$GAIA gaia

Latest papers

1. The Solar System through dust maps. Encounter statistics with interstellar gas astro-ph.GA · 19 Oct · 1 hit

   …motion and ISM stratification influence these statistics. We quantify gas influx and dust exposure. We use Gaia-based 3D dust maps of the Solar neighborhood, sampled by integrating the Solar System along its Galactic…

2. A 36.34-day Sub-Neptune Candidate Transiting the Nearby K Dwarf TIC 402710280 astro-ph.EP · 19 Oct · 1 hit

   …\pm 0.004$. No high-resolution imaging exists, so companions within about $1''$ are constrained only by Gaia astrometry. The mid-times scatter about a linear ephemeris by 21.8 min (rms). Quick-Look Pipeline light…

3. Kinematic structure and age of a Scorpius--Centaurus subcomponent: implications for PDS 70 planetary system astro-ph.SR · 19 Oct · 2 hits

   …(WiFeS) on the ANU 2.3~m telescope, reducing uncertainties by a factor of $\sim5.5$ compared to \textit{Gaia}. %We supplement these measurements with H$\alpha$ and lithium equivalent widths as youth diagnostics.…

4. Gravity-mode main-sequence asteroseismology of 16 open clusters and associations astro-ph.SR · 19 Oct · 1 hit

   …Using light curves from the Kepler and TESS space missions, together with membership constraints based on Gaia astrometry, we identify g-mode period-spacing patterns in dozens of early-type ($T_{\rm eff} \gtrsim…

5. Plate-YOLO: An End-to-End Object Detection Framework for Robust Astrometric Registration of Historical Plates astro-ph.IM · 19 Oct · 1 hit

   …attention, a high-resolution P2 head, and a Normalized Wasserstein Distance loss for small bounding boxes. A Gaia-guided fine-tuning procedure uses initially solved plates to construct labels for a new archive. On 150…

6. IMF-aware N-body forward modelling of membership selection functions for young open clusters astro-ph.GA · 18 Oct · 1 hit

   …Our framework simulates clusters with IMF slopes $\alpha_2 = -2.7, -2.3, -1.9$, converts them into synthetic Gaia observations, adds mock field populations, and recovers members with HDBSCAN to mimic observational…

7. Companions of Hot Jupiters: two decades of radial velocity monitoring with CORALIE astro-ph.EP · 18 Oct · 1 hit

   …mechanism shaping hot Jupiters with outer companions. Combining long-baseline radial velocities with future Gaia astrometry will further constrain companion masses, mutual inclinations, and dynamical histories.

8. A Hectospec Spectroscopic Census of Kinematic Members in the Orion Nebula Cluster astro-ph.SR · 16 Oct · 1 hit

   …of pre-main-sequence stars. We combine these measurements with a kinematic membership analysis based on Gaia Data Release 3 astrometry to identify and confirm cluster members. Using these combined diagnostics, we…