The influence of general relativistic effects on spectral line profiles is studied. Some peculiarities observed in the profiles of broad lines of AGNs, like the global redshift of the line and simultaneous blueshift of the peak of the profile with respect to the reference system of the narrow lines, are obtainable if the source region is rotating

Near-IR photometry of 38 objects associated with unidentified IRAS PSC sources, which have colors in the FIR similar to those of planetary nebulae are presented. From their IR flux distribution, from their low-resolution IR spectra and from their position in the near-IR color-color diagrams, their precise nature is identified. They fall in

Analysis of data obtained over the years 1980-1985 are analyzed to show that the period of the 160-minute signal is indeed 160.00 minutes. It is demonstrated that this signal may be simulated by a slightly distorted diurnal sine wave such as that occasioned by differential atmospheric extinction.

IAUC 4760 available at Central Bureau for Astronomical Telegrams. IAUC 4760 available at Central Bureau for Astronomical Telegrams.

Statistical techniques are devised to assess the likelihood of a Poisson sample of points in two and three dimensions, containing specific filamentary structures. For that purpose, Otto et al.'s (1986) expression for the probability density of clumps in a Poissonian distribution of points is generalized for any value of the density contrast. A way

CCD surface photometry of the radio galaxy B2 0034+25 is reported. Fourier analysis of the intensity variations along a set of closely spaced elliptical contours fitted to the intensity distribution reveals a high positive cos 4-theta component in the inner 10 arcsecs. Subtraction of elliptical models of the stellar light shows the presence of a