Dataciencia

Colección SciELO Chile

HATS-2b: A transiting extrasolar planet orbiting a K -type star showing starspot activity a

Indexado

WoS	WOS:000326574000055
Scopus	SCOPUS_ID:84885089744

DOI

10.1051/0004-6361/201321663

Año

2013

Tipo

artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras

Abstract

We report the discovery of HATS-2b, the second transiting extrasolar planet detected by the HATSouth survey. HATS-2b is moving on a circular orbit around a V = 13.6 mag, K-type dwarf star (GSC 6665-00236), at a separation of 0.0230 +/- 0.0003 AU and with a period of 1.3541 days. The planetary parameters have been robustly determined using a simultaneous fit of the HATSouth, MPG/ESO 2.2m/GROND, Faulkes Telescope South/Spectral transit photometry, and MPG/ESO 2.2m/FEROS, Euler 1.2m/CORALIE, AAT 3.9m/CYCLOPS radial-velocity measurements. HATS-2b has a mass of 1.37 +/- 0.16 MJ, a radius of 1.14 +/- 0.03 RJ, and an equilibrium temperature of 1567 +/- 30 K. The host star has a mass of 0.88 +/- 0.04 M fi and a radius of 0.89 +/- 0.02 R fi, and it shows starspot activity. We characterized the stellar activity by analyzing two photometric follow-up transit light curves taken with the GROND instrument, both obtained simultaneously in four optical bands (covering the wavelength range of 3860 9520 angstrom). The two light curves contain anomalies compatible with starspots on the photosphere of the host star along the same transit chord.

Revista

Revista	ISSN
Astronomy & Astrophysics	1432-0746

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Disciplinas de Investigación

WOS
Astronomy & Astrophysics

Scopus
Sin Disciplinas

SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional

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Autores - Afiliación

Ord.	Autor	Género	Institución - País
2	Mancin, L.	Hombre	Max Planck Inst Astron - Alemania Max Planck Institute for Astronomy - Alemania
3	Hartman, Joel D.	Hombre	Princeton Univ - Estados Unidos Harvard Smithsonian Ctr Astrophys - Estados Unidos Princeton University - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos
4	Bakos, Gaspar	Hombre	Princeton Univ - Estados Unidos Harvard Smithsonian Ctr Astrophys - Estados Unidos Princeton University - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos
5	Penev, Kaloyan	Hombre	Princeton Univ - Estados Unidos Harvard Smithsonian Ctr Astrophys - Estados Unidos Princeton University - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos
6	Bayliss, Dan	Hombre	Australian Natl Univ - Australia Australian National University - Australia The Australian National University - Australia
7	JORDAN-COLZANI, ANDRES CRISTOBAL	Hombre	Pontificia Universidad Católica de Chile - Chile Centro de Excelencia en Astrofísica y Tecnologías Afines - Chile
8	Csubry, Z.	-	Princeton Univ - Estados Unidos Harvard Smithsonian Ctr Astrophys - Estados Unidos Princeton University - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos
9	Zhou, George	Hombre	Australian Natl Univ - Australia Australian National University - Australia The Australian National University - Australia
10	Rabus, M.	Hombre	Pontificia Universidad Católica de Chile - Chile
11	Nikolov, Nikolay	Hombre	Univ Exeter - Reino Unido University of Exeter - Reino Unido
12	BRAHM-SCOTT, RAFAEL ANDRES	Hombre	Pontificia Universidad Católica de Chile - Chile
13	Espinoza, Nestor	Hombre	Pontificia Universidad Católica de Chile - Chile
14	Buchhave, L. A.	Hombre	Univ Copenhagen - Dinamarca Niels Bohr Institute - Dinamarca Københavns Universitet - Dinamarca Niels Bohr Institutet - Dinamarca Statens Naturhistoriske Museum - Dinamarca
15	Béky, B.	-	Harvard Smithsonian Ctr Astrophys - Estados Unidos
16	Suc, Vincent	Hombre	Pontificia Universidad Católica de Chile - Chile
17	Csák, B.	-	Max Planck Inst Astron - Alemania ELTE Gothard Lendulet Res Grp - Hungría
18	Henning, Thomas	Hombre	Max Planck Inst Astron - Alemania Max Planck Institute for Astronomy - Alemania
19	Wright, Duncan	Hombre	Univ New S Wales - Australia University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia
20	Tinney, C. G.	Hombre	Univ New S Wales - Australia University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia
21	Addison, B.	Hombre	Univ New S Wales - Australia University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia
22	Schmidt, Brian	Hombre	Australian Natl Univ - Australia Australian National University - Australia The Australian National University - Australia
23	Noyes, R. W.	-	Harvard Smithsonian Ctr Astrophys - Estados Unidos
24	Papp, I.	-	Hungarian Astron Assoc - Hungría
25	Lazar, J.	-	Hungarian Astron Assoc - Hungría
26	Mohler-Fischer, M.	-	Max Planck Inst Astron - Alemania
26	Sari, P.	-	Hungarian Astron Assoc - Hungría
27	Conroy, P.	-	Australian Natl Univ - Australia Australian National University - Australia The Australian National University - Australia

