Matches in SemOpenAlex for { <https://semopenalex.org/work/W4555819> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W4555819 abstract "We present photometric and spectroscopic observations of a peculiar variable (designated DASCH J075731.1+201735 or J0757) discovered from our DASCH project using the digitized Harvard College Observatory archival photographic plates. It brightened by about 1.5 magnitudes in B within a year starting in 1942, and then slowly faded back to its pre-outburst brightness from 1943 to the 1950s. The mean brightness level was stable before and after the outburst, and ellipsoidal variations with a period of $P=119.18pm0.07$ days are seen, suggesting that the star is tidally distorted. Radial-velocity measurements indicate that the orbit is nearly circular ($e=0.02pm0.01$) with a spectroscopic period that is the same as the photometric period. The binary consists of a $1.1pm0.3 M_odot$ M0III star, and a $0.6pm0.2 M_odot$ companion, very likely a white dwarf (WD). Unlike other symbiotic binaries, there is no sign of emission lines or a stellar wind in the spectra. With an outburst timescale of ~10 years and estimated B band peak luminosity M_B~0.7, J0757 is different from any other known classic or symbiotic novae. The most probable explanation of the outburst is Hydrogen shell-burning on the WD, although an accretion-powered flare cannot be ruled out." @default.
- W4555819 created "2016-06-24" @default.
- W4555819 creator A5001640610 @default.
- W4555819 creator A5007127468 @default.
- W4555819 creator A5017223692 @default.
- W4555819 creator A5037020800 @default.
- W4555819 creator A5041111005 @default.
- W4555819 creator A5054070152 @default.
- W4555819 creator A5073725092 @default.
- W4555819 date "2011-09-30" @default.
- W4555819 modified "2023-09-24" @default.
- W4555819 title "DASCH J075731.1+201735: Discovery of A Peculiar Slow Nova in A Peculiar Symbiotic Binary" @default.
- W4555819 cites W1496972338 @default.
- W4555819 cites W2085655154 @default.
- W4555819 hasPublicationYear "2011" @default.
- W4555819 type Work @default.
- W4555819 sameAs 4555819 @default.
- W4555819 citedByCount "0" @default.
- W4555819 crossrefType "posted-content" @default.
- W4555819 hasAuthorship W4555819A5001640610 @default.
- W4555819 hasAuthorship W4555819A5007127468 @default.
- W4555819 hasAuthorship W4555819A5017223692 @default.
- W4555819 hasAuthorship W4555819A5037020800 @default.
- W4555819 hasAuthorship W4555819A5041111005 @default.
- W4555819 hasAuthorship W4555819A5054070152 @default.
- W4555819 hasAuthorship W4555819A5073725092 @default.
- W4555819 hasConcept C121332964 @default.
- W4555819 hasConcept C12287442 @default.
- W4555819 hasConcept C125245961 @default.
- W4555819 hasConcept C1276947 @default.
- W4555819 hasConcept C150846664 @default.
- W4555819 hasConcept C196778148 @default.
- W4555819 hasConcept C197445014 @default.
- W4555819 hasConcept C2780725113 @default.
- W4555819 hasConcept C32224563 @default.
- W4555819 hasConcept C44870925 @default.
- W4555819 hasConcept C4839761 @default.
- W4555819 hasConcept C96141758 @default.
- W4555819 hasConcept C98444146 @default.
- W4555819 hasConceptScore W4555819C121332964 @default.
- W4555819 hasConceptScore W4555819C12287442 @default.
- W4555819 hasConceptScore W4555819C125245961 @default.
- W4555819 hasConceptScore W4555819C1276947 @default.
- W4555819 hasConceptScore W4555819C150846664 @default.
- W4555819 hasConceptScore W4555819C196778148 @default.
- W4555819 hasConceptScore W4555819C197445014 @default.
- W4555819 hasConceptScore W4555819C2780725113 @default.
- W4555819 hasConceptScore W4555819C32224563 @default.
- W4555819 hasConceptScore W4555819C44870925 @default.
- W4555819 hasConceptScore W4555819C4839761 @default.
- W4555819 hasConceptScore W4555819C96141758 @default.
- W4555819 hasConceptScore W4555819C98444146 @default.
- W4555819 hasLocation W45558191 @default.
- W4555819 hasOpenAccess W4555819 @default.
- W4555819 hasPrimaryLocation W45558191 @default.
- W4555819 hasRelatedWork W2012575728 @default.
- W4555819 hasRelatedWork W2020100751 @default.
- W4555819 hasRelatedWork W2024272205 @default.
- W4555819 hasRelatedWork W2067024216 @default.
- W4555819 hasRelatedWork W2068623074 @default.
- W4555819 hasRelatedWork W2074509736 @default.
- W4555819 hasRelatedWork W2104281123 @default.
- W4555819 hasRelatedWork W2132040718 @default.
- W4555819 hasRelatedWork W2153474912 @default.
- W4555819 hasRelatedWork W2171188052 @default.
- W4555819 hasRelatedWork W2955785215 @default.
- W4555819 hasRelatedWork W2965131729 @default.
- W4555819 hasRelatedWork W3028495828 @default.
- W4555819 hasRelatedWork W3089254961 @default.
- W4555819 hasRelatedWork W3103678135 @default.
- W4555819 hasRelatedWork W3105375587 @default.
- W4555819 hasRelatedWork W3105938175 @default.
- W4555819 hasRelatedWork W52939203 @default.
- W4555819 hasRelatedWork W3036232125 @default.
- W4555819 hasRelatedWork W3112062054 @default.
- W4555819 isParatext "false" @default.
- W4555819 isRetracted "false" @default.
- W4555819 magId "4555819" @default.
- W4555819 workType "article" @default.