Tootfinder

Demonstration of a next-generation wavefront actuator for gravitational-wave detection
Tyler Rosauer, Huy Tuong Cao, Mohak Bhattacharya, Peter Carney, Luke Johnson, Shane Levin, Cynthia Liang, Xuesi Ma, Luis Martin Gutierrez, Michael Padilla, Liu Tao, Aiden Wilkin, Aidan Brooks, Jonathan W. Richardson
https://arxiv.org/abs/2509.08766

Demonstration of a next-generation wavefront actuator for gravitational-wave detection
In the last decade, the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the European Virgo observatory have opened a new observational window on the universe. These cavity-enhanced laser interferometers sense spacetime strain, generated by distant astrophysical events such as black hole mergers, to an RMS fluctuation of a few parts in $10^{21}$ over a multi-kilometer baseline. Optical advancements in laser wavefront control are key to advancing the sensitivity of current detector…

Inferring Mbh-Mbulge Evolution from the Gravitational Wave Background
Cayenne Matt, Kayhan Gultekin, Luke Kelley, Laura Blecha, Joseph Simon, Gabriella Agazie, Akash Anumarlapudi, Anne Archibald, Zaven Arzoumanian, Jeremy Baier, Paul Baker, Bence B\'ecsy, Adam Brazier, Paul Brook, Sarah Burke-Spolaor, Rand Burnette, Robin Case, James Casey-Clyde, Maria Charisi, Shami Chatterjee, Tyler Cohen, James Cordes, Neil Cornish, Fronefield Crawford, H. Thankful Cromartie, Kathryn Crowter, Me…

Inferring Mbh-Mbulge Evolution from the Gravitational Wave Background
We test the impact of an evolving supermassive black hole (SMBH) mass scaling relation (Mbh-Mbulge) on the predictions for the gravitational wave background (GWB). The observed GWB amplitude is 2-3 times higher than predicted by astrophysically informed models which suggests the need to revise the assumptions in those models. We compare a semi-analytic model's ability to reproduce the observed GWB spectrum with a static versus evolving-amplitude Mbh-Mbulge relation. We additionally consider the…

#WhoFi: It is now possible to track people based on how their bodies (without devices!) block wifi signals
https://www.theregister.com/2025/07/22/whofi_wifi_identifier/…

A Promise for the JWST era: Massive black holes directly collapsed from wave dark matter haloes, and Star formation in and around their accretion flows
Xiaobo Dong, Yongda Zhu, Marcia Rieke, George Rieke, Xinyu Li, Peter Behroozi, Haixia Ma, Runyu Meng, Zhiying Mao, Zhe Sun
https://arxiv.org/abs/2508.09258

A Promise for the JWST era: Massive black holes directly collapsed from wave dark matter haloes, and Star formation in and around their accretion flows
There are several puzzling phenomena from recent JWST observations, which seem to push the standard ΛCDM cosmology over the edge. All those puzzles can be understood in a coherent way if we assume that first massive black holes (MBHs, the "heavy eggs") formed by directly collapsing from wave CDM haloes, which can be even earlier than the formation of first galaxies (the "chickens"). We elucidate two false obstacles that have been believed to prevent wave CDM haloes from collapsing into black h…

Searching for continuous gravitational waves in the Parkes Pulsar Timing Array DR3
Shi-Yi Zhao, Zu-Cheng Chen, Jacob Cardinal Tremblay, Boris Goncharov, Xing-Jiang Zhu, N. D. Ramesh Bhat, Ma{\l}gorzata Cury{\l}o, Shi Dai, Valentina Di Marco, Hao Ding, George Hobbs, Agastya Kapur, Wenhua Ling, Tao Liu, Rami Mandow, Saurav Mishra, Daniel J. Reardon, Christopher J Russell, Ryan M. Shannon, Shuangqiang Wang, Lei Zhang, Andrew Zic

Searching for continuous gravitational waves in the Parkes Pulsar Timing Array DR3
We present results from an all-sky search for continuous gravitational waves from individual supermassive binary black holes using the third data release (DR3) of the Parkes Pulsar Timing Array (PPTA). Even though we recover a common-spectrum stochastic process, potentially induced by a nanohertz gravitational wave background, we find no evidence of continuous waves. Therefore, we place upper limits on the gravitational-wave strain amplitude: in the most sensitive frequency range around 10 nHz,…

Strong long-wavelength electron-phonon coupling in Ta$_2$Ni(Se,S)$_5$
Zhibo Kang, Burak Gurlek, Weichen Tang, Xiang Chen, Jacob P. C. Ruff, Ahmet Alatas, Ayman Said, Robert J. Birgeneau, Steven G. Louie, Angel Rubio, Simone Latini, Yu He
https://arxiv.org/abs/2509.09620

Strong long-wavelength electron-phonon coupling in Ta$_2$Ni(Se,S)$_5$
The search for intrinsic excitonic insulators (EI) has long been confounded by coexisting electron-phonon coupling in bulk materials. Although the ground state of an EI may be difficult to differentiate from density-wave orders or other structural instabilities, excited states offer distinctive signatures. One way to provide clarity is to directly inspect the phonon spectral function for long wavelength broadening due to phonon interaction with the high velocity EI phason. Here, we report that …

JWST/NIRCam imaging of the Bipolar Planetary Nebula NGC 6537: the (Infra)red Spider, Revealed
Joel Kastner (Rochester Institute of Technology, USA), Paula Moraga Baez (RIT), Bruce Balick (University of Washington, USA), Rodolfo Montez Jr. (CfA/SAO, USA), Caroline Geiser (Max Planck Institute, Germany), Mikako Matsuura (Cardiff University, UK), Jason Nordhaus (RIT), Miguel Santander-Garcia (OAN, Spain)

JWST/NIRCam imaging of the Bipolar Planetary Nebula NGC 6537: the (Infra)red Spider, Revealed
We present James Webb Space Telescope (JWST) near-infrared (NIRCam) Br$α$, H$_2$, [Fe II], and PAH imaging of the molecule-rich, high-excitation bipolar planetary nebula (PN) NGC 6537 (the Red Spider), complemented by new ALMA and Chandra observations and archival HST images. The resulting multiwavelength view of the Red Spider establishes the detailed lobe/torus structure of the nebula and the mass-loss history of its progenitor star. The extinction-penetrating JWST/NIRCam Br$α$ and PAH and …