Results 211 to 220 of about 412,900 (233)

Radio detections of IR-selected runaway stellar bow shocks [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Massive stars moving at supersonic peculiar velocities through the interstellar medium (ISM) can create bow shocks, arc-like structures at the interface between the stellar wind and the ISM. Many such bow shocks have been detected and catalogued at IR wavelengths, but detections in other wavebands remain rare.
Jakob van den Eijnden, S Mohamed
exaly   +4 more sources

Modeling nonthermal emission from stellar bow shocks [PDF]

open access: yesAstronomy and 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. Previous theoretical models predict the production of high energy photons by non-thermal radiative processes, but their efficiency is still ...
Elisa De Castro   +2 more
exaly   +9 more sources

Nonthermal Emission from Stellar Bow Shocks [PDF]

open access: yesAstrophysical Journal, 2018
Abstract Since the detection of nonthermal radio emission from the bow shock of the massive runaway star BD +43°3654, simple models have predicted high-energy emission, at X-rays and gamma-rays, from these Galactic sources. Observational searches for this emission so far give no conclusive evidence but a few candidates at gamma-rays.
Martin Pohl
exaly   +7 more sources

Probing the non-thermal physics of stellar bow shocks using radio observations [PDF]

open access: yesAstronomy and Astrophysics, 2023
Context. Massive runaway stars produce bow shocks in the interstellar medium. Recent observations revealed radio emission from a few of these objects, but the origin of this radiation remains poorly understood. Aims. We aim to interpret this radio emission and assess under which conditions it could be either thermal (free–free) or non-thermal ...
Santiago Del Palacio   +2 more
exaly   +8 more sources

E-BOSS: An Extensive stellar BOw Shock Survey [PDF]

open access: yesAstronomy and Astrophysics, 2015
20 pages, 11 figures, and 8 tables.
Cintia Peri, Paula Benaglia
exaly   +6 more sources

E-BOSS: an Extensive stellar BOw Shock Survey [PDF]

open access: yesAstronomy and Astrophysics, 2012
A&A accepted (25-NOV-2011), 15 pages, 4 tables, 11 ...
Ian R. Stevens   +2 more
exaly   +5 more sources

Polarization simulations of stellar wind bow-shock nebulae – I. The case of electron scattering [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
20 pages, 13 figures, 1 table; Accepted for publication in ...
Manisha Shrestha   +2 more
exaly   +5 more sources

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

open access: yesAstrophysical 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 ...
Timothy Dolch   +2 more
exaly   +3 more sources

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