Results 101 to 110 of about 34,202 (211)

W50 - a stellar-wind bubble in a three-phase interstellar medium? [PDF]

Monthly Notices of the Royal Astronomical Society, 1983
L'interaction entre les jets relativistes de SS 433 et la nebuleuse radio W 50 est analysee sur la base d'observations recentes. On trouve que SS 433 pourrait etre entouree d'un milieu interstellaire nuageux, du type de celui decrit par le modele a 3 phases de McKee et Ostriker. W 50 est probablement une bulle interstellaire en expansion, entrainee par
openaire   +1 more source

Use of magnetic sails for advanced exploration missions [PDF]

The magnetic sail, or magsail, is a field effect device which interacts with the ambient solar wind or interstellar medium over a considerable volume of space to generate drag and lift forces.
Andrews, Dana G., Zubrin, Robert M.
core   +1 more source

Distance to the IBEX Ribbon beyond the Heliopause

The Astrophysical Journal
Our understanding of the solar–interstellar interaction greatly improved with measurements of energetic neutral atoms (ENAs) from the outer heliosphere by NASA’s Interstellar Boundary Explorer (IBEX).
E. J. Zirnstein, M. A. Dayeh
doaj   +1 more source

WawHelioIonMP: A Semiempirical Tool for the Determination of Latitudinal Variation in the Ionization Rate of Interstellar Hydrogen and the Solar Wind

The Astrophysical Journal
The latitudinal structure of the solar wind varies during the cycle of solar activity. Analysis of this variation is important for understanding the solar activity and interpretation of observations of heliospheric energetic neutral hydrogen atoms and ...
C. Porowski, M. Bzowski
doaj   +1 more source

A Multifrequency Census of 100 Pulsars below 100 MHz with LWA: A Systematic Study of Flux Density, Spectra, Timing, Dispersion, Polarization, and Its Variation from a Decade of Observations

The Astrophysical Journal
We present a census of 100 pulsars, the largest below 100 MHz, including 94 normal pulsars and six millisecond pulsars, with the Long Wavelength Array (LWA).
P. Kumar, G. B. Taylor, K. Stovall, J. Dowell, S. M. White   +4 more
doaj   +1 more source

First Resolution of a Main-sequence G star’s Astrosphere Using Chandra

The Astrophysical Journal
We report the resolution of a halo of X-ray line emission surrounding the zero-age main-sequence G8.5V star HD 61005 by Chandra/ACIS-S. Located only ∼36 pc distant, HD 61005 is young (100 ± 50 Myr) and X-ray bright (∼300 × solar), observed with a nearly ...
C. M. Lisse, S. J. Wolk, B. Snios, R. L. McNutt Jr., J. D. Slavin, R. A. Osten, D. C. Hines, J. H. Debes, D. Koutroumpa, V. Kharchenko, J. L. Linsky, P. Brandt, M. Horanyi, H. M. Günther, E. F. Guinan, S. Redfield, P. C. Frisch, K. Dennerl, V. Kashyap, K. G. Kislyakova, Y. R. Fernandez, E. Provornikova, M. A. MacGregor, C. H. Chen, L. Paxton, K. Dialynas, L. Gu   +26 more
doaj   +1 more source

The interaction of the solar wind with the interstellar medium [PDF]

The expected characteristics of the solar wind, extrapolated from the vicinity of the earth are described. Several models are examined for the interaction of the solar wind with the interstellar plasma and magnetic field.
Axford, W. I.
core   +1 more source

Ionization Rate of Interstellar Neutral Helium from New Horizons/SWAP Observations

The Astrophysical Journal
Interstellar neutral (ISN) atoms enable studies of the physical conditions in the local interstellar medium surrounding the heliosphere. ISN helium, which is the most abundant species at 1 au, is directly observed by space missions, such as Interstellar ...
Małgorzata Antonik, Paweł Swaczyna, David J. McComas, Heather A. Elliott, Maciej Bzowski   +4 more
doaj   +1 more source

Lyα Absorption in a “Croissant-like” Heliosphere

The Astrophysical Journal
Ly α absorption profiles have been used to detect astrospheres and heliospheric absorption from the hydrogen wall and heliotail. Using magnetohydrodynamic models of the heliosphere, we can compare simulated to observed Ly α profiles to probe the neutral ...
Erick Powell, Merav Opher, Marc Z. Kornbleuth, Igor Baliukin, Adam T. Michael, Brian E. Wood, Vladislav Izmodenov, Gabor Toth, Valeriy Tenishev   +8 more
doaj   +1 more source

The Crab Nebula Revisited Using HST/WFC3

The Astrophysical Journal
It has been over 24 years since the iconic Crab Nebula has been visited by the high spatial resolution eye of the Hubble Space Telescope (HST). The expanding nebula is dynamic on these timescales, with many of the outer filaments of the nebula known to ...
William P. Blair, Ravi Sankrit, Dan Milisavljevic, Tea Temim, J. Martin Laming, Patrick Slane, Ziwei Ding, Thomas Martin   +7 more
doaj   +1 more source