Results 81 to 90 of about 15,824 (251)

Ion Escape From Degenerate Induced Magnetospheres: The Case of Mars

Geophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract When the cone angle of the interplanetary magnetic field (IMF) becomes small, induced magnetospheres of unmagnetized planets degenerate. Using hybrid simulations, we study ionospheric ion escape in a 4° cone angle case and compare it with the nominal 55° cone angle (Parker spiral) case. The total escape rate is 1.7×1025 $1.7\times 1{0}^{25}$ s−
Qi Zhang, Stas Barabash, Mats Holmström, Xiao‐dong Wang, Yoshifumi Futaana, Christopher M. Fowler, Robin Ramstad, Hans Nilsson   +7 more
wiley   +1 more source

Vertex reconstruction algorithms in the PHOBOS experiment at RHIC

, 2006
The PHOBOS experiment at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory is studying interactions of heavy nuclei at the largest energies available in the laboratory.
E. García, M. P. Decowski, Phobos Collaboration, T. Gburek, V. Chetluru   +4 more
core   +2 more sources

Deriving IMF Properties From Mars Express Heavy Pickup Ion Measurements

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract We present Mars Express (MEX) observations of heavy pickup ions (HPUI) at Mars and a new method to derive interplanetary magnetic field (IMF) properties. The MEX HPUI measurements were organized using the upstream IMF directions measured by the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission.
Yaxue Dong, Robin Ramstad, Matthew W. Davis, Mats Holmström, David A. Brain, Jared R. Espley, Shannon M. Curry   +6 more
wiley   +1 more source

The Sands of Phobos: The Martian moon's eccentric orbit refreshes its surface

, 2018
The surface of the Martian moon Phobos exhibits two distinct geologic units, known as the red and blue units. The provenance of these regions is uncertain yet crucial to understanding the origin of the Martian moon and its interaction with the space ...
Ballouz, Ronald-Louis, Baresi, Nicola, Crites, Sarah T., Fujimoto, Masaki, Kawakatsu, Yasuhiro   +4 more
core   +1 more source

Field‐Aligned Proton Beams Upstream of the Martian Bow Shock: First Observations

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract We report fast sunward‐propagating energetic proton field‐aligned beams (FABs) observed about one Mars radius upstream of the Martian bow shock, recorded by the Solar Wind Ion Analyzer instrument on the MAVEN spacecraft. The velocity distributions show that all the beams have a bulk parallel speed vB=(1.35±0.21)VS ${v}_{B}=(1.35\pm 0.21){V}_{S}
K. Meziane, C. X. Mazelle, C. Simon‐Wedlund, J. S. Halekas, A. M. Hamza, C. Bertucci, D. L. Mitchell, J. R. Espley   +7 more
wiley   +1 more source

Physically Based Real‐Time Rendering of Eclipses

Computer Graphics Forum, Volume 44, Issue 2, May 2025.
Abstract We present a novel approach for simulating eclipses, incorporating effects of light scattering and refraction in the occluder's atmosphere. Our approach not only simulates the eclipse shadow, but also allows for watching the Sun being eclipsed by the occluder.
S. Schneegans, J. Gilg, V. Ahlers, G. Zachmann, A. Gerndt   +4 more
wiley   +1 more source

System Size and Energy Dependence of Elliptic Flow

, 2006
The elliptic flow v2 is presented for the Cu+Cu collisions at sqrt{s_NN} = 62.4 and 200 GeV, as a function of pseudorapidity. Comparison to results for the Au+Au collisions at the same energies shows a reduction of about 20% in the flow observed for a ...
Mignerey, Alice C.
core   +1 more source

Observational Characteristics of Electron Distributions in the Martian Induced Magnetotail

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract Mars's magnetotail represents a unique case within the solar system, embodying both intrinsic and induced magnetic fields. Yet, the electron dynamics within this region have remained largely unexplored. Utilizing nine years of electron and magnetic field data from the Mars Atmosphere and Volatile EvolutioN mission (MAVEN), we conducted a ...
Chi Zhang, Chuanfei Dong, Hongyang Zhou, Jan Deca, Shaosui Xu, Yuki Harada, Shannon M. Curry, David L. Mitchell, Zhi‐Yang Liu, Junfeng Qin, Christian Mazelle   +10 more
wiley   +1 more source

Longitudinal scaling of observables in heavy-ion collision models

, 2011
Longitudinal scaling of pseudorapidity distribution of charged particles ($dN_{\mathrm {ch}}/d\eta$) is observed when presented as a function of pseudorapidity ($\eta$) shifted by the beam rapidity ($\eta$ - $y_{\mathrm {beam}}$) for a wide range of ...
Jena, Chitrasen, Kumar, Lokesh, Mohanty, Bedangadas, Nasim, Md., Netrakanti, Pawan Kumar   +4 more
core   +1 more source

Lessons from PHOBOS [PDF]

Nuclear Physics A, 2009
In June 2005 the PHOBOS Collaboration completed data taking at RHIC. In five years of operation PHOBOS recorded information for Au+Au at $\sqrt{s_{NN}}$ = 19.6, 62.4, 130, and 200 GeV, Cu+Cu at 22.4, 62.4 and 200 GeV, d+Au at 201 GeV, and p+p at 200 and 410 GeV, altogether more than one billion collisions.
openaire   +4 more sources