The GAPS programme with HARPS-N at TNG: II. No giant planets around the metal-poor star HIP 11952

S. Desidera; A. Sozzetti; A. S. Bonomo; R. Gratton; E. Poretti; R. Claudi; D. W. Latham; L. Affer; R. Cosentino; M. Damasso; M. Esposito; P. Giacobbe; L. Malavolta; V. Nascimbeni; G. Piotto; M. Rainer; M. Scardia; V. S. Schmid; A. F. Lanza; G. Micela; I. Pagano; L. R. Bedin; K. Biazzo; F. Borsa; E. Carolo; E. Covino; F. Faedi; G. Hébrard; C. Lovis; A. Maggio; L. Mancini; F. Marzari; S. Messina; E. Molinari; U. Munari; F. Pepe; N. Santos; G. Scandariato; E. Shkolnik; J. Southworth

doi:10.1051/0004-6361/201321155

The GAPS programme with HARPS-N at TNG: II. No giant planets around the metal-poor star HIP 11952

S. Desidera, A. Sozzetti, A. S. Bonomo, R. Gratton, E. Poretti, R. Claudi, D. W. Latham, L. Affer, R. Cosentino, M. Damasso, M. Esposito, P. Giacobbe, L. Malavolta, V. Nascimbeni, G. Piotto, M. Rainer, M. Scardia, V. S. Schmid, A. F. Lanza, G. MicelaI. Pagano, L. R. Bedin, K. Biazzo, F. Borsa, E. Carolo, E. Covino, F. Faedi, G. Hébrard, C. Lovis, A. Maggio, L. Mancini, F. Marzari, S. Messina, E. Molinari, U. Munari, F. Pepe, N. Santos, G. Scandariato, E. Shkolnik, J. Southworth

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Abstract

In the context of the programme Global Architecture of Planetary Systems (GAPS), we have performed radial velocity monitoring of the metal-poor star HIP 11952 on 35 nights during about 150 days using the newly installed high-resolution spectrograph HARPS-N at the TNG and HARPS at the ESO 3.6 m telescope. The radial velocities show a scatter of 7 m s^-1, compatible with the measurement errors for such a moderately warm metal-poor star (T_eff = 6040 ± 120 K; [Fe/H] =-1.9 ± 0.1). We exclude the presence of the two giant planets with periods of 6.95 ± 0.01 d and 290.0 ± 16.2 d and radial velocity semi-amplitudes of 100.3 ± 19.4 m s^-1 and 105.2 ± 14.7 m s^-1, respectively, which have recently been announced. This result is important because HIP 11952 was thought to be the most metal-poor star hosting a planetary systemwith giant planets, which challenged some models of planet formation.

Original language	English (US)
Article number	A29
Journal	Astronomy and Astrophysics
Volume	554
DOIs	https://doi.org/10.1051/0004-6361/201321155
State	Published - 2013
Externally published	Yes

Keywords

Planetary systems
Stars: individual: HIP 11952
Techniques: radial velocities

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361/201321155

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Desidera, S., Sozzetti, A., Bonomo, A. S., Gratton, R., Poretti, E., Claudi, R., Latham, D. W., Affer, L., Cosentino, R., Damasso, M., Esposito, M., Giacobbe, P., Malavolta, L., Nascimbeni, V., Piotto, G., Rainer, M., Scardia, M., Schmid, V. S., Lanza, A. F., ... Southworth, J. (2013). The GAPS programme with HARPS-N at TNG: II. No giant planets around the metal-poor star HIP 11952. Astronomy and Astrophysics, 554, Article A29. https://doi.org/10.1051/0004-6361/201321155

Desidera, S, Sozzetti, A, Bonomo, AS, Gratton, R, Poretti, E, Claudi, R, Latham, DW, Affer, L, Cosentino, R, Damasso, M, Esposito, M, Giacobbe, P, Malavolta, L, Nascimbeni, V, Piotto, G, Rainer, M, Scardia, M, Schmid, VS, Lanza, AF, Micela, G, Pagano, I, Bedin, LR, Biazzo, K, Borsa, F, Carolo, E, Covino, E, Faedi, F, Hébrard, G, Lovis, C, Maggio, A, Mancini, L, Marzari, F, Messina, S, Molinari, E, Munari, U, Pepe, F, Santos, N, Scandariato, G, Shkolnik, E & Southworth, J 2013, 'The GAPS programme with HARPS-N at TNG: II. No giant planets around the metal-poor star HIP 11952', Astronomy and Astrophysics, vol. 554, A29. https://doi.org/10.1051/0004-6361/201321155

@article{c27ac261f5c24014a5dfb95b016d93ef,

title = "The GAPS programme with HARPS-N at TNG: II. No giant planets around the metal-poor star HIP 11952",

abstract = "In the context of the programme Global Architecture of Planetary Systems (GAPS), we have performed radial velocity monitoring of the metal-poor star HIP 11952 on 35 nights during about 150 days using the newly installed high-resolution spectrograph HARPS-N at the TNG and HARPS at the ESO 3.6 m telescope. The radial velocities show a scatter of 7 m s-1, compatible with the measurement errors for such a moderately warm metal-poor star (Teff = 6040 ± 120 K; [Fe/H] =-1.9 ± 0.1). We exclude the presence of the two giant planets with periods of 6.95 ± 0.01 d and 290.0 ± 16.2 d and radial velocity semi-amplitudes of 100.3 ± 19.4 m s-1 and 105.2 ± 14.7 m s-1, respectively, which have recently been announced. This result is important because HIP 11952 was thought to be the most metal-poor star hosting a planetary systemwith giant planets, which challenged some models of planet formation.",

keywords = "Planetary systems, Stars: individual: HIP 11952, Techniques: radial velocities",

