Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Hackenberg W"'
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:
Vogt, F. P. A., Mehner, A., Figueira, P., Yu, S., Kerber, F., Pfrommer, T., Hackenberg, W., Calia, D. Bonaccini
Ground-based optical astronomical observations supported by or in the vicinity of laser guide-star systems can be contaminated by Raman-scattered laser photons. Anticipating, alleviating, and correcting for the impact of this self-inflicted contamina
Externí odkaz:
http://arxiv.org/abs/2304.13747
Autor:
Vogt, F. P. A., Álvarez, J. L., Calia, D. Bonaccini, Hackenberg, W., Bourget, P., Aranda, I., Bellhouse, C., Blanchard, I., Cerda, S., Cid, C., Comin, M., Contreras, M. Espinoza, Hau, G., Hibon, P., Holzlöhner, R., Jaffé, Y. L., Kolb, J., Kuntschner, H., Madec, P. -Y., Mieske, S., Milli, J., Opitom, C., Parraguez, D., Romero, C., Selman, F., Schmidtobreick, L., Smoker, J., Urrutia, S. Vera, Zins, G.
Publikováno v:
A&A 618, L7 (2018)
The first observations of laser guide star photons Raman-scattered by air molecules above the Very Large Telescope (VLT) were reported in June 2017. The initial detection came from the Multi-Unit Spectroscopic Explorer (MUSE) optical integral field s
Externí odkaz:
http://arxiv.org/abs/1810.01419
Autor:
Vogt, F. P. A., Calia, D. Bonaccini, Hackenberg, W., Opitom, C., Comin, M., Schmidtobreik, L., Smoker, J., Blanchard, I., Contreras, M. Espinoza, Aranda, I., Milli, J., Jaffe, Y. L., Selman, F., Kolb, J., Hibon, P., Kuntschner, H., Madec, P. -Y.
(Abr.) Laser guide stars employed at astronomical observatories provide artificial wavefront reference sources to help correct (in part) the impact of atmospheric turbulence on astrophysical observations. Following the recent commissioning of the 4 L
Externí odkaz:
http://arxiv.org/abs/1706.07050
Autor:
Holzlohner, R., Rochester, S. M., Calia, D. Bonaccini, Budker, D., Higbie, J. M., Hackenberg, W.
Context: Sodium laser guide stars (LGS) are about to enter a new range of laser powers. Previous theoretical and numerical methods are inadequate for accurate computations of the return flux and hence for the design of the next-generation LGS systems
Externí odkaz:
http://arxiv.org/abs/0908.1527
Publikováno v:
Astron.Astrophys. 448 (2006) 29-42
We present millimeter CO line emission observations of 12 galaxies within the Abell 262 cluster, together with L_FIR data, in the context of a possible molecular gas deficiency within the region of the cluster center. Several indications of the prese
Externí odkaz:
http://arxiv.org/abs/astro-ph/0510517
Autor:
Davies, R. I., Bonaccini, D., Rabien, S., Hackenberg, W., Ott, T., Hippler, S., Neumann, U., Barden, M., Lehnert, M., Eisenhauer, F., Genzel, R.
The Laser Guide Star Facility for the VLT will be commissioned during 2003. This, of course, can only be the first step towards enhancing the scientific output of the VLT through adaptive optics. So in this contribution we propose the development of
Externí odkaz:
http://arxiv.org/abs/astro-ph/0108106
Autor:
Hackenberg, W., Eckart, A., Davies, R. I., Rabien, S., Ott, T., Kasper, M., Hippler, S., Quirrenbach, A.
We report on high angular resolution near-infrared (NIR) observations of three galaxy clusters at different redshifts using adaptive optics (AO). In the case of the barred spiral \object{UGC 1347} in Abell 262 we presented the first AO results obtain
Externí odkaz:
http://arxiv.org/abs/astro-ph/0005424
Publikováno v:
Exper.Astron. 10 (2000) 89-101
The ALFA laser subsystem uses a 4 watt continuous wave laser beam to produce an artificial guide star in the mesospheric sodium layer as a reference for wavefront sensing. In this article we describe the system design, focusing on the layout of the b
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911036
Publikováno v:
Exper.Astron. 10 (2000) 75-88
The optimal performance of adaptive optics systems can only be maintained if the wavefront reference is bright and compact. Experience has shown that both of these important criteria are remarkably difficult to achieve with laser guide stars, and thi
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911031