Luque, R., Nowak, G., Palle, E., Dai, F., Kaminski, A., Nagel, E., Hidalgo, D., Bauer, F., Lafarga, M., Livingston, J., Barragan, O., Hirano, T., Fridlund, M., Gandolfi, D., Justesen, A. B., Hjorth, M., Van Eylen, V., Winn, J. N., Esposito, M., Morales, J. C., Albrecht, S., Alonso, R., Amado, P. J., Beck, P., Caballero, J. A., Cabrera, J., Cochran, W. D., Csizmadia, Sz, Deeg, H., Eigmueller, Ph, Endl, M., Erikson, A., Fukui, A., Grziwa, S., Guenther, E. W., Hatzes, A. P., Knudstrup, E., Korth, J., Lam, K. W. F., Lund, M. N., Mathur, S., Montanes-Rodriguez, P., Narita, N., Nespral, D., Niraula, P., Paetzold, M., Persson, C. M., Prieto-Arranz, J., Quirrenbach, A., Rauer, H., Redfield, S., Reiners, A., Ribas, I and Smith, A. M. S. (2019). Detection and characterization of an ultra-dense sub-Neptunian planet orbiting the Sun-like star K2-292. Astron. Astrophys., 623. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

Full text not available from this repository.

Abstract

We present the discovery and characterization of a new transiting planet from Campaign 17 of the Kepler extended mission K2. The planet K2-292 b is a warm sub-Neptune on a 17 day orbit around a bright (V = 9.9 mag) solar-like G3 V star with a mass and radius of M-* = 1.00 +/- 0.03 M-circle dot and R-* = 1.09 +/- 0.03 R-circle dot , respectively. We modeled simultaneously the K2 photometry and CARMENES spectroscopic data and derived a radius of R-p = 2.63(-0.10)(+0.12)R(circle plus) and mass of M-p = 24.5(-4.4)(+4.4)M(circle plus), yielding a mean density of rho(p) = 7.4(-1.5)(+1.6)g cm(-3) , which makes it one of the densest sub-Neptunian planets known to date. We also detected a linear trend in the radial velocities of K2-292 (gamma(RV) = -0.40(-0.07)(+0.07) m s(-1) d(-1)) that suggests a long-period companion with a minimum mass on the order of 33 M-circle plus. If confirmed, it would support a formation scenario of K2-292 b by migration caused by Kozai-Lidov oscillations.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Luque, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nowak, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Palle, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dai, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kaminski, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nagel, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hidalgo, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bauer, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lafarga, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Livingston, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Barragan, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hirano, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fridlund, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gandolfi, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Justesen, A. B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hjorth, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van Eylen, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Winn, J. N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Esposito, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Morales, J. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Albrecht, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Alonso, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Amado, P. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beck, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Caballero, J. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cabrera, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cochran, W. D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Csizmadia, SzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Deeg, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eigmueller, PhUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Endl, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Erikson, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fukui, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Grziwa, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guenther, E. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hatzes, A. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knudstrup, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Korth, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lam, K. W. F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lund, M. N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mathur, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Montanes-Rodriguez, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Narita, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nespral, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Niraula, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Paetzold, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Persson, C. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Prieto-Arranz, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Quirrenbach, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rauer, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Redfield, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reiners, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ribas, IUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Smith, A. M. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-153811
DOI: 10.1051/0004-6361/201834952
Journal or Publication Title: Astron. Astrophys.
Volume: 623
Date: 2019
Publisher: EDP SCIENCES S A
Place of Publication: LES ULIS CEDEX A
ISSN: 1432-0746
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
COOL DWARF STARS; BALMER LINES; SNOW LINE; PHOTOMETRY; SYSTEMS; SEARCH; TRACKSMultiple languages
Astronomy & AstrophysicsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/15381

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item