171 citations · 1k across the 38 of their papers we have counts for
39 papers
Mid-infrared Imaging of SR 12 c with JWST/MIRI: Grain Growth in an Evolved Circumplanetary Disk
Ya-Lin Wu, Claire O. Finley, Brendan P. Bowler +13
The physical properties of circumplanetary disks offer insights into the formation of giant planets and their satellites. The circumbinary planetary-mass companion SR 12 c (1200 au…
Ultraviolet Imaging of SR 12 c with HST/WFC3: Accretion and Variability of a Giant Planet at the End Stages of Growth
Claire O. Finley, Brendan P. Bowler, Ya-Lin Wu +12
Many details of the gas accretion phase during giant planet formation remain untested. We present new 0.2$\unicode{x2013}$0.7 m UV-through-red optical imaging of the young, wide…
The Rotation Dip in the Envelope-Disk Transition of HH 111: Evidence for Magnetic Braking
Jyun-Heng Lin, Chin-Fei Lee, Zhi-Yun Li +3
Magnetic braking can drive angular momentum loss in star formation and influence disk evolution. A previous study of HH 111 VLA1 suggested a decrease in rotation velocity in a regi…
Wide Separation Planets In Time (WISPIT): Discovery of a Gap H Protoplanet WISPIT 2b with MagAO-X
Laird M. Close, Richelle F. van Capelleveen, Gabriel Weible +34
Excellent (<25 mas) H images of the star TYC 5709-354-1 led to the discovery of a rare H protoplanet. This star was discovered by the WISPIT survey to have a large multi-ri…
Discovery of H Emission from a Protoplanet Candidate Around the Young Star 2MASS J16120668-3010270 with MagAO-X
Jialin Li, Laird M. Close, Feng Long +32
2MASS J16120668-3010270 (hereafter 2MJ1612) is a young M0 star that hosts a protoplanetary disk in the Upper Scorpious star-forming region. Recent ALMA observations of 2MJ1612 show…
H Variability of AB Aur b with the Hubble Space Telescope: Probing the Nature of a Protoplanet Candidate with Accretion Light Echoes
Brendan P. Bowler, Yifan Zhou, Lauren I. Biddle +11
Giant planets generate accretion luminosity as they form. Much of this energy is radiated in strong H line emission, which has motivated direct imaging surveys at optical wavele…
Three Years of High-Contrast Imaging of the PDS 70 b and c Exoplanets at Hα with MagAO-X: Evidence of Strong Protoplanet Hα Variability and Circumplanetary Dust
Laird M. Close, Jared R. Males, Jialin Li +23
We present 3 years of high-contrast imaging of the PDS 70 b and c accreting protoplanets with the new extreme AO system MagAO-X as part of the MaxProtoPlanetS survey of H protop…
Evidence for Variable Accretion onto PDS 70 c and Implications for Protoplanet Detections
Yifan Zhou, Brendan P. Bowler, Aniket Sanghi +14
Understanding the processes of planet formation and accretion in young systems is essential to unraveling the initial conditions of planetary systems. The PDS 70 system, which host…
Challenge of direct imaging of exoplanets within structures: disentangling real signal from point source from background light
Jialin Li, Laird M. Close, Jared R. Males +19
The high contrast and spatial resolution requirements for directly imaging exoplanets requires effective coordination of wavefront control, coronagraphy, observation techniques, an…
Monitoring H Emission from the Wide-orbit Brown-dwarf Companion FU Tau B
Ya-Lin Wu, Yu-Chi Cheng, Li-Ching Huang +5
Monitoring mass accretion onto substellar objects provides insights into the geometry of the accretion flows. We use the Lulin One-meter Telescope to monitor H emission from FU…
UV-Optical Emission of AB Aur b is Consistent with Scattered Stellar Light
Yifan Zhou, Brendan P. Bowler, Haifeng Yang +12
The proposed protoplanet AB Aur b is a spatially concentrated emission source imaged in the mm-wavelength disk gap of the Herbig Ae/Be star AB Aur. Its near-infrared spectrum and a…
Rotation Periods, Inclinations, and Obliquities of Cool Stars Hosting Directly Imaged Substellar Companions: Spin-Orbit Misalignments are Common
Brendan P. Bowler, Quang H. Tran, Zhoujian Zhang +10
