First Resolution of Microlensed Images of a Binary-Lens Event

Autor: Wu, Zexuan, Dong, Subo, Mérand, A., Kochanek, Christopher S., Mróz, Przemek, Shangguan, Jinyi, Christie, Grant, Tan, Thiam-Guan, Bensby, Thomas, Bland-Hawthorn, Joss, Buder, Sven, Eisenhauer, Frank, Gould, Andrew P., Kos, Janez, Natusch, Tim, Sharma, Sanjib, Udalski, Andrzej, Woillez, J., Buckley, David A. H., Thompson, I. B., Dayem, Karim Abd El, Alecian, Evelyne, Berdeu, Anthony, Berger, Jean-Philippe, Bourdarot, Guillaume, Brandner, Wolfgang, Davies, Richard I., Defrère, Denis, Dougados, Catherine, Drescher, Antonia, Eckart, Andreas, Fabricius, Maximilian, Feuchtgruber, Helmut, Schreiber, Natascha M. Förster, Garcia, Paulo, Genzel, Reinhard, Gillessen, Stefan, Heißel, Gernot, Hönig, Sebastian, Houlle, Mathis, Kervella, Pierre, Kreidberg, Laura, Lacour, Sylvestre, Lai, Olivier, Laugier, Romain, Bouquin, Jean-Baptiste Le, Leftley, James, Lopez, Bruno, Lutz, Dieter, Mang, Felix, Millour, Florentin, Montargès, Miguel, Nowacki, Hugo, Nowak, Mathias, Ott, Thomas, Paumard, Thibaut, Perraut, Karine, Perrin, Guy, Petrov, Romain, Petrucci, Pierre-Olivier, Pourre, Nicolas, Rabien, Sebastian, Ribeiro, Diogo C., Robbe-Dubois, Sylvie, Bordoni, Matteo Sadun, Santos, Daryl, Sauter, Jonas, Scigliuto, Jules, Shimizu, Taro T., Straubmeier, Christian, Sturm, Eckhard, Subroweit, Matthias, Sykes, Calvin, Tacconi, Linda, Vincent, Frédéric, Widmann, Felix

We resolve the multiple images of the binary-lens microlensing event ASASSN-22av using the GRAVITY instrument of the Very Large Telescope Interferometer (VLTI). The light curves show weak binary perturbations, complicating the analysis, but the joint

Externí odkaz: http://arxiv.org/abs/2409.13015

Heimdallr, Baldr and Solarstein: designing the next generation of VLTI instruments in the Asgard suite

Autor: Taras, Adam K., Robertson, J. Gordon, Allouche, Fatme, Courtney-Barrer, Benjamin, Carter, Josh, Crous, Fred, Cvetojevic, Nick, Ireland, Michael, Lagarde, Stephane, Martinache, Frantz, McGinness, Grace, N'Diaye, Mamadou, Robbe-Dubois, Sylvie, Tuthill, Peter

Publikováno v: Appl. Opt. 63, D41-D49 (2024)

High angular resolution imaging is an increasingly important capability in contemporary astrophysics. Of particular relevance to emerging fields such as the characterisation of exoplanetary systems, imaging at the required spatial scales and contrast

Externí odkaz: http://arxiv.org/abs/2403.04091

The GRAVITY+ Project: Towards All-sky, Faint-Science, High-Contrast Near-Infrared Interferometry at the VLTI

