176 citations · 1.8k across the 76 of their papers we have counts for
19 papers · 1 filter
The detection of dust gap-ring structure in the outer region of the CR Cha protoplanetary disk
Seongjoong Kim, Sanemichi Takahashi, Hideko Nomura +13
We observe the dust continuum at 225 GHz and CO isotopologue (12CO, 13CO, and C18O) J=2-1 emission lines toward the CR Cha protoplanetary disk using the Atacama Large Millimeter/Su…
Aggregate Growth and Internal structures of Chondrite Parent Bodies Forming from Dense Clumps
Yuji Matsumoto, Shigeru Wakita, Yasuhiro Hasegawa +1
Major components of chondrites are chondrules and matrix. Measurements of the volatile abundance in Semarkona chondrules suggest that chondrules formed in a dense clump that had a…
Planet formation and migration near the silicate sublimation front in protoplanetary disks
Mario Flock, Neal J. Turner, Gijs D. Mulders +3
The increasing number of newly detected exoplanets at short orbital periods raises questions about their formation and migration histories. A particular puzzle that requires explan…
The Properties of Planetesimal Collisions under Jupiter's Perturbation and the Application to Chondrule Formation via Impact Jetting
Shoichi Oshino, Yasuhiro Hasegawa, Shigeru Wakita +1
Understanding chondrule formation provides invaluable clues about the origin of the solar system. Recent studies suggest that planetesimal collisions and the resulting impact melts…
The Potential of Exozodiacal Disks Observations with the WFIRST Coronagraph Instrument
B. Mennesson, V. Bailey, J. Kasdin +60
The Wide Field Infrared Survey Telescope (WFIRST) Coronagraph Instrument (CGI) will be the first high-performance stellar coronagraph using active wavefront control for deep starli…
Diagnosing 0.1-10 au scale morphology of the FU\,Ori disk using ALMA and VLTI/GRAVITY
Hauyu Baobab Liu, Antoine Mérand, Joel D. Green +11
We report new Atacama Large Millimeter/submillimeter Array Band 3 (86-100 GHz; 80 mas angular resolution) and Band 4 (146-160 GHz; 50 mas angular resolution) observatio…
Close-in giant-planet formation via in-situ gas accretion and their natal disk properties
Yasuhiro Hasegawa, Tze Yeung Mathew Yu, Bradley M. S. Hansen
The origin of close-in Jovian planets is still elusive. We examine the in-situ gas accretion scenario as a formation mechanism of these planets. We reconstruct natal disk propertie…
The Heavy-element Content Trend of Planets: A Tracer of their Formation Sites
Yasuhiro Hasegawa, Bradley M. S. Hansen, Gautam Vasisht
Identification of the main planet formation site is fundamental to understanding how planets form and migrate to the current locations. We consider the heavy-element content trend…
ALMA survey of Class II protoplanetary disks in Corona Australis: a young region with low disk masses
P. Cazzoletti, C. F. Manara, H. B. Liu +20
In recent years, the disk populations in a number of young star-forming regions have been surveyed with ALMA. Understanding the disk properties and their correlation with those of…
Imaging Cool Giant Planets in Reflected Light: Science Investigations and Synergy with Habitable Planets
Mark Marley, Nikole Lewis, Giada Arney +38
Planned astronomical observatories of the 2020s will be capable of obtaining reflected light photometry and spectroscopy of cool extrasolar giant planets. Here we explain that such…
Detecting Earth-like Biosignatures on Rocky Exoplanets around Nearby Stars with Ground-based Extremely Large Telescopes
Mercedes López-Morales, Thayne Currie, Johanna Teske +21
As we begin to discover rocky planets in the habitable zone of nearby stars with missions like TESS and CHEOPS, we will need quick advancements on instrumentation and observational…
New Frontiers for Terrestrial-sized to Neptune-sized Exoplanets In the Era of Extremely Large Telescopes
Ji Wang, Michael R. Meyer, Alan Boss +20
Surveys reveal that terrestrial- to Neptune-sized planets (1 4 R) are the most common type of planets in our galaxy. Detecting and characterizing such small…
Characterizing Transiting Exoplanets with JWST Guaranteed Time and ERS Observations
Thomas Greene, Jacob Bean, Thomas Beatty +10
We highlight how guaranteed time observations (GTOs) and early release science (ERS) will advance understanding of exoplanet atmospheres and provide a glimpse into what transiting…
Constraining Stellar Photospheres as an Essential Step for Transmission Spectroscopy of Small Exoplanets
Benjamin V. Rackham, Arazi Pinhas, Dániel Apai +29
Transmission spectra probe the atmospheres of transiting exoplanets, but these observations are also subject to signals introduced by magnetic active regions on host stars. Here we…
Imaging Giant Protoplanets with the ELTs
Steph Sallum, Vanessa P. Bailey, Rebecca A. Bernstein +27
We have now accumulated a wealth of observations of the planet-formation environment and of mature planetary systems. These data allow us to test and refine theories of gas-giant p…
A Statistical Comparative Planetology Approach to Maximize the Scientific Return of Future Exoplanet Characterization Efforts
Jade H. Checlair, Dorian S. Abbot, Robert J. Webber +37
Provided that sufficient resources are deployed, we can look forward to an extraordinary future in which we will characterize potentially habitable planets. Until now, we have had…
Protoplanetary Disk Science Enabled by Extremely Large Telescopes
Hannah Jang-Condell, Sean Brittain, Alycia Weinberger +36
The processes that transform gas and dust in circumstellar disks into diverse exoplanets remain poorly understood. One key pathway is to study exoplanets as they form in their youn…
The Critical, Strategic Importance of Adaptive Optics-Assisted Ground-Based Telescopes for the Success of Future NASA Exoplanet Direct Imaging Missions
Thayne Currie, Ruslan Belikov, Olivier Guyon +18
Ground-based telescopes coupled with adaptive optics (AO) have been playing a leading role in exoplanet direct imaging science and technological development for the past two decade…
Tracing the Origins and Evolution of Small Planets using Their Orbital Obliquities
Marshall C. Johnson, George Zhou, Brett C. Addison +6
We recommend an intensive effort to survey and understand the obliquity distribution of small close-in extrasolar planets over the coming decade. The orbital obliquities of exoplan…