The GAPS programme with HARPS-N at TNG

I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1

E. Covino, M. Esposito, M. Barbieri, L. Mancini, V. Nascimbeni, R. Claudi, S. Desidera, R. Gratton, A. F. Lanza, A. Sozzetti, K. Biazzo, L. Affer, D. Gandolfi, U. Munari, I. Pagano, A. S. Bonomo, A. Collier Cameron, G. Hébrard, A. Maggio, S. Messina & 50 others G. Micela, E. Molinari, F. Pepe, G. Piotto, I. Ribas, N. C. Santos, J. Southworth, Evgenya Shkolnik, A. H M J Triaud, L. Bedin, S. Benatti, C. Boccato, M. Bonavita, F. Borsa, L. Borsato, D. Brown, E. Carolo, S. Ciceri, R. Cosentino, M. Damasso, F. Faedi, A. F. Martínez Fiorenzano, D. W. Latham, C. Lovis, C. Mordasini, N. Nikolov, E. Poretti, M. Rainer, R. Rebolo López, G. Scandariato, R. Silvotti, R. Smareglia, J. M. Alcalá, A. Cunial, L. Di Fabrizio, M. P. Di Mauro, P. Giacobbe, V. Granata, A. Harutyunyan, C. Knapic, M. Lattanzi, G. Leto, G. Lodato, L. Malavolta, F. Marzari, M. Molinaro, D. Nardiello, M. Pedani, L. Prisinzano, D. Turrini

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Context. Our understanding of the formation and evolution of planetary systems is still fragmentary because most of the current data provide limited information about the orbital structure and dynamics of these systems. The knowledge of the orbital properties for a variety of systems and at different ages yields information on planet migration and on star-planet tidal interaction mechanisms. Aims. In this context, a long-term, multi-purpose, observational programme has started with HARPS-N at TNG and aims to characterise the global architectural properties of exoplanetary systems. The goal of this first paper is to fully characterise the orbital properties of the transiting system Qatar-1 as well as the physical properties of the star and the planet. Methods. We exploit HARPS-N high-precision radial velocity measurements obtained during a transit to measure the Rossiter-McLaughlin effect in the Qatar-1 system, and out-of-transit measurements to redetermine the spectroscopic orbit. New photometric-transit light-curves were analysed and a spectroscopic characterisation of the host star atmospheric parameters was performed based on various methods (line equivalent width ratios, spectral synthesis, spectral energy distribution). Results. We achieved a significant improvement in the accuracy of the orbital parameters and derived the spin-orbit alignment of the system; this information, combined with the spectroscopic determination of the host star properties (rotation, Teff, log g, metallicity), allows us to derive the fundamental physical parameters for star and planet (masses and radii). The orbital solution for the Qatar-1 system is consistent with a circular orbit and the system presents a sky-projected obliquity of λ =-8.4 ± 7.1 deg. The planet, with a mass of 1.33 ± 0.05 M J, is found to be significantly more massive than previously reported. The host star is confirmed to be metal-rich ([Fe/H] = 0.20 ± 0.10) and slowly rotating (vsinI = 1.7 ± 0.3 km s-1), though moderately active, as indicated by the strong chromospheric emission in the Ca ii H&K line cores (log R'HK ≈-4.60logRHK'≈-4.60). Conclusions. We find that the system is well aligned and fits well within the general λ versus Teff trend. We can definitely rule out any significant orbital eccentricity. The evolutionary status of the system is inferred based on gyrochronology, and the present orbital configuration and timescale for orbital decay are discussed in terms of star-planet tidal interactions.

