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From Dense Hot Jupiter to Low Density Neptune: The Discovery of WASP-127b, WASP-136b and WASP-138b

Authors: Lam, K. W. F.; Faedi, F.; Brown, D. J. A.; Anderson, D. R.; Delrez, Laetitia; Gillon, Michaël; Hébrard, G.; +34 Authors

From Dense Hot Jupiter to Low Density Neptune: The Discovery of WASP-127b, WASP-136b and WASP-138b

Abstract

We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18Mj and radius 1.35Rj. This is one of the least massive planets discovered by the WASP project. It orbits a bright host star (V = 10.16) of spectral type G5 with a period of 4.17 days.WASP-127b is a low density planet which has an extended atmosphere with a scale height of 2500+/-400 km, making it an ideal candidate for transmission spectroscopy. WASP-136b and WASP-138b are both hot Jupiters with mass and radii of 1.51 Mj and 1.38 Rj, and 1.22 Mj and 1.09 Rj, respectively. WASP-136b is in a 5.22-day orbit around an F9 subgiant star with a mass of 1.41 Msun and a radius of 2.21 Rsun. The discovery of WASP-136b could help constraint the characteristics of the giant planet population around evolved stars. WASP-138b orbits an F7 star with a period of 3.63 days. Its radius agrees with theoretical values from standard models, suggesting the presence of a heavy element core with a mass of 10 Mearth. The discovery of these new planets helps in exploring the diverse compositional range of short-period planets, and will aid our understanding of the physical characteristics of both gas giants and low density planets.

Country
Belgium
Keywords

Aérospatiale, astronomie & astrophysique, Physical, chemical, mathematical & earth Sciences, Physique, chimie, mathématiques & sciences de la terre, Space science, astronomy & astrophysics, Astrophysics - Earth and Planetary Astrophysics

26 references, page 1 of 3

Alsubai, K. A., Parley, N. R., Bramich, D. M., et al. 2013, Acta Astron., 63, 465 Anderson, D. R., Hellier, C., Gillon, M., et al. 2010, ApJ, 709, 159 Asplund, M., Grevesse, N., Sauval, A. J., & Scott, P. 2009, ARA&A, 47, 481 Bakos, G. Á., Lázár, J., Papp, I., Sári, P., & Green, E. M. 2002, PASP, 114, 974 Bakos, G. Á., Torres, G., Pál, A., et al. 2010, ApJ, 710, 1724 Bakos, G. Á., Csubry, Z., Penev, K., et al. 2013, PASP, 125, 154 Bakos, G. Á., Hartman, J. D., Torres, G., et al. 2016, AAS, submitted [arXiv:1606.04556]

Baranne, A., Queloz, D., Mayor, M., et al. 1996, A&AS, 119, 373 Barnes, S. A. 2007, ApJ, 669, 1167

Barros, S. C. C., Brown, D. J. A., Hébrard, G., et al. 2016, A&A, 593, A113 Batygin, K., Stevenson, D. J., & Bodenheimer, P. H. 2011, ApJ, 738, 1 Bayliss, D., Hartman, J. D., Bakos, G. Á., et al. 2015, AJ, 150, 49 Bodenheimer, P., Lin, D. N. C., & Mardling, R. A. 2001, ApJ, 548, 466 Bodenheimer, P., Laughlin, G., & Lin, D. N. C. 2003, ApJ, 592, 555 Borucki, W. J., Koch, D., Basri, G., et al. 2010, Science, 327, 977 Borucki, W. J., Koch, D. G., Basri, G., et al. 2011, ApJ, 736, 19 Bouchy, F., Hébrard, G., Udry, S., et al. 2009, A&A, 505, 853 Burrows, A., Hubeny, I., Budaj, J., & Hubbard, W. B. 2007, ApJ, 661, 502 Claret, A. 2000, A&A, 363, 1081

Claret, A. 2004, A&A, 428, 1001

Collier Cameron, A., Pollacco, D., Street, R. A., et al. 2006, MNRAS, 373, 799 Collier Cameron, A., Wilson, D. M., West, R. G., et al. 2007, MNRAS, 380, 1230

Doyle, A. P., Smalley, B., Maxted, P. F. L., et al. 2013, MNRAS, 428, 3164 Doyle, A. P., Davies, G. R., Smalley, B., Chaplin, W. J., & Elsworth, Y. 2014, MNRAS, 444, 3592

Dressing, C. D., & Charbonneau, D. 2013, ApJ, 767, 95 Enoch, B., Anderson, D. R., Barros, S. C. C., et al. 2011, AJ, 142, 86 Fabrycky, D., & Tremaine, S. 2007, ApJ, 669, 1298

Faedi, F., Barros, S. C. C., Anderson, D. R., et al. 2011, A&A, 531, A40 Faedi, F., Pollacco, D., Barros, S. C. C., et al. 2013, A&A, 551, A73 Ford, E. B., & Rasio, F. A. 2008, ApJ, 686, 621

Fortney, J. J., Marley, M. S., & Barnes, J. W. 2007, ApJ, 659, 1661 Fressin, F., Torres, G., Charbonneau, D., et al. 2013, ApJ, 766, 81 Gillon, M., Jehin, E., Magain, P., et al. 2011, in EpJ Web Conf., 11, 06002 Gillon, M., Anderson, D. R., Collier-Cameron, A., et al. 2013, A&A, 552, A82 Grunblatt, S. K., Huber, D., Gaidos, E. J., et al. 2016, ApJ, 152, 185 Guillot, T., Burrows, A., Hubbard, W. B., Lunine, J. I., & Saumon, D. 1996, ApJ, 459, L35

Hartman, J. D., Bakos, G. Á., Kipping, D. M., et al. 2011, ApJ, 728, 138 Hastings, W. K. 1970, Biometrika, 57, 97

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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