Results 61 to 70 of about 37,813 (241)

Footprints of the Newly-Discovered Vela Supernova in Antarctic Ice Cores?

, 1999
The recently-discovered, nearby young supernova remnant in the southeast corner of the older Vela supernova remnant may have been seen in measurements of nitrate abundances in Antarctic ice cores.
Aschenbach, Ashworth, Bignami, C.P. Burgess, Castagnoli, Clark, Crutzen, Ellis, Halpern, Herron, Iyudin, K. Zuber, Mayewski, Norman, Parker, Risbo, Rood, Ruderman, Stager, Whitten, Wietfeldt   +20 more
core   +2 more sources

Radial Velocity Monitoring and Analysis of Gaia Astrometry of Selected Intermediate Mass Stars to Constrain Their Multiplicity Status

Astronomische Nachrichten, Volume 347, Issue 1, January 2026.
ABSTRACT We present new radial velocity measurements of 13 selected intermediate mass stars (2–6 M⊙). The measurements were performed between 29 April and 6 September 2024 at the University Observatory Jena using the échelle spectrograph FLECHAS. The radial velocity of eight stars was found to be constant during our spectroscopic monitoring, namely: 17
J. Bätz, M. Mugrauer, K.‐U. Michel, J. Reichert, A. Tschirschky, L. Pietsch, F. Edelmann, R. Neuhäuser   +7 more
wiley   +1 more source

Building a Professional Imaginary of Writing Pedagogy: Working With Teacher Knowledge and Beliefs About Writing

Reading Research Quarterly, Volume 61, Issue 1, January/February/March 2026.
In this paper, The Professional Imaginary of Writing Pedagogy is presented as an ideal. This imaginary brings teacher knowledge about the social imaginary for literacy education into relation with teacher professional knowledge and beliefs about writing, to promote pedagogies and practices for writing that are inclusive, expansive, responsive and ...
Clare Dowdall
wiley   +1 more source

The Black Hole Candidate Swift J1728.9–3613 and the Supernova Remnant G351.9–0.9

The Astrophysical Journal, 2023
A number of neutron stars have been observed within the remnants of the core-collapse supernova explosions that created them. In contrast, black holes are not yet clearly associated with supernova remnants (SNRs).
Mayura Balakrishnan, Paul A. Draghis, Jon M. Miller, Joe Bright, Robert Fender, Mason Ng, Edward Cackett, Andrew Fabian, Kip Kuntz, James C. A. Miller-Jones, Daniel Proga, Paul S. Ray, John Raymond, Mark Reynolds, Abderahmen Zoghbi   +14 more
doaj   +1 more source

Unveiling the nature of RX J0002+6246 with XMM-Newton

, 2007
The X-ray source RX J0002+6246 was discovered close to the supernova remnant CTB1 in a ROSAT observation performed in 1992. The source phenomenology (soft spectrum, apparent lack of counterparts, possible pulsations at 242 ms, hints for surrounding ...
A. De Luca, A. Paizis, A. Tiengo, Buccheri R., Hog E., Krautter J., Mewe R., Mewe R., P. A. Caraveo, P. Esposito, Predehl P., S. Mereghetti, Tananbaum H., White N. E., Zombeck M.   +14 more
core   +1 more source

Enhanced Radiation Exposure of Airline Crew and Passengers During the May 2024 Geomagnetic Storm

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Enhanced radiation at aviation altitudes is a concern for flight crew and passengers. During space weather events, solar flares and coronal mass ejection (CME) driven shocks are sources of energetic particles that can reach Earth's near‐space environment and interact with its magnetic field and atmosphere.
Homayon Aryan, Jacob Bortnik, W. Kent Tobiska, Piyush Mehta, Benjamin Hogan, Rashmi Siddalingappa, Harshitha Challa   +6 more
wiley   +1 more source

Exploring the Diffuse X-ray Emission of Supernova Remnant Kesteven 69 with XMM-Newton [PDF]

Journal of Astronomy and Space Sciences, 2013
We have investigated the X-ray emission from the shock-heated plasma of the Galactic supernova remnant Kesteven 69 with XMM-Newton. Assuming the plasma is at collisional ionization equilibrium, a plasma temperature and a column absorption are found to ...
Kyoung-Ae Seo, Chung Yue Hui
doaj   +1 more source

Radio Spectral Index and Expansion of 3C58

, 2001
We present new observations of the plerionic supernova remnant 3C58 with the VLA at 74 and 327 MHz. In addition, we re-reduced earlier observations at 1.4 and 4.9 GHz taken in 1973 and 1984. Comparing these various images, we find that: 1.
Aller H. D., Baars J. W. M., Green D. A., Green D. A., Green D. A., K. W. Weiler, M. F. Bietenholz, N. E. Kassim, Roberts D. A., Salvati M., Stephenson F. R., Tan S. M., Weiler K. W., Wilson A. S., Woltjer L.   +14 more
core   +1 more source

Hamas's October 7 Attack: Analysis of an “Antagonistic” Crisis

Public Administration Review, Volume 86, Issue 1, Page 87-96, January/February 2026.
ABSTRACT The aim of the article is to interpret the Hamas attack of October 7, 2023 in light of crisis management theories, seeking to draw from this event some general lessons about the nature of crises, their determinants, and how they are managed. More specifically, the article addresses three questions: (1) Why did Israel underestimate the warning ...
Federico Toth
wiley   +1 more source

SEARCH FOR A COMPACT SCINTILLATING COMPONENT IN SNR 3С58 AT DECAMETER WAVELENGTHS

Radio Physics and Radio Astronomy, 2014
The upper limit for the flux of a compact source of continuum radio emission in SNR 3C58, (2.7 ± 0.9) Jy, was obtained by the highest sensitive observations of interplanetary scintillations at decameter wavelengths.
N. N. Kalinichenko
doaj   +1 more source