Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii

Y. Gómez Maqueo Chew; F. Faedi; D. Pollacco; D.~J.~A. Brown; A.~P. Doyle; A. Collier Cameron; M. Gillon; M. Lendl; B. Smalley; A.~H.~M.~J. Triaud; R.~G. West; P.~J. Wheatley; R. Busuttil; C. Liebig; D.~R. Anderson; D.~J. Armstrong; S.~C.~C. Barros; J. Bento; J. Bochinski; V. Burwitz; L. Delrez; B. Enoch; A. Fumel; C.~A. Haswell; G. Hébrard; C. Hellier; S. Holmes; E. Jehin; U. Kolb; P.~F.~L. Maxted; J. McCormac; G.~R.~M. Miller; A.~J. Norton; F. Pepe; D. Queloz; J. Rodríguez; D. Ségransan; I. Skillen; K.~G. Stassun; S. Udry; C. Watson

doi:10.1051/0004-6361/201322314

Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii

Y. Gómez Maqueo Chew, F. Faedi, D. Pollacco, D.~J.~A. Brown, A.~P. Doyle, A. Collier Cameron, M. Gillon, M. Lendl, B. Smalley, A.~H.~M.~J. Triaud, R.~G. West, P.~J. Wheatley, R. Busuttil, C. Liebig, D.~R. Anderson, D.~J. Armstrong, S.~C.~C. Barros, J. Bento, J. Bochinski, V. BurwitzL. Delrez, B. Enoch, A. Fumel, C.~A. Haswell, G. Hébrard, C. Hellier, S. Holmes, E. Jehin, U. Kolb, P.~F.~L. Maxted, J. McCormac, G.~R.~M. Miller, A.~J. Norton, F. Pepe, D. Queloz, J. Rodríguez, D. Ségransan, I. Skillen, K.~G. Stassun, S. Udry, C. Watson

Physics and Astronomy

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4 Citations (Scopus)

Abstract

We report the discovery of two transiting hot Jupiters, WASP-65b (M$_pl$ = 1.55 plusmn 0.16 M$_J$; R$_pl$ = 1.11 plusmn 0.06 R$_J$), and WASP-75b (M$_pl$ = 1.07 plusmn 0.05 M$_J$; R$_pl$ = 1.27 plusmn 0.05 R$_J$). They orbit their host star every 2.311, and 2.484 days, respectively. The planet host WASP-65 is a G6 star (T$_eff$ = 5600 K, [Fe/H] = -0.07 plusmn 0.07, age gsim8 Gyr); WASP-75 is an F9 star (T$_eff$ = 6100 K, [Fe/H] = 0.07 plusmn 0.09, age 3 Gyr). WASP-65b is one of the densest known exoplanets in the mass range 0.1 and 2.0 M$_J$ ($$_pl$ = 1.13 plusmn 0.08 $$_J$), a mass range where a large fraction of planets are found to be inflated with respect to theoretical planet models. WASP-65b is one of only a handful of planets with masses of 1.5 M$_J$, a mass regime surprisingly underrepresented among the currently known hot Jupiters. The radius of WASP-75b is slightly inflated (lsim10 as compared to theoretical planet models with no core, and has a density similar to that of Saturn ($$_pl$ = 0.52 plusmn 0.06 $$_J$). Light curves are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/559/A36

Original language	English
Pages (from-to)	A36
Journal	Astronomy and Astrophysics
Volume	559
DOIs	https://doi.org/10.1051/0004-6361/201322314
Publication status	Published - 1 Nov 2013

Keywords

planetary systems, stars: individual: WASP-65, stars: individual: WASP-75

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10.1051/0004-6361/201322314

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Gómez Maqueo Chew, Y., Faedi, F., Pollacco, D., Brown, D. J. A., Doyle, A. P., Collier Cameron, A., Gillon, M., Lendl, M., Smalley, B., Triaud, A. H. M. J., West, R. G., Wheatley, P. J., Busuttil, R., Liebig, C., Anderson, D. R., Armstrong, D. J., Barros, S. C. C., Bento, J., Bochinski, J., ... Watson, C. (2013). Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii. Astronomy and Astrophysics, 559, A36. https://doi.org/10.1051/0004-6361/201322314

