Results 51 to 60 of about 17,759 (228)

Spitzer observations of Bow Shocks and Outflows in RCW 38 [PDF]

, 2011
We report Spitzer observations of five newly identified bow shocks in the massive star-forming region RCW 38. Four are visible at IRAC wavelengths, the fifth is visible only at 24 microns. Chandra X-ray emission indicates that winds from the central O5.5
B. Spitzbart, Bally, Chu, DeRose, E. Winston, Fazio, Fullerton, Joye, Kastner, Mandel, Megeath, Neufeld, Povich, Preibisch, R. Gutermuth, Reipurth, Rieke, S. J. Wolk, S. T. Megeath, Skrutskie, T. L. Bourke, Takami, Vigil, Wang, Winston, Winston, Wolk, Wolk, Wolk, Wolk   +29 more
core   +1 more source

Radial dependence of foreshock cavities: a case study [PDF]

Annales Geophysicae, 2004
We present a case study of Geotail, Interball-1, IMP-8, and Wind observations of density and magnetic field strength cavities excavated by the enhanced pressures associated with bursts of energetic ions in the foreshock.
D. G. Sibeck, K. Kudela, T. Mukai, Z. Nemecek, J. Safrankova   +4 more
doaj   +1 more source

Mass-loading and parallel magnetized shocks [PDF]

, 1991
Recent observations at comets Giacobini-Zinner and Halley suggest that simple non-reacting gas dynamics or MHD is an inappropriate description for the bow shock. The thickness of the observed (sub)shock implies that mass-loading is an important dynamical
Neubauer, F. M., Oughton, Sean, Webb, G. M., Zank, Gary P.   +3 more
core   +2 more sources

Heliocentric Distance and Solar Activity Dependence of Sustained Quasi-radial Interplanetary Magnetic Field Occurrence

The Astrophysical Journal, 2023
Planets close to their stars experience an interplanetary magnetic field (IMF) that is dominantly quasi-radial. Our solar system serves as a laboratory to study how the occurrence of quasi-radial IMF varies away from the star and under different stellar ...
Brandon L. Burkholder, Li-Jen Chen, Norberto Romanelli, Dave Sibeck, Jaye Verniero, Gina A. DiBraccio, Daniel Gershman, Menelaos Sarantos   +7 more
doaj   +1 more source

Bow Shocks from Neutron Stars: Scaling Laws and HST Observations of the Guitar Nebula [PDF]

, 2002
The interaction of high-velocity neutron stars with the interstellar medium produces bow shock nebulae, where the relativistic neutron star wind is confined by ram pressure.
Baranov V. B., Deshpande A. A., Harrison P. A., Hogbom J. A., J. M. Cordes, Migliazzo J. M., Predehl P., S. Chatterjee   +7 more
core   +2 more sources

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Observations of the spatial and temporal structure of field-aligned beam and gyrating ring distributions at the quasi-perpendicular bow shock with Cluster CIS [PDF]

Annales Geophysicae, 2001
During the early orbit phase, the Cluster spacecraft have repeatedly crossed the perpendicular Earth’s bow shock and provided the first multi-spacecraft measurements. We have analyzed data from the Cluster Ion Spectrometry experiment (CIS), which
E. Möbius, H. Kucharek, C. Mouikis, E. Georgescu, L. M. Kistler, M. A. Popecki, M. Scholer, J. M. Bosqued, H. Rème, C. W. Carlson, B. Klecker, A. Korth, G. K. Parks, J. C. Sauvaud, H. Balsiger, M.-B. Bavassano-Cattaneo, I. Dandouras, A. M. DiLellis, L. Eliasson, V. Formisano, T. Horbury, W. Lennartsson, R. Lundin, M. McCarthy, J. P. McFadden, G. Paschmann   +25 more
doaj   +1 more source

Large-scale solar wind flow around Saturn's nonaxisymmetric magnetosphere [PDF]

, 2017
The interaction between the solar wind and a magnetosphere is fundamental to the dynamics of a planetary system. Here, we address fundamental questions on the large-scale magnetosheath flow around Saturn using a 3D magnetohydrodynamic (MHD) simulation ...
Achilleos, N., Gurnett, D. A., Jia, X., Kurth, W. S., Sergis, N., Sulaiman, A. H.   +5 more
core   +3 more sources

Future Range Shifts and Diversity Patterns of Antarctic Lecideoid Lichens Under Climate Change Scenarios

Global Change Biology Communications, EarlyView.
Modeling of current and future spatial distribution of Antarctic lecideoid lichens shows that warming will strongly increase the potential habitat. Under three climate‐change scenarios, most fungal and algal partners are projected to expand inland. Overall, climate change drives widespread range shifts and promotes colonization of interior Antarctica ...
Anna Götz, Mikhail Andreev, Robert R. Junker, Lea Maislinger, Leopoldo G. Sancho, Wolfgang Trutschnig, Ulrike Ruprecht   +6 more
wiley   +1 more source

Multiple spacecraft observations of interplanetary shocks: Characteristics of the upstream ULF turbulence [PDF]

, 1982
All interplanetary shocks observed by ISEE-3 and either ISEE-1 or ISEE-2 or both in 1978 and 1979 are examined for evidence of upstream waves. In order to characterize the properties of these shocks it is necessary to determine accurate shock normals. An
Bame, S. J., Gosling, J. T., Russell, C. T., Smith, E. J., Tsurutani, B. T.   +4 more
core   +2 more sources