FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3159163934> ?p ?o ?g. }

• W3159163934 endingPage "A172" @default.
• W3159163934 startingPage "A172" @default.
• W3159163934 abstract "Establishing the origin of the water D/H ratio in the Solar System is central to our understanding of the chemical trail of water during the star and planet formation process. Recent modeling suggests that comparisons of the D$_2$O/HDO and HDO/H$_2$O ratios are a powerful way to trace the chemical evolution of water and, in particular, determine whether the D/H ratio is inherited from the molecular cloud or established locally. We seek to determine the D$_2$O column density and derive the D$_2$O/HDO ratios in the warm region toward the low-mass Class 0 sources B335 and L483. The results are compared with astrochemical models and previous observations to determine their implications for the chemical evolution of water. We present ALMA observations of the D$_2$O transition at 316.8 GHz toward B335 and L483 at $<$0.5 ($<$ 100 au) resolution, probing the inner warm envelope gas. The column densities of D$_2$O, HDO, and H$_{2}^{18}$O are determined by synthetic spectrum modeling and direct Gaussian fitting, under the assumption of a single excitation temperature and similar spatial extent for the three water isotopologs. D$_2$O is detected toward both sources in the inner warm envelope. The derived D$_2$O/HDO ratios is $(1.0pm0.2)times10^{-2}$ for L483 and $(1.4pm0.1)times10^{-2}$ for B335. The high D$_2$O/HDO ratios are a strong indication of chemical inheritance of water from the prestellar phase down to the inner warm envelope. This implies that the local cloud conditions in the prestellar phase, such as temperatures and timescales, determine the water chemistry at later stages and could provide a source of chemical differentiation in young systems. In addition, the observed D$_2$O/H$_2$O ratios support an observed dichotomy in the deuterium fractionation of water toward isolated and clustered protostars, namely, a higher D/H ratio toward isolated sources" @default.
• W3159163934 created "2021-05-10" @default.
• W3159163934 creator A5013404053 @default.
• W3159163934 creator A5016952427 @default.
• W3159163934 creator A5022579238 @default.
• W3159163934 creator A5048537056 @default.
• W3159163934 creator A5049901895 @default.
• W3159163934 creator A5068530877 @default.
• W3159163934 creator A5077409342 @default.
• W3159163934 creator A5091740772 @default.
• W3159163934 date "2021-06-01" @default.
• W3159163934 modified "2023-10-02" @default.
• W3159163934 title "ALMA observations of doubly deuterated water: inheritance of water from the prestellar environment" @default.
• W3159163934 cites W1989955649 @default.
• W3159163934 cites W2000624815 @default.
• W3159163934 cites W2009333996 @default.
• W3159163934 cites W2011301426 @default.
• W3159163934 cites W2024039618 @default.
• W3159163934 cites W2031706302 @default.
• W3159163934 cites W2033725176 @default.
• W3159163934 cites W2051747655 @default.
• W3159163934 cites W2053498244 @default.
• W3159163934 cites W2055208066 @default.
• W3159163934 cites W2066699723 @default.
• W3159163934 cites W2072125203 @default.
• W3159163934 cites W2079412086 @default.
• W3159163934 cites W2081745671 @default.
• W3159163934 cites W2095900042 @default.
• W3159163934 cites W2104382780 @default.
• W3159163934 cites W2104741799 @default.
• W3159163934 cites W2106694690 @default.
• W3159163934 cites W2125369537 @default.
• W3159163934 cites W2128581012 @default.
• W3159163934 cites W2129395676 @default.
• W3159163934 cites W2133991519 @default.
• W3159163934 cites W2141099472 @default.
• W3159163934 cites W2157248324 @default.
• W3159163934 cites W2163613589 @default.
• W3159163934 cites W2290420081 @default.
• W3159163934 cites W2529180156 @default.
• W3159163934 cites W2545781248 @default.
• W3159163934 cites W2757878606 @default.
• W3159163934 cites W2804872128 @default.
• W3159163934 cites W2888280926 @default.
• W3159163934 cites W2889779774 @default.
• W3159163934 cites W2898332264 @default.
• W3159163934 cites W2921657614 @default.
• W3159163934 cites W2952210053 @default.
• W3159163934 cites W2971379903 @default.
• W3159163934 cites W2988904518 @default.
• W3159163934 cites W3000746797 @default.
• W3159163934 cites W3006987105 @default.
• W3159163934 cites W3092353545 @default.
• W3159163934 cites W3096414269 @default.
• W3159163934 cites W3099394683 @default.
• W3159163934 cites W3099697263 @default.
• W3159163934 cites W3099714297 @default.
• W3159163934 cites W3100009625 @default.
• W3159163934 cites W3101060846 @default.
• W3159163934 cites W3101272537 @default.
• W3159163934 cites W3101306770 @default.
• W3159163934 cites W3101496023 @default.
• W3159163934 cites W3101527311 @default.
• W3159163934 cites W3101622394 @default.
• W3159163934 cites W3102060884 @default.
• W3159163934 cites W3103073293 @default.
• W3159163934 cites W3103117039 @default.
• W3159163934 cites W3103145119 @default.
• W3159163934 cites W3103385539 @default.
• W3159163934 cites W3103544413 @default.
• W3159163934 cites W3104807711 @default.
• W3159163934 cites W3106529127 @default.
• W3159163934 cites W3120759446 @default.
• W3159163934 cites W3122140081 @default.
• W3159163934 cites W3123607396 @default.
• W3159163934 cites W3137817181 @default.
• W3159163934 doi "https://doi.org/10.1051/0004-6361/202140560" @default.
• W3159163934 hasPublicationYear "2021" @default.
• W3159163934 type Work @default.
• W3159163934 sameAs 3159163934 @default.
• W3159163934 citedByCount "20" @default.
• W3159163934 countsByYear W31591639342021 @default.
• W3159163934 countsByYear W31591639342022 @default.
• W3159163934 countsByYear W31591639342023 @default.
• W3159163934 crossrefType "journal-article" @default.
• W3159163934 hasAuthorship W3159163934A5013404053 @default.
• W3159163934 hasAuthorship W3159163934A5016952427 @default.
• W3159163934 hasAuthorship W3159163934A5022579238 @default.
• W3159163934 hasAuthorship W3159163934A5048537056 @default.
• W3159163934 hasAuthorship W3159163934A5049901895 @default.
• W3159163934 hasAuthorship W3159163934A5068530877 @default.
• W3159163934 hasAuthorship W3159163934A5077409342 @default.
• W3159163934 hasAuthorship W3159163934A5091740772 @default.
• W3159163934 hasBestOaLocation W31591639341 @default.
• W3159163934 hasConcept C121332964 @default.
• W3159163934 hasConcept C150846664 @default.
• W3159163934 hasConcept C180920033 @default.
• W3159163934 hasConcept C184779094 @default.

• next