Original languageEnglish (US)
Article numberA28
JournalAstronomy and Astrophysics
Volume554
DOIs
StatePublished - 2013
Externally publishedYes

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Qatar
planet
planets
orbitals
stars
transit
obliquity
orbits
eccentricity
K lines
planetary systems
programme
effect
circular orbits
spectral energy distribution
physical property
velocity measurement
radial velocity
light curve
metallicity

Keywords

  • Stars: fundamental parameters
  • Stars: individual: Qatar-1
  • Stars: late-type
  • Techniques: radial velocities

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

The GAPS programme with HARPS-N at TNG : I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1. / Covino, E.; Esposito, M.; Barbieri, M.; Mancini, L.; Nascimbeni, V.; Claudi, R.; Desidera, S.; Gratton, R.; Lanza, A. F.; Sozzetti, A.; Biazzo, K.; Affer, L.; Gandolfi, D.; Munari, U.; Pagano, I.; Bonomo, A. S.; Collier Cameron, A.; Hébrard, G.; Maggio, A.; Messina, S.; Micela, G.; Molinari, E.; Pepe, F.; Piotto, G.; Ribas, I.; Santos, N. C.; Southworth, J.; Shkolnik, Evgenya; Triaud, A. H M J; Bedin, L.; Benatti, S.; Boccato, C.; Bonavita, M.; Borsa, F.; Borsato, L.; Brown, D.; Carolo, E.; Ciceri, S.; Cosentino, R.; Damasso, M.; Faedi, F.; Martínez Fiorenzano, A. F.; Latham, D. W.; Lovis, C.; Mordasini, C.; Nikolov, N.; Poretti, E.; Rainer, M.; Rebolo López, R.; Scandariato, G.; Silvotti, R.; Smareglia, R.; Alcalá, J. M.; Cunial, A.; Di Fabrizio, L.; Di Mauro, M. P.; Giacobbe, P.; Granata, V.; Harutyunyan, A.; Knapic, C.; Lattanzi, M.; Leto, G.; Lodato, G.; Malavolta, L.; Marzari, F.; Molinaro, M.; Nardiello, D.; Pedani, M.; Prisinzano, L.; Turrini, D.

In: Astronomy and Astrophysics, Vol. 554, A28, 2013.

