Now showing items 11-20 of 61
Infrared polarimetry of dark clouds. II : Magnetic field structure in the Rho Ophiuchi dark cloud
K-band polarimetry of 20 sources embedded within the densest region of the Rho Oph dark cloud has been obtained. The degree of polarization ranges from 1.1 to 7.4 percent, and the position angles have a bimodal distribution, ...
Spectropolarimetry of the molecular-hydrogen line emission from OMC-1
Observations of the H2 v = 1-0 S(1) line at 35 km/s velocity resolution were obtained at several locations within OMC-1, including the molecular hydrogen reflection nebula. All line profiles are smooth and show no evidence ...
The electromagnetic field in rotating coordinates
The electromagnetic field equations in rotating coordinates obtained by various authors, are based on incorrect expressions for the divergence and curl operators and the electromagnetic spatial vectors. This is a serious ...
Interstellar polarization in the dust lane of Centaurus A (NGC 5128)
Optical and infrared linear polarization measurements of the Type 1 supernova 1986G in Centaurus A are used to determine the wavelength dependence of polarization produced by transmission of radiation through the dust lane ...
Polarimetric mapping of a new infrared reflection nebula GGD 27 IRS
We report the discovery of an infrared reflection nebula GGD27 IRS, near the optical nebulosity GGD27. It shows a dumbbell-shaped structure with large degrees of polarization, up to 64%, in the K band. From the centrosymmetric ...
Magnetic field structure in dark clouds
(Reidel Publishing Company (Kluwer), 1987)
A high resolution hydrogen-line survey of Messier 31. III : H I holes in the interstellar medium
An analysis is carried out of H I holes in M 31 as detected with the Westerbork radiotelescope. The holes range from 100-1000 pc across and represent missing masses ranging from 1000-10 million solar masses, which would ...