FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100589966> ?p ?o ?g. }

• W3100589966 endingPage "A124" @default.
• W3100589966 startingPage "A124" @default.
• W3100589966 abstract "(abridged) We used the IRAM 30-m to perform a sensitive wideband survey of 30 protoplanetary disks in the Taurus Auriga region. We simultaneously observed HCO$^+$(3-2), HCN(3-2), C$_2$H(3-2), CS(5-4), and two transitions of SO. We combine the results with a previous survey which observed $^{13}$CO (2-1), CN(2-1), two o-H$_2$CO lines and one of SO. We use available interferometric data to derive excitation temperatures of CN and C$_2$H in several sources. We determine characteristic sizes of the gas disks and column densities of all molecules using a parametric power-law disk model. Our study is mostly sensitive to molecules at 200-400 au from the stars. We compare the derived column densities to the predictions of an extensive gas-grain chemical disk model, under conditions representative of T Tauri disks. This survey provides 20 new detections of HCO$^+$ in disks, 18 in HCN, 11 in C$_2$H, 8 in CS and 4 in SO. HCO$^+$ is detected in almost all sources, and its J=3-2 line is essentially optically thick, providing good estimates of the disk radii. The other transitions are (at least partially) optically thin. Variations of the column density ratios do not correlate with any specific property of the star or disk. Disks around Herbig Ae stars appear less rich in molecules than those around T Tauri stars, although the sample remains small. SO is only found in the (presumably younger) embedded objects, perhaps reflecting an evolution of the S chemistry due to increasing depletion with time. Overall, the molecular column densities, and in particular the CN/HCN and CN/C$_2$H ratios, are well reproduced by gas-grain chemistry in cold disks. This study provides a census of simple molecules in disks of radii $> 200-300$ au. Extending that to smaller disks, or searching for less abundant or more complex molecules requires a much more sensitive facility, i.e. NOEMA and ALMA." @default.
• W3100589966 created "2020-11-23" @default.
• W3100589966 creator A5018979598 @default.
• W3100589966 creator A5020333646 @default.
• W3100589966 creator A5034745280 @default.
• W3100589966 creator A5041629407 @default.
• W3100589966 creator A5045000084 @default.
• W3100589966 creator A5060413992 @default.
• W3100589966 creator A5066395722 @default.
• W3100589966 creator A5072775492 @default.
• W3100589966 creator A5090376484 @default.
• W3100589966 date "2016-08-01" @default.
• W3100589966 modified "2023-10-06" @default.
• W3100589966 title "Chemistry in disks" @default.
• W3100589966 cites W1480469483 @default.
• W3100589966 cites W1656728464 @default.
• W3100589966 cites W1685521179 @default.
• W3100589966 cites W1686948345 @default.
• W3100589966 cites W1967475062 @default.
• W3100589966 cites W1973652382 @default.
• W3100589966 cites W1977430478 @default.
• W3100589966 cites W1978852048 @default.
• W3100589966 cites W1998211168 @default.
• W3100589966 cites W2000702886 @default.
• W3100589966 cites W2002702371 @default.
• W3100589966 cites W2023574719 @default.
• W3100589966 cites W2024476742 @default.
• W3100589966 cites W2029704547 @default.
• W3100589966 cites W2037756595 @default.
• W3100589966 cites W2038416916 @default.
• W3100589966 cites W2047558821 @default.
• W3100589966 cites W2049861983 @default.
• W3100589966 cites W2055281353 @default.
• W3100589966 cites W2057510365 @default.
• W3100589966 cites W2061613524 @default.
• W3100589966 cites W2065207649 @default.
• W3100589966 cites W2084866557 @default.
• W3100589966 cites W2087879226 @default.
• W3100589966 cites W2129239924 @default.
• W3100589966 cites W2132535984 @default.
• W3100589966 cites W2137989562 @default.
• W3100589966 cites W2139384515 @default.
• W3100589966 cites W2143146468 @default.
• W3100589966 cites W2147841078 @default.
• W3100589966 cites W2150042534 @default.
• W3100589966 cites W2156011793 @default.
• W3100589966 cites W2157296744 @default.
• W3100589966 cites W2157756192 @default.
• W3100589966 cites W2166983740 @default.
• W3100589966 cites W2547556251 @default.
• W3100589966 cites W2963941288 @default.
• W3100589966 cites W3098037626 @default.
• W3100589966 cites W3098255932 @default.
• W3100589966 cites W3098904422 @default.
• W3100589966 cites W3099125925 @default.
• W3100589966 cites W3099700036 @default.
• W3100589966 cites W3100221926 @default.
• W3100589966 cites W3101625314 @default.
• W3100589966 cites W3102015162 @default.
• W3100589966 cites W3102094901 @default.
• W3100589966 cites W3102414330 @default.
• W3100589966 cites W3103049602 @default.
• W3100589966 cites W3103293352 @default.
• W3100589966 cites W3103387875 @default.
• W3100589966 cites W3103681827 @default.
• W3100589966 cites W3103982048 @default.
• W3100589966 cites W3104336318 @default.
• W3100589966 cites W3105384870 @default.
• W3100589966 cites W3105859871 @default.
• W3100589966 cites W3106179128 @default.
• W3100589966 cites W3125645620 @default.
• W3100589966 cites W3125812469 @default.
• W3100589966 cites W4231351050 @default.
• W3100589966 cites W4243306668 @default.
• W3100589966 cites W4294573034 @default.
• W3100589966 doi "https://doi.org/10.1051/0004-6361/201527088" @default.
• W3100589966 hasPublicationYear "2016" @default.
• W3100589966 type Work @default.
• W3100589966 sameAs 3100589966 @default.
• W3100589966 citedByCount "53" @default.
• W3100589966 countsByYear W31005899662017 @default.
• W3100589966 countsByYear W31005899662018 @default.
• W3100589966 countsByYear W31005899662019 @default.
• W3100589966 countsByYear W31005899662020 @default.
• W3100589966 countsByYear W31005899662021 @default.
• W3100589966 countsByYear W31005899662022 @default.
• W3100589966 countsByYear W31005899662023 @default.
• W3100589966 crossrefType "journal-article" @default.
• W3100589966 hasAuthorship W3100589966A5018979598 @default.
• W3100589966 hasAuthorship W3100589966A5020333646 @default.
• W3100589966 hasAuthorship W3100589966A5034745280 @default.
• W3100589966 hasAuthorship W3100589966A5041629407 @default.
• W3100589966 hasAuthorship W3100589966A5045000084 @default.
• W3100589966 hasAuthorship W3100589966A5060413992 @default.
• W3100589966 hasAuthorship W3100589966A5066395722 @default.
• W3100589966 hasAuthorship W3100589966A5072775492 @default.
• W3100589966 hasAuthorship W3100589966A5090376484 @default.
• W3100589966 hasBestOaLocation W31005899661 @default.

• next