Research output: Contribution to journalArticle

Covino, E, Esposito, M, Barbieri, M, Mancini, L, Nascimbeni, V, Claudi, R, Desidera, S, Gratton, R, Lanza, AF, Sozzetti, A, Biazzo, K, Affer, L, Gandolfi, D, Munari, U, Pagano, I, Bonomo, AS, Collier Cameron, A, Hébrard, G, Maggio, A, Messina, S, Micela, G, Molinari, E, Pepe, F, Piotto, G, Ribas, I, Santos, NC, Southworth, J, Shkolnik, E, Triaud, AHMJ, Bedin, L, Benatti, S, Boccato, C, Bonavita, M, Borsa, F, Borsato, L, Brown, D, Carolo, E, Ciceri, S, Cosentino, R, Damasso, M, Faedi, F, Martínez Fiorenzano, AF, Latham, DW, Lovis, C, Mordasini, C, Nikolov, N, Poretti, E, Rainer, M, Rebolo López, R, Scandariato, G, Silvotti, R, Smareglia, R, Alcalá, JM, Cunial, A, Di Fabrizio, L, Di Mauro, MP, Giacobbe, P, Granata, V, Harutyunyan, A, Knapic, C, Lattanzi, M, Leto, G, Lodato, G, Malavolta, L, Marzari, F, Molinaro, M, Nardiello, D, Pedani, M, Prisinzano, L & Turrini, D 2013, 'The GAPS programme with HARPS-N at TNG: I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1', Astronomy and Astrophysics, vol. 554, A28. https://doi.org/10.1051/0004-6361/201321298
Covino, E. ; Esposito, M. ; Barbieri, M. ; Mancini, L. ; Nascimbeni, V. ; Claudi, R. ; Desidera, S. ; Gratton, R. ; Lanza, A. F. ; Sozzetti, A. ; Biazzo, K. ; Affer, L. ; Gandolfi, D. ; Munari, U. ; Pagano, I. ; Bonomo, A. S. ; Collier Cameron, A. ; Hébrard, G. ; Maggio, A. ; Messina, S. ; Micela, G. ; Molinari, E. ; Pepe, F. ; Piotto, G. ; Ribas, I. ; Santos, N. C. ; Southworth, J. ; Shkolnik, Evgenya ; Triaud, A. H M J ; Bedin, L. ; Benatti, S. ; Boccato, C. ; Bonavita, M. ; Borsa, F. ; Borsato, L. ; Brown, D. ; Carolo, E. ; Ciceri, S. ; Cosentino, R. ; Damasso, M. ; Faedi, F. ; Martínez Fiorenzano, A. F. ; Latham, D. W. ; Lovis, C. ; Mordasini, C. ; Nikolov, N. ; Poretti, E. ; Rainer, M. ; Rebolo López, R. ; Scandariato, G. ; Silvotti, R. ; Smareglia, R. ; Alcalá, J. M. ; Cunial, A. ; Di Fabrizio, L. ; Di Mauro, M. P. ; Giacobbe, P. ; Granata, V. ; Harutyunyan, A. ; Knapic, C. ; Lattanzi, M. ; Leto, G. ; Lodato, G. ; Malavolta, L. ; Marzari, F. ; Molinaro, M. ; Nardiello, D. ; Pedani, M. ; Prisinzano, L. ; Turrini, D. / The GAPS programme with HARPS-N at TNG : I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1. In: Astronomy and Astrophysics. 2013 ; Vol. 554.
@article{224c248e76bb41e89d3c70c7e38125aa,
title = "The GAPS programme with HARPS-N at TNG: I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1",
abstract = "Context. Our understanding of the formation and evolution of planetary systems is still fragmentary because most of the current data provide limited information about the orbital structure and dynamics of these systems. The knowledge of the orbital properties for a variety of systems and at different ages yields information on planet migration and on star-planet tidal interaction mechanisms. Aims. In this context, a long-term, multi-purpose, observational programme has started with HARPS-N at TNG and aims to characterise the global architectural properties of exoplanetary systems. The goal of this first paper is to fully characterise the orbital properties of the transiting system Qatar-1 as well as the physical properties of the star and the planet. Methods. We exploit HARPS-N high-precision radial velocity measurements obtained during a transit to measure the Rossiter-McLaughlin effect in the Qatar-1 system, and out-of-transit measurements to redetermine the spectroscopic orbit. New photometric-transit light-curves were analysed and a spectroscopic characterisation of the host star atmospheric parameters was performed based on various methods (line equivalent width ratios, spectral synthesis, spectral energy distribution). Results. We achieved a significant improvement in the accuracy of the orbital parameters and derived the spin-orbit alignment of the system; this information, combined with the spectroscopic determination of the host star properties (rotation, Teff, log g, metallicity), allows us to derive the fundamental physical parameters for star and planet (masses and radii). The orbital solution for the Qatar-1 system is consistent with a circular orbit and the system presents a sky-projected obliquity of λ =-8.4 ± 7.1 deg. The planet, with a mass of 1.33 ± 0.05 M J, is found to be significantly more massive than previously reported. The host star is confirmed to be metal-rich ([Fe/H] = 0.20 ± 0.10) and slowly rotating (vsinI = 1.7 ± 0.3 km s-1), though moderately active, as indicated by the strong chromospheric emission in the Ca ii H&K line cores (log R'HK ≈-4.60logRHK'≈-4.60). Conclusions. We find that the system is well aligned and fits well within the general λ versus Teff trend. We can definitely rule out any significant orbital eccentricity. The evolutionary status of the system is inferred based on gyrochronology, and the present orbital configuration and timescale for orbital decay are discussed in terms of star-planet tidal interactions.",
keywords = "Stars: fundamental parameters, Stars: individual: Qatar-1, Stars: late-type, Techniques: radial velocities",
author = "E. Covino and M. Esposito and M. Barbieri and L. Mancini and V. Nascimbeni and R. Claudi and S. Desidera and R. Gratton and Lanza, {A. F.} and A. Sozzetti and K. Biazzo and L. Affer and D. Gandolfi and U. Munari and I. Pagano and Bonomo, {A. S.} and {Collier Cameron}, A. and G. H{\'e}brard and A. Maggio and S. Messina and G. Micela and E. Molinari and F. Pepe and G. Piotto and I. Ribas and Santos, {N. C.} and J. Southworth and Evgenya Shkolnik and Triaud, {A. H M J} and L. Bedin and S. Benatti and C. Boccato and M. Bonavita and F. Borsa and L. Borsato and D. Brown and E. Carolo and S. Ciceri and R. Cosentino and M. Damasso and F. Faedi and {Mart{\'i}nez Fiorenzano}, {A. F.} and Latham, {D. W.} and C. Lovis and C. Mordasini and N. Nikolov and E. Poretti and M. Rainer and {Rebolo L{\'o}pez}, R. and G. Scandariato and R. Silvotti and R. Smareglia and Alcal{\'a}, {J. M.} and A. Cunial and {Di Fabrizio}, L. and {Di Mauro}, {M. P.} and P. Giacobbe and V. Granata and A. Harutyunyan and C. Knapic and M. Lattanzi and G. Leto and G. Lodato and L. Malavolta and F. Marzari and M. Molinaro and D. Nardiello and M. Pedani and L. Prisinzano and D. Turrini",
year = "2013",
doi = "10.1051/0004-6361/201321298",
language = "English (US)",
volume = "554",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

