Red giants observed by CoRoT and APOGEE: The evolution of the Milky Way's radial metallicity gradient
Using combined asteroseismic and spectroscopic observations of 418 red-giant stars close
to the Galactic disc plane (6 kpc< R Gal≲ 13 kpc,| Z Gal|< 0.3 kpc), we measure the age …
to the Galactic disc plane (6 kpc< R Gal≲ 13 kpc,| Z Gal|< 0.3 kpc), we measure the age …
HELIOS–RETRIEVAL: an open-source, nested sampling atmospheric retrieval code; application to the HR 8799 exoplanets and inferred constraints for planet …
We present an open-source retrieval code named HELIOS–RETRIEVAL, designed to obtain
chemical abundances and temperature–pressure profiles by inverting the measured spectra …
chemical abundances and temperature–pressure profiles by inverting the measured spectra …
1–2.4 μm Near-IR spectrum of the giant planet β pictoris b obtained with the gemini planet imager
Abstract Using the Gemini Planet Imager located at Gemini South, we measured the near-
infrared (1.0–2.4 μm) spectrum of the planetary companion to the nearby, young star β …
infrared (1.0–2.4 μm) spectrum of the planetary companion to the nearby, young star β …
The orbit and transit prospects for β pictoris b constrained with one milliarcsecond astrometry
ABSTRACT A principal scientific goal of the Gemini Planet Imager (GPI) is obtaining
milliarcsecond astrometry to constrain exoplanet orbits. However, astrometry of directly …
milliarcsecond astrometry to constrain exoplanet orbits. However, astrometry of directly …
Low metallicities and old ages for three ultra-diffuse galaxies in the Coma cluster
M Gu, C Conroy, D Law, P van Dokkum… - The Astrophysical …, 2018 - iopscience.iop.org
A large population of ultra-diffuse galaxies (UDGs) was recently discovered in the Coma
cluster. Here we present optical spectra of three such UDGs, DF 7, DF 44, and DF 17, which …
cluster. Here we present optical spectra of three such UDGs, DF 7, DF 44, and DF 17, which …
The interaction of the Fermi bubbles with the Milky Way's hot gas halo
MJ Miller, JN Bregman - The Astrophysical Journal, 2016 - iopscience.iop.org
The Fermi bubbles are two lobes filled with non-thermal particles that emit gamma rays,
extend $\approx 10\,{\rm {kpc}} $ vertically from the Galactic center, and formed from either …
extend $\approx 10\,{\rm {kpc}} $ vertically from the Galactic center, and formed from either …
Characterizing the protolunar disk of the accreting companion GQ Lupi B
GQ Lup B is a young and accreting, substellar companion that appears to drive a spiral arm
in the circumstellar disk of its host star. We report high-contrast imaging observations of GQ …
in the circumstellar disk of its host star. We report high-contrast imaging observations of GQ …
Observing the host galaxies of high-redshift quasars with JWST: predictions from the BlueTides simulation
The bright emission from high-redshift quasars completely conceals their host galaxies in
the rest-frame ultraviolet/optical, with detection of the hosts in these wavelengths eluding …
the rest-frame ultraviolet/optical, with detection of the hosts in these wavelengths eluding …
Elemental Abundances in M31: First Alpha and Iron Abundance Measurements in M31's Giant Stellar Stream∗
We present the first measurements of [Fe/H] and a Fe[] abundances, obtained using spectral
synthesis modeling, for red giant branch stars in M31ʼs giant stellar stream (GSS). The …
synthesis modeling, for red giant branch stars in M31ʼs giant stellar stream (GSS). The …
The TREX Survey: Kinematical Complexity Throughout M33's Stellar Disk and Evidence for a Stellar Halo
KM Gilbert, ACN Quirk, P Guhathakurta… - The Astrophysical …, 2022 - iopscience.iop.org
We present initial results from a large spectroscopic survey of stars throughout M33's stellar
disk. We analyze a sample of 1667 red giant branch (RGB) stars extending to projected …
disk. We analyze a sample of 1667 red giant branch (RGB) stars extending to projected …