Results 71 to 80 of about 1,887,037 (257)

EXTENDED HARD X-RAY EMISSION FROM THE VELA PULSAR WIND NEBULA [PDF]

, 2011
The nebula powered by the Vela pulsar is one of the best examples of an evolved pulsar wind nebula, allowing access to the particle injection history and the interaction with the supernova ejecta.
F. Mattana, D. Gotz, R. Terrier, L. Bouchet, G. Ponti, M. Falanga, M. Renaud, I. Caballero, S. Soldi, J. A. Z. Heras, S. Schanne   +10 more
semanticscholar   +1 more source

Protoplanetary Disk Properties in the Orion Nebula Cluster: Initial Results from Deep, High-resolution ALMA Observations [PDF]

Astrophysical Journal, 2018
We present Atacama Large Millimeter Array 850 μm continuum observations of the Orion Nebula Cluster that provide the highest angular resolution (∼0.″1 ≈ 40 au) and deepest sensitivity (∼0.1 mJy) of the region to date. We mosaicked a field containing ∼225
J. Eisner, H. Arce, N. Ballering, J. Bally, S. Andrews, R. Boyden, J. Francesco, M. Fang, D. Johnstone, J. Kim, R. Mann, B. Matthews, I. Pascucci, L. Ricci, P. Sheehan, J. Williams   +15 more
semanticscholar   +1 more source

Decisions Under Radical Uncertainty: The Role of Volitional Liminality in Radical Innovation

Journal of Product Innovation Management, EarlyView.
ABSTRACT Academic Summary Radical innovation management can be understood as an organizational practice that enacts distant futures, which are open‐ended and unknowable. Such radical innovation endeavors are thus characterized by radical uncertainty, where possible futures are not only quantitatively but qualitatively different from the present, and ...
José Antonio Rosa, Marcelo F. de la Cruz Jara, Jelena Spanjol   +2 more
wiley   +1 more source

Comparison between the Emission Torus and the Measured Toroidal Magnetic Field for the Crab and Vela Nebulae

The Astrophysical Journal
Polarization measurements provide insight into the magnetic field, a critical aspect of the dynamics and emission properties around the compact object.
Wei Deng, Fei Xie, Kuan Liu, Mingyu Ge, Youli Tuo, Fabio La Monaca, Alessandro Di Marco, En-wei Liang   +7 more
doaj   +1 more source

Jungian categories as modes of reading: The case of Graham Greene's The Heart of the Matter and Aldous Huxley's Time Must Have a Stop

Orbis Litterarum, EarlyView.
Abstract This essay advocates renewed attention toward Jungian literary criticism, emphasizing its unique and creative perspectives on both fictional worlds and on reading. A fresh turn to Jungian criticism offers, in particular, valuable insight for texts on the peripheries of the canon.
Edsel Parke
wiley   +1 more source

On the variability of the GeV and multi-TeV gamma-ray emission from the Crab nebula [PDF]

, 2010
Recently, the AGILE γ -ray telescope has reported enhanced γ -ray emission above 100 MeV from the direction of the Crab nebula during a period of a few days. This intriguing observation has been confirmed by the Fermi Large Area Telescope (LAT).
W. Bednarek, W. Idec
semanticscholar   +1 more source

The Painterly Materiality of Clouds in Antony and Cleopatra and Hamlet

Renaissance Studies, EarlyView.
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

S II emission lines in Planetary Nebulae [PDF]

Symposium - International Astronomical Union, 1997
Emission lines arising from transitions in S II have been detected in a wide variety of astronomical sources, including planetary nebulae (Hyung, Keyes & Aller 1995). These transitions are used to derive information on emitting plasmas parameters (Te, Ne) through diagnostic line ratios, although to calculate these quantities reliably, accurate ...
F. C. McKenna, F. P. Keenan, L. H. Aller, S. Hyung, K. L. Bell, C. A. Ramsbottom   +5 more
openaire   +1 more source

SPECTROPHOTOMETRY OF THE HUYGENS REGION OF THE ORION NEBULA, THE EXTENDED ORION NEBULA, AND M 43: SCATTERED LIGHT SYSTEMATICALLY DISTORTS CONDITIONS DERIVED FROM EMISSION LINES [PDF]

, 2010
We report on medium resolution spectrophotometry of the Orion Nebula region, including for the first time the Extended Orion Nebula (EON) and the nearby M 43.
C. O’Dell, Jessica A. Harris
semanticscholar   +1 more source

Evaluating Investment in Space Programs: A Case for Theoretical Pluralism

Financial Accountability &Management, Volume 42, Issue 1, Page 19-35, February 2026.
ABSTRACT A perennial question repeatedly asked since the early Mercury (USA) and Salyut (then Soviet Union) space programs has been variations on the theme of “how can the cost of space exploration be justified?” This question—which in broad terms constitutes the research question considered in this paper—continues to be directed toward space agencies ...
Basil P. Tucker, Hank C. Alewine
wiley   +1 more source