Super-earth of 8 M[earth] in a 2.2-day orbit around the K5V star K2-216
The KESPRINT consortium identified K2-216 as a planetary candidate host star in the K2 space mission Campaign 8 field with a transiting super-Earth. The planet has recently been validated as well. Our aim was to confirm the detection and derive the main physical characteristics of K2-216b, including...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
9 Oct 2018
|
| In: |
Arxiv
|
| Online Access: | Verlag, Volltext: http://arxiv.org/abs/1805.04774
|
| Author Notes: | C.M. Persson, M. Fridlund, O. Barragán, F. Dai, D. Gandolfi, A.P. Hatzes, T. Hirano, S. Grziwa, J. Korth, J. Prieto-Arranz, L. Fossati, V. Van Eylen, A.B. Justesen, J. Livingston, D. Kubyshkina, H.J. Deeg, E.W. Guenther, G. Nowak, J. Cabrera, Ph. Eigmüller, Sz. Csizmadia, A.M.S. Smith, A. Erikson, S. Albrecht, R. Alonso Sobrino, W.D. Cochran, M. Endl, M. Esposito, A. Fukui, P. Heeren, D. Hidalgo, M. Hjorth, M. Kuzuhara, N. Narita, D. Nespral, E. Palle, M. Pätzold, H. Rauer, F. Rodler, and J.N. Winn |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1586629662 | ||
| 003 | DE-627 | ||
| 005 | 20220815094148.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 190128s2018 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)1586629662 | ||
| 035 | |a (DE-576)516629662 | ||
| 035 | |a (DE-599)BSZ516629662 | ||
| 035 | |a (OCoLC)1341034462 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Persson, Carina M. |e VerfasserIn |0 (DE-588)1180776232 |0 (DE-627)1067856803 |0 (DE-576)516629646 |4 aut | |
| 245 | 1 | 0 | |a Super-earth of 8 M[earth] in a 2.2-day orbit around the K5V star K2-216 |c C.M. Persson, M. Fridlund, O. Barragán, F. Dai, D. Gandolfi, A.P. Hatzes, T. Hirano, S. Grziwa, J. Korth, J. Prieto-Arranz, L. Fossati, V. Van Eylen, A.B. Justesen, J. Livingston, D. Kubyshkina, H.J. Deeg, E.W. Guenther, G. Nowak, J. Cabrera, Ph. Eigmüller, Sz. Csizmadia, A.M.S. Smith, A. Erikson, S. Albrecht, R. Alonso Sobrino, W.D. Cochran, M. Endl, M. Esposito, A. Fukui, P. Heeren, D. Hidalgo, M. Hjorth, M. Kuzuhara, N. Narita, D. Nespral, E. Palle, M. Pätzold, H. Rauer, F. Rodler, and J.N. Winn |
| 246 | 3 | 0 | |a ⊕ eight two |
| 246 | 3 | 3 | |a Super-earth of 8 M earth in a 2.2-day orbit around the K5V star K2-216 |
| 264 | 1 | |c 9 Oct 2018 | |
| 300 | |a 18 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Im Text ergibt sich "Mearth" aus M und dem Erdsymbol (Radkreuzzeichen) | ||
| 500 | |a Gesehen am 07.08.2020 | ||
| 520 | |a The KESPRINT consortium identified K2-216 as a planetary candidate host star in the K2 space mission Campaign 8 field with a transiting super-Earth. The planet has recently been validated as well. Our aim was to confirm the detection and derive the main physical characteristics of K2-216b, including the mass. We performed a series of follow-up observations: high resolution imaging with the FastCam camera at the TCS, the Infrared Camera and Spectrograph at Subaru, and high resolution spectroscopy with HARPS (ESO, La Silla), HARPS-N (TNG), and FIES (NOT). The stellar spectra were analyzed with the SpecMatch-Emp and SME codes to derive the stellar fundamental properties. We analyzed the K2 light curve with the Pyaneti software. The radial-velocity measurements were modelled with both a Gaussian process (GP) regression and the floating chunk offset (FCO) technique to simultaneously model the planetary signal and correlated noise associated with stellar activity. Imaging confirms that K2-216 is a single star. Our analysis discloses that the star is a moderately active K5V star of mass 0.70+/-0.03 Msun and radius 0.72+/-0.03 Rsun. Planet b is found to have a radius of 1.75+0.17-0.10 Rearth and a 2.17-day orbit in agreement with previous