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Precision Integrated Optics Near-infrared Imaging ExpeRiment

PIONIER in a beautiful 4min movie:
https://youtu.be/7YUSdauRZNk


PIONIER stands for Precision Integrated-Optics Near-infrared Imaging ExpeRiment. PIONIER is a 4-telescope instrument for the VLTI that combines four ATs or four UTs using an integrated optics combiner. It provides low spectral resolution in H band. PIONIER is designed for imaging with a specific emphasis on precision closure-phases and visibilities. PIONIER has been approved by STC at spring 2009 and first science runs started in October 2010.

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  • 2017-03-02 : A&A highlights the legacy paper of PIONIER about Herbig YSO.
  • 2016-03-09 : ESO press release and INSU press release on the first image of RAPID/PIONIER
  • 2015-06-15 : ESO press release on the new RAPID detector
  • 2015-03-20 : Images from LP Herbig YSO
  • 2015-02-26 : PIONIER offered in the ESO Call-for-proposal P96 in service and visitor mode.
  • 2014-12-10 : Installation of the RAPID camera. Test on-going.
  • 2014-11-03 : Press-release "VLTI Detects Exozodiacal Light" ESO/ OSUG
  • 2014-07-01 : OPC answers for P94, about 52 nights scheduled (89 requested).
  • 2014-06-10 : First test of the RAPID camera on-sky. Camera is shipped back to IPAG for further improvements.
  • 2014-04-01 : PIONIER data serve as reference dataset for the 2014 "Imaging Beauty Contest"
  • 2014-01-13 : PIONIER workshop at IPAG (see vlti-pionier.sciencesconf.org).
  • 2014-01-01 : OPC answers for P93, about 51 nights scheduled.
  • 2013-11-06 : First 4T fringes with RAPID detector at IPAG.
  • 2013-07-01 : OPC answers for P92, about 30 nights scheduled (pressure was 3.5 on ATs).
  • 2013-02-22 : Failure of the PIONIER workstation (wpnr) -- Replacement done thanks to the great support from Paranal
  • 2013-01-01 : OPC answers for P91, about 43 nights scheduled (pressure was 4.8 on ATs).
  • 2012-07-10 : OPC answers for P90: about 51 nights scheduled.
  • 2012-05-12 : First scientific observations with 4xUTs. Demonstration of sensitivity better than H=10.
  • 2012-04-01 : Commissioning of the K-band in PIONIER. Working fine (Kmag~5).
  • 2012-01-01 : Failure of the 4T-AC-H combiner, replaced by the older 4T-ABCD-H
  • 2011-12-23 : OPC answers for P89, about ~25 nights scheduled.
  • 2011-12-07 : Vampire Star Reveals its Secrets (UJF, eso1148, Le Monde, CNRS, Science&Vie).
  • 2011-03-17 : First 4xUTs fringes ever, and made with PIONIER (UJF, ESO ann11021).
  • 2010-10-27 : First fringes with 4xATs (CNRS, UJF, ESO ann1081, Dauphine Libere). 

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Sample of publications 

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  • 2021 Nature Astrophysic, Cassan et al., "Microlensing mass measurement from images of rotating gravitational arcs"

  • 2019Natur.567..200P Pietrzyński, G et al. "A distance to the Large Magellanic Cloud that is precise to one per cent"

