Zobrazeno 1 - 10
of 310
pro vyhledávání: '"Garcia, P. J. V."'
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, 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:
GRAVITY Collaboration, Foschi, A., Abuter, R., Dayem, K. Abd El, Aimar, N., Seoane, P. Amaro, Amorim, A., Berger, J. P., Bonnet, H., Bourdarot, G., Brandner, W., Davies, R., de Zeeuw, P. T., Defrère, D., Dexter, J., Drescher, A., Eckart, A., Eisenhauer, F., Schreiber, N. M. Förster, Garcia, P. J. V., Genzel, R., Gillessen, S., Gomes, T., Haubois, X., Heißel, G., Henning, Th., Jochum, L., Jocou, L., Kaufer, A., Kreidberg, L., Lacour, S., Lapeyrère, V., Bouquin, J. -B. Le, Léna, P., Lutz, D., Mang, F., 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., Straubmeier, C., Sturm, E., Subroweit, M., Tacconi, L. J., Vincent, F., von Fellenberg, S., Woillez, J.
The dark compact object at the centre of the Milky Way is well established to be a supermassive black hole with mass $M_{\bullet} \sim 4.3 \cdot 10^6 \, M_{\odot}$, but the nature of its environment is still under debate. In this work, we used astrom
Externí odkaz:
http://arxiv.org/abs/2312.02653
Autor:
GRAVITY Collaboration, 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., Bouquin, J. B. Le, 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.
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 Way. It is commonly accepted that this object is a supermassive black hole but the nature
Externí odkaz:
http://arxiv.org/abs/2306.17215
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., 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., Paumard, T., Perraut, K., Perrin, G., Peterson, B. M., Petrucci, P. O., Pfuhl, O., Prieto, M. A., Rouan, D., Santos, D. J. D., 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 669, A14 (2023)
This work focuses on active galactic nuclei (AGNs), and the relation between the sizes of the hot dust continuum and the broad-line region (BLR). We find that the continuum size measured using optical/near-infrared interferometry (OI) is roughly twic
Externí odkaz:
http://arxiv.org/abs/2209.14410
Autor:
Consortium, The Gravity Plus, Millour, Florentin, Berio, Philippe, Lagarde, Stéphane, Robbe-Dubois, Sylvie, Gouvret, Carole, Lai, Olivier, Allouche, Fatmé, Bailet, Christophe, Boebion, Olivier, Carbillet, Marcel, Marcotto, Aurélie, Spang, Alain, Girard, Paul, Mauclert, Nicolas, Bouquin, Jean-Baptiste Le, Paumard, Thibaut, Soulez, Ferréol, Woillez, Julien, More, Nikhil, Eisenhauer, Frank, Straubmeier, Christian, Kreidberg, Laura, Garcia, Paulo J. V., Hoenig, Sebastian
Publikováno v:
SPIE, Jul 2022, Montr{\'e}al, France
We present the testbench aimed at integrating the GRAVITY+ adaptive optics GPAO. It consists of two independent elements, one reproducing the Coud{\'e} focus of the telescope, including the telescope deformable mirror mount (with its surface facing d
Externí odkaz:
http://arxiv.org/abs/2208.11360
Autor:
GRAVITY Collaboration, Amorim, A., Bauböck, M., Bentz, M. C., Brandner, W., Bolzer, M., Clénet, Y., Davies, R., de Zeeuw, P. T., Dexter, J., Drescher, A., Eckart, A., Eisenhauer, F., Schreiber, N. M. Förster, Garcia, P. J. V., Genzel, R., Gillessen, S., Gratadour, D., Hönig, S., Kaltenbrunner, D., Kishimoto, M., Lacour, S., Lutz, D., Millour, F., Netzer, H., Onken, C. A., Ott, T., Paumard, T., Perraut, K., Perrin, G., Petrucci, P. O., Pfuhl, O., Prieto, M. A., Rouan, D., Shangguan, J., Shimizu, T., Stadler, J., Sternberg, A., Straub, O., Straubmeier, C., Street, R., Sturm, E., Tacconi, L. J., Tristram, K. R. W., Vermot, P., von Fellenberg, S., Widmann, F., Woillez, J.
