Results 221 to 230 of about 412,900 (233)
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.
Santiago Del Palacio, Paula Benaglia
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The visibility of the Mach disk and the bow shock of a stellar jet
Astrophysical Journal, 1989 This paper uses a simple model to determine which of the two principal shocks at the end of a stellar jet, the bow shock or the Mach disk, emits more light at H-beta. It is found that the two shocks should have comparable surface brightness provided the jet and ambient medium densities do not differ by more than one to two orders of magnitude, and both
Patrick Hartigan
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Searching for Faint X-Ray Emission from Galactic Stellar Wind Bow Shocks
Astronomical Journal, 2019 Abstract We present a stacking analysis of 2.61 Ms of archival Chandra observations of stellar wind bow shocks. We place an upper limit on the X-ray luminosity of infrared-detected bow shocks of <2 × 1029 erg s−1, a more stringent constraint than has been found in previous archival studies and dedicated observing campaigns of nearby ...
Matthew S Povich, Breanna Arlene Binder
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Exact Analytic Solutions for Stellar Wind Bow Shocks
Astrophysical Journal, 1996Stellar wind bow shocks have been seen in association with a wide variety of stellar objects, from pulsars to young stars. A new solution method is presented for bow shocks in the thin-shell limit, stressing the importance of the conserved momentum within the shell.
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Astrophysical Journal, Supplement Series, 2020 Abstract Arcuate mid-infrared nebulae known as stellar bow shock nebulae (SBNe) have been previously hypothesized to be supported by the strong stellar winds and/or luminosity of massive early-type stars. We present an optical spectroscopic survey of 84 stars identified from mid-infrared images as candidate SBN-supporting stars.
Matthew S Povich +2 more
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Interstellar Weather Vanes: GLIMPSE Mid-Infrared Stellar Wind Bow Shocks in M17 and RCW 49 [PDF]
Astrophysical Journal, 2008 17 pages, 3 figure, accepted for publication in ...
Matthew S Povich +2 more
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Stellar Bow Shocks in the Northern Arm of the Galactic Center: More Members and Kinematics of the Massive Star Population [PDF]
Astrophysical Journal, 2005 We present new 2.2 micron diffraction-limited images from the W. M. Keck 10 m and Gemini 8 m telescopes of the cool Galactic Center sources, IRS 1W, 5, 8, 10W, and 21 along with new proper motions for IRS 1W, 10W and 21. These observations were carried out to test the bowshock hypothesis presented by Tanner et al. as an alternative to a very recent (10^
Mark R. Morris
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OB STARS AND STELLAR BOW SHOCKS IN CYGNUS-X: A NOVEL LABORATORY ESTIMATING STELLAR MASS LOSS RATES [PDF]
Astrophysical Journal, 2010 49 pages, 19 figures; Accepted for publication in ApJ; full-resolution color figure version available at http://physics.uwyo.edu/~chip/Papers/CygXBowshocks; comments ...
Henry A. Kobulnicky
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Runaway O and Be Stars Found Using Gaia DR3, New Stellar Bow Shocks and Search for Binaries
Bulletin de la Société Royale des Sciences de LiègeA relevant fraction of massive stars are runaways, moving with a significant peculiar velocity with respect to their environment. Kicks from supernova explosions or the dynamical ejection of stars from clusters can account for the runaway genesis. We have used Gaia DR3 data to study the velocity distribution of massive O and Be stars from the GOSC and ...
Marc Ribó
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Bow Shock Structures Near Young Stellar Objects
1988We have obtained narrow band CCD images of several Herbig-Haro objects resembling bow shocks. As predicted by bow shock theory, we find that the region of highest excitation coincides with the apex of the proposed shock.
T. P. Ray, R. Mundt
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