CYLINDRICAL PLANETARY NEBULAE. I. FLOW FROM AN IRRADIATED RING

Cylindrical Planetary Nebulae. I. Flow from an Irradiated Ring

Many bipolar nebulae with a pronounced cylindrical shape, such as Henize 3-401, show no indication whatsoever of interaction between a disk and a stellar wind, or a jet on the nebular axis.I propose that the disk that is observed at the base of the bipolar is itself the source of the outflow.In particular, I assume that irradiation from the sara st

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Temporal-Spatial Distribution of Surface Urban Heat Island and Urban Pollution Island in an Industrial City: Seasonal Analysis

This research investigates the better waters xl7000 complex interplay between urban heat island (UHI) and urban pollution island in the context of rapid urbanization.Using remote-sensed land surface temperature (LST), the UHI is categorized into five intensity levels.Air pollution monitoring in Arak city, including green spaces, roads, and industri

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