Euclid will be the first space mission to survey most of the extragalactic sky in the 0.95-2.02 µm range, to a 5 σ point-source median depth of 24.4 AB mag. This unique photometric dataset will find wide use beyond Euclid's core science. In this paper, we present accurate computations of the Euclid Y E, J E, and H E passbands used by the Near

Ultrashort-period (USP) exoplanets have orbital periods shorter than 1 day. Precise masses and radii of USP exoplanets could provide constraints on their unknown formation and evolution processes. We present the work from Lam et al. 2021 (Science, 374, 1271) and report the detection and characterization of the USP planet GJ 367b using high

We explore the metallicity dependence of granulation parameters for thousands of red giants observed with Kepler, and find a significant dependence of granulation amplitudes with metallicity. NASA's Kepler mission has observed almost 200,000 stars during its nominal operation, including more than 20,000 red giants with solar-like oscillations. We

We present an analysis of the heavy element compositions of the Magellanic Cloud planetary nebulae (PNe) SMP 29, SMP 73, and SMP 99 in the LMC, and SMC SMP 13, based on high-resolution near-infrared spectra. The observations were conducted with IGRINS (Park et al. 2014, SPIE, 9147, 91471D), a high-resolution (R = 45,000) H and K band spectrometer

Hot and ultra-hot Jupiters, gas-giant planets with short orbital period, and hot, extended atmospheres, are most suitable objects in order to study the chemical composition of the atmospheres using emission and transmission spectroscopy. Their tidally-locked nature leads to big differences between night and day side temperatures, and in consequence

Ultra-hot jupiters (UHJs) are giant planets on short orbital periods with high equilibrium temperature (T eq) values. Their hot, extended atmospheres are perfect laboratories for transmission spectroscopy studies based on high-resolution spectrographs. In recent years, a variety of atoms and molecules were found in their atmospheres, using