FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4308602217> ?p ?o ?g. }

• W4308602217 endingPage "A12" @default.
• W4308602217 startingPage "A12" @default.
• W4308602217 abstract "The total disk gas mass and elemental C, N, O composition of protoplanetary disks are crucial ingredients for our understanding of planet formation. Measuring the gas mass is complicated, since H$_2$ cannot be detected in the cold bulk of the disk and the elemental abundances with respect to hydrogen are degenerate with gas mass in all disk models. We present new NOEMA observations of CO, $^{13}$CO, C$^{18}$O and optically thin C$^{17}$O $J$=2-1 lines, and use additional high angular resolution Atacama Large Millimeter Array millimeter continuum and CO data to construct a representative model of LkCa 15. The transitions that constrain the gas mass and carbon abundance most are C$^{17}$O 2-1, N${_2}$H$^+$ 3-2 and HD 1-0. Using these three molecules we find that the gas mass in the LkCa 15 disk is $M_mathrm{g}=0.01 ^{+0.01}_{-0.004} M_{odot}$, a factor of six lower than estimated before. The carbon abundance is C/H = ($3 pm 1.5) times10^{-5}$, implying a moderate depletion of elemental carbon by a factor of 3-9. All other analyzed transitions also agree with these numbers, within a modeling uncertainty of a factor of two. Using the resolved ce{C2H} image we find a C/O ratio of $sim$1, which is consistent with literature values of H$_2$O depletion in this disk. The lack of severe carbon depletion in the LkCa 15 disk is consistent with the young age of the disk, but contrasts with the higher depletions seen in older cold transition disks. Combining optically thin CO isotopologue lines with N$_2$H$^+$ is promising to break the degeneracy between gas mass and CO abundance. The moderate level of depletion for this source with a cold, but young disk, suggests that long carbon transformation timescales contribute to the evolutionary trend seen in the level of carbon depletion among disk populations, rather than evolving temperature effects and presence of dust traps alone." @default.
• W4308602217 created "2022-11-13" @default.
• W4308602217 creator A5034795447 @default.
• W4308602217 creator A5042738127 @default.
• W4308602217 creator A5048537056 @default.
• W4308602217 creator A5062175349 @default.
• W4308602217 creator A5064161230 @default.
• W4308602217 date "2023-01-31" @default.
• W4308602217 modified "2023-09-30" @default.
• W4308602217 title "Disentangling the protoplanetary disk gas mass and carbon depletion through combined atomic and molecular tracers" @default.
• W4308602217 cites W147232447 @default.
• W4308602217 cites W1963963863 @default.
• W4308602217 cites W1964682831 @default.
• W4308602217 cites W1974546195 @default.
• W4308602217 cites W1991761726 @default.
• W4308602217 cites W2000929508 @default.
• W4308602217 cites W2023574719 @default.
• W4308602217 cites W2025337948 @default.
• W4308602217 cites W2034608771 @default.
• W4308602217 cites W2057282682 @default.
• W4308602217 cites W2077850477 @default.
• W4308602217 cites W2096604763 @default.
• W4308602217 cites W2097093399 @default.
• W4308602217 cites W2107163299 @default.
• W4308602217 cites W2108505042 @default.
• W4308602217 cites W2109931320 @default.
• W4308602217 cites W2115449016 @default.
• W4308602217 cites W2124241871 @default.
• W4308602217 cites W2124264259 @default.
• W4308602217 cites W2128308786 @default.
• W4308602217 cites W2129239924 @default.
• W4308602217 cites W2150254957 @default.
• W4308602217 cites W2157756192 @default.
• W4308602217 cites W2167635287 @default.
• W4308602217 cites W2173365514 @default.
• W4308602217 cites W2293117269 @default.
• W4308602217 cites W2337957959 @default.
• W4308602217 cites W2395380470 @default.
• W4308602217 cites W2513374539 @default.
• W4308602217 cites W2540148782 @default.
• W4308602217 cites W2567878436 @default.
• W4308602217 cites W2611880848 @default.
• W4308602217 cites W2752829367 @default.
• W4308602217 cites W2785597751 @default.
• W4308602217 cites W2790459263 @default.
• W4308602217 cites W2888803823 @default.
• W4308602217 cites W2911685442 @default.
• W4308602217 cites W2936286199 @default.
• W4308602217 cites W2944437260 @default.
• W4308602217 cites W2969008354 @default.
• W4308602217 cites W2969291025 @default.
• W4308602217 cites W2972418368 @default.
• W4308602217 cites W2999986446 @default.
• W4308602217 cites W3006290583 @default.
• W4308602217 cites W3008154734 @default.
• W4308602217 cites W3008928422 @default.
• W4308602217 cites W3023587277 @default.
• W4308602217 cites W3097986090 @default.
• W4308602217 cites W3098101279 @default.
• W4308602217 cites W3098287727 @default.
• W4308602217 cites W3099093368 @default.
• W4308602217 cites W3099342797 @default.
• W4308602217 cites W3099707486 @default.
• W4308602217 cites W3099797222 @default.
• W4308602217 cites W3100228619 @default.
• W4308602217 cites W3101052463 @default.
• W4308602217 cites W3101430041 @default.
• W4308602217 cites W3101584022 @default.
• W4308602217 cites W3101775371 @default.
• W4308602217 cites W3102094901 @default.
• W4308602217 cites W3102186960 @default.
• W4308602217 cites W3102369821 @default.
• W4308602217 cites W3102375666 @default.
• W4308602217 cites W3102452773 @default.
• W4308602217 cites W3102527484 @default.
• W4308602217 cites W3102950409 @default.
• W4308602217 cites W3103570811 @default.
• W4308602217 cites W3103579870 @default.
• W4308602217 cites W3103608279 @default.
• W4308602217 cites W3103641926 @default.
• W4308602217 cites W3103681034 @default.
• W4308602217 cites W3103707515 @default.
• W4308602217 cites W3103955028 @default.
• W4308602217 cites W3104393811 @default.
• W4308602217 cites W3104773051 @default.
• W4308602217 cites W3104821242 @default.
• W4308602217 cites W3104934869 @default.
• W4308602217 cites W3105016863 @default.
• W4308602217 cites W3106080585 @default.
• W4308602217 cites W3106329834 @default.
• W4308602217 cites W3106524653 @default.
• W4308602217 cites W3120759446 @default.
• W4308602217 cites W3125129989 @default.
• W4308602217 cites W3137311586 @default.
• W4308602217 cites W3199826048 @default.
• W4308602217 cites W3208610651 @default.
• W4308602217 cites W3209377790 @default.
• W4308602217 cites W3213072606 @default.

• next