Academic literature on the topic 'WASP-17b'

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Journal articles on the topic "WASP-17b"

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Wood, Patricia L., and Pierre F. L. Maxted. "Transmission spectroscopy of the sodium doublet in WASP-17b with the VLT." Proceedings of the International Astronomical Union 6, S276 (2010): 491–92. http://dx.doi.org/10.1017/s174392131102093x.

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AbstractThe detection of sodium absorption during primary transit implies the presence of an atmosphere around an extrasolar planet. WASP-17b (Anderson et al. 2010a) is the least dense known planet, with a radius twice that of Jupiter. It orbits an F6-type star, and its low gravity gives its atmosphere a very large scale height. The sodium transit depth is expected to be 4.1 – 5.2 times deeper than for HD 209458b (Seager & Sasselov 2000). We obtained 24 spectra with the GIRAFFE spectrograph on the VLT, 8 during transit. We measured the flux in the sodium doublet at 5889.95 Å and 5895.92 Å
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Zhou, G., and D. D. R. Bayliss. "Detection of sodium absorption in WASP-17b with Magellan." Monthly Notices of the Royal Astronomical Society 426, no. 3 (2012): 2483–88. http://dx.doi.org/10.1111/j.1365-2966.2012.21817.x.

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Bayliss, Daniel D. R., Joshua N. Winn, Rosemary A. Mardling, and Penny D. Sackett. "CONFIRMATION OF A RETROGRADE ORBIT FOR EXOPLANET WASP-17b." Astrophysical Journal 722, no. 2 (2010): L224—L227. http://dx.doi.org/10.1088/2041-8205/722/2/l224.

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Khalafinejad, Sara, Michael Salz, Patricio E. Cubillos, et al. "The atmosphere of WASP-17b: Optical high-resolution transmission spectroscopy." Astronomy & Astrophysics 618 (October 2018): A98. http://dx.doi.org/10.1051/0004-6361/201732029.

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High-resolution transmission spectroscopy is a method for understanding the chemical and physical properties of upper exoplanetary atmospheres. Due to large absorption cross-sections, resonance lines of atomic sodium D-lines (at 5889.95 and 5895.92 Å) produce large transmission signals. Our aim is to unveil the physical properties of WASP-17b through an accurate measurement of the sodium absorption in the transmission spectrum. We analyze 37 high-resolution spectra observed during a single transit of WASP-17b with the MIKE instrument on the 6.5 m Magellan Telescopes. We exclude stellar flaring
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Bento, J., P. J. Wheatley, C. M. Copperwheat, et al. "Optical transmission photometry of the highly inflated exoplanet WASP-17b★." Monthly Notices of the Royal Astronomical Society 437, no. 2 (2013): 1511–18. http://dx.doi.org/10.1093/mnras/stt1979.

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Nortmann, Lisa, Stefan Dreizler, and Jacob Bean. "On the Current State of Ground-based Transmission Spectroscopy of Planet Atmospheres." Proceedings of the International Astronomical Union 8, S293 (2012): 315–18. http://dx.doi.org/10.1017/s1743921313013069.

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AbstractIn response to the large number of exoplanet detections, the characterization of these planets has become a major focus of exoplanet science. Transiting planets are of particular interest as they allow us to investigate the transmission of their atmospheres. Our group uses ground-based facilities like the ESO/VLT to probe the atmosphere of hot Jupiters with the technique of spectrophotometry. In our preliminary results for the hot Jupiters WASP-17b and WASP-31b we find the reachable precision to be limited by instrumental systematic noise rather than photon noise. We discuss the source
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Anderson, D. R., C. Hellier, M. Gillon, et al. "WASP-17b: AN ULTRA-LOW DENSITY PLANET IN A PROBABLE RETROGRADE ORBIT." Astrophysical Journal 709, no. 1 (2009): 159–67. http://dx.doi.org/10.1088/0004-637x/709/1/159.

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Wood, P. L., P. F. L. Maxted, B. Smalley, and N. Iro. "Transmission spectroscopy of the sodium ‘D’ doublet in WASP-17b with the VLT★." Monthly Notices of the Royal Astronomical Society 412, no. 4 (2011): 2376–82. http://dx.doi.org/10.1111/j.1365-2966.2010.18061.x.

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Sokov, E. N. "WASP-17b - possibly the first moving away from parent star exoplanet. International campaign on its observations." Journal of Physics: Conference Series 769 (November 2016): 012012. http://dx.doi.org/10.1088/1742-6596/769/1/012012.

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Goyal, Jayesh M., Nathan Mayne, Benjamin Drummond, et al. "A library of self-consistent simulated exoplanet atmospheres." Monthly Notices of the Royal Astronomical Society 498, no. 4 (2020): 4680–704. http://dx.doi.org/10.1093/mnras/staa2300.

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ABSTRACT We present a publicly available library of model atmospheres with radiative-convective equilibrium pressure–temperature (P-T) profiles fully consistent with equilibrium chemical abundances, and the corresponding emission and transmission spectrum with R ∼ 5000 at 0.2 µm decreasing to R ∼ 35 at 30 µm, for 89 hot Jupiter exoplanets, for four recirculation factors, six metallicities, and six C/O ratios. We find the choice of condensation process (local/rainout) alters the P-T profile and thereby the spectrum substantially, potentially detectable by James Webb Space Telescope. We find H−
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Dissertations / Theses on the topic "WASP-17b"

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Nortmann, Lisa. "Transmission spectra of highly irradiated extrasolar planet atmospheres." Doctoral thesis, 2015. http://hdl.handle.net/11858/00-1735-0000-002B-7CA1-8.

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