Evidence for circumnuclear starbursts in spiral galaxies can take the form of a blue excess near the nucleus, but more frequently (because of dust extinction) H...

Observations of three post-Main-Sequence nebulae, taken with an intermediate dispersion spectrograph mounted on the 2.5 m Isaac Newton Telescope (La Palma...

A broad range of type I post-main-sequence nebulae have been mapped and studied spectroscopically in the J = 1 - 0, J = 2 - 1, and J = 3 - 2 transitions of CO...

In this paper we propose a method for interpolating multidimensional unbinned data, which could also be sparse, using artificial neural network techniques. An...

We analyze the properties of a sample of galaxies identified in a 21cm, H I-line survey of selected areas in the Perseus-Pisces supercluster and its foreground...

Type I post-main-sequence nebulae appear to be characterised by a range of unusual, and in certain cases extreme physical characteristics, including high...

The distribution of ionized, molecular, and atomic hydrogen in the disk and especially along the spiral arms of the Whirlpool galaxy, M51, is investigated by...

Several positions in the southern spiral arm and the interarm disk of NGC 4321 have been observed in CO (J = 1 to 0) using the NRO 45 m telescope at Nobeyama...