391 citations · 4.6k across the 83 of their papers we have counts for
84 papers
Mid-IR Water-Vapor Seeing: Implications for ELT/METIS High-Contrast Imaging from VLTI Data
Abhirami S Raghu, Prashant Pathak, Olivier Absil +7
Direct imaging and characterization of rocky exoplanets remains one of the central challenges in exoplanetary science. The mid-infrared (mid-IR) offers a favorable high-contrast im…
METIS high-contrast imaging simulations: From instrument modelling to science readiness
Gilles Orban de Xivry, Olivier Absil, Iain Hammond +9
The Mid-infrared Extremely Large Telescope (ELT) Imager and Spectrograph (METIS) instrument, expected to see first light in early 2030, aims to detect and characterise exoplanets a…
Charge migration characterization in the METIS H2RG detectors
Danny Gasman, Benoît Serra, Roy van Boekel +4
The Mid-infrared ELT Imager and Spectrograph (METIS) is one of the first-light instruments of the Extremely Large Telescope (ELT). For the L and M band, the instrument makes use of…
Maximising the mid-infrared high-contrast performance of ELT/METIS despite water vapour seeing
Olivier Absil, Gilles Orban de Xivry, Prashant Pathak +7
The Mid-infrared ELT Imager and Spectrograph (METIS) will be equipped with a SCAO system delivering Strehl ratios above 90% at L band (3.5 - 4.1 um) and close to 99% at N band (8 -…
STARSFLUX: an all-sky catalogue of absolute spectro-photometric calibrators from 0.3 to 30 m
Violeta Gámez Rosas, Michiel Hogerheijde, Roy van Boekel +10
Obtaining accurate fluxes for faint sources from the ground at near- and mid-infrared wavelengths is challenging because of rapidly varying atmospheric absorption, and is often lim…
The complex inner disk of the Herbig Ae star HD 100453 with VLTI/MATISSE
L. N. A. van Haastere, J. Varga, M. R. Hogerheijde +35
The inner regions of planet-forming disks hold invaluable insights for our understanding of planet formation. The disk around the Herbig star HD 100453 presents one such environmen…
Detectability of resolved hydrogen lines from the accretion shock at gas giants and their circumplanetary discs
Gabriel-Dominique Marleau, Thomas Henning, Roy van Boekel +3
Fewer gas giants have been caught in their accretion phase than mature ones are known. Extremely Large Telescope (ELT) instruments will have a higher sensitivity and a smaller inne…
Evidence for an accretion bridge in the DX Cha circumbinary system from VLTI/MATISSE observations
Tímea Juhász, József Varga, Péter Ábrahám +20
DX Cha (HD 104237) is a spectroscopic binary consisting of a Herbig A7.5Ve-A8Ve primary star and a K3-type companion. Here we report on new micrometer interferometric observ…
ASASSN-21js: A multi-year transit of a ringed disc
T. H. Pramono, M. A. Kenworthy, R. van Boekel
The early-type star ASASSN-21js started to fade in 2021, as was detected by the All Sky Automated Survey for Supernovae, undergoing a multi-year eclipse that is still underway. We…
METIS high-contrast imaging: from final design to manufacturing and testing
Olivier Absil, Matthew Kenworthy, Christian Delacroix +21
The Mid-infrared ELT Imager and Spectrograph (METIS) is one of the first-generation scientific instruments for the ELT, built under the supervision of ESO by a consortium of resear…
Characterization of a Longwave HgCdTe GeoSnap Detector
Rory Bowens, Michael R. Meyer, Taylor L. Tobin +6
New longwave HgCdTe detectors are critical to upcoming plans for ground-based infrared astronomy. These detectors, with fast-readouts and deep well-depths, will be key components o…
The SPHERE view of the Taurus star-forming region
A. Garufi, C. Ginski, R. G. van Holstein +31
The sample of planet-forming disks observed by high-contrast imaging campaigns over the last decade is mature enough to enable the demographical analysis of individual star-forming…
Images of Betelgeuse with VLTI/MATISSE across the Great Dimming
J. Drevon, F. Millour, P. Cruzalèbes +31
From Nov. 2019 to May 2020, the red supergiant star Betelgeuse experienced an unprecedented drop of brightness in the visible domain called the great dimming event. Large atmospher…
Mid-infrared evidence for iron-rich dust in the multi-ringed inner disk of HD 144432
J. Varga, L. B. F. M. Waters, M. Hogerheijde +40
Context. Rocky planets form by the concentration of solid particles in the inner few au regions of planet-forming disks. Their chemical composition reflects the materials in the di…
XUE. Molecular inventory in the inner region of an extremely irradiated Protoplanetary Disk
María Claudia Ramirez-Tannus, Arjan Bik, Lars Cuijpers +24
We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, that focuses on the characterization of planet forming disks in massive…
Thermal Emission from the hot Jupiter WASP-103b in J and Ks Bands
Yaqing Shi, Wei Wang, Gang Zhao +8
Hot Jupiters, particularly those with temperature higher than 2000 K are the best sample of planets that allow in-depth characterization of their atmospheres. We present here a the…
Spatially resolving polycyclic aromatic hydrocarbons in Herbig Ae disks with VISIR-NEAR at the VLT
Gideon Yoffe, Roy van Boekel, Aigen Li +15
We use the long-slit spectroscopy mode of the VISIR-NEAR experiment to perform diffraction-limited observations of eight nearby Herbig Ae protoplanetary disks. We extract spectra f…
Forbidden emission lines in protostellar outflows and jets with MUSE
Lizxandra Flores-Rivera, Mario Flock, Nicolás Kurtovic +14
Forbidden emission lines in protoplanetary disks are a key diagnostic in studies of the evolution of the disk and the host star. We report spatially resolved emission lines, [OI] 6…
Impact of water vapor seeing on mid-infrared high-contrast imaging at ELT scale
Olivier Absil, Christian Delacroix, Gilles Orban de Xivry +9
The high-speed variability of the local water vapor content in the Earth atmosphere is a significant contributor to ground-based wavefront quality throughout the infrared domain. U…
Detection of Na and K in the atmosphere of the hot Jupiter HAT-P-1b with P200/DBSP
Guo Chen, Hongchi Wang, Roy van Boekel +1
We present a new optical transmission spectrum of the hot Jupiter HAT-P-1b based on two transits observed with the Double Spectrograph (DBSP) on the Palomar 200-inch (P200) telesco…
Locating dust and molecules in the inner circumstellar environment of R~Sculptoris with MATISSE
Julien Drevon, Florentin Millour, Pierre Cruzalèbes +49
AGB stars are one of the main sources of dust production in the Galaxy. However, it is not clear what this process looks like and where the dust is condensing in the circumstellar…
The extended atmosphere and circumstellar environment of the cool evolved star VX Sagittarii as seen by MATISSE
A. Chiavassa, K. Kravchenko, M. Montargès +50
Context. VX Sgr is a cool, evolved, and luminous red star whose stellar parameters are difficult to determine, which affects its classification. Aims. We aim to spatially resolve t…
VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris
K. -H. Hofmann, A. Bensberg, D. Schertl +58
Context: FS Canis Majoris (FS CMa, HD 45677) is an unclassified B[e] star surrounded by an inclined dust disk. The evolutionary stage of FS CMa is still debated. Perpendicular to t…
Accreting protoplanets: Spectral signatures and magnitude of gas and dust extinction at H alpha
G. -D. Marleau, Y. Aoyama, R. Kuiper +14
Accreting planets have been seen at Ha (H alpha), but targeted searches have not been fruitful. For planets, accretion tracers should come from the shock itself, exposing them to e…