The Heliosphere’s Interstellar Interaction: No Bow Shock

@article{Mccomas2012TheHI,
  title={The Heliosphere’s Interstellar Interaction: No Bow Shock},
  author={D. J. Mccomas and D. B. Alexashov and Maciej Bzowski and Hans Jorg Fahr and Jacob Heerikhuisen and Vladislav Izmodenov and M. A. Lee and Eberhard M{\"o}bius and Nikolai V. Pogorelov and Nathan A. Schwadron and Gary P. Zank},
  journal={Science},
  year={2012},
  volume={336},
  pages={1291 - 1293}
}
No Shock Ahead of the Sun The boundary of the heliosphere is the region where the solar wind interacts with interstellar space, and it marks the edge of our solar system. Based on observations from NASA's Interstellar Boundary Explorer, McComas et al. (p. 1291, published online 10 May; see the Perspective by Redfield) determined values for local interstellar parameters—such as speed, direction, and temperature—and show that these and other recent constraints are not consistent with a bow shock… Expand

Topics from this paper

A slow bow shock ahead of the heliosphere
[1] Current estimates of plasma parameters in the local interstellar medium indicate that the speed of the interstellar wind, i.e., the relative speed of the local interstellar cloud with respect toExpand
Gathering Interstellar Gas
TLDR
A new view of the heliosphere is presented based on recent measurements by instruments onboard the Interstellar Boundary Explorer (IBEX) spacecraft and of those interstellar atoms that have passed through theheliosphere and traveled into the inner solar system are presented. Expand
THE EFFECT OF NEW INTERSTELLAR MEDIUM PARAMETERS ON THE HELIOSPHERE AND ENERGETIC NEUTRAL ATOMS FROM THE INTERSTELLAR BOUNDARY
We present new results from three-dimensional simulations of the solar wind interaction with the local interstellar medium (LISM) using recent observations by NASA's Interstellar Boundary EXplorerExpand
Observations of the interplanetary hydrogen during solar cycles 23 and 24. What can we deduce about the local interstellar medium
Observations of interstellar helium atoms by the Interstellar Boundary Explorer (IBEX) spacecraft in 2009 reported a local interstellar medium (LISM) velocity vector different from the results of theExpand
The Heliotail Revealed by the Interstellar Boundary Explorer
Recent combined observations from the first three years of Interstellar Boundary Explorer (IBEX) data allow us to examine the heliosphere's downwind region—the heliotail—for the first time. InExpand
Decades-Long Changes of the Interstellar Wind Through Our Solar System
TLDR
Analysis of data collected by 10 different spacecraft indicates that the solar system’s local environment may be changing, and the trend for the interstellar flow ecliptic longitude to increase linearly with time is statistically significant. Expand
Direction of interstellar hydrogen flow in the heliosphere: theoretical modelling and comparison with SOHO/SWAN data
The analysis of SOlar and Heliospheric Observatory (SOHO) Solar Wind ANisotropies (SWAN) data for backscattered solar Lyman α radiation performed by Lallement et al. showed for the first time thatExpand
The Local Interstellar Spectrum beyond the Heliopause: What can be Learned from Voyager in the Inner Heliosheath?
The local interstellar spectrum (LIS) is one of the most important but unknown parameters used in all modeling efforts to describe the modulation of Galactic cosmic rays on their way from the galaxyExpand
Plasma Physics of the Very Local Interstellar Medium
Models of the large-scale heliosphere show that the very local interstellar medium (VLISM), bounded by the heliopause and either a bow wave or bow shock, experiences significant heating by theExpand
Voyager observations of the interaction of the heliosphere with the interstellar medium
TLDR
A brief review and update on the Voyager observations of the interaction of the heliosphere with the interstellar medium and the plasma flow in the Voyagers 1 (V1) and 2 (V2) directions are very different. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 40 REFERENCES
Global Observations of the Interstellar Interaction from the Interstellar Boundary Explorer (IBEX)
TLDR
Observations by the Interstellar Boundary Explorer have revealed surprising features in the interaction between the heliosphere and the interstellar medium, including a bright ribbon of ENA emission, unpredicted by prior models or theories. Expand
Direct Observations of Interstellar H, He, and O by the Interstellar Boundary Explorer
TLDR
The model they have developed suggests that the interstellar magnetic field plays a stronger role than previously thought, and detection of H, He, and O flowing into the heliosphere from the interstellar medium tells us about the authors' local interstellar environment. Expand
Comparison of Interstellar Boundary Explorer Observations with 3D Global Heliospheric Models
TLDR
The model of the heliosphere indicates that the local interstellar medium (LISM) magnetic field (BLISM) is transverse to the line of sight (LOS) along the ribbon, suggesting that the ribbon may carry its imprint. Expand
Direction of the interstellar H atom inflow in the heliosphere : Role of the interstellar magnetic field
Recently Lallement et al. (2005, Science, 307, 1447) reported that the direction of the flow of interstellar neutral hydrogen in the heliosphere is deflected by ∼4° from the direction of the pristineExpand
Interaction of the solar wind with the local interstellar medium: A multifluid approach
A distinct fluid description for neutral hydrogen originating from either the interstellar medium, the heliosheath, or the solar wind has been developed to describe the detailed interaction of theExpand
Probing Heliospheric Asymmetries with an MHD-Kinetic model
New solar wind data from the Voyager 1 and Voyager 2 spacecraft, together with the SOHO SWAN measurements of the direction in which neutral hydrogen enters into the inner heliosheath and neutralExpand
AN ANALYTICAL MODEL OF INTERSTELLAR GAS IN THE HELIOSPHERE TAILORED TO INTERSTELLAR BOUNDARY EXPLORER OBSERVATIONS
The stationary distribution of interstellar neutral gas in the heliosphere subject to solar gravity, solar radiation pressure, photoionization, and charge exchange is investigated analyticallyExpand
The Galactic Environment of the Sun: Interstellar Material Inside and Outside of the Heliosphere
Interstellar material (ISMa) is observed both inside and outside of the heliosphere. Relating these diverse sets of ISMa data provides a richer understanding of both the interstellar medium and theExpand
IBEX—Interstellar Boundary Explorer
The Interstellar Boundary Explorer (IBEX) is a small explorer mission that launched on 19 October 2008 with the sole, focused science objective to discover the global interaction between the solarExpand
Interstellar Gas Flow Parameters Derived from Interstellar Boundary Explorer-Lo Observations in 2009 and 2010: Analytical Analysis
Neutral atom imaging of the interstellar gas flow in the inner heliosphere provides the most detailed information on physical conditions of the surrounding interstellar medium (ISM) and itsExpand
...
1
2
3
4
...