Space and Planetary Science; Mechanical Engineering; Astronomy and Astrophysics; Instrumentation; Control and Systems Engineering; Electronic, Optical and Magnetic Materials
Abstract :
[en] European Southern Observatory (ESO)’s Very Large Telescope Interferometer (VLTI), Paranal, Chile, is one of the most proficient observatories in the world for high angular resolution astronomy. It has hosted several interferometric instruments operating in various bandwidths in the infrared. As a result, the VLTI has yielded countless discoveries and technological breakthroughs. We propose to ESO a new concept for a visitor instrument for the VLTI: Asgard. It is an instrumental suite comprised of four natively collaborating instruments: High-Efficiency Multiaxial Do-it ALL Recombiner (HEIMDALLR), an all-in-one instrument performing both fringe tracking and stellar interferometry with the same optics; Baldr, a Strehl optimizer; Beam-combination Instrument for studying the Formation and fundamental paRameters of Stars and planeTary systems (BIFROST), a combiner whose main science case is studying the formation processes and properties of stellar and planetary systems; and Nulling Observations of dusT and planeTs (NOTT), a nulling interferometer dedicated to imaging young nearby planetary systems in the L band. The overlap between the science cases across different spectral bands yields the idea of making the instruments complementary to deliver sensitivity and accuracy from the J to L bands. Asgard is to be set on the former AMBER optical table. Its control architecture is a hybrid between custom and ESO-compliant developments to benefit from the flexibility offered to a visitor instrument and foresee a deeper long-term integration into VLTI for an opening to the community.
Research Center/Unit :
CSL - Centre Spatial de Liège - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Martinod, Marc-Antoine; KU Leuven, Institute of Astronomy, Leuven, Belgium
Defrere, Denis ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Planetary & Stellar systems Imaging Laboratory ; KU Leuven, Institute of Astronomy, Leuven, Belgium
Ireland, Michael; The Australian National University, Canberra, Australia
Kraus, Stefan; University of Exeter, School of Physics and Astronomy, Exeter, United Kingdom
Martinache, Frantz; Observatoire de la Côte d’Azur, Nice, France
Tuthill, Peter; University of Sydney, Sydney Institute for Astronomy, School of Physics, Camperdown, New South Wales, Australia
Bigioli, Azzurra; KU Leuven, Institute of Astronomy, Leuven, Belgium
Bouzerand, Emilie; ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland
Bryant, Julia; University of Sydney, Sydney Institute for Astronomy, School of Physics, Camperdown, New South Wales, Australia
Chhabra, Sorabh; University of Exeter, School of Physics and Astronomy, Exeter, United Kingdom
Courtney-Barrer, Benjamin; The Australian National University, Canberra, Australia
Crous, Fred; University of Sydney, Sydney Institute for Astronomy, School of Physics, Camperdown, New South Wales, Australia
Cvetojevic, Nick; Observatoire de la Côte d’Azur, Nice, France
Dandumont, Colin ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Ertel, Steve; University of Arizona, Department of Astronomy and Steward Observatory, Tucson, Arizona, United States
Gardner, Tyler; University of Exeter, School of Physics and Astronomy, Exeter, United Kingdom
Garreau, Germain; KU Leuven, Institute of Astronomy, Leuven, Belgium
Glauser, Adrian M.; ETH Zurich, Institute for Particle Physics and Astrophysics, Zurich, Switzerland
Labadie, Lucas; Universität zu Köln, I. Physikalisches Institut, Cologne, Germany
Lagadec, Tiphaine; The Australian National University, Canberra, Australia
Laugier, Romain; KU Leuven, Institute of Astronomy, Leuven, Belgium
Mazzoli, Alexandra ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Mortimer, Daniel; University of Exeter, School of Physics and Astronomy, Exeter, United Kingdom
Norris, Barnaby; University of Sydney, Sydney Institute for Astronomy, School of Physics, Camperdown, New South Wales, Australia
Raskin, Gert; KU Leuven, Institute of Astronomy, Leuven, Belgium
Robertson, Gordon; University of Sydney, Sydney Institute for Astronomy, School of Physics, Camperdown, New South Wales, Australia
Sanny, Ahmed; Universität zu Köln, I. Physikalisches Institut, Cologne, Germany
Taras, Adam; University of Sydney, Sydney Institute for Astronomy, School of Physics, Camperdown, New South Wales, Australia
High-angular resolution and high contrast observations from Y to L band at the Very Large Telescope Interferometer with the Asgard Instrumental suite
Publication date :
27 June 2023
Journal title :
Journal of Astronomical Telescopes, Instruments, and Systems
ISSN :
2329-4124
eISSN :
2329-4221
Publisher :
SPIE-Intl Soc Optical Eng
Volume :
9
Issue :
02
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 101003096 - GAIA-BIFROST - GAIA-BInaries: Formation and fundamental pRoperties Of Stars and planeTary systems H2020 - 866070 - SCIFY - Self-Calibrated Interferometry for Exoplanet Spectroscopy
Name of the research project :
ASGARD
Funders :
ERC - European Research Council EU - European Union ARC - Australian Research Council
M.-A.M. has received funding from the European Union’s Horizon 2020 research and innovation
program (Grant No. 101004719). S.K. and S.C. acknowledge support from an ERC Consolidator
Grant (“GAIA-BIFROST,” Grant No. 101003096). S.K. and D.J.M. acknowledge support from
STFC (Grant No. ST/V000721/1). SCIFY (A.B., C.D., D.D., G.G., and R.L.) has received funding
from the European Research Council (ERC) under the European Union’s Horizon 2020 research
and innovation program (Grant No. CoG - 866070). We are grateful for the kind support and
constructive interactions with colleagues at ESO, in particular Frédéric Gonte, Xavier Haubois,
Antoine Mérand, Nicolas Schuhler, and Julien Woillez. This research was partially funded by
the Australian Government through the Australian Research Council (Grant No. LE220100126).