TY - JOUR

T1 - The GAPS programme with HARPS-N at TNG

T2 - I. Observations of the Rossiter-McLaughlin effect and characterisation of the transiting system Qatar-1

AU - Covino, E.

AU - Esposito, M.

AU - Barbieri, M.

AU - Mancini, L.

AU - Nascimbeni, V.

AU - Claudi, R.

AU - Desidera, S.

AU - Gratton, R.

AU - Lanza, A. F.

AU - Sozzetti, A.

AU - Biazzo, K.

AU - Affer, L.

AU - Gandolfi, D.

AU - Munari, U.

AU - Pagano, I.

AU - Bonomo, A. S.

AU - Collier Cameron, A.

AU - Hébrard, G.

AU - Maggio, A.

AU - Messina, S.

AU - Micela, G.

AU - Molinari, E.

AU - Pepe, F.

AU - Piotto, G.

AU - Ribas, I.

AU - Santos, N. C.

AU - Southworth, J.

AU - Shkolnik, Evgenya

AU - Triaud, A. H M J

AU - Bedin, L.

AU - Benatti, S.

AU - Boccato, C.

AU - Bonavita, M.

AU - Borsa, F.

AU - Borsato, L.

AU - Brown, D.

AU - Carolo, E.

AU - Ciceri, S.

AU - Cosentino, R.

AU - Damasso, M.

AU - Faedi, F.

AU - Martínez Fiorenzano, A. F.

AU - Latham, D. W.

AU - Lovis, C.

AU - Mordasini, C.

AU - Nikolov, N.

AU - Poretti, E.

AU - Rainer, M.

AU - Rebolo López, R.

AU - Scandariato, G.

AU - Silvotti, R.

AU - Smareglia, R.

AU - Alcalá, J. M.

AU - Cunial, A.

AU - Di Fabrizio, L.

AU - Di Mauro, M. P.

AU - Giacobbe, P.

AU - Granata, V.

AU - Harutyunyan, A.

AU - Knapic, C.

AU - Lattanzi, M.

AU - Leto, G.

AU - Lodato, G.

AU - Malavolta, L.

AU - Marzari, F.

AU - Molinaro, M.

AU - Nardiello, D.

AU - Pedani, M.

AU - Prisinzano, L.

AU - Turrini, D.

