Few Skewed Disks Found in First Closure-Phase Survey of Herbig Ae/Be Stars

  title={Few Skewed Disks Found in First Closure-Phase Survey of Herbig Ae/Be Stars},
  author={John D. Monnier and J-P. Berger and Rafael Millan-Gabet and Wesley A. Traub and F. Peter Schloerb and Ettore Pedretti and Myriam Benisty and Nathaniel P. Carleton and Pierre Haguenauer and Pierre Y. Kern and Pierre Labeye and Marc G. Lacasse and Fabien Malbet and K. Perraut and Michael R. Pearlman and M. Zhao Michigan Laog Msc CfA Jpl UMass and Amherst Eso LETI-CEA},
  journal={The Astrophysical Journal},
Using the three-telescope IOTA interferometer on Mount Hopkins, we report results from the first near-infrared (lambda = 1.65 mu m) closure-phase survey of young stellar objects (YSOs). These closure phases allow us to unambiguously detect departures from centrosymmetry (i.e., skew) in the emission pattern from YSO disks on the scale of similar to 4 mas, expected from generic "flared disk'' models. Six of 14 targets showed small, yet statistically significant nonzero closure phases, with… Expand
Mid-infrared size survey of young stellar objects : description of keck segment-tilting experiment and basic results
The mid-infrared properties of pre-planetary disks are sensitive to the temperature and flaring profiles of disks for the regions where planet formation is expected to occur. In order to constrainExpand
Discovery of a Circumbinary Disk around Herbig Ae/Be System V892 Tauri
We report the discovery of a circumbinary disk around the Herbig Ae/Be system V892 Tau. Our detailed mid-infrared images were made using segment-tilting interferometry on the Keck I telescope andExpand
Irregular Dust Features around Intermediate-mass Young Stars with GPI: Signs of Youth or Misaligned Disks?
We are undertaking a large survey of over thirty disks using the Gemini Planet Imager (GPI) to see whether the observed dust structures match spectral energy distribution (SED) predictions and haveExpand
Revealing the sub-AU asymmetries of the inner dust rim in the disk around the Herbig Ae star R Coronae Austrinae
Context. Unveiling the structure of the disks around intermediate-mass pre-main-sequence stars (Herbig Ae/Be stars) is essential for our understanding of the star and planet formation process. InExpand
Structure of Herbig AeBe disks at the milliarcsecond scale: A statistical survey in the H band using PIONIER-VLTI
Context. It is now generally accepted that the near-infrared excess of Herbig AeBe stars originates in the dust of a circumstellar disk. Aims. The aims of this article are to infer the radial andExpand
Resolving the inner disk of UX Orionis
Aims. The cause of the UX Ori variability in some Herbig Ae/Be stars is still a matter of debate. Detailed studies of the circumstellar environment of UX Ori objects (UXORs) are required to test theExpand
Inner disk regions revealed by infrared interferometry
  • F. Malbet
  • Physics
  • Proceedings of the International Astronomical Union
  • 2007
Abstract I review the results obtained by long-baseline interferometry at infrared wavelengths on the innermost regions around young stars. These observations directly probe the location of the dustExpand
On the alignment between the circumstellar disks and orbital planes of Herbig Ae/Be binary systems
Context. The majority of the intermediate mass, pre-main-sequence Herbig Ae/Be stars reside in binary systems. As these systems are young, their properties may contain an imprint of the starExpand
The interferometric view of Herbig Ae/Be stars
In this contribution I review how optical interferometry has contributed to shaping our understanding of the class of Herbig Ae/Be stars and of their associated circumstellar disks. I discuss theExpand
A family portrait of disk inner rims around Herbig Ae/Be stars
The innermost astronomical unit in protoplanetary disks is a key region for stellar and planet formation, as exoplanet searches have shown a large occurrence of close-in planets that are locatedExpand


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We have observed 14 Herbig Ae/Be (HAEBE) sources with the long-baseline near-IR Palomar Testbed Interferometer. All except two sources are resolved at 2.2 μm, with angular sizes generally 5 mas. WeExpand
A reconsideration of disk properties in Herbig Ae stars
This paper presents state-of-the-art spectral energy distributions (SEDs) of four Herbig Ae stars, based in part on new data in the mid and far-infrared and at millimeter wavelengths. The SEDs areExpand
Flaring and self-shadowed disks around Herbig Ae stars: simulations for 10 μm interferometers
We present simulations of the interferometric visibilities of Herbig Ae star disks. We investigate whether interferometric measurements in the 10μm atmospheric window are sensitive to the presence ofExpand
Bright Localized Near-Infrared Emission at 1-4 AU in the AB Aurigae Disk Revealed by IOTA Closure Phases
We report on the detection of localized off-center emission at 1-4 AU in the circumstellar environment of the young stellar object AB Aurigae. We used closure-phase measurements in the near-infraredExpand
Spatially Resolved Circumstellar Structure of Herbig Ae/Be Stars in the Near-Infrared
We have conducted the first systematic study of Herbig Ae/Be stars using the technique of long baseline stellar interferometry in the near-infrared, with the objective of characterizing theExpand
We have observed the Herbig Ae/Be sources AB Aur, VV Ser, V1685 Cyg (BD +40°4124), AS 442, and MWC 1080 with the Palomar Testbed Interferometer, obtaining the longest baseline near-IR interferometricExpand
Passive Irradiated Circumstellar Disks with an Inner Hole
A model for irradiated dust disks around Herbig Ae stars is proposed. The model is based on the flaring disk model given by Chiang and Goldreich in 1997, but with the central regions of the diskExpand
On the binarity of Herbig Ae/Be stars
We present high-resolution spectro-astrometry of a sample of 28 Herbig Ae/Be and three F-type pre-main-sequence stars. The spectro-astrometry, which is essentially the study of unresolved features inExpand
Halos around Herbig Ae/Be stars -more common than for the less massive T Tauri stars
We present sub-arcsec observations of a sample of 31 Herbig Ae/Be and related stars obtained with the technique of near-infrared speckle interferometry. In 18 of the 31 stars we nd evidence forExpand
Near-Infrared and the Inner Regions of Protoplanetary Disks
Weexamine the‘‘puffed-upinner disk’’ modelproposed byDullemond, Dominik,& Natta forexplainingthenearIR excess radiation from Herbig Ae/Be stars. Detailed model computations show that the observedExpand