F. Eisenhauer et al., “GRAVITY: observing the universe in motion,” Messenger 143, 16–24 (2011).
B. Lopez et al., “MATISSE, the VLTI mid-infrared imaging spectro-interferometer,” A&A 659, A192 (2022).
R. Abuter et al., “Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole,” A&A 636, L5 (2020).
GRAVITY Collaboration, S. Lacour et al., “First direct detection of an exoplanet by optical interferometry. Astrometry and K-band spectroscopy of HR 8799 e,” A&A 623, L11 (2019).
V. Gámez Rosas et al., “Thermal imaging of dust hiding the black hole in NGC 1068,” Nature 602, 403–407 (2022).
GRAVITY Collaboration, R. Abuter et al., “The GRAVITY+ Project: towards all-sky, faint-science, high-contrast near-infrared interferometry at the VLTI,” Messenger 189, 17–22 (2022).
A. Mérand, “The VLTI roadmap,” Messenger 171, 14–19 (2018).
M. J. Ireland et al., “Image-plane fringe tracker for adaptive-optics assisted long baseline interferometry,” Proc. SPIE 10701, 1070111 (2018).
P. Lawson, Principles of Long Baseline Stellar Interferometry, National Aeronautics and Space Administration, Jet Propulsion Laboratory, California Institute of Technology (2000).
S. Kraus et al., “High spectral-resolution interferometry down to one micron with Asgard/BIFROST at VLTI: science drivers and project overview,” Proc. SPIE 12183, 121831S (2022).
D. J. Mortimer et al., “Beam combiner for the Asgard/BIFROST instrument,” Proc. SPIE 12183, 121831U (2022).
W. Fischer et al., “Redshifted absorption at He I λ 10830 as a probe of the accretion geometry of T Tauri stars,” ApJ 687, 1117–1144 (2008).
S. Chhabra et al., “Spectrograph design for the Asgard/BIFROST spectro-interferometric instrument for the VLTI,” Proc. SPIE 12183, 121830M (2022).
D. Defrère et al., “L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans,” Proc. SPIE 12183, 121830H (2022).
R. N. Bracewell, “Detecting nonsolar planets by spinning infrared interferometer,” Nature 274, 780–781 (1978).
R. B. Fernandes et al., “Hints for a turnover at the snow line in the giant planet occurrence rate,” ApJ 874, 81 (2019).
B. J. Fulton et al., “California legacy survey. II. Occurrence of giant planets beyond the ice line,” ApJS 255, 14 (2021).
G. Garreau et al., “Design of the VLTI/Hi-5 light injection system,” Proc. SPIE 12183, 1218320 (2022).
A. Sanny et al., “Development of the four-telescope photonic nuller of Hi-5 for the characterization of exoplanets in the mid-IR,” Proc. SPIE 12183, 1218316 (2022).
C. Dandumont et al., “Technical requirements and optical design of the Hi-5 spectrometer,” Proc. SPIE 12183, 121831Y (2022).
J. R. P. Angel and N. J. Woolf, “An imaging nulling interferometer to study extrasolar planets,” ApJ 475, 373–379 (1997).
R. Errmann et al., “Interferometric nulling of four channels with integrated optics,” Appl. Opt. 54, 7449 (2015).
Gaia Collaboration, A. Vallenari et al., “GAIA data release 3: summary of the content and survey properties,” arXiv:2208.00211 (2022).
G.A. Feiden and B. Chaboyer, “Reevaluating the mass-radius relation for low-mass, main-sequence stars,” ApJ 757, 42 (2012).
A. W. Mann et al., “How to constrain your M Dwarf: measuring effective temperature, bolometric luminosity, mass, and radius,” ApJ 804, 64 (2015).
