Detecting exomoons from radial velocity measurements of self-luminous planets: application to observations of HR 7672 B and future prospects

JB Ruffio, K Horstman, D Mawet… - The Astronomical …, 2023 - iopscience.iop.org
The detection of satellites around extrasolar planets, so called exomoons, remains a largely
unexplored territory. In this work, we study the potential of detecting these elusive objects …

Detection and bulk properties of the HR 8799 planets with high-resolution spectroscopy

JJ Wang, JB Ruffio, E Morris, JR Delorme… - The Astronomical …, 2021 - iopscience.iop.org
Abstract Using the Keck Planet Imager and Characterizer, we obtained high-resolution (R∼
35,000) K-band spectra of the four planets orbiting HR 8799. We clearly detected H 2 O and …

2023 astrophotonics roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

N Jovanovic, P Gatkine, N Anugu… - Journal of Physics …, 2023 - iopscience.iop.org
Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

Deep Exploration of the Planets HR 8799 b, c, and d with Moderate-resolution Spectroscopy

JB Ruffio, QM Konopacky, T Barman… - The Astronomical …, 2021 - iopscience.iop.org
The four directly imaged planets orbiting the star HR 8799 are an ideal laboratory to probe
atmospheric physics and formation models. We present more than a decade's worth of …

Radial velocity measurements of HR 8799 b and c with medium resolution spectroscopy

JB Ruffio, B Macintosh, QM Konopacky… - The Astronomical …, 2019 - iopscience.iop.org
High-contrast medium resolution spectroscopy has been used to detect molecules such as
water and carbon monoxide in the atmospheres of gas giant exoplanets. In this work, we …

[HTML][HTML] Rotation and Abundances of the Benchmark Brown Dwarf HD 33632 Ab from Keck/KPIC High-resolution Spectroscopy

CC Hsu, JJ Wang, JW Xuan, JB Ruffio… - The Astrophysical …, 2024 - iopscience.iop.org
We present the projected rotational velocity and molecular abundances for HD 33632 Ab
obtained via Keck Planet Imager and Characterizer (KPIC) high-resolution spectroscopy. HD …

Keck Planet Imager and Characterizer: a dedicated single-mode fiber injection unit for high-resolution exoplanet spectroscopy

JR Delorme, N Jovanovic, D Echeverri… - Journal of …, 2021 - spiedigitallibrary.org
The Keck Planet Imager and Characterizer (KPIC) is a purpose-built instrument to
demonstrate technological and instrumental concepts initially developed for the exoplanet …

Limits on the mass and initial entropy of 51 Eri b from Gaia EDR3 astrometry

TJ Dupuy, GM Brandt, TD Brandt - Monthly Notices of the Royal …, 2022 - academic.oup.com
ABSTRACT 51 Eri b is one of the only young planets consistent with a wide range of
possible initial entropy states, including the cold-start scenario associated with some models …

Vortex fiber nulling for exoplanet observations: implementation and first light

D Echeverri, J Xuan, N Jovanovic… - Journal of …, 2023 - spiedigitallibrary.org
Vortex fiber nulling (VFN) is a single-aperture interferometric technique for detecting and
characterizing exoplanets separated from their host star by less than a diffracted beam …

Efficient spectroscopy of exoplanets at small angular separations with vortex fiber nulling

G Ruane, J Wang, D Mawet, N Jovanovic… - The Astrophysical …, 2018 - iopscience.iop.org
Instrumentation designed to characterize potentially habitable planets may combine
adaptive optics and high-resolution spectroscopy techniques to achieve the highest possible …