Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100954679> ?p ?o ?g. }
- W3100954679 endingPage "97" @default.
- W3100954679 startingPage "97" @default.
- W3100954679 abstract "DH Tau b is a young planetary-mass companion orbiting at a projected separation of 320 AU from its $sim$2 Myr old host star DH Tau. With an estimated mass of $8-22$ $M_{rm{Jup}}$ this object straddles the deuterium-burning limit, and might have formed via core or pebble accretion, disk instability, or molecular cloud fragmentation. To shed light on the formation history of DH Tau b, we obtain the first measurement of rotational line broadening for this object using high-resolution (R $sim$25,000) near-infrared spectroscopy from Keck/NIRSPEC. We measure a projected rotational velocity ($v$sin$i$) of $9.6pm0.7$ km/s, corresponding to a rotation rate that is between 9-15% of DH Tau b's predicted break-up speed. This low rotation rate is in good agreement with scenarios in which magnetic coupling between the companion and its circumplanetary disk during the late stages of accretion reduces angular momentum and regulates spin. We compare the rotation rate of DH Tau b to published values for other planetary-mass objects with masses between $0.3-20$ $M_{rm{Jup}}$ and find no evidence of a correlation between mass and rotation rate in this mass regime. Finally, we search for evidence of individual molecules in DH Tau b's spectrum and find that it is dominated by CO and H$_2$O, with no evidence for the presence of CH$_4$. This agrees with expectations given DH Tau b's relatively high effective temperature ($sim$2300 K)." @default.
- W3100954679 created "2020-11-23" @default.
- W3100954679 creator A5005412720 @default.
- W3100954679 creator A5027949941 @default.
- W3100954679 creator A5037863643 @default.
- W3100954679 creator A5069239229 @default.
- W3100954679 creator A5070793994 @default.
- W3100954679 creator A5088469551 @default.
- W3100954679 date "2020-02-10" @default.
- W3100954679 modified "2023-10-16" @default.
- W3100954679 title "A Rotation Rate for the Planetary-mass Companion DH Tau b" @default.
- W3100954679 cites W1579923135 @default.
- W3100954679 cites W1966412445 @default.
- W3100954679 cites W1974490300 @default.
- W3100954679 cites W1983653531 @default.
- W3100954679 cites W1985663566 @default.
- W3100954679 cites W2002166777 @default.
- W3100954679 cites W2007134530 @default.
- W3100954679 cites W2008204335 @default.
- W3100954679 cites W2008733308 @default.
- W3100954679 cites W2016096905 @default.
- W3100954679 cites W2023574719 @default.
- W3100954679 cites W2024628329 @default.
- W3100954679 cites W2028553841 @default.
- W3100954679 cites W2029013794 @default.
- W3100954679 cites W2029037872 @default.
- W3100954679 cites W2045895264 @default.
- W3100954679 cites W2056299671 @default.
- W3100954679 cites W2059365121 @default.
- W3100954679 cites W2066772989 @default.
- W3100954679 cites W2068309608 @default.
- W3100954679 cites W2074648364 @default.
- W3100954679 cites W2078720990 @default.
- W3100954679 cites W2079884469 @default.
- W3100954679 cites W2084110269 @default.
- W3100954679 cites W2085383865 @default.
- W3100954679 cites W2087569457 @default.
- W3100954679 cites W2088330484 @default.
- W3100954679 cites W2090574813 @default.
- W3100954679 cites W2091200716 @default.
- W3100954679 cites W2095455888 @default.
- W3100954679 cites W2113912459 @default.
- W3100954679 cites W2118109196 @default.
- W3100954679 cites W2119900715 @default.
- W3100954679 cites W2140611633 @default.
- W3100954679 cites W2142228699 @default.
- W3100954679 cites W2147753966 @default.
- W3100954679 cites W2147833580 @default.
- W3100954679 cites W2148927940 @default.
- W3100954679 cites W2151361827 @default.
- W3100954679 cites W2154909368 @default.
- W3100954679 cites W2157805129 @default.
- W3100954679 cites W2170487617 @default.
- W3100954679 cites W2261573924 @default.
- W3100954679 cites W2471941619 @default.
- W3100954679 cites W2527911398 @default.
- W3100954679 cites W2557647423 @default.
- W3100954679 cites W2574125449 @default.
- W3100954679 cites W2766080224 @default.
- W3100954679 cites W2784828947 @default.
- W3100954679 cites W2806230021 @default.
- W3100954679 cites W2885087496 @default.
- W3100954679 cites W2887274682 @default.
- W3100954679 cites W2939399083 @default.
- W3100954679 cites W2956125051 @default.
- W3100954679 cites W2963421348 @default.
- W3100954679 cites W2963867917 @default.
- W3100954679 cites W2969289116 @default.
- W3100954679 cites W2991281494 @default.
- W3100954679 cites W3098223628 @default.
- W3100954679 cites W3098231028 @default.
- W3100954679 cites W3098256914 @default.
- W3100954679 cites W3099133230 @default.
- W3100954679 cites W3099700036 @default.
- W3100954679 cites W3099926194 @default.
- W3100954679 cites W3099953821 @default.
- W3100954679 cites W3099963724 @default.
- W3100954679 cites W3100418707 @default.
- W3100954679 cites W3100421974 @default.
- W3100954679 cites W3100605991 @default.
- W3100954679 cites W3100767436 @default.
- W3100954679 cites W3100825473 @default.
- W3100954679 cites W3101077689 @default.
- W3100954679 cites W3101080829 @default.
- W3100954679 cites W3101255618 @default.
- W3100954679 cites W3101271011 @default.
- W3100954679 cites W3101298061 @default.
- W3100954679 cites W3101981644 @default.
- W3100954679 cites W3101994696 @default.
- W3100954679 cites W3102014803 @default.
- W3100954679 cites W3102094901 @default.
- W3100954679 cites W3102131333 @default.
- W3100954679 cites W3102710227 @default.
- W3100954679 cites W3102930839 @default.
- W3100954679 cites W3102938219 @default.
- W3100954679 cites W3102966180 @default.
- W3100954679 cites W3103923987 @default.
- W3100954679 cites W3104273350 @default.