From the 1 of 18 linked papers with an AI index.
18 papers
A Stable Mineral Fingerprint in the Fading Warm Debris Disk around HD 15407A
Shu Wang, Zhuochao Huang, Xiaodian Chen +2
Extreme debris disks provide time-domain probes of rocky planet assembly after giant impacts. We compare Spitzer and JWST spectra of the warm debris disk around HD 15407A, obtained…
SPHEREx Ultracool Dwarf spectrophotometric Atlas (SUDA): Atmospheric and Fundamental Parameters of Ultracool Dwarfs
Zhijun Tu, Shu Wang, Haomiao Huang +2
The paper presents the SPHEREx Ultracool Dwarf spectrophotometric Atlas (SUDA), a homogeneous dataset of 1675 field ultracool dwarfs with continuous 0.75–5 µm spectra, and derives…
Distance-Ladder Measurements of the Hubble Constant: Recent Progress, Systematics, and Prospects
Xiaodian Chen, Shu Wang
The Hubble constant, \(H_0\), links the nearby distance scale to the present cosmic expansion rate. Local distance-ladder measurements now reach percent-level precision and remain…
A Planetary Nebula from a 5.7 Progenitor in a 90 Myr M31 Star Cluster
Pinjian Chen, Bingqiu Chen, Xiaodian Chen +2
Planetary nebulae (PNe) trace the late evolution of low-to-intermediate-mass stars, yet the masses of their progenitors are rarely measured directly. Here we present a PN physicall…
A Search for High Frequency Oscillations in TESS Cycle 7
Guanda Huang, Xiaodian Chen, Shu Wang +2
High-quality, short-cadence photometry from TESS enables the detection of rapid oscillators with unprecedented sensitivity. In this work, we conduct a homogeneous search for high-f…
A Search for Variability of Ultracool Dwarfs with the Zwicky Transient Facility
Haomiao Huang, Shu Wang, Xiaodian Chen +2
Rotationally modulated photometric variability of ultracool dwarfs encodes key information about cloud structure and temperature contrasts. Large homogeneous optical datasets are c…