ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e
We present Rossiter-McLaughlin observations of the transiting super-Earth 55 Cnc e collected during six transit events between 2012 January and 2013 November with HARPS and HARPS-N. We detect no radial velocity signal above 35 cm s–1 (3σ) and confine the stellar v sin i [subscript *] to 0.2 ± 0.5 km...
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| Format: | Article |
| Language: | en_US |
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Institute of Physics/American Astronomical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/93251 https://orcid.org/0000-0002-5510-8751 |
| _version_ | 1826211940783882240 |
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| author | Lopez-Morales, Mercedes Triaud, Amaury Rodler, Florian Dumusque, Xavier Buchhave, Lars A. Harutyunyan, Avet Hoyer, Sergio Alonso, Roi Gillon, M. Kaib, Nathan A. Latham, David W. Lovis, Christophe Pepe, Francesco Queloz, Didier Raymond, Sean N. Ségransan, Damien Waldmann, Ingo P. Udry, Stéphane |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Lopez-Morales, Mercedes Triaud, Amaury Rodler, Florian Dumusque, Xavier Buchhave, Lars A. Harutyunyan, Avet Hoyer, Sergio Alonso, Roi Gillon, M. Kaib, Nathan A. Latham, David W. Lovis, Christophe Pepe, Francesco Queloz, Didier Raymond, Sean N. Ségransan, Damien Waldmann, Ingo P. Udry, Stéphane |
| author_sort | Lopez-Morales, Mercedes |
| collection | MIT |
| description | We present Rossiter-McLaughlin observations of the transiting super-Earth 55 Cnc e collected during six transit events between 2012 January and 2013 November with HARPS and HARPS-N. We detect no radial velocity signal above 35 cm s–1 (3σ) and confine the stellar v sin i [subscript *] to 0.2 ± 0.5 km s–1. The star appears to be a very slow rotator, producing a very low amplitude Rossiter-McLaughlin effect. Given such a low amplitude, the Rossiter-McLaughlin effect of 55 Cnc e is undetected in our data, and any spin-orbit angle of the system remains possible. We also performed Doppler tomography and reach a similar conclusion. Our results offer a glimpse of the capacity of future instrumentation to study low amplitude Rossiter-McLaughlin effects produced by super-Earths. |
| first_indexed | 2024-09-23T15:13:49Z |
| format | Article |
| id | mit-1721.1/93251 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:13:49Z |
| publishDate | 2015 |
| publisher | Institute of Physics/American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/932512022-09-29T13:29:53Z ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e Lopez-Morales, Mercedes Triaud, Amaury Rodler, Florian Dumusque, Xavier Buchhave, Lars A. Harutyunyan, Avet Hoyer, Sergio Alonso, Roi Gillon, M. Kaib, Nathan A. Latham, David W. Lovis, Christophe Pepe, Francesco Queloz, Didier Raymond, Sean N. Ségransan, Damien Waldmann, Ingo P. Udry, Stéphane Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Triaud, Amaury We present Rossiter-McLaughlin observations of the transiting super-Earth 55 Cnc e collected during six transit events between 2012 January and 2013 November with HARPS and HARPS-N. We detect no radial velocity signal above 35 cm s–1 (3σ) and confine the stellar v sin i [subscript *] to 0.2 ± 0.5 km s–1. The star appears to be a very slow rotator, producing a very low amplitude Rossiter-McLaughlin effect. Given such a low amplitude, the Rossiter-McLaughlin effect of 55 Cnc e is undetected in our data, and any spin-orbit angle of the system remains possible. We also performed Doppler tomography and reach a similar conclusion. Our results offer a glimpse of the capacity of future instrumentation to study low amplitude Rossiter-McLaughlin effects produced by super-Earths. Templeton Foundation European Union (7th Framework Programme, (FP7 / 2007-2013), grant agreement 313014 (ETAEARTH) Swiss National Science Foundation (Fellow, grant number P300P2-147773) Alexander von Humboldt-Stiftung (Humboldt postdoctoral fellowship) Swiss National Science Foundation (Swiss Na- tional Science Foundation (SNSF Early Postdoc Mobility fellowship) Spain. Ministerio de Economía y Competitividad (2011 Severo Ochoa Program MINECO SEV-2011- 0187) 2015-01-30T21:00:09Z 2015-01-30T21:00:09Z 2014-08 2014-06 Article http://purl.org/eprint/type/JournalArticle 2041-8213 http://hdl.handle.net/1721.1/93251 López-Morales, Mercedes, Amaury H. M. J. Triaud, Florian Rodler, Xavier Dumusque, Lars A. Buchhave, Avet Harutyunyan, Sergio Hoyer, et al. “ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e.” The Astrophysical Journal 792, no. 2 (August 25, 2014): L31. © 2014 American Astronomical Society. https://orcid.org/0000-0002-5510-8751 en_US http://dx.doi.org/10.1088/2041-8205/792/2/l31 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 Institute of Physics/American Astronomical Society American Astronomical Society |
| spellingShingle | Lopez-Morales, Mercedes Triaud, Amaury Rodler, Florian Dumusque, Xavier Buchhave, Lars A. Harutyunyan, Avet Hoyer, Sergio Alonso, Roi Gillon, M. Kaib, Nathan A. Latham, David W. Lovis, Christophe Pepe, Francesco Queloz, Didier Raymond, Sean N. Ségransan, Damien Waldmann, Ingo P. Udry, Stéphane ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e |
| title | ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e |
| title_full | ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e |
| title_fullStr | ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e |
| title_full_unstemmed | ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e |
| title_short | ROSSITER-MCLAUGHLIN OBSERVATIONS OF 55 Cnc e |
| title_sort | rossiter mclaughlin observations of 55 cnc e |
| url | http://hdl.handle.net/1721.1/93251 https://orcid.org/0000-0002-5510-8751 |
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