The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere
We present an investigation of the transmission spectrum of the 6.5 M [subscript ⊕] planet GJ 1214b based on new ground-based observations of transits of the planet in the optical and near-infrared, and on previously published data. Observations with the VLT + FORS and Magellan + MMIRS using the tec...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2012
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| Online Access: | http://hdl.handle.net/1721.1/74177 https://orcid.org/0000-0002-6892-6948 |
| _version_ | 1826191347159138304 |
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| author | Bean, Jacob L. Desert, Jean-Michel Kabath, Petr Stalder, Brian Seager, Sara Kempton, Eliza Miller-Ricci Berta-Thompson, Zach Homeier, Derek Walsh, Shane Seifahrt, Andreas |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Bean, Jacob L. Desert, Jean-Michel Kabath, Petr Stalder, Brian Seager, Sara Kempton, Eliza Miller-Ricci Berta-Thompson, Zach Homeier, Derek Walsh, Shane Seifahrt, Andreas |
| author_sort | Bean, Jacob L. |
| collection | MIT |
| description | We present an investigation of the transmission spectrum of the 6.5 M [subscript ⊕] planet GJ 1214b based on new ground-based observations of transits of the planet in the optical and near-infrared, and on previously published data. Observations with the VLT + FORS and Magellan + MMIRS using the technique of multi-object spectroscopy with wide slits yielded new measurements of the planet's transmission spectrum from 0.61 to 0.85 μm, and in the J, H, and K atmospheric windows. We also present a new measurement based on narrow-band photometry centered at 2.09 μm with the VLT + HAWKI. We combined these data with results from a reanalysis of previously published FORS data from 0.78 to 1.00 μm using an improved data reduction algorithm, and previously reported values based on Spitzer data at 3.6 and 4.5 μm. All of the data are consistent with a featureless transmission spectrum for the planet. Our K-band data are inconsistent with the detection of spectral features at these wavelengths reported by Croll and collaborators at the level of 4.1σ. The planet's atmosphere must either have at least 70% H[subscript 2]O by mass or optically thick high-altitude clouds or haze to be consistent with the data. |
| first_indexed | 2024-09-23T08:54:30Z |
| format | Article |
| id | mit-1721.1/74177 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:54:30Z |
| publishDate | 2012 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/741772022-09-26T09:05:07Z The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere Bean, Jacob L. Desert, Jean-Michel Kabath, Petr Stalder, Brian Seager, Sara Kempton, Eliza Miller-Ricci Berta-Thompson, Zach Homeier, Derek Walsh, Shane Seifahrt, Andreas Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Seager, Sara We present an investigation of the transmission spectrum of the 6.5 M [subscript ⊕] planet GJ 1214b based on new ground-based observations of transits of the planet in the optical and near-infrared, and on previously published data. Observations with the VLT + FORS and Magellan + MMIRS using the technique of multi-object spectroscopy with wide slits yielded new measurements of the planet's transmission spectrum from 0.61 to 0.85 μm, and in the J, H, and K atmospheric windows. We also present a new measurement based on narrow-band photometry centered at 2.09 μm with the VLT + HAWKI. We combined these data with results from a reanalysis of previously published FORS data from 0.78 to 1.00 μm using an improved data reduction algorithm, and previously reported values based on Spitzer data at 3.6 and 4.5 μm. All of the data are consistent with a featureless transmission spectrum for the planet. Our K-band data are inconsistent with the detection of spectral features at these wavelengths reported by Croll and collaborators at the level of 4.1σ. The planet's atmosphere must either have at least 70% H[subscript 2]O by mass or optically thick high-altitude clouds or haze to be consistent with the data. 2012-10-22T14:31:24Z 2012-10-22T14:31:24Z 2011-11 2011-09 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/74177 Bean, Jacob L. et al. “THE OPTICAL AND NEAR-INFRARED TRANSMISSION SPECTRUM OF THE SUPER-EARTH GJ 1214b: FURTHER EVIDENCE FOR A METAL-RICH ATMOSPHERE.” The Astrophysical Journal 743.1 (2011): 92. © 2011 IOP Publishing https://orcid.org/0000-0002-6892-6948 en_US http://dx.doi.org/10.1088/0004-637x/743/1/92 Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing IOP |
| spellingShingle | Bean, Jacob L. Desert, Jean-Michel Kabath, Petr Stalder, Brian Seager, Sara Kempton, Eliza Miller-Ricci Berta-Thompson, Zach Homeier, Derek Walsh, Shane Seifahrt, Andreas The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere |
| title | The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere |
| title_full | The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere |
| title_fullStr | The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere |
| title_full_unstemmed | The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere |
| title_short | The Optical and near-Infrared Transmission Spectrum of the Super-Earth Gj1214b: Further Evidence for a Metal-Rich Atmosphere |
| title_sort | optical and near infrared transmission spectrum of the super earth gj1214b further evidence for a metal rich atmosphere |
| url | http://hdl.handle.net/1721.1/74177 https://orcid.org/0000-0002-6892-6948 |
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