Autor: Collaboration, GRAVITY, Abuter, Roberto, Alarcon, Patricio, Allouche, Fatme, Amorim, Antonio, Bailet, Christophe, Bedigan, Helen, Berdeu, Anthony, Berger, Jean-Philippe, Berio, Philippe, Bigioli, Azzurra, Blaho, Richard, Boebion, Olivier, Bolzer, Marie-Lena, Bonnet, Henri, Bourdarot, Guillaume, Bourget, Pierre, Brandner, Wolfgang, Cardenas, Cesar, Conzelmann, Ralf, Comin, Mauro, Clénet, Yann, Courtney-Barrer, Benjamin, Dallilar, Yigit, Davies, Ric, Defrère, Denis, Delboulbé, Alain, Delplancke-Ströbele, Françoise, Dembet, Roderick, de Zeeuw, Tim, Drescher, Antonia, Eckart, Andreas, Édouard, Clemence, Eisenhauer, Frank, Fabricius, Maximilian, Feuchtgruber, Helmut, Finger, Gert, Schreiber, Natascha M. Förster, Fuenteseca, Eloy, Garcia, Enrique, Garcia, Paulo, Gao, Feng, Gendron, Eric, Genzel, Reinhard, Gil, Juan Pablo, Gillessen, Stefan, Gomes, Tiago, Gonté, Frédéric, Gouvret, Carole, Guajardo, Patricia, Guidolin, Ivan, Guieu, Sylvain, Guzmann, Ronald, Hackenberg, Wolfgang, Haddad, Nicolas, Hartl, Michael, Haubois, Xavier, Haußmann, Frank, Heißel, Gernot, Henning, Thomas, Hippler, Stefan, Hönig, Sebastian, Horrobin, Matthew, Hubin, Norbert, Jacqmart, Estelle, Jocou, Laurent, Kaufer, Andreas, Kervella, Pierre, Kirchbauer, Jean-Paul, Kolb, Johan, Korhonen, Heidi, Kreidberg, Laura, Krempl, Peter, Lacour, Sylvestre, Lagarde, Stephane, Lai, Olivier, Lapeyrère, Vincent, Laugier, Romain, Bouquin, Jean-Baptiste Le, Leftley, James, Léna, Pierre, Lewis, Steffan, Lutz, Dieter, Magnard, Yves, Mang, Felix, Marcotto, Aurelie, Maurel, Didier, Mérand, Antoine, Millour, Florentin, More, Nikhil, Nowack, Hugo, Nowak, Matthias, Oberti, Sylvain, Olivares, Francisco, Ott, Thomas, Pallanca, Laurent, Paumard, Thibaut, Perraut, Karine, Perrin, Guy, Petrov, Romain, Pfuhl, Oliver, Pourré, Nicolas, Rabien, Sebastian, Rau, Christian, Riquelme, Miguel, Robbe-Dubois, Sylvie, Rochat, Sylvain, Salman, Muhammad, Scherbarth, Malte, Schöller, Markus, Schubert, Joseph, Schuhler, Nicolas, Shangguan, Jinyi, Shchekaturov, Pavel, Shimizu, Taro, Scheithauer, Silvia, Sevin, Arnaud, Soenke, Christian, Soulez, Ferreol, Spang, Alain, Stadler, Eric, Straubmeier, Christian, Sturm, Eckhard, Sykes, Calvin, Tacconi, Linda, Tischer, Helmut, Tristram, Konrad, Vincent, Frédéric, von Fellenberg, Sebastiano, Uysal, Sinem, Widmann, Felix, Wieprecht, Ekkehard, Wiezorrek, Erich, Woillez, Julien, Yazıcı, Şenol, Zins, Gérard

The GRAVITY instrument has been revolutionary for near-infrared interferometry by pushing sensitivity and precision to previously unknown limits. With the upgrade of GRAVITY and the Very Large Telescope Interferometer (VLTI) in GRAVITY+, these limits

Externí odkaz: http://arxiv.org/abs/2301.08071

Building a GRAVITY+ Adaptive Optics Test Bench

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

Thermal imaging of dust hiding the black hole in the Active Galaxy NGC 1068

Autor: Rosas, Violeta Gamez, Isbell, Jacob W., Jaffe, Walter, Petrov, Romain G., Leftley, James H., Hofmann, Karl-Heinz, Millour, Florentin, Burtscher, Leonard, Meisenheimer, Klaus, Meilland, Anthony, Waters, Laurens B. F. M., Lopez, Bruno, Lagarde, Stephane, Weigelt, Gerd, Berio, Philippe, Allouche, Fatme, Robbe-Dubois, Sylvie, Cruzalebes, Pierre, Bettonvil, Felix, Henning, Thomas, Augereau, Jean-Charles, Antonelli, Pierre, Beckmann, Udo, van Boekel, Roy, Bendjoya, Philippe, Danchi, William C., Dominik, Carsten, Drevon, Julien, Gallimore, Jack F., Graser, Uwe, Heininger, Matthias, Hocde, Vincent, Hogerheijde, Michiel, Hron1, Josef, Impellizzeri, Caterina M. V., Klarmann, Lucia, Kokoulina, Elena, Labadie, Lucas, Lehmitz, Michael, Matter, Alexis, Paladini, Claudia, Pantin, Eric, Pott, Jorg-Uwe, Schert, Dieter, Soulain, Anthony, Stee, Philippe, Tristram, Konrad, Varga, Jozsef, Woillez, Julien, Wolf, Sebastian, Yoffe, Gideon, Zins, Gerard

In the widely accepted 'Unified Model' solution of the classification puzzle of Active Galactic Nuclei, the orientation of a dusty accretion torus around the central black hole dominates their appearance. In 'type-1' systems, the bright nucleus is vi

Externí odkaz: http://arxiv.org/abs/2112.13694