Matches in SemOpenAlex for { <https://semopenalex.org/work/W2000929508> ?p ?o ?g. }
- W2000929508 endingPage "98" @default.
- W2000929508 startingPage "98" @default.
- W2000929508 abstract "This is the second in a series of papers based on data from DISCS, a Submillimeter Array observing program aimed at spatially and spectrally resolving the chemical composition of 12 protoplanetary disks. We present data on six Southern sky sources - IM Lup, SAO 206462 (HD 135344b), HD 142527, AS 209, AS 205 and V4046 Sgr - which complement the six sources in the Taurus star forming region reported previously. CO 2-1 and HCO+ 3-2 emission are detected and resolved in all disks and show velocity patterns consistent with Keplerian rotation. Where detected, the emission from DCO+ 3-2, N2H+ 3-2, H2CO 3-2 and 4-3,HCN 3-2 and CN 2-1 are also generally spatially resolved. The detection rates are highest toward the M and K stars, while the F star SAO 206462 has only weak CN and HCN emission, and H2CO alone is detected toward HD 142527. These findings together with the statistics from the previous Taurus disks, support the hypothesis that high detection rates of many small molecules depend on the presence of a cold and protected disk midplane, which is less common around F and A stars compared to M and K stars. Disk-averaged variations in the proposed radiation tracer CN/HCN are found to be small, despite two orders of magnitude range of spectral types and accretion rates. In contrast, the resolved images suggest that the CN/HCN emission ratio varies with disk radius in at least two of the systems. There are no clear observational differences in the disk chemistry between the classical/full T Tauri disks and transitional disks. Furthermore, the observed line emission does not depend on measured accretion luminosities or the number of infrared lines detected, which suggests that the chemistry outside of 100 AU is not coupled to the physical processes that drive the chemistry in the innermost few AU." @default.
- W2000929508 created "2016-06-24" @default.
- W2000929508 creator A5004002392 @default.
- W2000929508 creator A5006130581 @default.
- W2000929508 creator A5012473833 @default.
- W2000929508 creator A5016268626 @default.
- W2000929508 creator A5042266774 @default.
- W2000929508 creator A5063649126 @default.
- W2000929508 creator A5073003078 @default.
- W2000929508 creator A5081872909 @default.
- W2000929508 creator A5090482272 @default.
- W2000929508 date "2011-06-01" @default.
- W2000929508 modified "2023-10-16" @default.
- W2000929508 title "DISK IMAGING SURVEY OF CHEMISTRY WITH SMA. II. SOUTHERN SKY PROTOPLANETARY DISK DATA AND FULL SAMPLE STATISTICS" @default.
- W2000929508 cites W1480469483 @default.
- W2000929508 cites W1972551044 @default.
- W2000929508 cites W1972683834 @default.
- W2000929508 cites W1989986103 @default.
- W2000929508 cites W1997284021 @default.
- W2000929508 cites W2006029865 @default.
- W2000929508 cites W2009132417 @default.
- W2000929508 cites W2012465054 @default.
- W2000929508 cites W2016140455 @default.
- W2000929508 cites W2016500630 @default.
- W2000929508 cites W2025788510 @default.
- W2000929508 cites W2028828100 @default.
- W2000929508 cites W2029704547 @default.
- W2000929508 cites W2033090739 @default.
- W2000929508 cites W2033697868 @default.
- W2000929508 cites W2038416916 @default.
- W2000929508 cites W2045780656 @default.
- W2000929508 cites W2046322338 @default.
- W2000929508 cites W2047712469 @default.
- W2000929508 cites W2067470861 @default.
- W2000929508 cites W2068474102 @default.
- W2000929508 cites W2069626079 @default.
- W2000929508 cites W2078188791 @default.
- W2000929508 cites W2080430275 @default.
- W2000929508 cites W2082923595 @default.
- W2000929508 cites W2090374392 @default.
- W2000929508 cites W2091411196 @default.
- W2000929508 cites W2109062445 @default.
- W2000929508 cites W2115607643 @default.
- W2000929508 cites W2119534524 @default.
- W2000929508 cites W2123144427 @default.
- W2000929508 cites W2124241871 @default.
- W2000929508 cites W2127867276 @default.
- W2000929508 cites W2130659732 @default.
- W2000929508 cites W2137989562 @default.
- W2000929508 cites W2145988944 @default.
- W2000929508 cites W2146047103 @default.
- W2000929508 cites W2150032215 @default.
- W2000929508 cites W2153970052 @default.
- W2000929508 cites W2157756192 @default.
- W2000929508 cites W2166983740 @default.
- W2000929508 cites W2171374983 @default.
- W2000929508 cites W3098101279 @default.
- W2000929508 cites W3099003710 @default.
- W2000929508 cites W3099966931 @default.
- W2000929508 cites W3100078855 @default.
- W2000929508 cites W3100536984 @default.
- W2000929508 cites W3101116291 @default.
- W2000929508 cites W3102312332 @default.
- W2000929508 cites W3102500414 @default.
- W2000929508 cites W3103293352 @default.
- W2000929508 cites W3104241631 @default.
- W2000929508 cites W3104885151 @default.
- W2000929508 cites W3105141861 @default.
- W2000929508 cites W3105233890 @default.
- W2000929508 cites W4294942467 @default.
- W2000929508 cites W4299670320 @default.
- W2000929508 doi "https://doi.org/10.1088/0004-637x/734/2/98" @default.
- W2000929508 hasPublicationYear "2011" @default.
- W2000929508 type Work @default.
- W2000929508 sameAs 2000929508 @default.
- W2000929508 citedByCount "134" @default.
- W2000929508 countsByYear W20009295082012 @default.
- W2000929508 countsByYear W20009295082013 @default.
- W2000929508 countsByYear W20009295082014 @default.
- W2000929508 countsByYear W20009295082015 @default.
- W2000929508 countsByYear W20009295082016 @default.
- W2000929508 countsByYear W20009295082017 @default.
- W2000929508 countsByYear W20009295082018 @default.
- W2000929508 countsByYear W20009295082019 @default.
- W2000929508 countsByYear W20009295082020 @default.
- W2000929508 countsByYear W20009295082021 @default.
- W2000929508 countsByYear W20009295082022 @default.
- W2000929508 countsByYear W20009295082023 @default.
- W2000929508 crossrefType "journal-article" @default.
- W2000929508 hasAuthorship W2000929508A5004002392 @default.
- W2000929508 hasAuthorship W2000929508A5006130581 @default.
- W2000929508 hasAuthorship W2000929508A5012473833 @default.
- W2000929508 hasAuthorship W2000929508A5016268626 @default.
- W2000929508 hasAuthorship W2000929508A5042266774 @default.
- W2000929508 hasAuthorship W2000929508A5063649126 @default.
- W2000929508 hasAuthorship W2000929508A5073003078 @default.
- W2000929508 hasAuthorship W2000929508A5081872909 @default.
- W2000929508 hasAuthorship W2000929508A5090482272 @default.