Tootfinder

Distance estimate method for Asymptotic Giant Branch stars using Infrared Spectral Energy Distributions
Rajorshi Bhattacharya, Brandon M. Medina, Ylva M. Pihlstr\"om, Lor\'ant O. Sjouwerman, Megan O. Lewis, Raghvendra Sahai, Michael C. Stroh, Luis Henry Quiroga-Nu\~nez, Huib Jan van Langevelde, Mark J Claussen, Rachel Weller
https://<…

Distance estimate method for Asymptotic Giant Branch stars using Infrared Spectral Energy Distributions
We present a method to estimate distances to Asymptotic Giant Branch (AGB) stars in the Galaxy, using spectral energy distributions (SEDs) in the near- and mid-infrared. By assuming that a given set of source properties (initial mass, stellar temperature, composition, and evolutionary stage) will provide a typical SED shape and brightness, sources are color-matched to a distance-calibrated template and thereafter scaled to extract the distance. The method is tested by comparing the distances ob…

🔊 #NowPlaying on #BBC6Music's #6MusicArtistCollection
Paul Weller:
🎵 Jam In A Minor / I Walk On Gilded Splinters - Phoenix Festival 1995
#PaulWeller
https://open.spotify.com/track/6sWtT7rKG8Cu5izK7LRKny

Generation of gigahertz frequency surface acoustic waves in YIG/ZnO heterostructures
Finlay Ryburn, Kevin K\"unstle, Yangzhan Zhang, Yannik Kunz, Timmy Reimann, Morris Lindner, Carsten Dubs, John F. Gregg, Mathias Weiler
https://arxiv.org/abs/2403.03006

Generation of gigahertz frequency surface acoustic waves in YIG/ZnO heterostructures
We study surface acoustic waves (SAWs) in yttrium iron garnet (YIG)/zinc oxide (ZnO) heterostructures, comparing the results of a computationally lightweight analytical model with time-resolved micro-focused Brillouin light scattering data. Interdigital transducers (IDTs), with operational frequencies in the gigahertz regime, were fabricated on 50 and 100nm thin films of YIG prior to sputter deposition of 830nm and 890nm films of piezoelectric ZnO. We find good agreement between our analytical …

The Tortured Musoems Department
#BobsBurgers

The Tortured Musoems Department
In an oceanside wharf town, Courtney Wheeler’s father has recorded a new album by Jimmy Pesto Jr. And of course Tina is into it, and Peter Pescadero’s legs will try to dance to it.

🔊 #NowPlaying on #BBC6Music's #6MusicArtistCollection
Paul Weller:
🎵 Jam In A Minor / I Walk On Gilded Splinters - Phoenix Festival 1995
#PaulWeller
https://open.spotify.com/track/6sWtT7rKG8Cu5izK7LRKny

Non-Destructive, High-Resolution, Chemically Specific, 3D Nanostructure Characterization using Phase-Sensitive EUV Imaging Reflectometry
Michael Tanksalvala, Christina L. Porter, Yuka Esashi, Bin Wang, Nicholas W. Jenkins, Zhe Zhang, Galen P. Miley, Joshua L. Knobloch, Brendan McBennett, Naoto Horiguchi, Sadegh Yazdi, Jihan Zhou, Matthew N. Jacobs, Charles S. Bevis, Robert M. Karl Jr., Peter Johnsen, David Ren, Laura Waller, Daniel E. Adams, Seth L. Cousin, Chen-Ting Liao, Jianwei Miao…

Non-Destructive, High-Resolution, Chemically Specific, 3D Nanostructure Characterization using Phase-Sensitive EUV Imaging Reflectometry
Next-generation nano and quantum devices have increasingly complex 3D structure. As the dimensions of these devices shrink to the nanoscale, their performance is often governed by interface quality or precise chemical or dopant composition. Here we present the first phase-sensitive extreme ultraviolet imaging reflectometer. It combines the excellent phase stability of coherent high-harmonic sources, the unique chemical- and phase-sensitivity of extreme ultraviolet reflectometry, and state-of-th…

The Tortured Musoems Department
#BobsBurgers

The Tortured Musoems Department
In an oceanside wharf town, Courtney Wheeler’s father has recorded a new album by Jimmy Pesto Jr. And of course Tina is into it, and Peter Pescadero’s legs will try to dance to it.

One of the drawbacks to NH State Rep. Jonah Wheeler is the chance of them going and supporting bad things like Friedmanianism

Fast and accurate log-determinant approximations
Owen Deen, Colton River Waller, John Paul Ward
https://arxiv.org/abs/2403.14609 https://

Fast and accurate log-determinant approximations
We consider the problem of estimating log-determinants of large, sparse, positive definite matrices. A key focus of our algorithm is to reduce computational cost, and it is based on sparse approximate inverses. The algorithm can be implemented to be adaptive, and it uses graph spline approximation to improve accuracy. We illustrate our approach on classes of large sparse matrices.

GHOST Commissioning Science Results III: Characterizing an iron-poor damped Lyman $\alpha$ system
Trystyn A. M. Berg, Christian R. Hayes, Stefano Cristiani, Alan McConnachie, Federico Sestito, Chris Simpson, Fletcher Waller, Timothy Chin, Adam Densmore, Ruben J. Diaz, Michael L. Edgar, Javier Fuentes Lettura, Manuel G\'omez-Jim\'enez, Venu M. Kalari, Jon Lawrence, Steven Margheim, John Pazder, Roque Ruiz-Carmona, Ricardo Salinas, Karleyne M. G. Silva, Katherine Silversides, Kim…

GHOST Commissioning Science Results III: Characterizing an iron-poor damped Lyman $α$ system
The Gemini High-resolution Optical SpecTrograph (GHOST) is a new echelle spectrograph available on the Gemini-South telescope as of Semester 2024A. We present the first high resolution spectrum of the quasar J1449-1227 (redshift z_em=3.27) using data taken during the commissioning of GHOST. The observed quasar hosts an intervening iron-poor ([Fe/H] = -2.5) damped Lyman alpha (DLA) system at redshift z=2.904. Taking advantage of the high spectral resolving power of GHOST (R~55000), we are able t…