190 citations · 1.8k across the 45 of their papers we have counts for
34 papers · 1 filter
Searching for Planets Orbiting ~Eridani with JWST/NIRCam
Jorge Llop-Sayson, Charles Beichman, Geoffrey Bryden +10
We present observations of \epseri~with the JWST/NIRCam coronagraph aimed at imaging planets orbiting within this system. In particular, these observations targeted (1) the Jupiter…
A planetary-mass candidate imaged in the Young Suns Exoplanet Survey
Pengyu Liu, Matthew A. Kenworthy, Beth A. Biller +26
Directly imaged exoplanets in wide orbits challenge current gas giant formation theories. They need to form quickly and acquire enough material before the disk dissipates, which ca…
A Survey of Protoplanetary Disks Using the Keck/NIRC2 Vortex Coronagraph
Nicole L. Wallack, Jean-Baptiste Ruffio, Garreth Ruane +34
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations of protoplanetary disks in the millimeter continuum have shown a variety of radial gaps, cavities, and spira…
Planet Search with the Keck/NIRC2 Vortex Coronagraph in Ms-band for Vega
Bin B. Ren, Nicole L. Wallack, Spencer A. Hurt +12
Gaps in circumstellar disks can signal the existence of planetary perturbers, making such systems preferred targets for direct imaging observations of exoplanets. Being one of the…
Unveiling wide-orbit companions to K-type stars in Sco-Cen with Gaia EDR3
Alexander J. Bohn, Christian Ginski, Matthew A. Kenworthy +12
Abbreviated. We aim to identify new low-mass companions to young stars using the astrometric measurements provided by the Gaia space mission and complementary VLT/SPHERE data. We i…
Detection and Bulk Properties of the HR 8799 Planets with High Resolution Spectroscopy
Jason J. Wang, Jean-Baptiste Ruffio, Evan Morris +49
Using the Keck Planet Imager and Characterizer (KPIC), we obtained high-resolution (R35,000) -band spectra of the four planets orbiting HR 8799. We clearly detected \water…
The 13O-rich atmosphere of a young accreting super-Jupiter
Yapeng Zhang, Ignas Snellen, Alexander J. Bohn +8
Isotope abundance ratios play an important role in astronomy and planetary sciences, providing insights in the origin and evolution of the Solar System, interstellar chemistry, and…
A Community Exoplanet Imaging Data Challenge for Roman CGI and Starshade Rendezvous
Margaret C. Turnbull, Neil Zimmerman, Julien H. Girard +8
Operating in an unprecedented contrast regime ( to ), the Roman Coronagraph Instrument (CGI) will serve as a pathfinder for key technologies needed for future Ear…
Discovery of a directly imaged planet to the young solar analog YSES 2
Alexander J. Bohn, Christian Ginski, Matthew A. Kenworthy +8
Abbreviated. By selecting stars with similar ages and masses, the Young Suns Exoplanet Survey (YSES) aims to detect and characterize planetary-mass companions to solar-type host st…
Three new late-type stellar companions to very dusty WISE debris disks identified with VLT/SPHERE imaging
Elisabeth C. Matthews, Sasha Hinkley, Karl Stapelfeldt +8
Debris disk stars are good targets for high contrast imaging searches for planetary systems, since debris disks have been shown to have a tentative correlation with giant planets.…
Early High-contrast Imaging Results with Keck/NIRC2-PWFS: The SR 21 Disk
Taichi Uyama, Bin Ren, Dimitri Mawet +22
High-contrast imaging of exoplanets and protoplanetary disks depends on wavefront sensing and correction made by adaptive optics instruments. Classically, wavefront sensing has bee…
Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1
Alexander J. Bohn, Matthew A. Kenworthy, Christian Ginski +9
Even though tens of directly imaged companions have been discovered in the past decades, the number of directly confirmed multiplanet systems is still small. Dynamical analysis of…
Keck/NIRC2 '-Band Imaging of Jovian-Mass Accreting Protoplanets around PDS 70
Jason J. Wang, Sivan Ginzburg, Bin Ren +42
We present '-band imaging of the PDS 70 planetary system with Keck/NIRC2 using the new infrared pyramid wavefront sensor. We detected both PDS 70 b and c in our images, as well…
The Young Suns Exoplanet Survey: Detection of a wide orbit planetary mass companion to a solar-type Sco-Cen member
A. J. Bohn, M. A. Kenworthy, C. Ginski +9
The Young Suns Exoplanet Survey (YSES) consists of a homogeneous sample of 70 young, solar-mass stars located in the Lower Centaurus-Crux subgroup of the Scorpius-Centaurus associa…
: Planet or Noise?
Jacob Golomb, Graça Rocha, Tiffany Meshkat +5
The work presented here attempts at answering the question: how do we decide when a given adetection is a planet or just residual noise in exoplanet direct imaging data? To this en…
Near-Infrared Imaging of a Spiral in the CQ Tau Disk
Taichi Uyama, Takayuki Muto, Dimitri Mawet +28
We present -band Keck/NIRC2 imaging and -band Subaru/AO188+HiCIAO polarimetric observations of CQ Tau disk with a new spiral arm. Apart from the spiral feature our obs…
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…
The Demographics and Atmospheres of Giant Planets with the ELTs
Brendan Bowler, Steph Sallum, Alan Boss +23
Gas giants are the most readily detectable exoplanets but fundamental questions about their system architectures, formation, migration, and atmospheres have been unanswerable with…
Maximum Angular Separation Epochs for Exoplanet Imaging Observations
Stephen R. Kane, Tiffany Meshkat, Margaret C. Turnbull
Direct imaging of exoplanets presents both significant challenges and significant gains. The advantages primarily lie in receiving emitted and, with future instruments, reflected p…
Deep exploration of Eridani with Keck Ms-band vortex coronagraphy and radial velocities: mass and orbital parameters of the giant exoplanet
Dimitri Mawet, Lea Hirsch, Eve J. Lee +27
We present the most sensitive direct imaging and radial velocity (RV) exploration of Eridani to date. Eridani is an adolescent planetary system, reminiscent of the early So…
A deep search for planets in the inner 15 au around Vega
Tiffany Meshkat, Ricky Nilsson, Jonathan Aguilar +12
We present the results of a deep high-contrast imaging search for planets around Vega. Vega is an ideal target for high-contrast imaging because it is bright, nearby, and young wit…
Constraining the presence of giant planets in two-belt debris disk systems with VLT/SPHERE direct imaging and dynamical arguments
Elisabeth Matthews, Sasha Hinkley, Arthur Vigan +10
Giant, wide-separation planets often lie in the gap between multiple, distinct rings of circumstellar debris: this is the case for the HR\,8799 and HD\,95086 systems, and even the…
An Excess of Jupiter Analogs in Super-Earth Systems
Marta L. Bryan, Heather A. Knutson, Eve J. Lee +4
We use radial velocity observations to search for long-period gas giant companions in systems hosting inner super-Earth (1-4 R_Earth, 1-10 M_Earth) planets to constrain formation a…
The WFIRST Exoplanet Microlensing Survey
David P. Bennett, Rachel Akeson, Jay Anderson +71
The Wide Field Infrared Survey Telescope (WFIRST) was the top ranked large space mission in the 2010 New Worlds, New Horizons decadal survey, and it was formed by merging the scien…