8 papers
Rogue Ones: Orbital census of Galactic Cepheids and their Anomalies
Shourya Khanna, Ronald Drimmel, Eloisa Poggio +2
Classical Cepheids (DCEPs) are excellent standard candles expected to trace the spatial and kinematic distribution of the Galaxy's young and dynamically cold stellar disc. Using th…
High-fidelity stellar extinction with Gaia and APOGEE -- I. The method and a new extinction curve
Jie Yu, Luca Casagrande, John A. Taylor +9
The scarcity of high-fidelity extinction measurements remains a bottleneck in deriving accurate stellar properties from Gaia parallaxes. In this work, we aim to derive precision ex…
SpiralMap: A Python library of the Milky Way's spiral arms
Abhay Kumar Prusty, Shourya Khanna
We present a library of the major spiral arm models (and maps) of the Galaxy. The package is written in Python, and allows the user to both extract the 2D trace and overplot the sp…
The Effect of a Non-universal Extinction Curve on the Wesenheit Function and Cepheid Distances
D. M. Skowron, M. L. Fouesneau, R. Drimmel +1
The Wesenheit function is widely used to reduce the effects of interstellar reddening in distance measurements. Its construction, however, relies on the assumption of a universal e…
GaiaUnlimited: The old stellar disc of the Milky Way as traced by the Red Clump
Shourya Khanna, Jie Yu, Ronald Drimmel +9
We present an exploration of the Milky Way's structural parameters using an all-sky sample of RC giants to map the stellar density from the Galactic disc beyond 3 kpc. These evolve…
The Milky Way as Seen by Classical Cepheids II: Spiral Structure
Ronald Drimmel, Shourya Khanna, Eloisa Poggio +1
As a relatively young and bright population and the archetype of standard candles, classical Cepheids are an ideal population on which to trace the non-axisymmetric structure in th…