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title = "Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii",

abstract = "We report the discovery of two transiting hot Jupiters, WASP-65b (M$_pl$ = 1.55 plusmn 0.16 M$_J$; R$_pl$ = 1.11 plusmn 0.06 R$_J$), and WASP-75b (M$_pl$ = 1.07 plusmn 0.05 M$_J$; R$_pl$ = 1.27 plusmn 0.05 R$_J$). They orbit their host star every 2.311, and 2.484 days, respectively. The planet host WASP-65 is a G6 star (T$_eff$ = 5600 K, [Fe/H] = -0.07 plusmn 0.07, age gsim8 Gyr); WASP-75 is an F9 star (T$_eff$ = 6100 K, [Fe/H] = 0.07 plusmn 0.09, age 3 Gyr). WASP-65b is one of the densest known exoplanets in the mass range 0.1 and 2.0 M$_J$ ($$_pl$ = 1.13 plusmn 0.08 $$_J$), a mass range where a large fraction of planets are found to be inflated with respect to theoretical planet models. WASP-65b is one of only a handful of planets with masses of 1.5 M$_J$, a mass regime surprisingly underrepresented among the currently known hot Jupiters. The radius of WASP-75b is slightly inflated (lsim10 as compared to theoretical planet models with no core, and has a density similar to that of Saturn ($$_pl$ = 0.52 plusmn 0.06 $$_J$). Light curves are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/559/A36 ",

keywords = "planetary systems, stars: individual: WASP-65, stars: individual: WASP-75",

author = "{G{\'o}mez Maqueo Chew}, Y. and F. Faedi and D. Pollacco and D.~J.~A. Brown and A.~P. Doyle and {Collier Cameron}, A. and M. Gillon and M. Lendl and B. Smalley and A.~H.~M.~J. Triaud and R.~G. West and P.~J. Wheatley and R. Busuttil and C. Liebig and D.~R. Anderson and D.~J. Armstrong and S.~C.~C. Barros and J. Bento and J. Bochinski and V. Burwitz and L. Delrez and B. Enoch and A. Fumel and C.~A. Haswell and G. H{\'e}brard and C. Hellier and S. Holmes and E. Jehin and U. Kolb and P.~F.~L. Maxted and J. McCormac and G.~R.~M. Miller and A.~J. Norton and F. Pepe and D. Queloz and J. Rodr{\'i}guez and D. S{\'e}gransan and I. Skillen and K.~G. Stassun and S. Udry and C. Watson",

year = "2013",

month = nov,

day = "1",

doi = "10.1051/0004-6361/201322314",

language = "English",

volume = "559",

pages = "A36",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Gómez Maqueo Chew, Y, Faedi, F, Pollacco, D, Brown, DJA, Doyle, AP, Collier Cameron, A, Gillon, M, Lendl, M, Smalley, B, Triaud, AHMJ, West, RG, Wheatley, PJ, Busuttil, R, Liebig, C, Anderson, DR, Armstrong, DJ, Barros, SCC, Bento, J, Bochinski, J, Burwitz, V, Delrez, L, Enoch, B, Fumel, A, Haswell, CA, Hébrard, G, Hellier, C, Holmes, S, Jehin, E, Kolb, U, Maxted, PFL, McCormac, J, Miller, GRM, Norton, AJ, Pepe, F, Queloz, D, Rodríguez, J, Ségransan, D, Skillen, I, Stassun, KG, Udry, S & Watson, C 2013, 'Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii', Astronomy and Astrophysics, vol. 559, pp. A36. https://doi.org/10.1051/0004-6361/201322314

TY - JOUR

T1 - Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii

AU - Gómez Maqueo Chew, Y.

AU - Faedi, F.

AU - Pollacco, D.

AU - Brown, D.~J.~A.

AU - Doyle, A.~P.

AU - Collier Cameron, A.

AU - Gillon, M.

AU - Lendl, M.

AU - Smalley, B.

AU - Triaud, A.~H.~M.~J.