PY - 2013

Y1 - 2013

N2 - Context. Our understanding of the formation and evolution of planetary systems is still fragmentary because most of the current data provide limited information about the orbital structure and dynamics of these systems. The knowledge of the orbital properties for a variety of systems and at different ages yields information on planet migration and on star-planet tidal interaction mechanisms. Aims. In this context, a long-term, multi-purpose, observational programme has started with HARPS-N at TNG and aims to characterise the global architectural properties of exoplanetary systems. The goal of this first paper is to fully characterise the orbital properties of the transiting system Qatar-1 as well as the physical properties of the star and the planet. Methods. We exploit HARPS-N high-precision radial velocity measurements obtained during a transit to measure the Rossiter-McLaughlin effect in the Qatar-1 system, and out-of-transit measurements to redetermine the spectroscopic orbit. New photometric-transit light-curves were analysed and a spectroscopic characterisation of the host star atmospheric parameters was performed based on various methods (line equivalent width ratios, spectral synthesis, spectral energy distribution). Results. We achieved a significant improvement in the accuracy of the orbital parameters and derived the spin-orbit alignment of the system; this information, combined with the spectroscopic determination of the host star properties (rotation, Teff, log g, metallicity), allows us to derive the fundamental physical parameters for star and planet (masses and radii). The orbital solution for the Qatar-1 system is consistent with a circular orbit and the system presents a sky-projected obliquity of λ =-8.4 ± 7.1 deg. The planet, with a mass of 1.33 ± 0.05 M J, is found to be significantly more massive than previously reported. The host star is confirmed to be metal-rich ([Fe/H] = 0.20 ± 0.10) and slowly rotating (vsinI = 1.7 ± 0.3 km s-1), though moderately active, as indicated by the strong chromospheric emission in the Ca ii H&K line cores (log R'HK ≈-4.60logRHK'≈-4.60). Conclusions. We find that the system is well aligned and fits well within the general λ versus Teff trend. We can definitely rule out any significant orbital eccentricity. The evolutionary status of the system is inferred based on gyrochronology, and the present orbital configuration and timescale for orbital decay are discussed in terms of star-planet tidal interactions.

AB - Context. Our understanding of the formation and evolution of planetary systems is still fragmentary because most of the current data provide limited information about the orbital structure and dynamics of these systems. The knowledge of the orbital properties for a variety of systems and at different ages yields information on planet migration and on star-planet tidal interaction mechanisms. Aims. In this context, a long-term, multi-purpose, observational programme has started with HARPS-N at TNG and aims to characterise the global architectural properties of exoplanetary systems. The goal of this first paper is to fully characterise the orbital properties of the transiting system Qatar-1 as well as the physical properties of the star and the planet. Methods. We exploit HARPS-N high-precision radial velocity measurements obtained during a transit to measure the Rossiter-McLaughlin effect in the Qatar-1 system, and out-of-transit measurements to redetermine the spectroscopic orbit. New photometric-transit light-curves were analysed and a spectroscopic characterisation of the host star atmospheric parameters was performed based on various methods (line equivalent width ratios, spectral synthesis, spectral energy distribution). Results. We achieved a significant improvement in the accuracy of the orbital parameters and derived the spin-orbit alignment of the system; this information, combined with the spectroscopic determination of the host star properties (rotation, Teff, log g, metallicity), allows us to derive the fundamental physical parameters for star and planet (masses and radii). The orbital solution for the Qatar-1 system is consistent with a circular orbit and the system presents a sky-projected obliquity of λ =-8.4 ± 7.1 deg. The planet, with a mass of 1.33 ± 0.05 M J, is found to be significantly more massive than previously reported. The host star is confirmed to be metal-rich ([Fe/H] = 0.20 ± 0.10) and slowly rotating (vsinI = 1.7 ± 0.3 km s-1), though moderately active, as indicated by the strong chromospheric emission in the Ca ii H&K line cores (log R'HK ≈-4.60logRHK'≈-4.60). Conclusions. We find that the system is well aligned and fits well within the general λ versus Teff trend. We can definitely rule out any significant orbital eccentricity. The evolutionary status of the system is inferred based on gyrochronology, and the present orbital configuration and timescale for orbital decay are discussed in terms of star-planet tidal interactions.

KW - Stars: fundamental parameters

KW - Stars: individual: Qatar-1

KW - Stars: late-type

KW - Techniques: radial velocities

UR - http://www.scopus.com/inward/record.url?scp=84878433262&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878433262&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201321298

DO - 10.1051/0004-6361/201321298

M3 - Article

VL - 554

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A28

ER -