Results 101 to 110 of about 18,734,225 (295)

X-ray evolution of pulsar wind nebulae [PDF]

, 2010
During the search for counterparts of very high energy gamma-ray sources, we serendipitously discovered large, extended, low surface brightness emission from pulsar wind nebulae (PWNe) around pulsars with the ages up to ~100 kyr, a discovery made ...
Koji Mori, Mori, K., Tadayasu Dotani, Astrophysics, Aya Bamba, Ryo Yamazaki, Jacco Vink, Takayasu Anada, Dotani, T., Vink, J., Ebisawa, K., Bamba, A., Yamazaki, R., Anada, T., Ken Ebisawa, Sub High energy Astrophysics begr 1/1/15   +15 more
core   +1 more source

Revisiting olivine‐phyric shergottites: Pyroxene crystallization pressure and the role of undercooling

Meteoritics &Planetary Science, EarlyView.
Abstract Shergottites are the most abundant meteorites from Mars and a major source of information on magma reservoirs, transport, and eruption, particularly in the late Hesperian northern hemisphere. Conflicting interpretations have arisen on the crystallization conditions of pyroxene in olivine‐phyric shergottites.
Roger H. Hewins, Brigitte Zanda, Arnaud Duverger   +2 more
wiley   +1 more source

High-Energy Astrophysics: An Overview [PDF]

, 2007
High-energy astrophysics is the study of objects and phenomena in space with energy densities much greater than that found in normal stars and galaxies. These include black holes, neutron stars, cosmic rays, hypernovae and gamma-ray bursts. A history and
Fishman, Gerald J.
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Estimating past fluid pH and evaporative conditions in Gale crater using terrestrial analog samples from Death Valley, CA

Meteoritics &Planetary Science, EarlyView.
Abstract Boron and lithium have been observed in Ca‐sulfate veins of Gale crater. These elements are highly water mobile and can inform us regarding the aqueous processes that may have taken place in Gale crater. However, the analysis of B in Gale crater is limited to low‐Fe rocks and minerals due to spectral interference of Fe with B in ChemCam data ...
D. Das, P. J. Gasda, K. Berlo, R. J. Leveille, M. A. Nellessen, L. Crossey, E. Peterson, R. Beal, A. L. Reyes‐Newell, S. M. Clegg, N. L. Lanza, O. Gasnault   +11 more
wiley   +1 more source

Entering the Era of Directly Supporting Society With Observation‐Based Ocean Acidification Data

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Ocean acidification is a growing concern for many nations around the world. However, our capacity to monitor changes in carbonate chemistry with sufficient spatial and temporal resolution, has until now, been limited, which has impeded effective action and decision‐making at international, national, and regional levels.
Helen S. Findlay, Lucile Gaultier, Luke Gregor, Nicolas Gruber, Peter Land, Daniel Ford, Roberto Sabia, Aleluia Taise‐Uili, Stephen Widdicombe, Jan Newton, Kaitlyn Lowder, Jamie Shutler   +11 more
wiley   +1 more source

High-resolution X-ray spectroscopy of the low and high states of the Seyfert 1 galaxy NGC 4051 with Chandra LETGS [PDF]

, 2009
Context. With the new generation of high-resolution X-ray spectrometers the understanding of warm absorbers in active galactic nuclei has improved considerably.
Astrophysics, Fenovcik, M., M. Feňovčík, F. Verbunt, K. C. Steenbrugge, Steenbrugge, K.C., Costantini, E., Verbunt, F.W.M., Kaastra, J.S., Dep Natuurkunde, Sub High energy Astrophysics begr 1/1/15, J. S. Kaastra, E. Costantini   +12 more
core   +1 more source

A Counterintuitive Path to Carbon Storage: Leveraging EOR to Future‐Proof US Oilfields for Geologic Carbon Sequestration

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Geologic carbon sequestration (GCS) is widely seen as essential to achieving net‐zero emissions, yet its large‐scale deployment remains impractical mainly due to economic and political reasons. In this article, we explore the idea that enhanced oil recovery (EOR) may serve as a pragmatic steppingstone for getting GCS‐ready infrastructure in ...
Madeline Mascari, Priyank Jaiswal, Rachel Lim   +2 more
wiley   +1 more source

Quantum regression theorem in the Unruh–DeWitt battery

European Physical Journal C: Particles and Fields
In this paper, we employ the quantum regression theorem, a powerful tool in the study of open quantum systems, to analytically study the correlation functions of an Unruh–DeWitt detector, which is an uniformly accelerated two-level quantum system ...
Manjari Dutta, Arnab Mukherjee, Sunandan Gangopadhyay   +2 more
doaj   +1 more source

New Timing Results of MSPs from NICER Observations

Universe
Millisecond pulsars (MSPs) are known for their long-term stability. Using six years of observations from the Neutron Star Interior Composition Explorer (NICER), we have conducted an in-depth analysis of the X-ray timing results for six MSPs: PSRs B1937 ...
Shijie Zheng, Dawei Han, Heng Xu, Kejia Lee, Jianping Yuan, Haoxi Wang, Mingyu Ge, Liang Zhang, Yongye Li, Yitao Yin, Xiang Ma, Yong Chen, Shuangnan Zhang   +12 more
doaj   +1 more source

High energy astrophysics

, 2011
The third edition of this well-established textbook is ideal for advanced undergraduate and beginning graduate courses in high energy ...
Longair, Malcolm S
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