Results 101 to 110 of about 24,858 (303)

Proceedings of the NASA Laboratory Astrophysics Workshop

, 2006
This report is a collection of papers presented at the 2006 NASA Workshop on Laboratory Astrophysics held in the University of Nevada, Las Vegas (UNLV) from February 14 to 16, 2006.
Weck, Phillippe F., Salama, Farid, Kwong, Victor H. S.   +2 more
core  

"DIANA" - A New, Deep-Underground Accelerator Facility for Astrophysics Experiments [PDF]

, 2009
The DIANA project (Dakota Ion Accelerators for Nuclear Astrophysics) is a collaboration between the University of Notre Dame, University of North Carolina, Western Michigan University, and Lawrence Berkeley National Laboratory to build a nuclear ...
Wiescher, M., Vetter, P., Leitner, M., Lemut, A., Leitner, D.   +4 more
core  

Visible, near‐, and thermal infrared spectra of asteroid Bennu samples: Relationship to and implications for remote sensing of carbonaceous asteroids

Meteoritics &Planetary Science, EarlyView.
Abstract Remote spectroscopy is used to characterize the mineralogy and infer the history of planetary bodies. Carbonaceous asteroids, such as B‐type (101955) Bennu, represent the earliest stages of planet formation. B types have a blue (negative) spectral slope and comprise <5% of asteroids.
V. E. Hamilton, E. A. Cloutis, R. E. Milliken, P. Haenecour, D. R. Golish, K. J. Domanik, T. J. McCoy, L. P. Keller, A. A. Simon, H. H. Kaplan, C. A. Goodrich, S. A. Sandford, D. Applin, T. Hiroi, D. H. Hill, N. G. Lunning, F. M. McCubbin, S. A. Eckley, C. J. Snead, E. H. Blumenfeld, J. E. Aebersold, C. Schultz, N. Bowles, K. A. Shirley, S. S. Russell, J. J. Barnes, T. J. Zega, D. N. DellaGiustina, A. J. Ryan, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr., D. S. Lauretta   +32 more
wiley   +1 more source

Theoretical Study of Electron Capture, Excitation, and Ionization Processes in H+−H(2l) Collisions

The Astrophysical Journal Supplement Series
The processes of single-electron charge exchange, excitation, and ionization during proton impact on H(2 l ) are investigated. We employ two different theoretical methods that are suitable for different collision energy regions: the full quantum ...
Y. Wang, K. Wang, L. Liu, Y. Wu, F. Wang, J. G. Wang   +5 more
doaj   +1 more source

Strong Field QED, Astrophysics, and Laboratory Astrophysics

Astrophysical compact objects, such as magnetars, neutron star mergers, etc, have strong electromagnetic fields beyond the Schwinger field ($B_c = 4.4 \times 10^{13}\, {\rm G}$). In strong electric fields, electron-positron pairs are produced from the vacuum, gamma rays create electron-positron pairs in strong magnetic fields, and propagating photons ...
openaire   +2 more sources

Laboratory Astrophysics: Enabling Scientific Discovery and Understanding

, 2006
NASA's Science Strategic Roadmap for Universe Exploration lays out a series of science objectives on a grand scale and discusses the various missions, over a wide range of wavelengths, which will enable discovery.
Kirby, K.
core  

Commission B5 Laboratory Astrophysics - Activity report 2015/2016

, 2017
Commission B5 Laboratory Astrophysics - Activity report 2015 ...
Salama, Farid
core   +1 more source

Advanced aqueous alteration in primitive meteorites: Micro‐ to nanoscale studies of CR1 iron sulfides

Meteoritics &Planetary Science, EarlyView.
Abstract This study documents micro‐ to nanoscale observations of primary nebular and secondary parent body iron sulfides in the CR1 GRO 95577. Despite the extensive alteration of the bulk sample, some primary sulfides managed to avoid alteration, having originally formed in the solar nebula during chondrule formation by either fission‐sulfidization or
S. A. Singerling
wiley   +1 more source

Measurement and Modeling of Electron Temperature in Laboratory Photoionized Plasmas Relevant to Astrophysics

The Astrophysical Journal
The electron temperature of photoionized plasmas characterizes the thermalization of photoelectrons, impacts the charge-state distribution, emissivity, and opacity through atomic recombination processes, and is needed to perform detailed comparisons with
J. J. Rowland, R. C. Mancini, G. S. Jaar, D. C. Mayes, H. Scott, I. E. Golovkin, M. Chatzikos, G. Ferland, G. P. Loisel, J. E. Bailey   +9 more
doaj   +1 more source

Evolution of slow electrostatic shock into a plasma shock mediated by electrostatic turbulence

New Journal of Physics, 2014
The collision of two plasma clouds at a speed that exceeds the ion acoustic speed can result in the formation of shocks. This phenomenon is observed not only in astrophysical scenarios, such as the propagation of supernova remnant (SNR) blast shells into
M E Dieckmann, G Sarri, D Doria, H Ahmed, M Borghesi   +4 more
doaj   +1 more source