1,725,608 research outputs found
Kansas City, Mexico & Orient (KCMO) Boxcar 3831
No full textA photograph postcard showing the Kansas City, Mexico & Orient (KCMO) boxcar 3831, built 11/1907, rebuilt 3/1925, 0,000 cap'y, Lt. Wt. 38,700
Block Card 3831 Torrance Drive
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 3831 Torrance Drive (Toledo, Ohio) | Bungalow Style | Gens and Short Subdivision (Toledo, Ohio) | Willys Park area (Toledo, Ohio) | West Toledo (Toledo, Ohio
Block Card 3831 Dorr Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Modern Colonial Style | Dwelling | Inverness Village Plat (Toledo, Ohio) | Reynolds Corners Area (Toledo, Ohio) | 3831 Dorr Street (Toledo, Ohio
Block Card 3831 Hoffman Road
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Dwelling | 3831 Hoffman Road (Toledo, Ohio) | Bungalow Style | Prairie Style | North Toledo Area (Toledo, Ohio) | Stickney-Buckeye Area (Toledo, Ohio
Block Card 3831 Summit Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Tastee-Freez (Toledo, Ohio) | neon sign | Point Place | North Toledo | 3831 Summit Street (Toledo, Ohio
Block Card 3831 Hazelhurst Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Dwelling (Toledo, Ohio) | multi-family | cleveland double | Homewood Park Extension (Toledo, Ohio) | Willys Park area (Toledo, Ohio) | West Toledo (Toledo, Ohio) | 3831 Hazelhurst Avenue (Toledo, Ohio
Block Card 3831 Surrey Road
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | Dwelling | Talmadge Gardens Addition (Toledo, Ohio) | Westgate Area (Toledo, Ohio) | 3831 Surrey Road (Toledo, Ohio
[Veto of H. 3831, R-410]
No full textThis veto message from Governor Mark Sanford vetoes H. 3831, R-410, a bill that mandates that nonfranchise automobile dealers complete at least eight hours of
prelicensing education courses before they may be issued a license to sell automobiles. These prelicensing requirements do not apply to franchise automobile dealers
Pulsational line profile variation of the roAp star HR 3831
No full textWe report the first comprehensive investigation of the line profile variation caused by
non-radial pulsation in an oscillating magnetic chemically peculiar star. Spectrum
variation of the well-known roAp star HR 3831 was detected using very high-resolution high
signal-to-noise spectroscopic time-series observations and was followed through the whole
rotation cycle of the star. We confirmed the outstanding diversity of pulsational
behaviour of different lines in the HR 3831 spectrum and attributed this phenomenon to an interplay
between extreme vertical chemical inhomogeneity of the HR 3831 atmosphere and a running pulsation
wave, that is propagating towards the upper photospheric layers with increasing amplitude.
The rapid profile variation of the \ion{Nd}{iii} 6145 Å line, which shows the maximum pulsational
disturbances in the studied wavelength region, is characterised by measuring changes of its
equivalent width and the first three moments. Each of these observables exhibits almost purely
sinusoidal variation through the pulsation cycle, with the amplitude and phase clearly
modulated by the stellar rotation.
In contrast to previous photometric pulsational measurements of
roAp stars, our spectroscopic observational material admits straightforward astrophysical
interpretation and, hence, opens new and exciting possibilities for direct and accurate analysis of
the roAp pulsations.
We demonstrate that rotational modulation of the radial
velocity oscillations cannot be fully explained by an oblique axisymmetric dipole (,
) mode, implied by the classical oblique pulsator model of roAp stars.
Pulsational variation of the higher moments, in particular the line width, reveals substantial
contribution of the high-order () spherical harmonics that appear due to distortion of
pulsations in HR 3831 by the global magnetic field. We interpreted observations with a novel numerical
model of the pulsational variation and rotational modulation of the line profile moments in roAp
stars. Comparison of the observed and computed radial velocity
and line width variation was used to establish parameters of the oblique
pulsator model of HR 3831. Furthermore, definite detection of pulsational variation in lines of light
and iron-peak elements allows the first 3-D mapping of pulsations in a non-radially oscillating
star
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