AU - West, R.~G.

AU - Wheatley, P.~J.

AU - Busuttil, R.

AU - Liebig, C.

AU - Anderson, D.~R.

AU - Armstrong, D.~J.

AU - Barros, S.~C.~C.

AU - Bento, J.

AU - Bochinski, J.

AU - Burwitz, V.

AU - Delrez, L.

AU - Enoch, B.

AU - Fumel, A.

AU - Haswell, C.~A.

AU - Hébrard, G.

AU - Hellier, C.

AU - Holmes, S.

AU - Jehin, E.

AU - Kolb, U.

AU - Maxted, P.~F.~L.

AU - McCormac, J.

AU - Miller, G.~R.~M.

AU - Norton, A.~J.

AU - Pepe, F.

AU - Queloz, D.

AU - Rodríguez, J.

AU - Ségransan, D.

AU - Skillen, I.

AU - Stassun, K.~G.

AU - Udry, S.

AU - Watson, C.

PY - 2013/11/1

Y1 - 2013/11/1

N2 - We report the discovery of two transiting hot Jupiters, WASP-65b (M$_pl$ = 1.55 plusmn 0.16 M$_J$; R$_pl$ = 1.11 plusmn 0.06 R$_J$), and WASP-75b (M$_pl$ = 1.07 plusmn 0.05 M$_J$; R$_pl$ = 1.27 plusmn 0.05 R$_J$). They orbit their host star every 2.311, and 2.484 days, respectively. The planet host WASP-65 is a G6 star (T$_eff$ = 5600 K, [Fe/H] = -0.07 plusmn 0.07, age gsim8 Gyr); WASP-75 is an F9 star (T$_eff$ = 6100 K, [Fe/H] = 0.07 plusmn 0.09, age 3 Gyr). WASP-65b is one of the densest known exoplanets in the mass range 0.1 and 2.0 M$_J$ ($$_pl$ = 1.13 plusmn 0.08 $$_J$), a mass range where a large fraction of planets are found to be inflated with respect to theoretical planet models. WASP-65b is one of only a handful of planets with masses of 1.5 M$_J$, a mass regime surprisingly underrepresented among the currently known hot Jupiters. The radius of WASP-75b is slightly inflated (lsim10 as compared to theoretical planet models with no core, and has a density similar to that of Saturn ($$_pl$ = 0.52 plusmn 0.06 $$_J$). Light curves are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/559/A36

AB - We report the discovery of two transiting hot Jupiters, WASP-65b (M$_pl$ = 1.55 plusmn 0.16 M$_J$; R$_pl$ = 1.11 plusmn 0.06 R$_J$), and WASP-75b (M$_pl$ = 1.07 plusmn 0.05 M$_J$; R$_pl$ = 1.27 plusmn 0.05 R$_J$). They orbit their host star every 2.311, and 2.484 days, respectively. The planet host WASP-65 is a G6 star (T$_eff$ = 5600 K, [Fe/H] = -0.07 plusmn 0.07, age gsim8 Gyr); WASP-75 is an F9 star (T$_eff$ = 6100 K, [Fe/H] = 0.07 plusmn 0.09, age 3 Gyr). WASP-65b is one of the densest known exoplanets in the mass range 0.1 and 2.0 M$_J$ ($$_pl$ = 1.13 plusmn 0.08 $$_J$), a mass range where a large fraction of planets are found to be inflated with respect to theoretical planet models. WASP-65b is one of only a handful of planets with masses of 1.5 M$_J$, a mass regime surprisingly underrepresented among the currently known hot Jupiters. The radius of WASP-75b is slightly inflated (lsim10 as compared to theoretical planet models with no core, and has a density similar to that of Saturn ($$_pl$ = 0.52 plusmn 0.06 $$_J$). Light curves are only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/559/A36

KW - planetary systems, stars: individual: WASP-65, stars: individual: WASP-75

U2 - 10.1051/0004-6361/201322314

DO - 10.1051/0004-6361/201322314

M3 - Article

SN - 0004-6361

VL - 559

SP - A36

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii

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Keywords

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