Zobrazeno 1 - 10 of 233 pro vyhledávání: '"A. J. V. Garcia"'
1
Akademický článek
Assessment of continuous and alternating CO2 injection under Brazilian-pre-salt-like conditions
Autor: R. O. Lima, A. de L. Cunha, J. A. O. Santos, A. J. V. Garcia, J. P. L. dos Santos
Publikováno v: Journal of Petroleum Exploration and Production Technology, Vol 10, Iss 7, Pp 2947-2956 (2020)
Abstract Carbonate rocks have become very important in Brazil with pre-salt reservoir discoveries in Santos and Campos Basins. Since then, great efforts in research and technology have been made to characterize and develop these reservoirs. In this s
Externí odkaz: https://doaj.org/article/063f2c0f40b74ed2b164b7299fd28e75
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2
Akademický článek
Space Imaging Point Source Detection and Characterization
Autor: Francisco S. F. Ribeiro, Paulo J. V. Garcia, Miguel Silva, Jaime S. Cardoso
Publikováno v: IEEE Access, Vol 12, Pp 90442-90460 (2024)
Point source detection algorithms play a pivotal role across diverse applications, influencing fields such as astronomy, biomedical imaging, environmental monitoring, and beyond. This article reviews the algorithms used for space imaging applications
Externí odkaz: https://doaj.org/article/cd946246b5fa4530bc2324290a5fd733
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5
Assessment of continuous and alternating CO2 injection under Brazilian-pre-salt-like conditions
Autor: Rodolfo Lima, A. J. V. Garcia, José Anderson Santos, J. P. L. dos Santos, A. de L. Cunha
Publikováno v: Journal of Petroleum Exploration and Production Technology, Vol 10, Iss 7, Pp 2947-2956 (2020)
Carbonate rocks have become very important in Brazil with pre-salt reservoir discoveries in Santos and Campos Basins. Since then, great efforts in research and technology have been made to characterize and develop these reservoirs. In this sense, out
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc37faf5325ac3f59cf10945a5977a1d
https://doaj.org/article/063f2c0f40b74ed2b164b7299fd28e75
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6
A geometric distance to the supermassive black Hole of NGC 3783
Autor: N. M. Förster Schreiber, M. L. Bolzer, Pierre-Olivier Petrucci, E. Sturm, Jason Dexter, Thibaut Paumard, Florentin Millour, Christopher A. Onken, Christian Straubmeier, Sebastian F. Hönig, Daniel Rouan, Makoto Kishimoto, Reinhard Genzel, Yann Clénet, P. T. de Zeeuw, Julien Woillez, Ric Davies, D. Kaltenbrunner, António Amorim, A. Drescher, Jinyi Shangguan, S. von Fellenberg, D. Gratadour, Misty C. Bentz, Linda J. Tacconi, J. Stadler, Karine Perraut, Felix Widmann, P. Vermot, Amiel Sternberg, Thomas Ott, Paulo J. V. Garcia, Rachel Street, Wolfgang Brandner, Odele Straub, Dieter Lutz, Hagai Netzer, Mercedes Prieto, Taro Shimizu, Stefan Gillessen, Konrad R. W. Tristram, Oliver Pfuhl, M. Bauböck, Frank Eisenhauer, Andreas Eckart, Guy Perrin, Sylvestre Lacour
Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 654, pp.A85. ⟨10.1051/0004-6361/202141426⟩
Astron.Astrophys.
Astron.Astrophys., 2021, 654, pp.A85. ⟨10.1051/0004-6361/202141426⟩
Astronomy and Astrophysics, 654, 1-14
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: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1aab43db09055b853d3eadf05fdca70b
https://hal.archives-ouvertes.fr/hal-03441771
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7
Constraining particle acceleration in Sgr A⋆ with simultaneous GRAVITY, Spitzer, NuSTAR, and Chandra observations
Autor: Wolfgang Brandner, A. Jiménez-Rosales, Mark Gurwell, Stefan Hippler, Christian Straubmeier, Th. Henning, Fiona A. Harrison, Jason Dexter, N. M. Förster Schreiber, F. Vincent, Pierre Kervella, Daryl Haggard, S. Yazici, Silvia Scheithauer, Oliver Pfuhl, Y. Dallilar, T. Taro Shimizu, Idel Waisberg, Odele Straub, K. Foster, Felix Widmann, Sera Markoff, Dieter Lutz, J.-B. Le Bouquin, M. Bauböck, Matthew Horrobin, Yann Clénet, P. T. de Zeeuw, Gabriele Ghisellini, Howard A. Smith, Frederick K. Baganoff, Daniel Stern, Thibaut Paumard, Eckhard Sturm, Ric Davies, M. Nowak, Andreas Eckart, Andreas Kaufer, Sebastian Rabien, Laurent Jocou, Paulo J. V. Garcia, Ekkehard Wieprecht, Reinhard Genzel, Jinyi Shangguan, G. Rodríguez-Coira, Patrick Lowrance, C. J. Hailey, Thomas Ott, S. Zhang, A. Drescher, G. Ponti, Giovanni G. Fazio, Steven P. Willner, S. D. von Fellenberg, Linda J. Tacconi, Maryam Habibi, H. Bonnet, Julien Woillez, V. Lapeyrère, Sylvestre Lacour, António Amorim, Erich Wiezorrek, Xavier Haubois, Guy Perrin, J. Neilsen, K. Mori, Eric Gendron, Frank Eisenhauer, G. Heißel, Pierre Léna, Joseph L. Hora, Karine Perraut, Charles F. Gammie, Feng Gao, G. Witzel, Gérard Zins, Mark Morris, André Young, Julia Stadler, Jean-Phillipe Berger, Hope Boyce, Stefan Gillessen, Lieselotte Jochum, Roberto Abuter
