Browsing Journal Articles by Subject "Nuvens moleculares interestelares"
Now showing items 1-5 of 5
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An Hα nuclear spiral structure in the E0 active galaxy Arp 102B
(2011) [Journal article]We report the discovery of a two-armed mini-spiral structure within the inner kiloparsec of the E0 LINER/Seyfert 1 galaxy Arp 102B. The arms are observed in Hα emission and located east and west of the nucleus, extending ... -
Discovery of two embedded clusters with WISE in the high Galactic latitude cloud HRK 81.4−77.8
(2015) [Journal article]Molecular clouds at very high latitude (b > 60°) away from the Galactic plane are rare and in general are expected to be non-star-forming. However, we report the discovery of two embedded clusters (Camargo 438 and Camargo ... -
Molecular chemistry and the missing mass problem in planetary nebulae
(2012) [Journal article]Context. Detections of molecular lines, mainly from H₂ and CO, reveal molecular material in planetary nebulae. Observations of a variety of molecules suggest that the molecular composition in these objects differs from ... -
Temperature inversion in long-range interacting systems
(2015) [Journal article]Temperature inversions occur in nature, e.g., in the solar corona and in interstellar molecular clouds: Somewhat counterintuitively, denser parts of the system are colder than dilute ones.We propose a simple and appealing ... -
The fate of the pre-main sequence-rich clusters collinder 197 and vdB92 : dissolution?
(2010) [Journal article]Context. Since most of the star clusters do not survive the embedded phase, their early dissolution appears to be a major source of field stars. However, catching a cluster in the act of dissolving is somewhat elusive. ...