Results 61 to 70 of about 590 (185)

Interruptive Collective Action: Temporality, Spatiality and Affectivity of Change

Journal for the Theory of Social Behaviour, Volume 56, Issue 3, September 2026.
ABSTRACT This paper develops the concept of interruptive collective action to theorise a contemporary form of protest through temporal, spatial and affective transformations. Although all protests suspend the ordinary, interruptive actions extend this suspension by exposing systemic injustices and refusing to operate within the representational or end ...
İlayda Üstel, Ana Đorđević
wiley   +1 more source

Hidden Molecular Bullets in Compact Young Planetary Nebulae

The Astronomical Journal
For the three planetary nebulae M 1-11, Vy 2-2, and Hen 2-459, we report the detection of kinematically distinct structures that exhibit different states and mechanisms of excitation in molecular hydrogen (H _2 ).
Kyle F. Kaplan, Harriet L. Dinerstein, Daniel T. Jaffe   +2 more
doaj   +1 more source

Irradiation Investigation: Exploring the Molecular Gas in NGC 7293

Galaxies, 2020
Background: Many planetary nebulae retain significant quantities of molecular gas and dust despite their signature hostile radiation environments and energetic shocks.
Jesse Bublitz, Joel Kastner, Pierre Hily-Blant, Thierry Forveille, Miguel Santander-García, Valentin Bujarrabal, Javier Alcolea, Rodolfo Montez   +7 more
doaj   +1 more source

Microstructural evidence for multiple generations of sulfide precipitation and impact‐induced thermal alteration under acidic conditions on Asteroid Ryugu

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2201-2217, September 2026.
Abstract Here we report on the microstructure and chemistry of sulfide minerals returned from asteroid (162173) Ryugu. We identify a unique sulfide population in particle A0016 composed of violarite (FeNi2S4), pyrite (FeS2), chalcopyrite (CuFeS2), pyrrhotite (Fe1‐xS), and pentlandite ([Fe,Ni]9S8).
M. C. Benner, B. S. Prince, D. L. Schrader, T. J. Zega   +3 more
wiley   +1 more source

The Painterly Materiality of Clouds in Antony and Cleopatra and Hamlet

Renaissance Studies, Volume 40, Issue 4, Page 589-608, September 2026.
Abstract This article examines the cloud‐gazing scenes in Antony and Cleopatra and Hamlet through the lens of early modern artistic theory and material practices, particularly the art of limning. Building upon existing philosophical and poetic interpretations of Shakespearean clouds as metaphors for ephemerality and memory, the essay argues that the ...
Anne‐Valérie Dulac
wiley   +1 more source

The Outflowing [O ii] Nebulae of Compact Starburst Galaxies at z ∼ 0.5

The Astrophysical Journal
High-velocity outflows are ubiquitous in compact, massive ( M _* ∼ 10 ^11 M _⊙ ), z ∼ 0.5 galaxies with extreme star formation surface densities (Σ _SFR ∼ 2000 M _⊙ yr ^−1 kpc ^−2 ).
Serena Perrotta, Alison L. Coil, David S. N. Rupke, Wenmeng Ning, Brendan Duong, Aleksandar M. Diamond-Stanic, Drummond B. Fielding, James E. Geach, Ryan C. Hickox, John Moustakas, Gregory H. Rudnick, Paul H. Sell, Cameren N. Swiggum, Christy A. Tremonti   +13 more
doaj   +1 more source

The Ejecta Nebula Around the Wolf–Rayet Star WR 71

The Astronomical Journal
We present deep H α and [O iii ] images of the ejecta-rich nebulosity associated with the suspected runaway and binary Wolf–Rayet (WR) star WR 71 (HD 143414). In H α emission, the nebula appears as a crescent shaped, broken ring of clumpy emission some ${
Robert A. Fesen, Manuel C. Peitsch, Martin R. Pugh, Bray Falls, Marcel Drechsler   +4 more
doaj   +1 more source

Persistent Radio Sources and Multiwavelength Counterparts of Fast Radio Bursts: Magnetar Wind Nebulae and Bow Shocks in Massive Binary Systems

The Astrophysical Journal
Fast radio bursts (FRBs) are millisecond-duration pulses originating from cosmological distances. Multiwavelength counterparts associated with FRBs are important for unveiling their physical origins.
Z. Y. Zhao, Q. Wu, F. Y. Wang, Z. G. Dai
doaj   +1 more source

CO observations in rotating circumbinary post-AGB disks

Astronomy & Astrophysics
Context. There is a group of post-asymptotic giant branch (post-AGB) stars that are part of a binary system and that show a significant infrared excess.
Gallardo Cava I., Alcolea J., Van Winckel H., Bujarrabal V., Santander-García M., Gómez-Garrido M.   +5 more
doaj   +1 more source

PAH and H₂emission in the Ring Nebula

Journal of Physics: Conference Series, 2016
This paper presents the Spitzer IRS (Infra Red Spectrograph) detection of mid-infrared polycyclic aromatic hydrocarbon (PAH) emission features and H2 associated with dense knots in the ring of the "oxygen-rich" (C/O~0.6-0.8) planetary nebula (PN) NGC6720 (Ring Nebula). We explored a further three oxygen-rich extended PNe with similar dataset available.
Cox, N.~l.~j., Pilleri, P., Berné, O., Cernicharo, J., Joblin, C.   +4 more
openaire   +2 more sources