Tootfinder

#retrocomputing quiz time, how much do you think this 1994 optical 2.6GB (or 5.2GB if you use both sides of the disks) storage system sold for (in today's money)?
solution in a reply

Edge-On Disk Study (EODS) III: Molecular Stratification in the Flying Saucer Disk
A. Dutrey, O. Denis-Alpizar, S. Guilloteau, C. Foucher, S. Gavino, D. Semenov, V. Pietu, E. Chapillon, L. Testi, E. Dartois, E. DiFolco, K. Furuya, U. Gorti, N. Grosso, Th. Henning, J. M. Hur\'e, \'A. K\'osp\'al, F. Le Petit, L. Majumdar, R. Meshaka, H. Nomura, N. T. Phuong, M. Ruaud, Y. W. Tang, S. Wolf

Edge-On Disk Study (EODS) III: Molecular Stratification in the Flying Saucer Disk
Context: Investigating the vertical distribution of molecular content in protoplanetary disks remains difficult in most disks mildly inclined along the line of sight. In contrast, edge-on disks provide a direct (tomographic) view of the 2D molecular brightness. Aims: We study the radial and vertical molecular distribution as well as the gas temperature and density by observing the Keplerian edge-on disk surrounding the Flying Saucer, a Class II object located in Ophiuchus. Methods: We use new a…

trec: TREC collection (2010)
A bipartite network of documents and the words they contain, extracted from NIST's Text Retrieval Conference (TREC) disks 4 and 5, from 2010. These archives contain material drawn from the Financial Times Ltd., the Congressional Record of the 103rd Congress, the Federal Register, the Foreign Broadcast Information Service, and the Los Angeles Times newspaper.
This network has 1729302 nodes and 83629405 edges.
Tags: Informational, Language, Un…

"Each #prisoner is allowed 20 floppy disks, but flash drives are verboten."

Just posted a public test build of OmniDiskSweeper 1.16:
https://omnistaging.omnigroup.com/omnidisksweeper/
• Accessible Sizes — Each file now provides an accessibility title (e.g. “Desktop"), an accessibility value describing its size (e.g. “need permission to fully…

PSG edged out Barca in a close, exciting match and I am thrilled and celebrating by staying up late (imma try, anyway!) and spinning jazzy disks, starting with Sun Ra!
Did you know, according to Wikipedia the Sun Ra discography is one of the largest in music history and this is (a repressing of) his very first studio album, from 1957.
I don't really like it, ha ha! (My son gave it to me.) Maybe I'll trade it in and make space on the shelf.

Thick Disks around White Dwarfs viewed 'Edge-off': Effects on Transit Properties and Infrared Excess
Soumyadeep Bhattacharjee
https://arxiv.org/abs/2507.20594 https://…

Thick Disks around White Dwarfs viewed 'Edge-off': Effects on Transit Properties and Infrared Excess
A significant fraction of white dwarfs (WDs) host dust/debris disks formed from the tidal disruption of asteroids and planetsimals. Several studies indicate that the disks can attain significant vertical heights through collisional cascade. In this work I model the effects of geometrically thick disks on two primary observables: photometric transits by the disk when viewed at high inclinations and infrared dust emission. Specifically, I consider disks with a Gaussian vertical profile with scale…

Aligned Hierarchical Black Hole Mergers in AGN disks revealed by GWTC-4
Yin-Jie Li, Yuan-Zhu Wang, Shao-Peng Tang, Yi-Zhong Fan
https://arxiv.org/abs/2509.23897 https://

Aligned Hierarchical Black Hole Mergers in AGN disks revealed by GWTC-4
The active galactic nucleus (AGN) accretion disks are ideal sites for hierarchical black hole (BH) mergers. To robustly probe such a possibility, we analyze binary black hole mergers in the GWTC-4 with a flexible mixture population model for component masses, spin magnitudes, and spin tilt angles, and identify two distinct subpopulations. In the second subpopulation characterized by high spin magnitudes $χ\sim 0.8$ as well as the broad mass distribution up to $\gtrsim 150M_\odot$, we find a pr…

On the Interpretation of Velocity Residuals in Protoplanetary Disks
Masataka Aizawa, Ryuta Orihara
https://arxiv.org/abs/2507.23287 https://arxiv.org/pdf/2…

On the Interpretation of Velocity Residuals in Protoplanetary Disks
We present a first-order analytical model for line-of-sight velocity residuals, defined as the difference between observed velocities and those predicted by a fiducial model, assuming a flared, nearly axisymmetric disk with the perturbations in disk surface height $δh(r)$, inclination $δi(r)$, and position angle $δ\mathrm{PA}(r)$. Introducing projection-deprojection mapping between sky-plane and disk-frame coordinates, we demonstrate that the normalized velocity residuals exhibit Fourier com…

Polarization at millimeter wavelengths caused by drifting grains in protoplanetary disks
Moritz Lietzow-Sinjen, Stefan Reissl, Mario Flock, Sebastian Wolf
https://arxiv.org/abs/2509.24594

Polarization at millimeter wavelengths caused by drifting grains in protoplanetary disks
During the evolution of protoplanetary disks, dust grains start to grow, form larger particles, settle to the midplane, and rearrange the disk, mainly by the inward radial drift. Because of this, dust pebbles with an irregular shape usually align mechanically and thus cause polarization signatures in their thermal radiation due to dichroic emission or absorption. The goal of this paper is to evaluate the potential to trace the impact of mechanical grain alignment in protoplanetary disks on the …