Tootfinder

Flare frequency in M dwarfs belonging to Young Moving Groups
E. Mamonova, Y. Shan, A. F. Kowalski, S. Wedemeyer S. C. Werner
https://arxiv.org/abs/2506.04465

Flare frequency in M dwarfs belonging to Young Moving Groups
Context. M stars are preferred targets for studying terrestrial exoplanets, for which we hope to obtain their atmosphere spectra in the next decade. However, M dwarfs have long been known for strong magnetic activity and the ability to frequently produce optical, broadband emission flares. Aims. We aim to characterise the flaring behaviour of young M dwarfs in the temporal, spectral, and energetic dimensions, as well as examine the stellar parameters governing this behaviour, in order to improv…

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Susan Spain-Dunk, Douglas Bostock & South-West German Chamber Orchestra Pforzheim:
🎵 Suite in B Minor for String Orchestra: II. Interlude
#SusanSpainDunk
https://open.spotify.com/track/2MT0xu2MXuft567CdBG152
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Sonnet 098 - XCVIII
From you have I been absent in the spring,
When proud-pied April, dress'd in all his trim,
Hath put a spirit of youth in every thing,
That heavy Saturn laughed and leapt with him.
Yet nor the lays of birds, nor the sweet smell
Of different flowers in odour and in hue,
Could make me any summer's story tell,
Or from their proud lap pluck them where they grew:
Nor did I wonder at the lily's white,
Nor pr…

Coronal dimmings from active region 13664 during the May 2024 solar energetic events
Amaia Razquin, Astrid M. Veronig, Karin Dissauer, Tatiana Podladchikova, Shantanu Jain
https://arxiv.org/abs/2506.04818

Coronal dimmings from active region 13664 during the May 2024 solar energetic events
Coronal dimmings are regions of transiently reduced brightness in extreme ultraviolet (EUV) and soft X-ray (SXR) emissions associated with coronal mass ejections (CMEs), providing key insights into CME initiation and early evolution. During May 2024, AR 13664 was among the most flare-productive regions in recent decades, generating 55 M-class and 12 X-class flares along with multiple Earth-directed CMEs. The rapid succession of these CMEs triggered the most intense geomagnetic storm in two deca…

D-Rex: Heterogeneity-Aware Reliability Framework and Adaptive Algorithms for Distributed Storage
Maxime Gonthier (University of Chicago, Argonne National Laboratory), Dante D. Sanchez-Gallegos (Universidad Carlos III de Madrid), Haochen Pan (University of Chicago), Bogdan Nicolae (Argonne National Laboratory), Sicheng Zhou (Southern University of Science and Technology), Hai Duc Nguyen (University of Chicago, Argonne National Laboratory), Valerie Hayot-Sasson (University of Chicago, Ar…

D-Rex: Heterogeneity-Aware Reliability Framework and Adaptive Algorithms for Distributed Storage
The exponential growth of data necessitates distributed storage models, such as peer-to-peer systems and data federations. While distributed storage can reduce costs and increase reliability, the heterogeneity in storage capacity, I/O performance, and failure rates of storage resources makes their efficient use a challenge. Further, node failures are common and can lead to data unavailability and even data loss. Erasure coding is a common resiliency strategy implemented in storage systems to mi…

Stellar Magnetic Storm Induced Magnetospheric Polarity Reversals: Distinguishing between Unmagnetised and Magnetised Exoplanets
Sakshi Gupta, Souvik Roy, Dibyendu Nandy
https://arxiv.org/abs/2506.02886

Stellar Magnetic Storm Induced Magnetospheric Polarity Reversals: Distinguishing between Unmagnetised and Magnetised Exoplanets
Exoplanetary and planetary environments are forced by stellar activity which manifest through variable radiation, particle and magnetic fluxes, stellar winds, flares and magnetic storms known as coronal mass ejections (CMEs). Recent studies have shown that (exo)planets with intrinsic magnetic fields and magnetospheres respond differently to this stellar forcing compared to planets which lack an intrinsic magnetism; this is borne out by observations in solar system planets. However, detailed inv…

Green hairstreak seen @ Keyhaven & Pennington Marshes yesterday, 1st I've seen in the UK
#UKButterflies #insects

UK Culture Secretary Lisa Nandy says the BBC had several editorial failures in its Gaza coverage and has a "problem of leadership" (Jake Kanter/Deadline)
https://deadline.com/2025/06/bbc-bob-vylan-lisa-nandy-leadership-problem-1236445…

UK Culture Secretary Says BBC Has “Problem Of Leadership” After String Of Gaza Scandals
UK culture secretary Lisa Nandy has accused the BBC of having a "problem of leadership" after its latest editorial debacle over the Gaza conflict.

Two Cases of Non-Radial Filament Eruption and Associated CME Deflection
Kostadinka Koleva, Ramesh Chandra, Pooja Devi, Peter Duchlev, Momchil Dechev
https://arxiv.org/abs/2507.01580

Two Cases of Non-Radial Filament Eruption and Associated CME Deflection
The purpose of this paper is to analyze the multi-wavelength and multi-instrument observations of two quiescent filament eruptions as well as the deflection of associated CMEs from the radial direction. The events occurred on 18 October 2017 and 9 May 2021, respectively, in the southern solar hemisphere. Both of them and associated flares were registered by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO) and the Solar Terrestrial Relations Observatory-Ahead (S…

Type II radio bursts and space weather phenomena: A statistical study
Pooja Devi, Rositsa Miteva, Ramesh Chandra, Kostadinka Koleva, Bendict Lawrance
https://arxiv.org/abs/2507.01391

Type II radio bursts and space weather phenomena: A statistical study
In this paper, we present for the first time a comprehensive statistical study between type II radio bursts from the metric (m) to the dekameric-hectometric (DH) domain and their associated solar and space weather (SW) phenomena, namely, solar flares (SFs), sunspot (SN) configurations, filament eruptions, coronal mass ejections (CMEs), their interplanetary (IP) counterparts (ICMEs) and shocks, in situ detected particles and geomagnetic storms (GSs). The m-only and m+DH radio signatures are iden…