ALMA HINTS AT THE PRESENCE OF TWO COMPANIONS IN THE DISK AROUND HD 100546

@article{Walsh2014ALMAHA,
  title={ALMA HINTS AT THE PRESENCE OF TWO COMPANIONS IN THE DISK AROUND HD 100546},
  author={Catherine Walsh and Attila Juh{\'a}sz and Paola Pinilla and Daniel Harsono and Geoffrey S. Mathews and William R. F. Dent and Michiel R. Hogerheijde and T.Birnstiel and Gwendolyn Meeus and Hideko Nomura and Yuri Aikawa and Tom J. Millar and Goran Sandell Leiden Observatory and Sron Netherlands Institute for Space Research and University of Hawaii and Joint Alma Observatory and European Southern Observatory and Harvard--Smithsonian Center for Astrophysics and Universidad Aut'onoma de Madrid and Tokyo Institute of Technology and Kobe University and Queen's University of Belfast and Nasa Ames Research Center},
  journal={The Astrophysical Journal},
  year={2014},
  volume={791}
}
HD 100546 is a well-studied Herbig Be star-disk system that likely hosts a close-in companion with compelling observational evidence for an embedded protoplanet at 68 AU. We present Atacama Large Millimeter/Submillimeter Array observations of the HD 100546 disk which resolve the gas and dust structure at (sub)millimeter wavelengths. The CO emission (at 345.795 GHz) originates from an extensive molecular disk (390 ± 20 AU in radius) whereas the continuum emission is more compact (230 ± 20 AU in… Expand

Figures from this paper

High-resolution ALMA Observations of HD 100546: Asymmetric Circumstellar Ring and Circumplanetary Disk Upper Limits
We present long-baseline Atacama Large Millimeter/submillimeter Array observations of the 870 μm dust continuum emission and CO (3–2) from the protoplanetary disk around the Herbig Ae/Be star HDExpand
ALMA reveals the anatomy of the mm-sized dust and molecular gas in the HD 97048 disk
Transitional disks show a lack of excess emission at infrared wavelengths due to a large dust cavity, that is often corroborated by spatially resolved observations at ~ mm wavelengths. We present theExpand
Cavity and other radial substructures in the disk around HD 97048
Context. Gaps, cavities, and rings in circumstellar disks are signposts of disk evolution and planet-disk interactions. We follow the recent suggestion that Herbig Ae/Be disks with a flared diskExpand
ALMA Observations of a Gap and a Ring in the Protoplanetary Disk around TW Hya
We report the first detection of a gap and a ring in 336 GHz dust continuum emission from the protoplanetary disk around TW Hya, using the Atacama Large Millimeter/Submillimeter Array (ALMA). The gapExpand
High-Contrast study of the candidate planets and protoplanetary disk around HD~100546
The nearby Herbig Be star HD100546 is known to be a laboratory for the study of protoplanets and their relation with the circumstellar disk that is carved by at least 2 gaps. We observed the HD100546Expand
The protoplanetary system HD 100546 in H α polarized light from SPHERE/ZIMPOL: A bar-like structure across the disk gap?
Context. HD 100546 is one of the few known pre-main-sequence stars that may host a planetary system in its disk. Aims. This work aims to contribute to our understanding of HD 100546 by analyzing newExpand
Resolving the HD 100546 Protoplanetary System with the Gemini Planet Imager: Evidence for Multiple Forming, Accreting Planets
We report Gemini Planet Imager H band high-contrast imaging/integral field spectroscopy and polarimetry of the HD 100546, a 10 $Myr$-old early-type star recently confirmed to host a thermal infraredExpand
An 80 au cavity in the disk around HD 34282
Context. Large cavities in disks are important testing grounds for the mechanisms proposed to drive disk evolution and dispersion, such as dynamical clearing by planets and photoevaporation. Aims. WeExpand
A ring-like concentration of mm-sized particles in Sz 91
Models of planet formation and disc evolution predict a variety of observables in the dust structure of protoplanetary discs. Here we present Atacama Large Millimeter/submillimeter Array (ALMA)Expand
Weak Turbulence in the HD 163296 Protoplanetary Disk Revealed by ALMA CO Observations
Turbulence can transport angular momentum in protoplanetary disks and influence the growth and evolution of planets. With spatially and spectrally resolved molecular emission line measurementsExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 48 REFERENCES
RESOLVED IMAGES OF THE PROTOPLANETARY DISK AROUND HD 100546 WITH ALMA
The disk around the Herbig Ae/Be star HD 100546 has been extensively studied and it is one of the systems for which there are observational indications of ongoing and/or recent planet formation.Expand
The complex structure of the disk around HD 100546 - The inner few astronomical units
Disclosing the structure of disks surrounding Herbig AeBe stars is important to expand our understanding of the formation and early evolution of stars and planets. We aim at revealing the sub-AU diskExpand
Warm gas at 50 AU in the disk around Herbig Be star HD 100546
Context. The disk atmosphere is one of the fundamental elements of theoretical models of a protoplanetary disk. However, the direct observation of the warm gas (≫100 K) at large radius of a disk (≫10Expand
A YOUNG PROTOPLANET CANDIDATE EMBEDDED IN THE CIRCUMSTELLAR DISK OF HD 100546
We present high-contrast observations of the circumstellar environment of the Herbig Ae/Be star HD 100546. The final 3.8 μm image reveals an emission source at a projected separation of 0. 48 ± 0. ��Expand
Unveiling the gas-and-dust disk structure in HD 163296 using ALMA observations
Aims. The aim of this work is to study the structure of the protoplan etary disk surrounding the Herbig Ae star HD 163296. Methods. We have used high-resolution and high-sensitivity ALMA observationsExpand
Millimeter imaging of HD 163296: probing the disk structure and kinematics
We present new multi-wavelength millimeter interferometric observations of the Herbig Ae star HD 163296 obtained with the IRAM/PBI, SMA and VLA arrays both in continuum and in the 12 CO, 13 CO and CExpand
Resolved Images of Large Cavities in Protoplanetary Transition Disks
Circumstellar disks are thought to experience a rapid transition phase in their evolution that can have a considerable impact on the formation and early development of planetary systems. We presentExpand
THE TW Hya DISK AT 870 μm: COMPARISON OF CO AND DUST RADIAL STRUCTURES
We present high-resolution (0.''3 = 16 AU), high signal-to-noise ratio Submillimeter Array observations of the 870 {mu}m (345 GHz) continuum and CO J = 3 - 2 line emission from the protoplanetaryExpand
Gas structure inside dust cavities of transition disks: Ophiuchus IRS 48 observed by ALMA
Context. Transition disks are recognized by the absence of emission of small dust grains inside a radius of up to several 10s of AUs. Owing to the lack of angular resolution and sensitivity, the gasExpand
LARGE-SCALE ASYMMETRIES IN THE TRANSITIONAL DISKS OF SAO 206462 AND SR 21
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations in the dust continuum (690 GHz, 0.45 mm) and ^(12)CO J = 6-5 spectral line emission of the transitional disks surroundingExpand
...
1
2
3
4
5
...