Results 1 to 10 of about 6,384 (241)

Modeling non-thermal emission from stellar bow shocks [PDF]

Astronomy & Astrophysics, 2016
Runaway O- and early B-type stars passing throughout the interstellar medium at supersonic velocities and characterized by strong stellar winds may produce bow shocks that can serve as particle acceleration sites.
Bonito, R., de Castro, E., López-Santiago, J., Miceli, M., Pereira, V.   +4 more
core   +16 more sources

Non-thermal emission from stellar bow shocks [PDF]

The Astrophysical Journal, 2018
Since the detection of non-thermal radio emission from the bow shock of the massive runaway star BD +43$^{\circ}$3654 simple models have predicted high-energy emission, at X and gamma-rays, from these Galactic sources.
del Valle, Maria Victoria, Pohl, Martin
core   +4 more sources

E-BOSS: An Extensive stellar BOw Shock Survey. II. Catalogue second release [PDF]

Astronomy & Astrophysics, 2015
Context. Stellar bow shocks have been studied not only observationally, but also theoretically since the late 1980s. Only a few catalogues of them exist.
Benaglia, P., Isequilla, N. L., Peri, C. S.   +2 more
core   +5 more sources

E-BOSS: an Extensive stellar BOw Shock Survey. I: Methods and First Catalogue [PDF]

Astronomy & Astrophysics, 2011
Context: Bow shocks are produced by many astrophysical objects where shock waves are present. Stellar bow shocks, generated by runaway stars, have been previously detected in small numbers and well-studied.
Arnal, Benaglia, Blauuw, Bouy, Brown, C. S. Peri, Cappa, Comerón, Comerón, Condon, D. P. Brookes, Dennison, Dgani, Dgani, Gaustad, Gies, Gvaramadze, Gvaramadze, Gvaramadze, Gáspár, Hanson, Hoogerwerf, Howarth, I. R. Stevens, Kaper, Kharchenko, Kobulnicky, Martins, Mason, Maíz-Apellániz, Megier, Moffat, Moffat, N. L. Isequilla, Noriega-Crespo, P. Benaglia, Perryman, Poveda, Povich, Prinja, Schilbach, Tetzlaff, Thorburn, Van Buren, Van Buren, Van Leeuwen, Vink, Wilkin, Wilkin   +48 more
core   +4 more sources

Energetics of nearby stellar bow shocks [PDF]

, 2012
The latest survey of stellar bow shocks (Peri et al. 2012) lists 28 candidates detected at IR wavelengths, associated with massive, early-type stars up to 3 kpc, along with the geometrical parameters of the structures found.
Benaglia, Paula
core   +4 more sources

Planetary Evaporation and the Dynamics of Planet Wind/Stellar Wind Bow Shocks [PDF]

Proceedings of the International Astronomical Union, 2015
We present initial results of a new campaign of simulations focusing on the interaction of planetary winds with stellar environments using Adaptive Mesh Refinement methods.
Blackman, E. G., Carroll-Nellenback, J., Dobbs-Dixon, I., Frank, A., Kasting, J. F., Liu, B., Quillen, A. C.   +6 more
core   +2 more sources

The Milky Way Project MOBStIRS: Parameterizing Infrared Stellar-wind Bow Shock Morphologies with Citizen Science

The Astronomical Journal
Mass-loss influences stellar evolution, especially for massive stars with strong winds. Stellar wind bow shock nebulae driven by Galactic OB stars can be used to measure mass-loss rates ( $\dot{M}$ ).
Angelica S. Whisnant, Matthew S. Povich, Nikhil Patten, Henry A. Kobulnicky   +3 more
doaj   +3 more sources

An In Situ Study of Turbulence near Stellar Bow Shocks [PDF]

The Astrophysical Journal, 2021
Abstract Stellar bow shocks are observed in a variety of interstellar environments and shaped by the conditions of gas in the interstellar medium (ISM). In situ measurements of turbulent density fluctuations near stellar bow shocks are only achievable with a few observational probes, including Hα-emitting bow shocks and the Voyager ...
Stella Koch Ocker, James M. Cordes, Shami Chatterjee, Timothy Dolch   +3 more
openaire   +2 more sources

High-sensitivity radio study of the non-thermal stellar bow shock EB27 [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT We present a deep radio-polarimetric observation of the stellar bow shock EB27 associated with the massive star BD+43○3654. This is the only stellar bow shock confirmed to have non-thermal radio emission. We used the Jansky Very Large Array in S band (2–4 GHz) to test whether this synchrotron emission is polarized.
Paula Benaglia, Santiago del Palacio, Christopher Hales, Marcelo E Colazo   +3 more
openaire   +3 more sources

Interstellar Bow Shocks around Fast Stars Passing through the Local Interstellar Medium

The Astrophysical Journal, 2023
Bow shocks are produced in the local interstellar medium by the passage of fast stars from the Galactic thin-disk and thick-disk populations with velocities V _* = 40–80 km s ^−1 .
J. Michael Shull, S. R. Kulkarni
doaj   +1 more source