Publikováno v: Astronomy and Astrophysics, 654, 1-18
Astronomy & Astrophysics, 654:A22. EDP Sciences
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 654, pp.A22. ⟨10.1051/0004-6361/202140981⟩
Astronomy & Astrophysics
We report the time-resolved spectral analysis of a bright near-infrared and moderate X-ray flare of Sgr A*. We obtained light curves in the $M$-, $K$-, and $H$-bands in the mid- and near-infrared and in the $2-8~\mathrm{keV}$ and $2-70~\mathrm{keV}$
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b318bce0dbccbb512624716eecc8f67
https://doi.org/10.1051/0004-6361/202140981
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8
Methods for the development of an alignment platform for an astronomical instrument with application to the METIS instrument at the ELT
Autor: André Boné, Paulo J. V. Garcia, Mercedes E. Filho, António Amorim
Publikováno v: Journal of Astronomical Telescopes, Instruments, and Systems. 7
Hexapods are very common in astronomy as a mechanism to provide a stiff mount or a precision alignment tool. Here, we present a lumped model for a general symmetric hexapod that allows us to compute the load distribution under external forces, the he
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9482499d5b1aad60890932422efb2c18
https://doi.org/10.1117/1.jatis.7.2.028001
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9
Detection of faint stars near Sagittarius A* with GRAVITY
Autor: Christian Straubmeier, Stefan Hippler, Th. Henning, Feng Gao, Gérard Zins, Maryam Habibi, Linda J. Tacconi, Oliver Pfuhl, V. Lapeyrère, Xavier Haubois, Guy Perrin, A. Jiménez-Rosales, Felix Widmann, G. Heißel, António Amorim, Stefan Gillessen, Yann Clénet, P. T. de Zeeuw, H. Bonnet, Jason Dexter, Paulo J. V. Garcia, Julien Woillez, Ric Davies, Lieselotte Jochum, Eric Gendron, G. Rodríguez-Coira, Eckhard Sturm, Laurent Jocou, Jinyi Shangguan, S. Yazici, T. Taro Shimizu, Thibaut Paumard, M. Nowak, M. Bauböck, Karine Perraut, Reinhard Genzel, N. M. Förster Schreiber, Wolfgang Brandner, Matthew Horrobin, Julia Stadler, Thomas Ott, Idel Waisberg, A. Drescher, S. von Fellenberg, Sebastian Rabien, Ekkehard Wieprecht, F. Vincent, Pierre Kervella, Jean-Philippe Berger, Odele Straub, Dieter Lutz, J.-B. Le Bouquin, Sylvestre Lacour, Silvia Scheithauer, Y. Dallilar, Andreas Kaufer, Frank Eisenhauer, Pierre Léna, Erich Wiezorrek, Roberto Abuter
Publikováno v: Astron.Astrophys.
Astron.Astrophys., 2021, 645, pp.A127. ⟨10.1051/0004-6361/202039544⟩
Astronomy and Astrophysics, 645, 1-10
International audience; The spin of the supermassive black hole that resides at the Galactic Center can, in principle, be measured by accurate measurements of the orbits of stars that are much closer to Sgr A* than S2, the orbit of which recently pro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15af2614a73b2322746873c993267b30
https://doi.org/10.1051/0004-6361/202039544
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10
The GRAVITY Young Stellar Object survey VIII. Gas and dust faint inner rings in the hybrid disk of HD141569
Autor: R. Grellmann, O. Pfuhl, V. Ganci, Eric Gendron, Feng Gao, Stefan Hippler, V. Coudé du Foresto, Guy Perrin, Gérard Rousset, Thibaut Paumard, Frederic H. Vincent, Catherine Dougados, A. Wojtczak, R. Genzel, A. Drescher, A. de Valon, Lucas Labadie, Gilles Duvert, E. F. van Dishoeck, G. Heissel, S. D. von Fellenberg, V. Lapeyrère, Mercedes E. Filho, Christian Straubmeier, Karine Perraut, Julia Stadler, Th. Henning, Paola Caselli, Felix Widmann, Z. Hubert, Stefan Gillessen, Matthew Horrobin, António Amorim, Odele Straub, R. Garcia Lopez, J.-B. Le Bouquin, L. Klarmann, Paulo J. V. Garcia, Jean-Phillipe Berger, G. Heißel, J. Sanchez-Bermudez, Andreas Eckart, Pierre Kervella, Silvia Scheithauer, Sylvestre Lacour, T. Ott, Frank Eisenhauer, Pierre Léna, T. Taro Shimizu, M. Bauböck, A. Caratti o Garatti, A. Jiménez-Rosales, Myriam Benisty, F. Eupen, Julien Woillez, Eckhard Sturm, Laurent Jocou, Wolfgang Brandner, Yann Clénet, P. T. de Zeeuw, Jinyi Shangguan
Publikováno v: Astronomy & Astrophysics, 655, 1-22
The formation and evolution of planetary systems impact the primordial accretion disk. HD141569 is the only known pre-main sequence star characterized by a hybrid disk. Observations probed the outer-disk structure showing a complex system of rings an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59e09f54766957696a97a48cdcd435c0
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