activity
20192026
most citedThe JWST Early Release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 Micron Spectrum of the Planetary-Mass Companion VHS 1256-1257 b

176 citations · 614 across the 41 of their papers we have counts for

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Showing 2023Show all

7 papers · 1 filter

astro-ph.EP2023

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems III: Aperture Masking Interferometric Observations of the star HIP 65426 at 3.8 um

Shrishmoy Ray, Steph Sallum, Sasha Hinkley +121

We present aperture masking interferometry (AMI) observations of the star HIP 65426 at as a part of the JWST Direct Imaging Early Release Science (ERS) program obtai…

astro-ph.EP2023

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems IV: NIRISS Aperture Masking Interferometry Performance and Lessons Learned

Steph Sallum, Shrishmoy Ray, Jens Kammerer +120

We present a performance analysis for the aperture masking interferometry (AMI) mode on board the James Webb Space Telescope Near Infrared Imager and Slitless Spectrograph (JWST/NI…

astro-ph.EP2023★ 3 cited

JWST-TST High Contrast: Achieving direct spectroscopy of faint substellar companions next to bright stars with the NIRSpec IFU

Jean-Baptiste Ruffio, Marshall D. Perrin, Kielan K. W. Hoch +33

The JWST NIRSpec integral field unit (IFU) presents a unique opportunity to observe directly imaged exoplanets from 3-5 um at moderate spectral resolution (R~2,700) and thereby bet…

astro-ph.EP2023

JWST-TST DREAMS: Quartz Clouds in the Atmosphere of WASP-17b

David Grant, Nikole K. Lewis, Hannah R. Wakeford +39

Clouds are prevalent in many of the exoplanet atmospheres that have been observed to date. For transiting exoplanets, we know if clouds are present because they mute spectral featu…

astro-ph.EP2023★ 12 cited

Detecting Exoplanets Closer to Stars with Moderate Spectral Resolution Integral-Field Spectroscopy

Shubh Agrawal, Jean-Baptiste Ruffio, Quinn M. Konopacky +10

While radial velocity surveys have demonstrated that the population of gas giants peaks around , the most recent high-contrast imaging surveys have only been sensitive…

astro-ph.GA2023★ 32 cited

JWST-TST Proper Motions: I. High-Precision NIRISS Calibration and Large Magellanic Cloud Kinematics

M. Libralato, A. Bellini, R. P. van der Marel +27

We develop and disseminate effective point-spread functions and geometric-distortion solutions for high-precision astrometry and photometry with the JWST NIRISS instrument. We corr…

astro-ph.IM2023

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems: Best Practices for Data Collection in Cycle 2 and Beyond

Sasha Hinkley, Beth Biller, Andrew Skemer +35

We present a set of recommended best practices for JWST data collection for members of the community focussed on the direct imaging and spectroscopy of exoplanetary systems. These…