author = "S. Desidera and A. Sozzetti and Bonomo, {A. S.} and R. Gratton and E. Poretti and R. Claudi and Latham, {D. W.} and L. Affer and R. Cosentino and M. Damasso and M. Esposito and P. Giacobbe and L. Malavolta and V. Nascimbeni and G. Piotto and M. Rainer and M. Scardia and Schmid, {V. S.} and Lanza, {A. F.} and G. Micela and I. Pagano and Bedin, {L. R.} and K. Biazzo and F. Borsa and E. Carolo and E. Covino and F. Faedi and G. H{\'e}brard and C. Lovis and A. Maggio and L. Mancini and F. Marzari and S. Messina and E. Molinari and U. Munari and F. Pepe and N. Santos and G. Scandariato and E. Shkolnik and J. Southworth",

note = "Funding Information: We thank the TNG staff for help in the preparation of the observations and R. Smareglia and collaborators for the kind assistance with the data retrieval from TNG archive. This work was partially funded by PRIN-INAF 2010. NCS acknowledges the support by the ERC/EC under the FP7 through Starting Grant agreement n. 239953, as well as the support from Funda{\c c}{\~a}o para a Ci{\^e}ncia e a Tecnologia (FCT) through prog. Ci{\^e}ncia 2007 funded by FCT/MCTES (Portugal) and POPH/FSE (EC), and in the form of grants ref. PTDC/CTE-AST/098528/2008 and PTDC/CTE-AST/120251/2010.",

year = "2013",

doi = "10.1051/0004-6361/201321155",

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 - II. No giant planets around the metal-poor star HIP 11952

AU - Desidera, S.

AU - Sozzetti, A.

AU - Bonomo, A. S.

AU - Gratton, R.

AU - Poretti, E.

AU - Claudi, R.

AU - Latham, D. W.

AU - Affer, L.

AU - Cosentino, R.

AU - Damasso, M.

AU - Esposito, M.

AU - Giacobbe, P.

AU - Malavolta, L.

AU - Nascimbeni, V.

AU - Piotto, G.

AU - Rainer, M.

AU - Scardia, M.

AU - Schmid, V. S.

AU - Lanza, A. F.

AU - Micela, G.

AU - Pagano, I.

AU - Bedin, L. R.

AU - Biazzo, K.

AU - Borsa, F.

AU - Carolo, E.

AU - Covino, E.

AU - Faedi, F.

AU - Hébrard, G.

AU - Lovis, C.

AU - Maggio, A.

AU - Mancini, L.

AU - Marzari, F.

AU - Messina, S.

AU - Molinari, E.

AU - Munari, U.

AU - Pepe, F.

AU - Santos, N.

AU - Scandariato, G.

AU - Shkolnik, E.

AU - Southworth, J.

N1 - Funding Information: We thank the TNG staff for help in the preparation of the observations and R. Smareglia and collaborators for the kind assistance with the data retrieval from TNG archive. This work was partially funded by PRIN-INAF 2010. NCS acknowledges the support by the ERC/EC under the FP7 through Starting Grant agreement n. 239953, as well as the support from Fundação para a Ciência e a Tecnologia (FCT) through prog. Ciência 2007 funded by FCT/MCTES (Portugal) and POPH/FSE (EC), and in the form of grants ref. PTDC/CTE-AST/098528/2008 and PTDC/CTE-AST/120251/2010.

PY - 2013

Y1 - 2013

N2 - In the context of the programme Global Architecture of Planetary Systems (GAPS), we have performed radial velocity monitoring of the metal-poor star HIP 11952 on 35 nights during about 150 days using the newly installed high-resolution spectrograph HARPS-N at the TNG and HARPS at the ESO 3.6 m telescope. The radial velocities show a scatter of 7 m s-1, compatible with the measurement errors for such a moderately warm metal-poor star (Teff = 6040 ± 120 K; [Fe/H] =-1.9 ± 0.1). We exclude the presence of the two giant planets with periods of 6.95 ± 0.01 d and 290.0 ± 16.2 d and radial velocity semi-amplitudes of 100.3 ± 19.4 m s-1 and 105.2 ± 14.7 m s-1, respectively, which have recently been announced. This result is important because HIP 11952 was thought to be the most metal-poor star hosting a planetary systemwith giant planets, which challenged some models of planet formation.

AB - In the context of the programme Global Architecture of Planetary Systems (GAPS), we have performed radial velocity monitoring of the metal-poor star HIP 11952 on 35 nights during about 150 days using the newly installed high-resolution spectrograph HARPS-N at the TNG and HARPS at the ESO 3.6 m telescope. The radial velocities show a scatter of 7 m s-1, compatible with the measurement errors for such a moderately warm metal-poor star (Teff = 6040 ± 120 K; [Fe/H] =-1.9 ± 0.1). We exclude the presence of the two giant planets with periods of 6.95 ± 0.01 d and 290.0 ± 16.2 d and radial velocity semi-amplitudes of 100.3 ± 19.4 m s-1 and 105.2 ± 14.7 m s-1, respectively, which have recently been announced. This result is important because HIP 11952 was thought to be the most metal-poor star hosting a planetary systemwith giant planets, which challenged some models of planet formation.

KW - Planetary systems

KW - Stars: individual: HIP 11952

KW - Techniques: radial velocities

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U2 - 10.1051/0004-6361/201321155

DO - 10.1051/0004-6361/201321155

M3 - Article

AN - SCOPUS:84878437200

SN - 0004-6361

VL - 554

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A29

ER -

The GAPS programme with HARPS-N at TNG: II. No giant planets around the metal-poor star HIP 11952

Abstract

Keywords

ASJC Scopus subject areas

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