A super-massive Neptune-sized planet
- Naponiello, L.
- Mancini, L.
- Sozzetti, A.
- Bonomo, A. S.
- Morbidelli, A.
- Dou, J.
- Zeng, L.
- Leinhardt, Z. M.
- Biazzo, K.
- Cubillos, P.
- Pinamonti, M.
- Locci, D.
- Maggio, A.
- Damasso, M.
- Lanza, A. F.
- Lissauer, J. J.
- Bignamini, A.
- Boschin, W.
- Bouma, L. G.
- Carter, P. J.
- Ciardi, D. R.
- Collins, K. A.
- Cosentino, R.
- Crossfield, I.
- Desidera, S.
- Dumusque, X.
- Fiorenzano, A. F. M.
- Fukui, A.
- Giacobbe, P.
- Gnilka, C. L.
- Ghedina, A.
- Gonzales, E.
- Guilluy, G.
- Harutyunyan, A.
- Howell, S. B.
- Jenkins, J. M.
- Lund, M. B.
- Jensen, E. L. N.
- Kielkopf, J. F.
- Lester, K. V.
- Malavolta, L.
- Mann, A. W.
- Matson, R. A.
- Matthews, E. C.
- Nardiello, D.
- Narita, N.
- Pace, E.
- Pagano, I.
- Palle, E.
- Pedani, M.
- Seager, S.
- Schlieder, J. E.
- Schwarz, R. P.
- Shporer, A.
- Twicken, J. D.
- Winn, J. N.
- Ziegler, C.
- Zingales, T.
DOIAbstract
Neptune-sized planets exhibit a wide range of compositions and densities, depending onf cators related to their formation and evolution history, such as the distance from their host stars and atmospheric escape processes. They can vary from relatively low-density planets with thick hydrogen-helium atmospheres to higher-density planets with a substantial amount of water or a rocky interior with a thinner atmosphere, such as HD 95338 b, TOI-849 b and TOI-2196 b. The discovery of exoplanets in the hot-Neptune desert, a region close to the host stars with a deficit of Neptune-sized planets, provides insights into the formation and evolution of planetary systems, including the existence of this region itself. Here we show observations of the tra...
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