results. We find consistent results for the planet mass from both models: 7.4+/-2.2 Mearth from the GP regression, and 8.0+/-1.6 Mearth from the FCO technique, which implies that this planet is a super-Earth. The planet parameters put planet b in the middle of, or just below, the gap of the radius distribution of small planets. The density is consistent with a rocky composition of primarily iron and magnesium silicate. In agreement with theoretical predictions, we find that the planet is a remnant core, stripped of its atmosphere, and is one of the largest planets found that has lost its atmosphere. | ||
| 650 | 4 | |a Astrophysics - Earth and Planetary Astrophysics | |
| 700 | 1 | |a Heeren, Paul |d 1989- |e VerfasserIn |0 (DE-588)112131273X |0 (DE-627)874236118 |0 (DE-576)480809259 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Arxiv |d Ithaca, NY : Cornell University, 1991 |g (2018) Artikel-Nummer 1805.04774, 18 Seiten |h Online-Ressource |w (DE-627)509006531 |w (DE-600)2225896-6 |w (DE-576)28130436X |7 nnas |a Super-earth of 8 M[earth] in a 2.2-day orbit around the K5V star K2-216 |
| 773 | 1 | 8 | |g year:2018 |g extent:18 |a Super-earth of 8 M[earth] in a 2.2-day orbit around the K5V star K2-216 |
| 856 | 4 | 0 | |u http://arxiv.org/abs/1805.04774 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20190128 | ||
| 993 | |a Article | ||
| 998 | |g 112131273X |a Heeren, Paul |m 112131273X:Heeren, Paul |d 130000 |e 130000PH112131273X |k 0/130000/ |p 28 | ||
| 999 | |a KXP-PPN1586629662 |e 3049311568 | ||
| BIB | |a Y | ||
| JSO | |a {"titleAlt":[{"title":"Super-earth of 8 M earth in a 2.2-day orbit around the K5V star K2-216"}],"language":["eng"],"recId":"1586629662","note":["Im Text ergibt sich \"Mearth\" aus M und dem Erdsymbol (Radkreuzzeichen)","Gesehen am 07.08.2020"],"type":{"media":"Online-Ressource","bibl":"chapter"},"title":[{"title_sort":"Super-earth of 8 M[earth] in a 2.2-day orbit around the K5V star K2-216","title":"Super-earth of 8 M[earth] in a 2.2-day orbit around the K5V star K2-216"}],"person":[{"given":"Carina M.","family":"Persson","role":"aut","roleDisplay":"VerfasserIn","display":"Persson, Carina M."},{"role":"aut","display":"Heeren, Paul","roleDisplay":"VerfasserIn","given":"Paul","family":"Heeren"}],"relHost":[{"id":{"zdb":["2225896-6"],"eki":["509006531"]},"origin":[{"dateIssuedKey":"1991","publisher":"Cornell University ; Arxiv.org","dateIssuedDisp":"1991-","publisherPlace":"Ithaca, NY ; [Erscheinungsort nicht ermittelbar]"}],"physDesc":[{"extent":"Online-Ressource"}],"title":[{"title_sort":"Arxiv","title":"Arxiv"}],"language":["eng"],"recId":"509006531","note":["Gesehen am 28.05.2024"],"disp":"Super-earth of 8 M[earth] in a 2.2-day orbit around the K5V star K2-216Arxiv","type":{"media":"Online-Ressource","bibl":"edited-book"},"titleAlt":[{"title":"Arxiv.org"},{"title":"Arxiv.org e-print archive"},{"title":"Arxiv e-print archive"},{"title":"De.arxiv.org"}],"part":{"extent":"18","text":"(2018) Artikel-Nummer 1805.04774, 18 Seiten","year":"2018"},"pubHistory":["1991 -"]}],"physDesc":[{"extent":"18 S."}],"id":{"eki":["1586629662"]},"origin":[{"dateIssuedDisp":"9 Oct 2018","dateIssuedKey":"2018"}],"name":{"displayForm":["C.M. Persson, M. Fridlund, O. Barragán, F. Dai, D. Gandolfi, A.P. Hatzes, T. Hirano, S. Grziwa, J. Korth, J. Prieto-Arranz, L. Fossati, V. Van Eylen, A.B. Justesen, J. Livingston, D. Kubyshkina, H.J. Deeg, E.W. Guenther, G. Nowak, J. Cabrera, Ph. Eigmüller, Sz. Csizmadia, A.M.S. Smith, A. Erikson, S. Albrecht, R. Alonso Sobrino, W.D. Cochran, M. Endl, M. Esposito, A. Fukui, P. Heeren, D. Hidalgo, M. Hjorth, M. Kuzuhara, N. Narita, D. Nespral, E. Palle, M. Pätzold, H. Rauer, F. Rodler, and J.N. Winn"]}} | ||
| SRT | |a PERSSONCARSUPEREARTH9201 | ||