Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387349586> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W4387349586 abstract "The existence of a vast nova shell surrounding the prototypical dwarf nova Z Camelopardalis (Z Cam) proves that some old novae undergo metamorphosis to appear as dwarf novae thousands of years after a nova eruption. The expansion rates of ancient nova shells offer a way to constrain both the time between nova eruptions and the time for post-nova mass transfer rates to decrease significantly, simultaneously testing nova thermonuclear runaway models and hibernation theory. Previous limits on the expansion rate of part of the Z Cam shell constrain the inter-eruption time between Z Cam nova events to be $>$ 1300 years. Deeper narrow-band imaging of the ejecta of Z Cam with the Condor Array Telescope now reveals very low surface brightness areas of the remainder of the shell. A second, even fainter shell is also detected, concentric with and nearly three times the size of the inner shell. This is the first observational support of the prediction that concentric shells must surround the frequently-erupting novae of relatively massive white dwarfs. The Condor images extend our Z Cam imaging baseline to 15 years, yielding the inner shell's expansion rate as $v = 83 pm 37$ km s$^{-1}$ at 23 degrees South of West, in excellent agreement with our 2012 prediction. This velocity corresponds to an approximate age of $t = 2672^{-817}_{+2102}$ yr. While consistent with the suggestion that the most recent nova eruption of Z Cam was the transient recorded by Chinese Imperial astrologers in the year 77 BCE, the age uncertainty is still too large to support or disprove a connection with Z Cam." @default.
- W4387349586 created "2023-10-05" @default.
- W4387349586 creator A5007235075 @default.
- W4387349586 creator A5007358809 @default.
- W4387349586 creator A5011537783 @default.
- W4387349586 creator A5020373385 @default.
- W4387349586 creator A5023107392 @default.
- W4387349586 creator A5028301941 @default.
- W4387349586 creator A5041586011 @default.
- W4387349586 creator A5052103497 @default.
- W4387349586 creator A5054878334 @default.
- W4387349586 creator A5087155914 @default.
- W4387349586 date "2023-09-29" @default.
- W4387349586 modified "2023-10-06" @default.
- W4387349586 title "Introducing the Condor Array Telescope: III. The expansion and age of the shell of the dwarf nova Z Camelopardalis, and detection of a second, larger shell" @default.
- W4387349586 doi "https://doi.org/10.48550/arxiv.2310.00123" @default.
- W4387349586 hasPublicationYear "2023" @default.
- W4387349586 type Work @default.
- W4387349586 citedByCount "0" @default.
- W4387349586 crossrefType "posted-content" @default.
- W4387349586 hasAuthorship W4387349586A5007235075 @default.
- W4387349586 hasAuthorship W4387349586A5007358809 @default.
- W4387349586 hasAuthorship W4387349586A5011537783 @default.
- W4387349586 hasAuthorship W4387349586A5020373385 @default.
- W4387349586 hasAuthorship W4387349586A5023107392 @default.
- W4387349586 hasAuthorship W4387349586A5028301941 @default.
- W4387349586 hasAuthorship W4387349586A5041586011 @default.
- W4387349586 hasAuthorship W4387349586A5052103497 @default.
- W4387349586 hasAuthorship W4387349586A5054878334 @default.
- W4387349586 hasAuthorship W4387349586A5087155914 @default.
- W4387349586 hasBestOaLocation W43873495861 @default.
- W4387349586 hasConcept C121332964 @default.
- W4387349586 hasConcept C125245961 @default.
- W4387349586 hasConcept C127413603 @default.
- W4387349586 hasConcept C127592171 @default.
- W4387349586 hasConcept C1276947 @default.
- W4387349586 hasConcept C130726490 @default.
- W4387349586 hasConcept C150846664 @default.
- W4387349586 hasConcept C159985019 @default.
- W4387349586 hasConcept C178802073 @default.
- W4387349586 hasConcept C192562407 @default.
- W4387349586 hasConcept C197445014 @default.
- W4387349586 hasConcept C199364081 @default.
- W4387349586 hasConcept C2781052500 @default.
- W4387349586 hasConcept C44870925 @default.
- W4387349586 hasConcept C92150305 @default.
- W4387349586 hasConceptScore W4387349586C121332964 @default.
- W4387349586 hasConceptScore W4387349586C125245961 @default.
- W4387349586 hasConceptScore W4387349586C127413603 @default.
- W4387349586 hasConceptScore W4387349586C127592171 @default.
- W4387349586 hasConceptScore W4387349586C1276947 @default.
- W4387349586 hasConceptScore W4387349586C130726490 @default.
- W4387349586 hasConceptScore W4387349586C150846664 @default.
- W4387349586 hasConceptScore W4387349586C159985019 @default.
- W4387349586 hasConceptScore W4387349586C178802073 @default.
- W4387349586 hasConceptScore W4387349586C192562407 @default.
- W4387349586 hasConceptScore W4387349586C197445014 @default.
- W4387349586 hasConceptScore W4387349586C199364081 @default.
- W4387349586 hasConceptScore W4387349586C2781052500 @default.
- W4387349586 hasConceptScore W4387349586C44870925 @default.
- W4387349586 hasConceptScore W4387349586C92150305 @default.
- W4387349586 hasLocation W43873495861 @default.
- W4387349586 hasOpenAccess W4387349586 @default.
- W4387349586 hasPrimaryLocation W43873495861 @default.
- W4387349586 hasRelatedWork W1603361974 @default.
- W4387349586 hasRelatedWork W194919251 @default.
- W4387349586 hasRelatedWork W2019046080 @default.
- W4387349586 hasRelatedWork W2611943154 @default.
- W4387349586 hasRelatedWork W2741028229 @default.
- W4387349586 hasRelatedWork W2905159570 @default.
- W4387349586 hasRelatedWork W2950463365 @default.
- W4387349586 hasRelatedWork W2963270007 @default.
- W4387349586 hasRelatedWork W4385714461 @default.
- W4387349586 hasRelatedWork W4386764766 @default.
- W4387349586 isParatext "false" @default.
- W4387349586 isRetracted "false" @default.
- W4387349586 workType "article" @default.