Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Tristram, K. R. W."'
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, 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:
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:
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:
Collaboration, GRAVITY, Abuter, R., Allouche, F., Amorim, A., Bailet, C., Bauböck, M., Berger, J. -P., Berio, P., Bigioli, A., Boebion, O., Bolzer, M. L., Bonnet, H., Bourdarot, G., Bourget, P., Brandner, W., Clénet, Y., Courtney-Barrer, B., Dallilar, Y., Davies, R., Defrère, D., Delboulbé, A., Delplancke, F., Dembet, R., de Zeeuw, P. T., Drescher, A., Eckart, A., Édouard, C., Eisenhauer, F., Fabricius, M., Feuchtgruber, H., Finger, G., Schreiber, N. M. Förster, Garcia, E., Garcia, P., Gao, F., Gendron, E., Genzel, R., Gil, J. P., Gillessen, S., Gomes, T., Gonté, F., Gouvret, C., Guajardo, P., Guieu, S., Hartl, M., Haubois, X., Haußmann, F., Heißel, G., Henning, Th., Hippler, S., Hönig, S., Horrobin, M., Hubin, N., Jacqmart, E., Jochum, L., Jocou, L., Kaufer, A., Kervella, P., Korhonen, H., Kreidberg, L., Lacour, S., Lagarde, S., Lai, O., Lapeyrère, V., Laugier, R., Bouquin, J. -B. Le, Leftley, J., Léna, P., Lutz, D., Mang, F., Marcotto, A., Maurel, D., Mérand, A., Millour, F., More, N., 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., Robbe-Dubois, S., Rochat, S., Salman, M., Schöller, M., Schubert, J., Schuhler, N., Shangguan, J., Shimizu, T., Scheithauer, S., Sevin, A., Soulez, F., Spang, A., Stadler, E., Stadler, J., Straubmeier, C., Sturm, E., Tacconi, L. J., Tristram, K. R. W., Vincent, F., von Fellenberg, S., Uysal, S., Widmann, F., Wieprecht, E., Wiezorrek, E., Woillez, J., Yazici, S., Young, A., Zins, G.
Publikováno v:
A&A 665, A75 (2022)
GRAVITY+ is the upgrade of GRAVITY and the Very Large Telescope Interferometer (VLTI) with wide-separation fringe tracking, new adaptive optics, and laser guide stars on all four 8~m Unit Telescopes (UTs), for ever fainter, all-sky, high contrast, mi
Externí odkaz:
http://arxiv.org/abs/2206.00684
Autor:
GRAVITY Collaboration, Abuter, R., Aimar, N., Amorim, A., Ball, J., Bauböck, M., Berger, J. P., Bonnet, H., Bourdarot, G., Brandner, W., Cardoso, V., Clénet, Y., Dallilar, Y., Davies, R., de Zeeuw, P. T., Dexter, J., Drescher, A., Eisenhauer, F., Schreiber, N. M. Förster, Foschi, A., Garcia, P., Gao, F., Gendron, E., Genzel, R., Gillessen, S., Habibi, M., Haubois, X., Heißel, G., Henning, T., Hippler, S., Horrobin, M., Jochum, L., Jocou, L., Kaufer, A., Kervella, P., Lacour, S., Lapeyrère, V., Bouquin, J. -B. Le, Léna, P., Lutz, D., Ott, T., Paumard, T., Perraut, K., Perrin, G., Pfuhl, O., Rabien, S., Shangguan, J., Shimizu, T., Scheithauer, S., Stadler, J., Stephens, A. W., Straub, O., Straubmeier, C., Sturm, E., Tacconi, L. J., Tristram, K. R. W., Vincent, F., von Fellenberg, S., Widmann, F., Wieprecht, E., Wiezorrek, E., Woillez, J., Yazici, S., Young, A., Zins, G.
Publikováno v:
A&A, 2021
The stars orbiting the compact radio source Sgr A* in the Galactic Centre are precision probes of the gravitational field around the closest massive black hole. In addition to adaptive optics assisted astrometry (with NACO / VLT) and spectroscopy (wi
Externí odkaz:
http://arxiv.org/abs/2112.07478
Autor:
GRAVITY Collaboration, Abuter, R., Aimar, N., Amorim, A., Arras, P., Bauböck, M., Berger, J. P., Bonnet, H., Brandner, W., Bourdarot, G., Cardoso, V., Clénet, Y., Davies, R., de Zeeuw, P. T., Dexter, J., Dallilar, Y., Drescher, A., Eisenhauer, F., Enßlin, T., Schreiber, N. M. Förster, Garcia, P., Gao, F., Gendron, E., Genzel, R., Gillessen, S., Habibi, M., Haubois, X., Heißel, G., Henning, T., Hippler, S., Horrobin, M., Jiménez-Rosales, A., Jochum, L., Jocou, L., Kaufer, A., Kervella, P., Lacour, S., Lapeyrère, V., Bouquin, J. -B. Le, Léna, P., Lutz, D., Mang, F., Nowak, M., Ott, T., Paumard, T., Perraut, K., Perrin, G., Pfuhl, O., Rabien, S., Shangguan, J., Shimizu, T., Scheithauer, S., Stadler, J., Straub, O., Straubmeier, C., Sturm, E., Tacconi, L. J., Tristram, K. R. W., Vincent, F., von Fellenberg, S., Waisberg, I., Widmann, F., Wieprecht, E., Wiezorrek, E., Woillez, J., Yazici, S., Young, A., Zins, G.
Publikováno v:
A&A 657, A82 (2022)
Stellar orbits at the Galactic Center provide a very clean probe of the gravitational potential of the supermassive black hole. They can be studied with unique precision, beyond the confusion limit of a single telescope, with the near-infrared interf
Externí odkaz:
http://arxiv.org/abs/2112.07477
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:
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
Autor:
GRAVITY Collaboration, Amorim, A., Brandner, W., Clénet, Y., Davies, R., de Zeeuw, P. T., Dexter, J., Eckart, A., Eisenhauer, F., Schreiber, N. M. Förster, Gao, F., 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., Shangguan, J., Shimizu, T., Schartmann, M., 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 643, A154 (2020)
We present new near-infrared VLTI/GRAVITY interferometric spectra that spatially resolve the broad Br$\gamma$ emission line in the nucleus of the active galaxy IRAS 09149-6206. We use these data to measure the size of the broad line region (BLR) and
Externí odkaz:
http://arxiv.org/abs/2009.08463