P., Garcia-Bernete, I., Garcia-Burillo, S., Garcia-Lorenzo, B., Genzel, R., Gillessen, S., Martin, O. Gonzalez, Haidar, H., Munoz, L. Hermosa, Hicks, E. K. S., Hoenig, S., Imanishi, M., Izumi, T., Labiano, A., Leist, M., Levenson, N. A., Lopez-Rodriguez, E., Lutz, D., Ott, T., Packham, C., Rabien, S., Almeida, C. Ramos, Ricci, C., Rigopoulou, D., Rosario, D., Rouan, D., Santos, D. J. D., Shangguan, J., Stalevski, M., Sternberg, A., Sturm, E., Tacconi, L., Martin, M. Villar, Ward, M., Zhang, L.
Publikováno v:
A&A 689, A263 (2024)
The ionisation cones of NGC5728 have a deficit of molecular gas based on millimetre observations of CO(2-1) emission. Although photoionisation from the active nucleus may lead to suppression of this transition, warm molecular gas can still be present
Externí odkaz:
http://arxiv.org/abs/2406.17072
Autor:
GRAVITY Collaboration, Abuter, R., Amorim, A., Benisty, M., Berger, J-P., Bonnet, H., Bourdarot, G., Bourget, P., Brandner, W., Clénet, Y., Davies, R., Delplancke-Ströbele, F., Dembet, R., Drescher, A., Eckart, A., Eisenhauer, F., Feuchtgruber, H., Finger, G., Förster-Schreiber, N. M., Garcia, P., Garcia-Lopez, R., Gao, F., Gendron, E., Genzel, R., Gillessen, S., Hartl, M., Haubois, X., Haussmann, F., Henning, T., Hippler, S., Horrobin, M., Jochum, L., Jocou, L., Kaufer, A., Kervella, P., Lacour, S., Lapeyrère, V., Bouquin, J. B. Le, Ledoux, C., Léna, P., Lutz, D., Mang, F., Mérand, A., More, N., Nowak, M., Ott, T., Paumard, T., Perraut, K., Perrin, G., Pfuhl, O., Rabien, S., Ribeiro, D. C., Bordoni, M. Sadun, Shangguan, J., Shimizu, T., Stadler, J., Straub, O., Straubmeier, C., Sturm, E., Tacconi, L. J., Tristram, K. R. W, Vincent, F., von Fellenberg, S., Widmann, F., Wieprecht, E., Woillez, J., Yazici, S., Zins, G.
The detection of low-mass planets orbiting the nearest stars is a central stake of exoplanetary science, as they can be directly characterized much more easily than their distant counterparts. Here, we present the results of our long-term astrometric
Externí odkaz:
http://arxiv.org/abs/2404.08746
Autor:
Nowak, M., Lacour, S., Abuter, R., Woillez, J., Dembet, R., Bordoni, M. S., Bourdarot, G., Courtney-Barrer, B., Defrère, D., Drescher, A., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Frahm, R., Garcia, P., Gillessen, S., Gopinath, V., Graf, J., Hoenig, S., Kreidberg, L., Laugier, R., Bouquin, J. B. Le, Lutz, D., Mang, F., Millour, F., More, N., Morujão, N., Ott, T., Paumard, T., Perrin, G., Rau, C., Ribeiro, D. C., Shangguan, J., Shimizu, T., Soulez, F., Straubmeier, C., Widmann, F., Wolff, B.
Aims. As part of the ongoing GRAVITY+ upgrade of the Very Large Telescope Interferometer infrastructure, we aim to improve the performance of the GRAVITY Fringe-Tracker, and to enable its use by other instruments. Methods. We modify the group delay c
Externí odkaz:
http://arxiv.org/abs/2402.03594
Autor:
GRAVITY Collaboration, Ganci, V., Labadie, L., Perraut, K., Wojtczak, A., Kaufhold, J., Benisty, M., Alecian, E., Bourdarot, G., Brandner, W., Garatti, A. Caratti o, Dougados, C., Lopez, R. Garcia, Sanchez-Bermudez, J., Soulain, A., Amorim, A., Berger, J. -P., Caselli, P., Clénet, Y., Drescher, A., Eckart, A., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Garcia, P., Gendron, E., Genzel, R., Gillessen, S., Grant, S., Heißel, G., Henning, T., Horrobin, M., Jocou, L., Kervella, P., Lacour, S., Lapeyrère, V., Bouquin, J. -B. Le, Léna, P., Lutz, D., Mang, F., Morujão, N., Ott, T., Paumard, T., Perrin, G., Ribeiro, D., Bordoni, M. Sadun, Scheithauer, S., Shangguan, J., Shimizu, T., Straubmeier, C., Sturm, E., Tacconi, L., van Dishoeck, E., Vincent, F., Woillez, J.
