Rossiter-McLaughlin observations of 55 Cnc e

Mercedes Lopez-Morales; Amaury H. M. J. Triaud; Florian Rodler; Xavier Dumusque; Lars A. Buchhave; Avet Harutyunyan; Sergio Hoyer; Roi Alonso; Michael Gillon; Nathan A. Kaib; David. W. Latham; Christophe Lovis; Francesco Pepe; Didier Queloz; Sean N. Raymond; Damien Segransan; Ingo P. Waldmann; Stephane Udry

doi:10.1088/2041-8205/792/2/L31

Rossiter-McLaughlin observations of 55 Cnc e

Mercedes Lopez-Morales, Amaury H. M. J. Triaud, Florian Rodler, Xavier Dumusque, Lars A. Buchhave, Avet Harutyunyan, Sergio Hoyer, Roi Alonso, Michael Gillon, Nathan A. Kaib, David. W. Latham, Christophe Lovis, Francesco Pepe, Didier Queloz, Sean N. Raymond, Damien Segransan, Ingo P. Waldmann, Stephane Udry

25 Citations (Scopus)

Abstract

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 s 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.

Original language	English
Article number	L31
Journal	The Astrophysical Journal Letters
Volume	792
Issue number	2
ISSN	2041-8205
DOIs	https://doi.org/10.1088/2041-8205/792/2/L31
Publication status	Published - 10 Sept 2014

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Lopez-Morales, M., Triaud, A. H. M. J., Rodler, F., Dumusque, X., Buchhave, L. A., Harutyunyan, A., Hoyer, S., Alonso, R., Gillon, M., Kaib, N. A., Latham, D. W., Lovis, C., Pepe, F., Queloz, D., Raymond, S. N., Segransan, D., Waldmann, I. P., & Udry, S. (2014). Rossiter-McLaughlin observations of 55 Cnc e. The Astrophysical Journal Letters, 792(2), [L31]. https://doi.org/10.1088/2041-8205/792/2/L31

Lopez-Morales, M, Triaud, AHMJ, Rodler, F, Dumusque, X, Buchhave, LA, Harutyunyan, A, Hoyer, S, Alonso, R, Gillon, M, Kaib, NA, Latham, DW, Lovis, C, Pepe, F, Queloz, D, Raymond, SN, Segransan, D, Waldmann, IP & Udry, S 2014, 'Rossiter-McLaughlin observations of 55 Cnc e', The Astrophysical Journal Letters, vol. 792, no. 2, L31. https://doi.org/10.1088/2041-8205/792/2/L31

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title = "Rossiter-McLaughlin observations of 55 Cnc e",

abstract = "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 s 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.",

author = "Mercedes Lopez-Morales and Triaud, {Amaury H. M. J.} and Florian Rodler and Xavier Dumusque and Buchhave, {Lars A.} and Avet Harutyunyan and Sergio Hoyer and Roi Alonso and Michael Gillon and Kaib, {Nathan A.} and Latham, {David. W.} and Christophe Lovis and Francesco Pepe and Didier Queloz and Raymond, {Sean N.} and Damien Segransan and Waldmann, {Ingo P.} and Stephane Udry",

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doi = "10.1088/2041-8205/792/2/L31",

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TY - JOUR

T1 - Rossiter-McLaughlin observations of 55 Cnc e

AU - Lopez-Morales, Mercedes

AU - Triaud, Amaury H. M. J.

AU - Rodler, Florian

AU - Dumusque, Xavier

AU - Buchhave, Lars A.

AU - Harutyunyan, Avet

AU - Hoyer, Sergio

AU - Alonso, Roi

AU - Gillon, Michael

AU - Kaib, Nathan A.

AU - Latham, David. W.

AU - Lovis, Christophe

AU - Pepe, Francesco

AU - Queloz, Didier

AU - Raymond, Sean N.

AU - Segransan, Damien

AU - Waldmann, Ingo P.

AU - Udry, Stephane

PY - 2014/9/10

Y1 - 2014/9/10

N2 - 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 s 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.

AB - 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 s 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.

U2 - 10.1088/2041-8205/792/2/L31

DO - 10.1088/2041-8205/792/2/L31

M3 - Journal article

SN - 2041-8205

VL - 792

JO - The Astrophysical Journal Letters

JF - The Astrophysical Journal Letters

IS - 2

M1 - L31

ER -

Rossiter-McLaughlin observations of 55 Cnc e

Abstract

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