Publikováno v:
A&A 654, A85 (2021)
The angular size of the broad line region (BLR) of the nearby active galactic nucleus (AGN) NGC 3783 has been spatially resolved by recent observations with VLTI/GRAVITY. A reverberation mapping (RM) campaign has also recently obtained high quality l
Externí odkaz:
http://arxiv.org/abs/2107.14262
Autor:
Sanchez-Bermudez, J., Garatti, A. Caratti o, Lopez, R. Garcia, Perraut, K., Labadie, L., Benisty, M., Brandner, W., Dougados, C., Garcia, P. J. V., Henning, Th., Klarmann, L., Amorim, A., Bauböck, M., Berger, J. P., Bouquin, J. B. Le, Caselli, P., Clénet, Y., Foresto, V. Coudé du, de Zeeuw, P. T., Drescher, A., Duvert, G., Eckart, A., Eisenhauer, F., Filho, M., Gao, F., Gendron, E., Genzel, R., Gillessen, S., Grellmann, R., Heissel, G., Horrobin, M., Hubert, Z., Jiménez-Rosales, A., Jocou, L., Kervella, P., Lacour, S., Lapeyrère, V., Léna, P., Ott, T., Paumard, T., Perrin, G., Pineda, J. E., Rodríguez-Coira, G., Rousset, G., Segura-Cox, D. M., Shangguan, J., Shimizu, T., Stadler, J., Straub, O., Straubmeier, C., Sturm, E., van Dishoeck, E., Vincent, F., von Fellenberg, S. D., Widmann, F., Woillez, J.
Publikováno v:
A&A 654, A97 (2021)
Protoplanetary disks drive some of the formation process (e.g., accretion, gas dissipation, formation of structures, etc.) of stars and planets. Understanding such physical processes is one of the main astrophysical questions. HD 163296 is an interes
Externí odkaz:
http://arxiv.org/abs/2107.02391
Autor:
Lopez, R. Garcia, Natta, A., Garatti, A. Caratti o, Ray, T. P., Fedriani, R., Koutoulaki, M., Klarmann, L., Perraut, K., Sanchez-Bermudez, J., Benisty, M., Dougados, C., Labadie, L., Brandner, W., Garcia, P. J. V., Henning, Th., Caselli, P., Duvert, G., de Zeeuw, T., Grellmann, R., Abuter, R., Amorim, A., Bauboeck, M., Berger, J. P., Bonnet, H., Buron, A., Clénet, Y., Foresto, V. Coudé du, de Wit, W., Eckart, A., Eisenhauer, F., Filho, M., Gao, F., Dabo, C. E. Garcia, Gendron, E., Genzel, R., Gillessen, S., Habibi, M., Haubois, X., Haussmann, F., Hippler, S., Hubert, Z., Horrobin, M., Rosales, A. Jimenez, Jocou, L., Kervella, P., Kolb, J., Lacour, S., Bouquin, J. -B. Le, Léna, P., Ott, T., Paumard, T., Perrin, G., Pfuhl, O., Ramirez, A., Rau, C., Rousset, G., Scheithauer, S., Shangguan, J., Stadler, J., Straub, O., Straubmeier, C., Sturm, E., van Dishoeck, E., Vincent, F., von Fellenberg, S., Widmann, F., Wieprecht, E., Wiest, M., Wiezorrek, E., Woillez, J., Yazici, S., Zins, G.
Publikováno v:
Nature 2020, 584, 547
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 by the stellar magnetic field. This is thought to be strong enough to truncate the disk cl
Externí odkaz:
http://arxiv.org/abs/2104.06441
Autor:
GRAVITY Collaboration, Amorim, A., Bauböck, M., Brandner, W., Bolzer, M., Clénet, Y., Davies, R., de Zeeuw, P. T., Dexter, J., Drescher, A., Eckart, A., Eisenhauer, F., Schreiber, N. M. Förster, Gao, F., Garcia, P. J. V., Genzel, R., Gillessen, S., Gratadour, D., Hönig, S., Kaltenbrunner, D., Kishimoto, M., Lacour, S., Lutz, D., Millour, F., Netzer, H., Ott, T., Paumard, T., Perraut, K., Perrin, G., Peterson, B. M., Petrucci, P. O., Pfuhl, O., Prieto, M. A., Rouan, D., Sanchez-Bermudez, J., Shangguan, J., Shimizu, T., Schartmann, M., Stadler, J., Sternberg, A., Straub, O., Straubmeier, C., Sturm, E., Tacconi, L. J., Tristram, K. R. W., Vermot, P., von Fellenberg, S., Waisberg, I., Widmann, F., Woillez, J.
Publikováno v:
A&A 648, A117 (2021)
Using VLTI/GRAVITY and SINFONI data, we investigate the sub-pc gas and dust structure around the nearby type 1 AGN hosted by NGC 3783. The K-band coverage of GRAVITY uniquely allows a simultaneous analysis of the size and kinematics of the broad line
Externí odkaz:
http://arxiv.org/abs/2102.00068