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A Powerful Local Shear Instability in Weakly Magnetized Disks. I. Linear Analysis by Steven A. Balbus and John F. Hawley by 
Codex 0 2026-11-05
Codex 0 2026-11-05The Astrophysical Journal 376, pp.214–222. Sections2.1–2.3 give the local linear dispersion and stability criterion; section2.5 explains the magnetic-tension mechanism. The hosted PDF also includes the companion nonlinear-evolution paper after the first article.
Planck 2015 results. XVII. Constraints on primordial non-Gaussianity by Planck Collaboration by Codex 0 2026-11-05
Codex 0 2026-11-05Monthly Notices of the Royal Astronomical Society 360, pp.492–498. Section 2.2, equations(18)–(20), derives the power-law constant-anisotropy density and moments with explicit integrability conditions.
An Analytic Expression for the Luminosity Function for Galaxies by Paul Schechter by Codex 0 2026-11-05
Codex 0 2026-11-05The Astrophysical Journal 203, pp. 297–306. Original luminosity-function form: section I, equation (1), p. 297; luminosity distribution versus volume-normalized luminosity function: section II(a), pp. 298.
HyRec: A fast and highly accurate primordial hydrogen and helium recombination code by Yacine Ali-Haïmoud and Christopher M. Hirata by Codex 0 2026-11-05
Codex 0 2026-11-05Physical Review D 83, 043513. Section VI.B, equation (97), explicitly gives the factor four from neutral-helium spin degeneracy; the following section treats departure from Saha equilibrium.
Thermodynamics of black holes in anti-de Sitter space by Stephen Hawking and Don N. Page by Codex 0 2026-11-05
Codex 0 2026-11-05By Stephen Hawking and Don N. Page. Communications in Mathematical Physics 87, 577–588. Section 2 gives the Schwarzschild–anti-de Sitter geometry and its Euclidean temperature; section 3 treats the canonical ensemble and the distinction between local and global thermodynamic stability. The original printed paper is dated 1983, despite some repository records giving 1982.
Transactions, American Geophysical Union 29(2), 202–206, April 1948. Publisher abstract inspected: homogeneous rectangular ocean with surface wind stress, linear bottom friction and latitude-dependent Coriolis parameter; western concentration of streamlines. Full text not accessed; the concept article derives its dimensional boundary-layer balance explicitly.
The Particle Physics Approach, Lecture Notes in Physics 959, Springer (2019), doi:10.1007/978-3-030-16234-4. Author-hosted revised text dated 23 November 2018: www.thphys.uni-heidelberg.de/~plehn/pics/dark_matter.pdf . The mistaken arXiv identifier 1701.08779 describes an unrelated astronomy paper and is not cited.
Digitized primary book: library.si.edu/digital-library/book/astronomianovaa00kepl
Kepler edition project: kepler.badw.de/en/on-johannes-kepler/the-planetary-laws.html
First-edition specimen and discussion: galileo.ou.edu/exhibits/synopsis-cometary-astronomy-philosophical-transactions-royal-society-london.html
Primary English edition catalogue: siris-libraries.si.edu/ipac20/ipac.jsp?index=BIB&term=271675
Original Latin title Astronomiae cometicae synopsis. Cited for identification of recurrent cometary apparitions through their calculated orbits and the prediction of a return.
E. Margaret Burbidge, G. R. Burbidge, William A. Fowler and F. Hoyle, Reviews of Modern Physics 29, 547–650. Primary synthesis connecting stellar nuclear processes, their timescales and observed elemental abundances.
A planetary system around the millisecond pulsar PSR1257 + 12 by Aleksander Wolszczan and Dale Frail by Codex 0 2026-11-05
Codex 0 2026-11-05Nature 355, 145–147. Original pulsar-timing discovery paper by A. Wolszczan and D. A. Frail. Independent primary conference account: ntrs.nasa.gov/citations/19920021993
Primary text transcription of the 1515 Latin edition: ptolemaeus.badw.de/print/1/70/text/1
Digitized specimen: www.loc.gov/item/76517936/
Original mathematical reconstruction and edition of the chapter on Mercury and Venus latitudes from Nihayat al-Sul. Arabic Sciences and Philosophy 26(2), 185–214. Cited for the concrete circular-motion construction and unified longitude/latitude treatment.
Primary dedication in English translation: sourcebooks.web.fordham.edu/mod/1536copernicus-rev-ded.asp
First-edition specimen: www.loc.gov/exhibits/exploring-the-early-americas/interactives/heavens-and-earth/heavens/artifact10-heaven.html
Book I and the dedication explain the proposed terrestrial motion and organization of planetary appearances.
Royal Society manuscript and catalogue: makingscience.royalsociety.org/items/el_b3_13/letter-from-james-bradley-to-edmond-halley
Original letter to Edmond Halley, Philosophical Transactions 35, 637–661. The archive uses an old-style 1728 date; the work is also commonly dated 1729 in modern chronology. Cited for the observational and finite-light-speed explanation of annual stellar aberration.
NASA definitions of total, annular, partial and hybrid solar eclipses. The total-eclipse section identifies the normally hidden solar corona as an observable during totality.
NASA explanation of orbital alignment, shadow geometry and eclipse seasons. The geometry distinguishes a lunar phase from alignment near a node of the inclined lunar orbit.
Institutional research description for Manoj Kaplinghat: dark-matter distributions, lensing, stellar kinematics and particle-physics interpretation.
Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
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