Matches in SemOpenAlex for { <https://semopenalex.org/work/W1490743247> ?p ?o ?g. }
Showing items 1 to 62 of
62
with 100 items per page.
- W1490743247 abstract "We investigate the infrared properties of the IRAS sources not confirmed as PNe in Van de Steene & Pottasch (1993). We observed 28 objects in the N-band of which 20 were detected and 5 were resolved. We obtained medium resolution Br_gamma spectra and we took high resolution JHKL images of these 20 objects. We critically assessed the identification of the IRAS counterpart in the images. Of sixteen positively identified objects, seven show Br_gamma in absorption, another six objects show Br_gamma in emission on top of a continuum. In another three objects, no clear Br_gamma absorption or emission was visible. Our detection rate of emission line objects is higher compared to previous studies. None of the objects with Br_gamma in emission were detected above a detection limit of 0.6 mJy/beam at 6 cm, while they should have been easily detected if the radio flux was optically thin and Case B recombination was applicable. Their SED's are typical for post-AGB stars. We also constructed various color-color diagrams using the near-infrared and IRAS magnitudes. No distinction can be made between the objects showing Br_gamma in emission, absorption, or a flat spectrum in the near and far-infrared color-color diagrams. The near-infrared color-color diagrams show evidence for a very large range of extinction, which in part is of circumstellar origin. Near-infrared versus far-infrared color-color diagrams show trends that are consistent with the expected evolution of the circumstellar shell. This sample of post-AGB stars show a larger range in color and are generally closer to the galactic plane than the ones known so far." @default.
- W1490743247 created "2016-06-24" @default.
- W1490743247 creator A5008721221 @default.
- W1490743247 creator A5082132306 @default.
- W1490743247 creator A5077036142 @default.
- W1490743247 date "2000-08-01" @default.
- W1490743247 modified "2023-09-28" @default.
- W1490743247 title "Near-infrared and Br_gamma observations of post-AGB stars" @default.
- W1490743247 cites W3013438729 @default.
- W1490743247 hasPublicationYear "2000" @default.
- W1490743247 type Work @default.
- W1490743247 sameAs 1490743247 @default.
- W1490743247 citedByCount "0" @default.
- W1490743247 crossrefType "posted-content" @default.
- W1490743247 hasAuthorship W1490743247A5008721221 @default.
- W1490743247 hasAuthorship W1490743247A5077036142 @default.
- W1490743247 hasAuthorship W1490743247A5082132306 @default.
- W1490743247 hasConcept C101991246 @default.
- W1490743247 hasConcept C120665830 @default.
- W1490743247 hasConcept C121332964 @default.
- W1490743247 hasConcept C125287762 @default.
- W1490743247 hasConcept C1276947 @default.
- W1490743247 hasConcept C150846664 @default.
- W1490743247 hasConcept C158355884 @default.
- W1490743247 hasConcept C44870925 @default.
- W1490743247 hasConcept C4839761 @default.
- W1490743247 hasConcept C96141758 @default.
- W1490743247 hasConceptScore W1490743247C101991246 @default.
- W1490743247 hasConceptScore W1490743247C120665830 @default.
- W1490743247 hasConceptScore W1490743247C121332964 @default.
- W1490743247 hasConceptScore W1490743247C125287762 @default.
- W1490743247 hasConceptScore W1490743247C1276947 @default.
- W1490743247 hasConceptScore W1490743247C150846664 @default.
- W1490743247 hasConceptScore W1490743247C158355884 @default.
- W1490743247 hasConceptScore W1490743247C44870925 @default.
- W1490743247 hasConceptScore W1490743247C4839761 @default.
- W1490743247 hasConceptScore W1490743247C96141758 @default.
- W1490743247 hasOpenAccess W1490743247 @default.
- W1490743247 hasRelatedWork W1654672872 @default.
- W1490743247 hasRelatedWork W1921966926 @default.
- W1490743247 hasRelatedWork W1972614755 @default.
- W1490743247 hasRelatedWork W1989524179 @default.
- W1490743247 hasRelatedWork W2013997230 @default.
- W1490743247 hasRelatedWork W2014163394 @default.
- W1490743247 hasRelatedWork W2056608368 @default.
- W1490743247 hasRelatedWork W2078646167 @default.
- W1490743247 hasRelatedWork W2091820988 @default.
- W1490743247 hasRelatedWork W2160966131 @default.
- W1490743247 hasRelatedWork W2539995982 @default.
- W1490743247 hasRelatedWork W2952534122 @default.
- W1490743247 hasRelatedWork W3037036182 @default.
- W1490743247 hasRelatedWork W3100236290 @default.
- W1490743247 hasRelatedWork W3100240760 @default.
- W1490743247 hasRelatedWork W3100462671 @default.
- W1490743247 hasRelatedWork W3102253022 @default.
- W1490743247 hasRelatedWork W3103875120 @default.
- W1490743247 hasRelatedWork W3104154817 @default.
- W1490743247 hasRelatedWork W91742111 @default.
- W1490743247 isParatext "false" @default.
- W1490743247 isRetracted "false" @default.
- W1490743247 magId "1490743247" @default.
- W1490743247 workType "article" @default.