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Origen de Citas Identificadas

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Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 39.53 %
Citas No-identificadas: 60.47 %

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Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 39.53 %
Citas No-identificadas: 60.47 %

Financiamiento

Fuente
FONDECYT
National Science Foundation
Fondo Nacional de Desarrollo Científico y Tecnológico
Australian Research Council
NASA
Science and Technology Facilities Council
STFC consolidated grant
Robert Martin Ayers Sciences Fund
National Aeronautics and Space Administration
Fondo Nacional de Desarrollo CientÃfico y TecnolÃ³gico
Ministry of Economy
NSF MRI
BASAL CATA
NSF MRI grant
SIMBAD database
Chinese Diabetes Society
ARC LIEF
ARC Australian Professorial Fellowship
ARC Super Science Fellowships
Directorate for Mathematical and Physical Sciences

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos

Agradecimiento
Development of the HATSouth project was funded by NSF MRI grant NSF/AST-0723074, operations are supported by NASA grant NNX09AB29G, and follow-up observations receive partial support from grant NSF/AST-1108686. Data presented in this paper is based partly on observations obtained with the HATSouth Station at the Las Campanas Observatory of the Carnegie Institution of Washington. This work is based on observations collected at the MPG/ESO 2.2 m Telescope located at the ESO Observatory in La Silla (Chile), under program IDs P087. A-9014(A), P088. A-9008(A), P089. A9008(A), 089. A-9006(A), and Chilean time P087. C-0508(A). Operations of this telescope are jointly performed by the Max Planck Gesellschaft and the European Southern Observatory. GROND has been built by the high-energy group of MPE in collaboration with the LSW Tautenburg and ESO, and is operating as a PI-instrument at the MPG/ESO 2.2 m telescope. We thank Timo Anguita and Regis Lachaume for their technical assistance during the observations at the MPG/ESO 2.2 m Telescope. A. J. acknowledges support from Fondecyt project 1130857, Anillo ACT-086, BASAL CATA PFB-06 and the Millenium Science Initiative, Chilean Ministry of Economy (Nucleus P10-022-F). V. S. acknowledges support form BASAL CATA PFB-06. R. B. and N. E. acknowledge support from Fondecyt project 1095213. N. N. acknowledges support from an STFC consolidated grant. M. R. acknowledges support from a FONDECYT postdoctoral fellowship N ffi 3120097. L. M. thanks Jeremy Tregloan-Reed for his help for using of the PRISM and GEMC codes, and John Southworth and Valerio Bozza for useful discussions. This paper also uses observations obtained with facilities of the Las Cumbres Observatory Global Telescope. Work at the Australian National University is supported by ARC Laureate Fellowship Grant FL0992131. We acknowledge the use of the AAVSO Photometric AllSky Survey (APASS), funded by the Robert Martin Ayers Sciences Fund, and the SIMBAD database, operated at the CDS, Strasbourg, France. Work at UNSW has been supported by ARC Australian Professorial Fellowship grant DP0774000, ARC LIEF grant LE0989347 and ARC Super Science Fellowships FS100100046.
Development of the HATSouth project was funded by NSF MRI grant NSF/AST-0723074, operations are supported by NASA grant NNX09AB29G, and follow-up observations receive partial support from grant NSF/AST-1108686. Data presented in this paper is based partly on observations obtained with the HATSouth Station at the Las Campanas Observatory of the Carnegie Institution of Washington. This work is based on observations collected at the MPG/ESO 2.2 m Telescope located at the ESO Observatory in La Silla (Chile), under program IDs P087.A-9014(A), P088.A-9008(A), P089.A-9008(A), 089.A-9006(A), and Chilean time P087.C-0508(A). Operations of this telescope are jointly performed by the Max Planck Gesellschaft and the European Southern Observatory. GROND has been built by the high-energy group of MPE in collaboration with the LSW Tautenburg and ESO, and is operating as a PI-instrument at the MPG/ESO 2.2 m telescope. We thank Timo Anguita and Régis Lachaume for their technical assistance during the observations at the MPG/ESO 2.2 m Telescope. A.J. acknowledges support from Fondecyt project 1130857, Anillo ACT-086, BASAL CATA PFB-06 and the Millenium Science Initiative, Chilean Ministry of Economy (Nucleus P10-022-F). V.S. acknowledges support form BASAL CATA PFB-06. R.B. and N.E. acknowledge support from Fondecyt project 1095213. N.N. acknowledges support from an STFC consolidated grant. M.R. acknowledges support from a FONDECYT postdoctoral fellowship N°3120097. L.M. thanks Jeremy Tregloan-Reed for his help for using of the PRISM and GEMC codes, and John Southworth and Valerio Bozza for useful discussions. This paper also uses observations obtained with facilities of the Las Cumbres Observatory Global Telescope. Work at the Australian National University is supported by ARC Laureate Fellowship Grant FL0992131. We acknowledge the use of the AAVSO Photometric All-Sky Survey (APASS), funded by the Robert Martin Ayers Sciences Fund, and the SIMBAD database, operated at the CDS, Strasbourg, France. Work at UNSW has been supported by ARC Australian Professorial Fellowship grant DP0774000, ARC LIEF grant LE0989347 and ARC Super Science Fellowships FS100100046.