  • [...]
  • 2016MNRAS.458.3272K Kiefer, F. et al. "Masses of the components of SB2 binaries observed with Gaia - III. Accurate SB2 orbits for 10 binaries and masses of HIP 87895"
  • 2017A&A...597A.137K P. Kervella et al. "The radii and limb darkenings of α Centauri A and B . Interferometric measurements with VLTI/PIONIER"
  • accepted in A&A L. Chen et al. "A study of dust properties in the inner sub-au region of the Herbig Ae star HD 169142 with VLTI/PIONIER"
  • accepted in A&A M. Montarges et al. "The convective surface of the red supergiant Antares"
  • accepted in A&A C.A. Hummel et al. "Orbit of the Mercury-Manganese binary 41 Eridani"
  • accepted in A&A G. Dalla Vedova et al. "VLTI/PIONIER images the Achernar disk swell"
  • accepted in A&A M. Wittkowski et al. "Aperture synthesis imaging of the carbon AGB star R Sculptoris"
  • accepted in A&A B. Lazareff, J.P. Berger, et al. "Statistical study of Herbig AeBe disks at milliarcsecond scale. A survey in H band using PIONIER-VLTI"
  • accepted in MNRAS J.M. Apellaniz, et a., "A close encounter of the massive kind"
  • accepted in A&A J.B Le Bouquin, et al., "Resolved astrometric orbits of ten O-type binaries"
  • accepted in A&A S. Ertel, et al., "A near-infrared interferometric survey of debris-disc stars. V. PIONIER search for variability"
  • accepted in A&A P. Kervella, et al., "The red dwarf pair GJ65AB: inflated, spinning twins of Proxima"
  • 2016A&A...587A.117B J. Breitfelder, et al., "Observational calibration of the projection factor of Cepheids. II. Application to nine Cepheids with HST/FGS parallax measurements"
  • 2016A&A...588A.130M M. Montarges et al., "The close circumstellar environment of Betelgeuse III. VLTI/PIONIER interferometric monitoring of the photosphere"
  • 2016MNRAS.455.3303H J.-L. Halbwachs, H.M.J. Boffin, J.-B. Le Bouquin, F. Kiefer et al., "Masses of SB2 binaries observed with Gaia. II. PIONIER interferometric observations for Gaia validation"
  • 2016A&A...586A..11M A. Matter, L. Labadie, J.-C. Augereau, J. Kluska et al., "Inner disk clearing around the Herbig Ae star HD139614: Evidence for a planet-induced gap ?"
  • submitted to A&A J.B Le Bouquin, et al., "The limb darkening and featureless surfaces of the yellow supergiants Canopus, Wezen and eps Peg"
  • 2015A&A...579A..68G A. Gallenne, et al., "Robust high-contrast companion detection from interferometric observations"
  • 2015A&A...576A..64B J. Breitfelder, et al., "Observational calibration of the projection factor of Cepheids I. The Type II Cepheid kappa Pavonis"
  • 2015A&A...574A..41A F. Anthonioz, et al., "The VLTI/PIONIER survey of Southern T Tauri stars (I) First results."
  • 2014ApJS..215...15S: H. Sana, et al., "Southern Massive Stars at High Angular Resolution: Observational campaign and Companion Detection"
  • 2014A&A...570A.128E: S. Ertel, et al., "A near-infrared interferometric survey of debris-disc stars (IV) An unbiased sample of 92 southern stars with PIONIER"
  • 2014A&A...570A.127M: L. Marion, et al., "Searching for faint companions with PIONIER (II) 92 main sequence stars from the Exozodi survey"
  • 2014AJ....148..114M: P. Mayer, et al., "The three body system delta Circini"
  • 2014A&A...568A..94N: A. Nasseri, et al., "HD152246: a new high-mass triple system"
  • 2014A&A...569A..10A: A. Domiciano de Souza, et al., "The environment of the fast rotating star Achernar"
  • 2014A&A...568A..85P: T. Paumard, et al., "GCIRS7, a pulsating M1 supergiant at the Galactic centre."
  • 2014A&A...567A..51C: A. Carmona, et al., "Constraining the structure of the transition disk HD 135344B"
  • 2014A&A...565L...2D: E. Di Folco et al., "GG Tau: the fifth element"
  • 2014A&A...564A..80K: J. Kluska, et al., "Semi-Parametric Approach for image Reconstruction of Young Stellar objects"
  • 2014A&A...564A..93M: J. Menu, et al., "On the structure of the transition disk around TW Hya"
  • 2014A&A...564A...1B: H. Boffin et al., "Roche-lobe filling factor of mass-transferring red giants - the PIONIER view"
  • 2014A&A...561A.101L: J.B Le Bouquin et al.: "Refined masses and distance of the young binary Haro 1-14 C"
  • 2014A&A...561L...3G: A. Gallenne et al., "Multiplicity of Galactic Cepheids from long-baseline interferometry (II) The Companion of AX Circini revealed with VLTI/PIONIER"
  • 2014A&A...561A..46C: E. Choquet et al., "The close environment of high-mass X-ray binaries at high angular resolution"
  • 2013MNRAS.435.2501L: R. Lachaume and J.P. Berger, "Bandwidth smearing in infrared long-baseline interferometry. Application to stellar companion search"
  • 2013A&A...553A.131S: H. Sana, J.-B. Le Bouquin et al.: "Three-dimensional orbits of the triple-O stellar system HD150136"
  • 2013A&A...552A..4O: J. Olofsson, M. Benisty et al., "Sculpting the disk around T Chamaeleontis: an interferometric view"
  • 2013A&A...551A..121L: J.-B. Le Bouquin, H. Beust, G. Duvert et al, "Masses and age of the Chemically Peculiar double-lined binary χ Lupi"
  • 2012A&A...546L..9D: D. Defrère, J. Lebreton, J.-B. Le Bouquin, A.-M. Lagrange et al, "Hot circumstellar material resolved around beta Pictoris with VLTI/PIONIER"
  • 2012MNRAS.423.2711D: De Becker M., Sana H., Absil O., Le Bouquin J-B. et al, "The particle accelerator HD 167971 revealed by long baseline interferometry"
  • 2012A&A...540A..76S: Stefl S., Le Bouquin J-B. et al, "Activity in the circumstellar disk of the Be star 48 Lib"
  • 2012A&A...541A..89L: Le Bouquin, J.-B.; Absil, O., "On the sensitivity of closure phases to faint companions in optical long baseline interferometry"
  • 2012A&A...543A..31L: B. Lazareff, et al., "A novel technique to control differential birefringence in optical interferometers. Demonstration on the PIONIER-VLTI instrument"
  • 2011A&A...535A..68A: Absil O., Le Bouquin J-B, et al, "Searching for faint companions with VLTI/PIONIER"
  • 2011A&A...536A..55B: Blind N., Boffin H., Berger J-P. et al, "The symbiotic star SS Leporis: Milli-arcsecond imaging with PIONIER/VLTI"
  • 2011A&A...534L..11C: Chesneau O., Meilland A., Banerjee K., Le Bouquin et al, "The 2011 outburst of the recurrent nova T Pyx"
  • 2011A&A...535A..67L: Le Bouquin J-B, Berger J-P, et al, "PIONIER: a 4-telescope visitor instrument for VLTI"

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