Tootfinder

A Statistical Approach to Quantifying Uncertainty in Meteoroid Physical Properties
Maximilian Vovk, Denis Vida, Peter G. Brown
https://arxiv.org/abs/2506.21701

A Statistical Approach to Quantifying Uncertainty in Meteoroid Physical Properties
Meteoroid bulk density is a critical value required for assessing impact risks to spacecraft, informing shielding and mission design. Direct bulk density measurements for sub-millimeter to millimeter-sized meteoroids are difficult, often relying on forward modeling without robust uncertainty estimates. Methods based solely on select observables can overlook noise-induced biases and non-linear relations between physical parameters. This study aims to automate the inversion of meteoroid physical …

A New Method for the Discovery of the Distant Exoplanets II: Question of Signal-to-Noise Ratio
Peter B. Lerner
https://arxiv.org/abs/2507.10764 https://

A New Method for the Discovery of the Distant Exoplanets II: Question of Signal-to-Noise Ratio
Exoplanets with a long orbital period are difficult to discover by extant methods. Our first publication (Lerner, P., A. Mayer, T. E. Sullivan. 2023. A new method for the discovery of the distant exoplanets. SPIE Proceedings 12680: 126802(M)) proposed a Hanbury-Brown-Twiss (HBT) interferometry-inspired method to find exoplanets with a very slow-changing influence on their host star. Traditional HBT interferometry measured the modulus of the correlation function. Slight modification of the HBT c…

This https://arxiv.org/abs/2503.19322 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

A 1.48-2.48 $\mathrmμ$m R=28000 spectroscopic atlas of the L7.5 and T0.5 components of the nearest pair of brown dwarfs: Luhman 16AB
We present a high signal-to-noise (SNR $\sim$ 450), high-dispersion ($R \equiv λ/ Δλ\sim 28\,000$) H- and K-band spectroscopic atlas of the L7.5 and T0.5 components of the Luhman 16AB binary (WISE J104915.57$-$531906.1AB): the closest pair of brown dwarfs, and one of the best substellar benchmarks. The spectra were combined from a 70-day spectroscopic monitoring campaign of the binary with IGRINS on Gemini South. We fit model photospheres to the combined high-quality spectra to estimate atmo…