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Browsing by Author "Chiang, Eugene"

Browsing by Author "Chiang, Eugene"

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  • Confirming the Primarily Smooth Structure of the Vega Debris Disk at Millimeter Wavelengths 
    Hughes, A. M.; Wilner, David J.; Mason, Brian; Carpenter, John M.; Plambeck, Richard; Chiang, Hsin-Fang; Andrews, Sean M.; Williams, Jonathan P.; Hales, Antonio; Su, Kate; Chiang, Eugene; Dicker, Simon; Korngut, Phil; Devlin, Mark (2012)
    Clumpy structure in the debris disk around Vega has been previously reported at millimeter wavelengths and attributed to concentrations of dust grains trapped in resonances with an unseen planet. However, recent imaging ...
  • The Degree of Alignment between Circumbinary Disks and Their Binary Hosts 
    Czekala, Ian; Chiang, Eugene; Andrews, Sean M.; Jensen, Eric L. N.; Torres, Guillermo; Wilner, David J.; Stassun, Keivan G.; Macintosh, Bruce (2019)
    All four circumbinary (CB) protoplanetary disks orbiting short-period (P <SUB>disk</SUB> that match, to within a few degrees, the sky-plane inclinations i <SUB>?</SUB> of their stellar hosts. Although for these systems the ...
  • Fast Radial Flows in Transition Disk Holes 
    Rosenfeld, Katherine A.; Chiang, Eugene; Andrews, Sean M. (2014)
    Protoplanetary &quot;transition&quot; disks have large, mass-depleted central cavities, yet also deliver gas onto their host stars at rates comparable to disks without holes. The paradox of simultaneous transparency and ...
  • The Mass of Stirring Bodies in the AU Mic Debris Disk Inferred from Resolved Vertical Structure 
    Daley, Cail; Hughes, A. Meredith; Carter, Evan S.; Flaherty, Kevin; Lambros, Zachary; Pan, Margaret; Schlichting, Hilke; Chiang, Eugene; Wyatt, Mark; Wilner, David; Andrews, Sean; Carpenter, John (2019)
    The vertical distribution of dust in debris disks is sensitive to the number and size of large planetesimals dynamically stirring the disk, and is therefore well-suited for constraining the prevalence of otherwise unobservable ...
  • Millimeter Emission Structure in the First ALMA Image of the AU Mic Debris Disk 
    MacGregor, Meredith A.; Wilner, David J.; Rosenfeld, Katherine A.; Andrews, Sean M.; Matthews, Brenda; Hughes, A. Meredith; Booth, Mark; Chiang, Eugene; Graham, James R.; Kalas, Paul; Kennedy, Grant; Sibthorpe, Bruce (2013)
    We present 1.3 mm ALMA Cycle 0 observations of the edge-on debris disk around the nearby, ~10 Myr old, M-type star AU Mic. These observations obtain 0.&#39;&#39;6 (6 AU) resolution and reveal two distinct emission components: ...
  • Multiwavelength Vertical Structure in the AU Mic Debris Disk: Characterizing the Collisional Cascade 
    Vizgan, David; Hughes, A. Meredith; Carter, Evan S.; Flaherty, Kevin M.; Pan, Margaret; Chiang, Eugene; Schlichting, Hilke; Wilner, David J.; Andrews, Sean M.; Carpenter, John M.; Moór, Attila; MacGregor, Meredith A. (2022)
    Debris disks are scaled-up analogs of the Kuiper Belt in which dust is generated by collisions between planetesimals. In the collisional cascade model of debris disks, the dust lost to radiation pressure and winds is ...
  • Mysterious Dust-emitting Object Orbiting TIC 400799224 
    Powell, Brian P.; Kostov, Veselin B.; Rappaport, Saul A.; Tokovinin, Andrei; Shporer, Avi; Collins, Karen A.; Corbett, Hank; Borkovits, Tamás; Gary, Bruce L.; Chiang, Eugene; Rodriguez, Joseph E.; Law, Nicholas M.; Barclay, Thomas; Gagliano, Robert; Vanderburg, Andrew; Olmschenk, Greg; Kruse, Ethan; Schlieder, Joshua E.; Soto, Alan Vasquez; Goeke, Erin; Jacobs, Thomas L.; Kristiansen, Martti H.; LaCourse, Daryll M.; Omohundro, Mark; Schwengeler, Hans M.; Terentev, Ivan A.; Schmitt, Allan R. (2021)
    We report the discovery of a unique object of uncertain nature-but quite possibly a disintegrating asteroid or minor planet-orbiting one star of the widely separated binary TIC 400799224. We initially identified the system ...
  • Problems and Prospects in Planetesimal Formation 
    Chiang, Eugene; Murray-Clay, Ruth; Shi, Ji-Ming; Booth, Mark; Matthews, Brenda C.; Graham, James R. (2014)
  • Resolved Millimeter-wavelength Observations of Debris Disks around Solar-type Stars 
    Steele, Amy; Hughes, A. Meredith; Carpenter, John; Ricarte, Angelo; Andrews, Sean M.; Wilner, David J.; Chiang, Eugene (2016)
    The presence of debris disks around young main-sequence stars hints at the existence and structure of planetary systems. Millimeter-wavelength observations probe large grains that trace the location of planetesimal belts. ...
  • Resolving Structure in the Debris Disk around HD 206893 with ALMA 
    Nederlander, Ava; Hughes, A. Meredith; Fehr, Anna J.; Flaherty, Kevin M.; Su, Kate Y. L.; Moór, Attila; Chiang, Eugene; Andrews, Sean M.; Wilner, David J.; Marino, Sebastian (2021)
    Debris disks are tenuous, dusty belts surrounding main-sequence stars generated by collisions between planetesimals. HD 206893 is one of only two stars known to host a directly imaged brown dwarf orbiting interior to its ...
  • A Three-dimensional View of Turbulence: Constraints on Turbulent Motions in the HD 163296 Protoplanetary Disk Using DCO+ 
    Flaherty, Kevin M.; Hughes, A. Meredith; Rose, Sanaea C.; Simon, Jacob B.; Qi, Chunhua; Andrews, Sean M.; Kóspál, Ágnes; Wilner, David J.; Chiang, Eugene; Armitage, Philip J.; Bai, Xue-ning (2017)
    Gas kinematics are an important part of the planet formation process. Turbulence influences planetesimal growth and migration from the scale of submicron dust grains through gas-giant planets. Radio observations of resolved ...
  • Weak Turbulence in the HD 163296 Protoplanetary Disk Revealed by ALMA CO Observations 
    Flaherty, Kevin M.; Hughes, A. Meredith; Rosenfeld, Katherine A.; Andrews, Sean M.; Chiang, Eugene; Simon, Jacob B.; Kerzner, Skylar; Wilner, David J. (2015)
    Turbulence can transport angular momentum in protoplanetary disks and influence the growth and evolution of planets. With spatially and spectrally resolved molecular emission line measurements provided by (sub)millimeter ...

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