Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Mario van den Ancker"'
Autor:
Daniela P Iglesias, Olja Panić, Mario van den Ancker, Monika G Petr-Gotzens, Lionel Siess, Miguel Vioque, Ilaria Pascucci, René Oudmaijer, James Miley
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 519:3958-3975
Intermediate mass stars (IMSs) represent the link between low-mass and high-mass stars and cover a key mass range for giant planet formation. In this paper, we present a spectroscopic survey of 241 young IMS candidates with IR-excess, the most comple
Wasp-15 b is an inflated hot Jupiter orbiting a bright host star. Its low density and consequent large atmospheric scale height make it an excellent candidate for atmospheric characterization using transmission spectroscopy. In fact, it has previousl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cd75ef759506434f446233c4edf8c17
https://doi.org/10.5194/epsc2021-693
https://doi.org/10.5194/epsc2021-693
Autor:
Roy van Boekel, Leonard Burtscher, A.G.M. Pietrow, Sergio Fernández-Acosta, Ioannis Politopoulos, Willem-Jan de Wit, Bernhard R. Brandl, Ralf Siebenmorgen, Mario van den Ancker, Eric Pantin, Tibor Agócs, Konrad R. W. Tristram, Remko Stuik, Hans Ulrich Käufl
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy VIII.
Ground-based thermal-infrared observations have a unique scientific potential, but are also extremely challenging due to the need to accurately subtract the high thermal background. Since the established techniques of chopping and nodding need to be
Autor:
Davide Fedele, M. Giulia Ubeira-Gabellini, Daniel J. Price, Valentin Christiaens, Giuseppe Lodato, Mario van den Ancker, Carlo F. Manara
We report the discovery of a low-mass stellar companion around the young Herbig Be star MWC 297. We performed multi-epoch high-contrast imaging in the near infrared (NIR) with the Very Large Telescope (VLT)/Spectro-Polarimetric High-contrast Exoplane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43a922d4f1095cd671f4de22e7117331
Publikováno v:
Research Notes of the AAS. 4:231
Autor:
Mario van den Ancker
Publikováno v:
Research Notes of the AAS. 4:66
We report on new measurements with the SPHERE instrument on the VLT of a companion 3117 N (PA = 3453) of the Herbig Be star HD 259431 (MWC 147). Comparison with previous literature measurements shows the companion to have a common proper motion with
Autor:
Davide Fedele, Carlo F. Manara, Maria Giulia Ubeira Gabellini, Giuseppe Lodato, Mario van den Ancker
Publikováno v:
Proceedings of the International Astronomical Union. 14:250-251
Using a novel method for speckle noise suppression from SPHERE-IFS data, we performed a systematic survey for disks in 22 Herbig Ae/Be stars, spatially resolving five disks and detecting seven new companion candidates. The fraction of sources with sp
Autor:
Mario van den Ancker, Zac Jayachandran
Publikováno v:
Research Notes of the AAS. 3:113
Autor:
Joel Sanchez, Gerd Jakob, Nicola Di Lieto, Konrad R. W. Tristram, Stefan Sandrock, Lars Lundin, Alain Smette, Gert Finger, Hans Ulrich Käufl, Guillermo Valdes, Lars Venema, J. Stegmeier, Christian A. Hummel, Derek Ives, Pedro Baksai, M. Riquelme, Daniel Asmus, Florian Kerber, Mario van den Ancker, Philippe Duhoux, Danuta Dobrzycka, Dimitri Mawet, Leander Mehrgan, J. Taylor, Eric Pantin, Ralf Siebenmorgen
Publikováno v:
SPIE Proceedings.
We present an overview of the VISIR instrument after its upgrade and return to science operations. VISIR is the midinfrared imager and spectrograph at ESO’s VLT. The project team is comprised of ESO staff and members of the original VISIR consortiu
Autor:
Elyar Sedaghati, Oscar Gonzalez, Alain Smette, Neale P. Gibson, Sabine Moehler, Christian A. Hummel, Guillaume Blanchard, Gero Rupprecht, Danuta Dobrzycka, Jonathan Smoker, Mario van den Ancker, Henri M. J. Boffin, Joseph P. Anderson
Publikováno v:
Boffin, H M J, Sedaghati, E, Blanchard, G, Gonzalez, O, Moehler, S, Gibson, N, Ancker, M V D, Smoker, J, Anderson, J, Hummel, C, Dobrzycka, D, Smette, A & Rupprecht, G 2016, ' Regaining the FORS: making optical ground-based transmission spectroscopy of exoplanets with VLT+FORS2 possible again ', The Messenger . https://doi.org/10.1117/12.2232094
Transmission spectroscopy facilitates the detection of molecules and/or clouds in the atmospheres of exoplanets. Such studies rely heavily on space-based or large ground-based observatories, as one needs to perform time- resolved, high signal-to-nois
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84d0631d5a1a61680ec31e3a374977bc
https://pure.qub.ac.uk/en/publications/regaining-the-fors-making-optical-groundbased-transmission-spectroscopy-of-exoplanets-with-vltfors2-possible-again(b112889c-399f-4fa3-bbb1-f0c2828b57e5).html
https://pure.qub.ac.uk/en/publications/regaining-the-fors-making-optical-groundbased-transmission-spectroscopy-of-exoplanets-with-vltfors2-possible-again(b112889c-399f-4fa3-bbb1-f0c2828b57e5).html