MOPSS. I. Flat Optical Spectra for the Hot Jupiters WASP-4 b and WASP-52b
We present the first results from MOPSS, The Michigan Optical Planetary Spectra Survey, aimed at creating a database of optical planetary transmission spectra all observed, reduced, and analyzed with a uniform method for the benefit of enabling comparative exoplanet studies. We discuss our methods,...
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| Veröffentlicht in: | The Astronomical journal 2018-09, Vol.156 (3), p.122 |
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| container_title | The Astronomical journal |
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| creator | May, E. M. Zhao, M. Haidar, M. Rauscher, E. Monnier, J. D. |
| description | We present the first results from MOPSS, The Michigan Optical Planetary Spectra Survey, aimed at creating a database of optical planetary transmission spectra all observed, reduced, and analyzed with a uniform method for the benefit of enabling comparative exoplanet studies. We discuss our methods, and present results for our first two targets observed with the Magellan Baade 6.5 m telescope, one transit of the Hot Jupiter WASP-4b and two transits of the Hot Saturn WASP-52b. Both targets present flat, featureless spectra, corresponding to the presence of aerosols. We find that the cloud decks must begin no lower than 10−4 bar for both planets. For WASP-52b, we also consider the effects of star spots on the transmission spectrum, including unocculted spots and spots on the stellar limb influencing the light curve limb-darkening parameters. We discuss the usefulness of this program in the coming James Webb Space Telescope era. |
| doi_str_mv | 10.3847/1538-3881/aad4a8 |
| format | Article |
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We find that the cloud decks must begin no lower than 10−4 bar for both planets. For WASP-52b, we also consider the effects of star spots on the transmission spectrum, including unocculted spots and spots on the stellar limb influencing the light curve limb-darkening parameters. 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M.</creatorcontrib><creatorcontrib>Zhao, M.</creatorcontrib><creatorcontrib>Haidar, M.</creatorcontrib><creatorcontrib>Rauscher, E.</creatorcontrib><creatorcontrib>Monnier, J. D.</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>The Astronomical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>May, E. M.</au><au>Zhao, M.</au><au>Haidar, M.</au><au>Rauscher, E.</au><au>Monnier, J. D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MOPSS. I. Flat Optical Spectra for the Hot Jupiters WASP-4 b and WASP-52b</atitle><jtitle>The Astronomical journal</jtitle><stitle>AJ</stitle><addtitle>Astron. J</addtitle><date>2018-09-01</date><risdate>2018</risdate><volume>156</volume><issue>3</issue><spage>122</spage><pages>122-</pages><issn>0004-6256</issn><eissn>1538-3881</eissn><abstract>We present the first results from MOPSS, The Michigan Optical Planetary Spectra Survey, aimed at creating a database of optical planetary transmission spectra all observed, reduced, and analyzed with a uniform method for the benefit of enabling comparative exoplanet studies. We discuss our methods, and present results for our first two targets observed with the Magellan Baade 6.5 m telescope, one transit of the Hot Jupiter WASP-4b and two transits of the Hot Saturn WASP-52b. Both targets present flat, featureless spectra, corresponding to the presence of aerosols. We find that the cloud decks must begin no lower than 10−4 bar for both planets. 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| subjects | Astronomy Darkening Extrasolar planets Gas giant planets James Webb Space Telescope Jupiter Light curve planets and satellites: atmospheres planets and satellites: composition planets and satellites: gaseous planets planets and satellites: individual (WASP-52b, WASP-4b) Space telescopes Spectra starspots Transits |
| title | MOPSS. I. Flat Optical Spectra for the Hot Jupiters WASP-4 b and WASP-52b |
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