Agradecimiento

Development of the HATSouth project was funded by NSF MRI grant NSF/AST-0723074, operations are supported by NASA grant NNX09AB29G, and follow-up observations receive partial support from grant NSF/AST-1108686. Data presented in this paper is based partly on observations obtained with the HATSouth Station at the Las Campanas Observatory of the Carnegie Institution of Washington. This work is based on observations collected at the MPG/ESO 2.2 m Telescope located at the ESO Observatory in La Silla (Chile), under program IDs P087. A-9014(A), P088. A-9008(A), P089. A9008(A), 089. A-9006(A), and Chilean time P087. C-0508(A). Operations of this telescope are jointly performed by the Max Planck Gesellschaft and the European Southern Observatory. GROND has been built by the high-energy group of MPE in collaboration with the LSW Tautenburg and ESO, and is operating as a PI-instrument at the MPG/ESO 2.2 m telescope. We thank Timo Anguita and Regis Lachaume for their technical assistance during the observations at the MPG/ESO 2.2 m Telescope. A. J. acknowledges support from Fondecyt project 1130857, Anillo ACT-086, BASAL CATA PFB-06 and the Millenium Science Initiative, Chilean Ministry of Economy (Nucleus P10-022-F). V. S. acknowledges support form BASAL CATA PFB-06. R. B. and N. E. acknowledge support from Fondecyt project 1095213. N. N. acknowledges support from an STFC consolidated grant. M. R. acknowledges support from a FONDECYT postdoctoral fellowship N ffi 3120097. L. M. thanks Jeremy Tregloan-Reed for his help for using of the PRISM and GEMC codes, and John Southworth and Valerio Bozza for useful discussions. This paper also uses observations obtained with facilities of the Las Cumbres Observatory Global Telescope. Work at the Australian National University is supported by ARC Laureate Fellowship Grant FL0992131. We acknowledge the use of the AAVSO Photometric AllSky Survey (APASS), funded by the Robert Martin Ayers Sciences Fund, and the SIMBAD database, operated at the CDS, Strasbourg, France. Work at UNSW has been supported by ARC Australian Professorial Fellowship grant DP0774000, ARC LIEF grant LE0989347 and ARC Super Science Fellowships FS100100046.

Development of the HATSouth project was funded by NSF MRI grant NSF/AST-0723074, operations are supported by NASA grant NNX09AB29G, and follow-up observations receive partial support from grant NSF/AST-1108686. Data presented in this paper is based partly on observations obtained with the HATSouth Station at the Las Campanas Observatory of the Carnegie Institution of Washington. This work is based on observations collected at the MPG/ESO 2.2 m Telescope located at the ESO Observatory in La Silla (Chile), under program IDs P087.A-9014(A), P088.A-9008(A), P089.A-9008(A), 089.A-9006(A), and Chilean time P087.C-0508(A). Operations of this telescope are jointly performed by the Max Planck Gesellschaft and the European Southern Observatory. GROND has been built by the high-energy group of MPE in collaboration with the LSW Tautenburg and ESO, and is operating as a PI-instrument at the MPG/ESO 2.2 m telescope. We thank Timo Anguita and Régis Lachaume for their technical assistance during the observations at the MPG/ESO 2.2 m Telescope. A.J. acknowledges support from Fondecyt project 1130857, Anillo ACT-086, BASAL CATA PFB-06 and the Millenium Science Initiative, Chilean Ministry of Economy (Nucleus P10-022-F). V.S. acknowledges support form BASAL CATA PFB-06. R.B. and N.E. acknowledge support from Fondecyt project 1095213. N.N. acknowledges support from an STFC consolidated grant. M.R. acknowledges support from a FONDECYT postdoctoral fellowship N°3120097. L.M. thanks Jeremy Tregloan-Reed for his help for using of the PRISM and GEMC codes, and John Southworth and Valerio Bozza for useful discussions. This paper also uses observations obtained with facilities of the Las Cumbres Observatory Global Telescope. Work at the Australian National University is supported by ARC Laureate Fellowship Grant FL0992131. We acknowledge the use of the AAVSO Photometric All-Sky Survey (APASS), funded by the Robert Martin Ayers Sciences Fund, and the SIMBAD database, operated at the CDS, Strasbourg, France. Work at UNSW has been supported by ARC Australian Professorial Fellowship grant DP0774000, ARC LIEF grant LE0989347 and ARC Super Science Fellowships FS100100046.

Muestra la fuente de financiamiento declarada en la publicación.

Abstract

Revista

Métricas Externas

Disciplinas de Investigación

Colaboración Institucional

Autores - Afiliación

Origen de Citas Identificadas

Financiamiento

Agradecimientos

Departamento Gestión de Conocimiento, Monitoreo y Prospección