The orientation between a star's spin axis and a planet's orbital plane provides valuable information about the system's formation and dynamical history. For non-transiting planets…
HST/WFC3 H Direct-Imaging Detection of a Point-like Source in the Disk Cavity of AB Aur
Yifan Zhou, Aniket Sanghi, Brendan P. Bowler +8
Accreting protoplanets enable the direct characterization of planet formation. As part of a high-contrast imaging search for accreting planets with the Hubble Space Telescope (HST)…
ALMA Discovery of a Disk around the Planetary-mass Companion SR 12 c
Ya-Lin Wu, Brendan P. Bowler, Patrick D. Sheehan +6
We report an Atacama Large Millimeter/submillimeter Array 0.88 mm (Band 7) continuum detection of the accretion disk around SR 12 c, an 11 planetary-mass compan…
Dynamical Masses of Young Stars Inferred from Two Transitions of CO with ALMA
Pranav H. Premnath, Ya-Lin Wu, Brendan P. Bowler +1
Stellar masses are fundamental but often difficult to measure. Thanks to the Atacama Large Millimeter Array (ALMA) and , dynamical masses of pre-main sequence stars can be pr…
ALMA 0.88 mm Survey of Disks around Planetary-mass Companions
Ya-Lin Wu, Brendan P. Bowler, Patrick D. Sheehan +6
Characterizing the physical properties and compositions of circumplanetary disks can provide important insights into the formation of giant planets and satellites. We report ALMA 0…
High Precision Dynamical Masses of Pre-Main Sequence Stars with ALMA and Gaia
Patrick D. Sheehan, Ya-Lin Wu, Josh A. Eisner +1
The Keplerian rotation in protoplanetary disks can be used to robustly measure stellar masses at very high precision if the source distance is known. We present Atacama Large Milli…
The Extremely Luminous Quasar Survey in the Sloan Digital Sky Survey footprint. III. The South Galactic Cap Sample and the Quasar Luminosity Function at Cosmic Noon
Jan-Torge Schindler, Xiaohui Fan, Ian D. McGreer +11
We have designed the Extremely Luminous Quasar Survey (ELQS) to provide a highly complete census of unobscured UV-bright quasars during the cosmic noon, . Here we report…
Status of MagAO and review of astronomical science with visible light adaptive optics
Laird M. Close, Jared R. Males, Katie M. Morzinski +10
We review astronomical results in the visible (lambda <1 micron) with adaptive optics and note the status the MagAO system and the recent upgrade to visible camera's Simultaneous/S…
Magellan Adaptive Optics Imaging of PDS 70: Measuring the Mass Accretion Rate of a Young Giant Planet within a Gapped Disk
Kevin Wagner, Katherine B. Follette, Laird M. Close +11
PDS 70b is a recently discovered and directly imaged exoplanet within the wide (40 au) cavity around PDS 70 (Keppler et al. 2018, Müller et al. 2018). Ongoing accretion on…
The Intricate Structure of HH 508, the Brightest Microjet in the Orion Nebula
Ya-Lin Wu, Laird M. Close, Jinyoung Serena Kim +2
We present Magellan adaptive optics H imaging of HH 508, which has the highest surface brightness among protostellar jets in the Orion Nebula. We find that HH 508 actually has a…
An Explanation of the Very Low Radio Flux of Young Planet-mass Companions
Ya-Lin Wu, Laird M. Close, Josh A. Eisner +1
We report Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm continuum upper limits for 5 planetary-mass companions DH Tau B, CT Cha B, GSC 6214-210 B, 1RXS 1609 B, and GQ…
An ALMA Dynamical Mass Estimate of the Proposed Planetary-mass Companion FW Tau C
Ya-Lin Wu, Patrick D. Sheehan
Dynamical mass estimates down to the planet-mass regime can help to understand planet formation. We present Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm observations…
Resolving the H-alpha-emitting Region in the Wind of Eta Carinae
Ya-Lin Wu, Nathan Smith, Laird M. Close +2
The massive evolved star Eta Carinae is the most luminous star in the Milky Way and has the highest steady wind mass-loss rate of any known star. Radiative transfer models of the s…