Temporal variability in the photometric and spectroscopic properties of protoplanetary disks is common in YSO. However, evidence pointing toward changes in their morphology over short timescales has only been found for a few sources, mainly due to a
Externí odkaz:
http://arxiv.org/abs/2401.17764
Autor:
Abuter, R., Allouche, F., Amorim, A., Bailet, C., Berdeu, A., Berger, J. -P., Berio, P., Bigioli, A., Boebion, O., Bolzer, M. -L., Bonnet, H., Bourdarot, G., Bourget, P., Brandner, W., Cao, Y., Conzelmann, R., Comin, M., Clénet, Y., Courtney-Barrer, B., Davies, R., Defrère, D., Delboulbé, A., Delplancke-Ströbele, F., Dembet, R., Dexter, J., de Zeeuw, P. T., Drescher, A., Eckart, A., Édouard, C., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Finger, G., Schreiber, N. M. Förster, Garcia, P., Lopez, R. Garcia, Gao, F., Gendron, E., Genzel, R., Gil, J. P., Gillessen, S., Gomes, T., Gonté, F., Gouvret, C., Guajardo, P., Guieu, S., Hackenberg, W., Haddad, N., Hartl, M., Haubois, X., Haußmann, F., Heißel, G., Henning, Th., Hippler, S., Hönig, S. F., Horrobin, M., Hubin, N., Jacqmart, E., Jocou, L., Kaufer, A., Kervella, P., Kolb, J., Korhonen, H., Lacour, S., Lagarde, S., Lai, O., Lapeyrère, V., Laugier, R., Bouquin, J. -B. Le, Leftley, J., Léna, P., Lewis, S., Liu, D., Lopez, B., Lutz, D., Magnard, Y., Mang, F., Marcotto, A., Maurel, D., Mérand, A., Millour, F., More, N., Netzer, H., Nowacki, H., Nowak, M., Oberti, S., Ott, T., Pallanca, L., Paumard, T., Perraut, K., Perrin, G., Petrov, R., Pfuhl, O., Pourré, N., Rabien, S., Rau, C., Riquelme, M., Robbe-Dubois, S., Rochat, S., Salman, M., Sanchez-Bermudez, J., Santos, D. J. D., Scheithauer, S., Schöller, M., Schubert, J., Schuhler, N., Shangguan, J., Shchekaturov, P., Shimizu, T. T., Sevin, A., Soulez, F., Spang, A., Stadler, E., Sternberg, A., Straubmeier, C., Sturm, E., Sykes, C., Tacconi, L. J., Tristram, K. R. W., Vincent, F., von Fellenberg, S., Uysal, S., Widmann, F., Wieprecht, E., Wiezorrek, E., Woillez, J., Zins, G.
Tight relationships exist in the local universe between the central stellar properties of galaxies and the mass of their supermassive black hole. These suggest galaxies and black holes co-evolve, with the main regulation mechanism being energetic fee
Externí odkaz:
http://arxiv.org/abs/2401.14567
Autor:
Kuhn, L., Shangguan, J., Davies, R., Man, A. W. S., Cao, Y., Dexter, J., Eisenhauer, F., Schreiber, N. M. Förster, Feuchtgruber, H., Genzel, R., Gillessen, S., Hönig, S., Lutz, D., Netzer, H., Ott, T., Rabien, S., Santos, D. J. D., Shimizu, T., Sturm, E., Tacconi, L. J.
The broad-line region (BLR) of active galactic nuclei (AGNs) traces gas close to the central supermassive black hole (BH). Recent reverberation mapping (RM) and interferometric spectro-astrometry data have enabled detailed investigations of the BLR s
Externí odkaz:
http://arxiv.org/abs/2401.12396