activity
20202026
most citedThe infrared colors of 51 Eridani b: micrometereoid dust or chemical disequilibrium?

9 citations · 32 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.SR2026

The Dyn-Atmo Survey: JWST/NIRSpec spectroscopy of dynamical benchmark GJ 758 B

Alexander Madurowicz, Emily Rickman, Daniella Bardalez Gagliuffi +22

We present new JWST/NIRSpec IFU high contrast spectroscopic observations of the brown dwarf companion GJ 758 B. Extensive radial velocity monitoring of the primary has enabled high…

astro-ph.EP2026

A Sulfur-Rich Atmosphere for the Young Jupiter Analog AF Lep b Reveals Significant Solid Accretion

Jerry W. Xuan, William O. Balmer, Yayaati Chachan +25

AF Lep b is one of the closest analogs to Jupiter in terms of mass () and semi-major axis ( AU) amenable to spectroscopic characterization. We present JWST/NIR…

astro-ph.EP2026

Discovery of an Exterior Third Planet Orbiting Pictoris

Aidan Gibbs, Jean-Baptiste Ruffio, Alexis Bidot +9

We report the discovery of Pictoris d ( Pic d), a third giant planet in the Pictoris system, which now becomes only the second directly imaged system with more than two…

astro-ph.EP2026

Worlds Next Door. IV. Mapping the Late Stages of Giant Planet Evolution with a Precise Dynamical Mass and Luminosity for Ind Ab

Aniket Sanghi, William Thompson, James Mang +21

We present new JWST/NIRCam 4-5 m (F410M, F430M) and JWST/MIRI 18-25 m (F1800W, F2100W, F2550W) imaging detections of the nearby (3.6 pc) cold (275 K) gas giant exoplanet …

astro-ph.EP2025★ 8 cited

Direct Spectroscopy of 51 Eridani b with JWST NIRSpec

Alexander Madurowicz, Jean-Baptiste Ruffio, Bruce Macintosh +4

We present high-contrast direct spectroscopy of the low-mass, cool exoplanet 51 Eridani b (2-4 M, 750 K) using JWST / NIRSpec in a fixed-slit configuration (F2…

astro-ph.SR2025★ 1 cited

Apache Point Observatory follow-up of ACcelerating Candidate ExopLanet host Stars (APO ACCELS): Ages for 166 Accelerating Stars in the Northern Hemisphere

Anne E. Peck, Eric L. Nielsen, Robert J. De Rosa +14

Directly imaged substellar companions with well-constrained ages and masses serve as vital empirical benchmarks for planet formation and evolution models. Potential benchmark compa…

astro-ph.EP2023★ 9 cited

The infrared colors of 51 Eridani b: micrometereoid dust or chemical disequilibrium?

Alexander Madurowicz, Sagnick Mukherjee, Natasha Batalha +3

We reanalyze near-infrared spectra of the young extrasolar giant planet 51 Eridani b which was originally presented in (Macintosh et al. 2015) and (Rajan et al. 2017) using modern…

astro-ph.IM2022★ 6 cited

Integral field spectroscopy with the solar gravitational lens

Alexander Madurowicz, Bruce Macintosh

The prospect of combining integral field spectroscopy with the solar gravitational lens (SGL) to spectrally and spatially resolve the surfaces and atmospheres of extrasolar planets…

astro-ph.EP2021★ 8 cited

Multiwavelength Mitigation of Stellar Activity in Astrometric Planet Detection

Avi Kaplan-Lipkin, Bruce Macintosh, Alexander Madurowicz +4

Astrometry has long been a promising technique for exoplanet detection. At the theoretical limits, astrometry would allow for the detection of smaller planets than previously seen…

astro-ph.IM2020

Resolving Exo-Continents with Einstein Ring Deconvolution

Alexander Madurowicz

A mission to the focus of the solar gravitational lens could produce images with unprecedented angular resolution and sensitivity. In the context of trying to resolve the time vari…