19 papers
JWST-TST High Contrast: First Direct Spectroscopy of GJ 504 b reveals Clouds and Possible Metal Enrichment
Aneesh Baburaj, Jean-Baptiste Ruffio, Marshall Perrin +27
Characterizing the coldest directly imaged companions through direct spectroscopy has only recently become possible with the James Webb Space Telescope. We present moderate-resolut…
Direct Images of CO2 Absorption in the Atmosphere of a Super-Jupiter: Enhanced Metallicity Suggestive of Formation in a Disk
William O. Balmer, Laurent Pueyo, Ashley Messier +15
It is unclear how directly imaged substellar companions with masses near the deuterium burning limit form, because these objects are rare and their bulk properties are not diagnost…
Simulating Roman+Gaia Combined Astrometry, Parallaxes, and Proper Motions
Kevin A. McKinnon, Roeland P. van der Marel
The next generation of high-precision astrometry is rapidly approaching thanks to ongoing and upcoming missions like Euclid, LSST, and RST. We present a new tool (available at http…
A Galactic Transformation -- Understanding the SMC's Structural and Kinematic Disequilibrium
Himansh Rathore, Gurtina Besla, Roeland P. van der Marel +1
The SMC is in disequilibrium. Gas line-of-sight (LoS) velocity maps show a gradient of km s, generally interpreted as a rotating gas disk consistent with the Tully-…
Overview of The SDSS-V Magellanic Genesis Survey
David L. Nidever, Danny Horta, Steven R. Majewski +14
The Sloan Digital Sky Survey-V (SDSS-V) Magellanic Genesis survey is a spectroscopic program designed to map the kinematic and chemical structure of the Magellanic Clouds using APO…
Encounters Between M33 and Present-Day M31 Satellites Hint at a Previous Group Accretion
Ekta Patel, Paul Bennet, Sangmo Tony Sohn +2
This work investigates whether two known Andromeda (M31) satellites, Pisces (LGS 3) and Andromeda XVI, have interacted with M33, M31's most massive satellite. CDM predictions i…