Matches in SemOpenAlex for { <https://semopenalex.org/work/W3103859819> ?p ?o ?g. }
- W3103859819 endingPage "101" @default.
- W3103859819 startingPage "101" @default.
- W3103859819 abstract "The nearby super-Earth 55 Cnc e orbits a bright (V = 5.95 mag) star with a period of ∼18 hr and a mass of ∼8M⊕. Its atmosphere may be water-rich and have a large-scale height; though, attempts to characterize it have yielded ambiguous results. Here we present a sensitive search for water and TiO in its atmosphere at high spectral resolution using the Gemini North telescope and the GRACES spectrograph. We combine observations with previous observations from Subaru and CFHT, improving the constraints on the presence of water vapor. We adopt parametric models with an updated planet radius based on recent measurements, and use a cross-correlation technique to maximize sensitivity. Our results are consistent with atmospheres that are cloudy or contain minimal amounts of water and TiO. Using these parametric models, we rule out a water-rich atmosphere (VMR 0.1%) with a mean molecular weight of 15 g mol−1 at a 3σ confidence level, improving on the previous limit by a significant margin. For TiO, we rule out a mean molecular weight of 5 g mol−1 with a 3σ confidence level for a VMR greater than 10−8; for a VMR of greater than 10−7, the limit rises to a mean molecular weight of 10 g mol−1. We can rule out low mean-molecular-weight chemical equilibrium models both including and excluding TiO/VO at very high confidence levels (>10σ). Overall, our results are consistent with an atmosphere with a high mean molecular weight and/or clouds, or no atmosphere." @default.
- W3103859819 created "2020-11-23" @default.
- W3103859819 creator A5025584661 @default.
- W3103859819 creator A5025947605 @default.
- W3103859819 creator A5031499581 @default.
- W3103859819 creator A5051291271 @default.
- W3103859819 creator A5054847338 @default.
- W3103859819 creator A5063050804 @default.
- W3103859819 creator A5069239229 @default.
- W3103859819 creator A5072838498 @default.
- W3103859819 creator A5085364042 @default.
- W3103859819 date "2020-08-06" @default.
- W3103859819 modified "2023-10-17" @default.
- W3103859819 title "Characterization of the Atmosphere of Super-Earth 55 Cancri e Using High-resolution Ground-based Spectroscopy" @default.
- W3103859819 cites W1563362314 @default.
- W3103859819 cites W1965176092 @default.
- W3103859819 cites W1977634957 @default.
- W3103859819 cites W1978981503 @default.
- W3103859819 cites W1990066366 @default.
- W3103859819 cites W1997043944 @default.
- W3103859819 cites W1997340896 @default.
- W3103859819 cites W2003955617 @default.
- W3103859819 cites W2004437096 @default.
- W3103859819 cites W2009019092 @default.
- W3103859819 cites W2016692963 @default.
- W3103859819 cites W2029640176 @default.
- W3103859819 cites W2031887605 @default.
- W3103859819 cites W2032885475 @default.
- W3103859819 cites W2036953117 @default.
- W3103859819 cites W2052979728 @default.
- W3103859819 cites W2059746706 @default.
- W3103859819 cites W2060319444 @default.
- W3103859819 cites W2067577479 @default.
- W3103859819 cites W2075192668 @default.
- W3103859819 cites W2092477793 @default.
- W3103859819 cites W2096611733 @default.
- W3103859819 cites W2111640501 @default.
- W3103859819 cites W2114592647 @default.
- W3103859819 cites W2125732909 @default.
- W3103859819 cites W2126858388 @default.
- W3103859819 cites W2131440349 @default.
- W3103859819 cites W2136061643 @default.
- W3103859819 cites W2141599824 @default.
- W3103859819 cites W2153730875 @default.
- W3103859819 cites W2153907585 @default.
- W3103859819 cites W2167076951 @default.
- W3103859819 cites W2170742148 @default.
- W3103859819 cites W2320757714 @default.
- W3103859819 cites W2331010765 @default.
- W3103859819 cites W2460693264 @default.
- W3103859819 cites W2507470918 @default.
- W3103859819 cites W2606686133 @default.
- W3103859819 cites W2695271317 @default.
- W3103859819 cites W2763630815 @default.
- W3103859819 cites W2803691203 @default.
- W3103859819 cites W2857876088 @default.
- W3103859819 cites W2905464296 @default.
- W3103859819 cites W2953656882 @default.
- W3103859819 cites W2963024655 @default.
- W3103859819 cites W2995446469 @default.
- W3103859819 cites W3098036763 @default.
- W3103859819 cites W3098392355 @default.
- W3103859819 cites W3098414160 @default.
- W3103859819 cites W3098917409 @default.
- W3103859819 cites W3099098958 @default.
- W3103859819 cites W3100402233 @default.
- W3103859819 cites W3100569454 @default.
- W3103859819 cites W3100756829 @default.
- W3103859819 cites W3101592024 @default.
- W3103859819 cites W3101980161 @default.
- W3103859819 cites W3102037473 @default.
- W3103859819 cites W3102850383 @default.
- W3103859819 cites W3103472511 @default.
- W3103859819 cites W3103672236 @default.
- W3103859819 cites W3103887472 @default.
- W3103859819 cites W3104410220 @default.
- W3103859819 cites W3104429268 @default.
- W3103859819 cites W3104637057 @default.
- W3103859819 cites W3104703133 @default.
- W3103859819 cites W3105034142 @default.
- W3103859819 cites W3105851181 @default.
- W3103859819 cites W3106478367 @default.
- W3103859819 cites W3121752562 @default.
- W3103859819 cites W3122409757 @default.
- W3103859819 cites W3123818343 @default.
- W3103859819 cites W4301953674 @default.
- W3103859819 doi "https://doi.org/10.3847/1538-3881/aba1eb" @default.
- W3103859819 hasPublicationYear "2020" @default.
- W3103859819 type Work @default.
- W3103859819 sameAs 3103859819 @default.
- W3103859819 citedByCount "23" @default.
- W3103859819 countsByYear W31038598192020 @default.
- W3103859819 countsByYear W31038598192021 @default.
- W3103859819 countsByYear W31038598192022 @default.
- W3103859819 countsByYear W31038598192023 @default.
- W3103859819 crossrefType "journal-article" @default.
- W3103859819 hasAuthorship W3103859819A5025584661 @default.
- W3103859819 hasAuthorship W3103859819A5025947605 @default.