Matches in SemOpenAlex for { <https://semopenalex.org/work/W3149553314> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W3149553314 abstract "We report the first survey of molecular emission from cometary volatiles using standalone Atacama Compact Array (ACA) observations of the Atacama Large Millimeter/Submillimeter Array (ALMA) toward comet C/2015 ER61 (PanSTARRS) carried out on UT 2017 April 11 and 15, shortly after its April 4 outburst. These measurements of HCN, CS, CH$_3$OH, H$_2$CO, and HNC (along with continuum emission from dust) probed the inner coma of C/2015 ER61, revealing asymmetric outgassing and discerning parent from daughter/distributed source species. This work presents spectrally integrated flux maps, autocorrelation spectra, production rates, and parent scale lengths for each molecule, and a stringent upper limit for CO. HCN is consistent with direct nucleus release in C/2015 ER61, whereas CS, H$_2$CO, HNC, and potentially CH$_3$OH are associated with distributed sources in the coma. Adopting a Haser model, parent scale lengths determined for H$_2$CO (L$_p$ $sim$ 2200 km) and HNC (L$_p$ $sim$ 3300 km) are consistent with previous work in comets, whereas significant extended source production (L$_p$ $sim$ 2000 km) is indicated for CS, suggesting production from an unknown parent in the coma. The continuum presents a point-source distribution, with a flux density implying an excessively large nucleus, inconsistent with other estimates of the nucleus size. It is best explained by the thermal emission of slowly-moving outburst ejectas, with total mass 5--8 $times$ 10$^{10}$ kg. These results demonstrate the power of the ACA for revealing the abundances, spatial distributions, and locations of molecular production for volatiles in moderately bright comets such as C/2015 ER61." @default.
- W3149553314 created "2021-04-13" @default.
- W3149553314 creator A5014699792 @default.
- W3149553314 creator A5037986048 @default.
- W3149553314 creator A5038864043 @default.
- W3149553314 creator A5040414958 @default.
- W3149553314 creator A5041950981 @default.
- W3149553314 creator A5047604988 @default.
- W3149553314 creator A5073600958 @default.
- W3149553314 creator A5077038469 @default.
- W3149553314 creator A5081621379 @default.
- W3149553314 date "2021-04-07" @default.
- W3149553314 modified "2023-09-27" @default.
- W3149553314 title "Leveraging the ALMA Atacama Compact Array for Cometary Science: An Interferometric Survey of Comet C/2015 ER61 (PanSTARRS) and Evidence for a Distributed Source of Carbon Monosulfide" @default.
- W3149553314 cites W2772923775 @default.
- W3149553314 hasPublicationYear "2021" @default.
- W3149553314 type Work @default.
- W3149553314 sameAs 3149553314 @default.
- W3149553314 citedByCount "0" @default.
- W3149553314 crossrefType "posted-content" @default.
- W3149553314 hasAuthorship W3149553314A5014699792 @default.
- W3149553314 hasAuthorship W3149553314A5037986048 @default.
- W3149553314 hasAuthorship W3149553314A5038864043 @default.
- W3149553314 hasAuthorship W3149553314A5040414958 @default.
- W3149553314 hasAuthorship W3149553314A5041950981 @default.
- W3149553314 hasAuthorship W3149553314A5047604988 @default.
- W3149553314 hasAuthorship W3149553314A5073600958 @default.
- W3149553314 hasAuthorship W3149553314A5077038469 @default.
- W3149553314 hasAuthorship W3149553314A5081621379 @default.
- W3149553314 hasConcept C1012414 @default.
- W3149553314 hasConcept C103783831 @default.
- W3149553314 hasConcept C109792285 @default.
- W3149553314 hasConcept C120665830 @default.
- W3149553314 hasConcept C121332964 @default.
- W3149553314 hasConcept C125857072 @default.
- W3149553314 hasConcept C1276947 @default.
- W3149553314 hasConcept C178790620 @default.
- W3149553314 hasConcept C185592680 @default.
- W3149553314 hasConcept C2777158746 @default.
- W3149553314 hasConcept C2777708036 @default.
- W3149553314 hasConcept C44870925 @default.
- W3149553314 hasConcept C512968161 @default.
- W3149553314 hasConcept C62520636 @default.
- W3149553314 hasConcept C68709404 @default.
- W3149553314 hasConcept C94081185 @default.
- W3149553314 hasConcept C98444146 @default.
- W3149553314 hasConceptScore W3149553314C1012414 @default.
- W3149553314 hasConceptScore W3149553314C103783831 @default.
- W3149553314 hasConceptScore W3149553314C109792285 @default.
- W3149553314 hasConceptScore W3149553314C120665830 @default.
- W3149553314 hasConceptScore W3149553314C121332964 @default.
- W3149553314 hasConceptScore W3149553314C125857072 @default.
- W3149553314 hasConceptScore W3149553314C1276947 @default.
- W3149553314 hasConceptScore W3149553314C178790620 @default.
- W3149553314 hasConceptScore W3149553314C185592680 @default.
- W3149553314 hasConceptScore W3149553314C2777158746 @default.
- W3149553314 hasConceptScore W3149553314C2777708036 @default.
- W3149553314 hasConceptScore W3149553314C44870925 @default.
- W3149553314 hasConceptScore W3149553314C512968161 @default.
- W3149553314 hasConceptScore W3149553314C62520636 @default.
- W3149553314 hasConceptScore W3149553314C68709404 @default.
- W3149553314 hasConceptScore W3149553314C94081185 @default.
- W3149553314 hasConceptScore W3149553314C98444146 @default.
- W3149553314 hasLocation W31495533141 @default.
- W3149553314 hasOpenAccess W3149553314 @default.
- W3149553314 hasPrimaryLocation W31495533141 @default.
- W3149553314 hasRelatedWork W1517431027 @default.
- W3149553314 hasRelatedWork W1642781140 @default.
- W3149553314 hasRelatedWork W1964623037 @default.
- W3149553314 hasRelatedWork W1984054457 @default.
- W3149553314 hasRelatedWork W2005952487 @default.
- W3149553314 hasRelatedWork W2019135975 @default.
- W3149553314 hasRelatedWork W2029139139 @default.
- W3149553314 hasRelatedWork W2089661396 @default.
- W3149553314 hasRelatedWork W2090570196 @default.
- W3149553314 hasRelatedWork W2098359476 @default.
- W3149553314 hasRelatedWork W2118213049 @default.
- W3149553314 hasRelatedWork W2166796808 @default.
- W3149553314 hasRelatedWork W2766591176 @default.
- W3149553314 hasRelatedWork W2804212346 @default.
- W3149553314 hasRelatedWork W2959020867 @default.
- W3149553314 hasRelatedWork W2963001911 @default.
- W3149553314 hasRelatedWork W3104100538 @default.
- W3149553314 hasRelatedWork W3127914507 @default.
- W3149553314 hasRelatedWork W3208186739 @default.
- W3149553314 hasRelatedWork W73438351 @default.
- W3149553314 isParatext "false" @default.
- W3149553314 isRetracted "false" @default.
- W3149553314 magId "3149553314" @default.
- W3149553314 workType "article" @default.