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Eccentric binary black holes: A new framework for numerical relativity waveform surrogates
Peter James Nee, Adhrit Ravichandran, Scott E. Field, Tousif Islam, Harald P. Pfeiffer, Vijay Varma, Michael Boyle, Andrea Ceja, Noora Ghadiri, Lawrence E. Kidder, Prayush Kumar, Akash Maurya, Marlo Morales, Antoni Ramos-Buades, Abhishek Ravishankar, Katie Rink, Hannes R. R\"uter, Mark A. Scheel, Md Arif Shaikh, Daniel Tellez

Eccentric binary black holes: A new framework for numerical relativity waveform surrogates
Mounting evidence indicates that some of the gravitational wave signals observed by the LIGO/Virgo/KAGRA observatories might arise from eccentric compact object binaries, increasing the urgency for accurate waveform models for such systems. While for non-eccentric binaries, surrogate models are efficient and accurate, the additional features due to eccentricity have posed a challenge. In this letter, we present a novel method for decomposing eccentric numerical relativity waveforms which makes …

JVM essentials for Elasticsearch: Metrics, memory, and monitoring | Elastic Blog
#java

JVM essentials for Elasticsearch: Metrics, memory, and monitoring
Learn JVM basics, including how to examine memory usage patterns and troubleshoot JVM issues, such as Exit code 127 and Exit code 137, by understanding JVM’s memory management and object reaping via g...

Trump’s Commerce Secretary Loves Tariffs.
His Former Investment Bank Is Taking Bets Against Them
A subsidiary of Cantor Fitzgerald,
which is run by the sons of US commerce secretary Howard Lutnick,
is letting clients essentially bet that Trump’s tariffs will be struck down in court
https://www.

Trump’s Commerce Secretary Loves Tariffs. His Former Investment Bank Is Taking Bets Against Them
A subsidiary of Cantor Fitzgerald, which is run by the sons of US commerce secretary Howard Lutnick, is letting clients essentially bet that President Donald Trump’s tariffs will be struck down in court.

Uniformly-S-essential submodules and uniformly-S-injective uniformly-S-envelopes
Mohammad Adarbeh, Mohammad Saleh
https://arxiv.org/abs/2509.01638 https://…

Uniformly-S-essential submodules and uniformly-S-injective uniformly-S-envelopes
In this paper, we introduce the notion of u-S-essential submodules as a uniform S-version of essential submodules. Let R be a commutative ring and S a multiplicative subset of R. A submodule K of an R-module M is said to be u-S-essential if whenever L is a submodule of M such that s1(K\cap L)=0 for some s1 in S, then s2L = 0 for some s2 in S. Several properties of this notion are studied. The notion of u-S injective u-S-envelope of an R-module M is also introduced and some of its prop…

Nothing unveils its Essential branding for AI products, a new app store with user-designed, AI-generated apps based on Android called Playground, and more (Robert Hart/The Verge)
https://www.theverge.com/news/788242/nothing-ai-os-essential-apps-playground

Nothing’s ‘first step’ to an ‘AI OS’ is not first, or an OS, but is fascinating
Nothing is launching an app store for AI-built smartphone software.

Eccentricity distribution of extreme mass ratio inspirals
Davide Mancieri, Luca Broggi, Morgan Vinciguerra, Alberto Sesana, Matteo Bonetti
https://arxiv.org/abs/2509.02394 https…

Eccentricity distribution of extreme mass ratio inspirals
We present realistic eccentricity distributions for extreme mass ratio inspirals (EMRIs) forming via the two-body relaxation channel in nuclear star clusters, tracking their evolution up to the final plunge onto the central Schwarzschild massive black hole (MBH). We find that EMRIs can retain significant eccentricities at plunge, with a distribution peaking at $e_\mathrm{pl} \approx0.2$, and a considerable fraction reaching much higher values. In particular, up to $20\%$ of the forming EMRIs fe…

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
Nikolai Rimsky-Korsakov, Geoffrey Tozer, Dmitri Kitayenko & Bergen Philharmonic Orchestra:
🎵 Piano Concerto in C-Sharp Minor, Op. 30
#NikolaiRimskyKorsakov
https://open.spotify.com/track/4KL6Dil6UgPMoqy6LTrCU1
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Chase Orbits, not Time: A Scalable Paradigm for Long-Duration Eccentric Gravitational-Wave Surrogates
Akash Maurya, Prayush Kumar, Scott E. Field, Chandra Kant Mishra, Peter James Nee, Kaushik Paul, Harald P. Pfeiffer, Adhrit Ravichandran, Vijay Varma
https://arxiv.org/abs/2510.00116

Chase Orbits, not Time: A Scalable Paradigm for Long-Duration Eccentric Gravitational-Wave Surrogates
Surrogate modeling of eccentric binary black hole waveforms has remained challenging. The complicated morphology of these waveforms due to the eccentric orbital timescale variations makes it difficult to construct accurate and efficient surrogate models, especially for waveforms long enough to cover the sensitivity band of the current ground-based gravitational wave detectors. We present a novel and scalable surrogate building technique which makes surrogate modeling of long-duration eccentric …

🇺🇦 #NowPlaying on BBCRadio3's #EssentialClassics
Pyotr Ilyich Tchaikovsky, Yevgeny Sudbin, Bella Sudbin & Yevgeny Sudbin:
🎵 "The Nutcracker" Suite, Op. 71a, TH 35: III. Waltz of the Flowers
#PyotrIlyichTchaikovsky
https://open.spotify.com/track/4Q7cqKhToOqPRksDMkIv7d

🔊 #NowPlaying on #BBCRadio3:
#EssentialClassics
- The very best of classical music
Georgia Mann plays the best in classical music, with discoveries and surprises rubbing shoulders with familiar favourites.
Relisten now 👇
https://www.bbc.co.uk/programmes/m002hmzy