7 papers
The Roasting Marshmallows Program with IGRINS on Gemini South V: Atmosphere of MASCARA-1b is Enriched in Refractory Elements
Krishna Kanumalla, Michael R. Line, Martina Chiarella +75
Ultra-hot Jupiters (UHJs; K) enable simultaneous detection of volatile (ice-forming) and refractory (rock-forming) species in planetary atmospheres, provi…
Still non-accelerating: age-bias correction in supernova cosmology is robust to host-progenitor age mapping
Chul Chung, Junhyuk Son, Seunghyun Park +4
We re-examine the claim by Wiseman et al. (2026) that progenitor-age bias has a negligible impact on cosmological inferences from Type Ia supernovae (SNe Ia). We show that their in…
Chemical signatures of planetary systems in their host stars. Near-infrared spectroscopy of four planet-hosting wide binaries
Dongwook Lim, Sol Yun, Andreas J. Koch-Hansen +3
An important open question in exoplanet studies is whether planets leave detectable chemical fingerprints on their host stars. While several studies have suggested possible planeta…
How Robust is the Cosmic Distance with Tip of Red Giant Branch against Stellar Population Variations?
Chul Chung, Young-Wook Lee, Suk-Jin Yoon +10
The tip of the red giant branch (TRGB) provides a key standard candle for extragalactic distance measurements and for refining the Hubble constant. We test its robustness by quanti…
Detection of Gravitational Anomaly at Low Acceleration from a Highest-quality Sample of 36 Wide Binaries with Accurate 3D Velocities
K. -H. Chae, B. -C. Lee, X. Hernandez +4
We set out to accurately measure gravity in the low-acceleration range m s from 3D motions of isolated wide binary stars. Gaia DR3 provides precise meas…
Thin coronal jets and plasmoid-mediated reconnection: Insights from Solar Orbiter observations and Bifrost simulations
D. Nóbrega-Siverio, R. Joshi, E. Sola-Viladesau +2
Coronal jets are ubiquitous, collimated million-degree ejections that contribute to the energy and mass supply of the upper solar atmosphere and the solar wind. Solar Orbiter provi…