K. G. Stassun, G. A. Feiden, and G. Torres, “Empirical tests of pre-main-sequence stellar evolution models with eclipsing binaries,” New A Rev. 60, 1–28 (2014).
GRAVITY Collaboration, R. Garcia Lopez et al., “A measure of the size of the magnetospheric accretion region in TW Hydrae,” Nature 584, 547–550 (2020).
E. Hone et al., “Gas dynamics in the inner few AU around the Herbig B[e] star MWC297. Indications of a disk wind from kinematic modeling and velocity-resolved interferometric imaging,” A&A 607, A17 (2017).
G. Weigelt et al., “VLTI-AMBER velocity-resolved aperture-synthesis imaging of η Carinae with a spectral resolution of 12 000. Studies of the primary star wind and innermost wind-wind collision zone,” A&A 594, A106 (2016).
GRAVITY Collaboration, R. Abuter et al., “First light for GRAVITY: phase referencing optical interferometry for the very large telescope interferometer,” A&A 602, A94 (2017).
GRAVITY Collaboration, E. Sturm et al., “Spatially resolved rotation of the broad-line region of a quasar at sub-parsec scale,” Nature 563, 657–660 (2018).
C. P. Nicholls et al., “CRIRES-POP: a library of high resolution spectra in the near-infrared. II. Data reduction and the spectrum of the K giant 10 Leonis,” A&A 598, A79 (2017).
A. L. Wallace, M. J. Ireland, and C. Federrath, “Constraints on planets in nearby young moving groups detectable by high-contrast imaging and GAIA astrometry,” MNRAS 508, 2515–2523 (2021).
A. L. Wallace and M. J. Ireland, “The likelihood of detecting young giant planets with high-contrast imaging and interferometry,” MNRAS 490, 502–512 (2019).
C. Dandumont et al., “VLTI/Hi-5: detection yield predictions for young giant exoplanets,” Proc. SPIE 12183, 1218327 (2022).
R. Laugier et al., “Asgard/nott: L-band nulling interferometry at the vlti - i. simulating the expected high-contrast performance,” A&A 671, A110 (2023).
R. Laugier et al., “The expected performance of nulling at the VLTI down to five mas,” Proc. SPIE 12183, 1218321 (2022).
N. van der Marel et al., “New insights into the nature of transition disks from a complete disk survey of the lupus star-forming region,” ApJ 854, 177 (2018).
N. van der Marel et al., “On the diversity of asymmetries in gapped protoplanetary disks,” ApJ 161, 33 (2021).
B. J. Norfolk et al., “Dust traps and the formation of cavities in transition discs: a millimetre to sub-millimetre comparison survey,” MNRAS 502, 5779–5796 (2021).
GRAVITY Collaboration, M. Nowak et al., “Peering into the formation history of β Pictoris b with VLTI/ GRAVITY long-baseline interferometry,” A&A 633, A110 (2020).
Q. Kral et al., “Exozodiacal clouds: hot and warm dust around main sequence stars,” Astron. Rev. 13, 69–111 (2017).
V. Faramaz et al., “Inner mean-motion resonances with eccentric planets: a possible origin for exozodiacal dust clouds,” MNRAS 465, 2352–2365 (2017).
A. Bonsor et al., “Using warm dust to constrain unseen planets,” MNRAS 480, 5560–5579 (2018).
J. K. Rigley and M. C. Wyatt, “Dust size and spatial distributions in debris discs: predictions for exozodiacal dust dragged in from an exo-Kuiper belt,” MNRAS 497, 1143–1165 (2020).
D. Defrère et al., “The HOSTS survey: evidence for an extended dust disk and constraints on the presence of giant planets in the habitable zone of β Leo,” ApJ 161, 186 (2021).
D. Defrère et al., “Direct imaging of exoEarths embedded in clumpy debris disks,” Proc. SPIE 8442, 84420M (2012).
S. Ertel et al., “The HOSTS survey for exozodiacal dust: observational results from the complete survey,” ApJ 159, 177 (2020).
J. B. Le Bouquin et al., “PIONIER: a 4-telescope visitor instrument at VLTI,” A&A 535, A67 (2011).
S. Ertel et al., “A near-infrared interferometric survey of debris-disk stars. IV. An unbiased sample of 92 southern stars observed in H band with VLTI/PIONIER,” A&A 570, A128 (2014).
V. Coudé du Foresto et al., “FLUOR fibered beam combiner at the CHARA array,” Proc. SPIE 4838, 280–285 (2003).
N. J. Scott et al., “Jouvence of FLUOR: upgrades of a fiber beam combiner at the CHARA array,” J. Astron. Instrum. 2, 1340005 (2013).
F. Kirchschlager et al., “First L band detection of hot exozodiacal dust with VLTI/MATISSE,” MNRAS 499, L47–L52 (2020).
