Astrophysics and Space Science
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Observations of the Orion Nebula in Hα, [NII] and Hβ lines
Astrophysics and Space Science - Tập 88 - Trang 477-485 - 1982
Monochromatic photographs of the Orion Nebula taken through narrow bandpass interference filters (Δλ=10 Å) centred on Hα, Hβ and [NII] lines are presented. Ratio contours of Hα/[NII] and Hα/Hβ are derived. They enable a detailed study of the point-to-point variation in ionization structure and temperature throughout the nebula. Dust located within the ionized gas is studied from the Hα/Hβ ratio wh......
Erratum to: Anisotropic compact sphere with Van der Waals equation of state
Astrophysics and Space Science - Tập 354 Số 2 - Trang 683-683 - 2014
On properties of coronal mass ejection-solar flare linked events
Astrophysics and Space Science - Tập 366 - Trang 1-6 - 2021
In the present paper, the relation between the CMEs and their linked solar flares is examined during the entire solar cycle 23. During this solar cycle and under certain temporal and spatial conditions, 521 CMEs linked with solar flares are selected. These selected CMEs are separated into two groups according to their time of detection, 254 Before Flare-ECME events (BF-CMEs) and 267 After Flare–EC......
Pulsed and continuous radiation from white dwarfs
Astrophysics and Space Science - Tập 17 - Trang 117-125 - 1972
We demonstrate that the detection of steady kV X-ray emission from the vicinity of a white dwarf star possessing a magnetic field of the order of 107 G will provide strong evidence that the white dwarf is rotating with a period of about one minute. We also show that detection of pulsed radiation at about 1 mm wavelength would confirm this. Also some of the interesting dynamical consequences for th......
Far ultraviolet nighttime ionospheric photometer
Astrophysics and Space Science - Tập 355 - Trang 1-7 - 2014
Far Ultraviolet Nighttime Ionopsheric Photometer (FNIP) is a newly-designed instrument for low earth orbit missions, observing the earth night airglow nadir at OI 135.6 nm emission produced by ionospheric O++e recombination and receiving the horizontal information on nighttime ionosphere with a spatial resolution of about 1.6∘×3.8∘. This simple, highly robust instrument excludes OI 130.4 nm emissi......
ISO-LWS Observations of the NGC7129 Star Forming Region
Astrophysics and Space Science - Tập 261 - Trang 187-190 - 1998
We present far-infrared observations of the surroundings of the Herbig Be star LkHα234 in NGC7129, obtained with the Long Wavelength Spectrometer on board of the Infrared Space Observatory. [CII]158µm, [OI]63µm and [OI]146µm lines are detected everywhere in the mapped region and their intensity ratios are consistent with the model predictions of a photodissociation region. The spatial distribution......
Effective potential energy for relativistic particles in the field of inclined rotating magnetized sphere
Astrophysics and Space Science - Tập 353 Số 2 - Trang 473-483 - 2014
Statistical results from a jcmt survey of MM and sub-MM emission in herbig ae/be stars
Astrophysics and Space Science - Tập 224 Số 1-2 - Trang 555-556 - 1995
Hydromagnetic stability of some non-dissipative flows subject to non-axisymmetric disturbances
Astrophysics and Space Science - Tập 115 - Trang 51-60 - 1985
We study the linear stability of nondissipative flow of an electrically conducting fluid subject to non-axisymmetric disturbances in the following cases: (i) the radial flow of an incompressible fluid between two concentric porous circular cylinders in the presence of a radial magnetic field and (ii) axial flow of a compressible fluid between two concentric circular cylinders permeated by a helica......
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