elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

The Discovery and Mass Measurement of a New Ultra-short-period Planet: EPIC 228732031b

Dai, F. and Winn, J. N. and Wang, S. and Teske, J. and Burt, J. and Albrecht, S. and Barragan, O. and Chochran, W. and Endl, M and Fridlund, Malcolm and Hatzes, A. and Hirano, T. and Hirsch, L. and Johnson, M and Justesen, A. and Livingston, J. and Persson, C. M. and Prieto-Arranz, J. and Vanderburg, A. and Alonso, R and Antoniciello, G. and Arriagada, P. and Butler, R.P. and Cabrera, J and Crane, J. and Cusano, F. and Csizmadia, S and Deeg, H and Dietrich, S. and Eigmüller, P and Erikson, A and Everett, M. and Fukui, A. and Grziwa, S. and Guenther, E. and Henry, G. and Howell, S. and Johnson, J.A. and Korth, J. and Kuzuhara, M. and Narita, N. and Nespral, D. and Nowak, G. and Palle, E. and Pätzold, M. and Rauer, H and Rodriguez, P. and Shectman, S. and Smith, A. M. S. and Thompson, I. and Eylen, V. V. and Williamson, M. and Wittenmyer, R. (2017) The Discovery and Mass Measurement of a New Ultra-short-period Planet: EPIC 228732031b. Astronomical Journal, 154 (6), p. 17. American Astronomical Society. DOI: 10.3847/1538-3881/aa9065 ISSN 0004-6256

Full text not available from this repository.

Abstract

We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, EPIC 228732031b, was discovered in K2 Campaign 10. It has a radius of ${1.81}_{-0.12}^{+0.16}\,{R}_{\oplus }$ and orbits a G dwarf with a period of 8.9 hr. Radial velocities obtained with Magellan/PFS and TNG/HARPS-N show evidence for stellar activity along with orbital motion. We determined the planetary mass using two different methods: (1) the "floating chunk offset" method, based only on changes in velocity observed on the same night; and (2) a Gaussian process regression based on both the radial velocity and photometric time series. The results are consistent and lead to a mass measurement of $6.5\pm 1.6\,{M}_{\oplus }$ and a mean density of ${6.0}_{-2.7}^{+3.0}$ g cm−3.

Item URL in elib:https://elib.dlr.de/116396/
Document Type:Article
Title:The Discovery and Mass Measurement of a New Ultra-short-period Planet: EPIC 228732031b
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dai, F.department of physics and kavli institute for astrophysics and space research, massachusetts institute oftechnology, cambridge, ma 02139, usaUNSPECIFIED
Winn, J. N.princeton university, department of astrophysical sciences, 4 ivy lane, princeton, nj 08544 usaUNSPECIFIED
Wang, S.university of surrey, guildford, ukUNSPECIFIED
Teske, J.The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USAUNSPECIFIED
Burt, J.Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USAUNSPECIFIED
Albrecht, S.stellar astrophysics centre, department of physics and astronomy, aarhus university, ny munkegade 120, dk-8000 aarhus c, denmarkUNSPECIFIED
Barragan, O.dipartimento di fisica, universita degli studi di trino, via pietro giuria 1, 10125 torino, italyUNSPECIFIED
Chochran, W.Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TXUNSPECIFIED
Endl, Muniversity of texas at austinUNSPECIFIED
Fridlund, Malcolmresearch and scientific support department, esa, european space research and technology centre, noordwijk, the netherlandsUNSPECIFIED
Hatzes, A.thüringer landessternwarte tautenburgUNSPECIFIED
Hirano, T.department of earth and planetary sciences, tokyo institute of technology, 2-12-1 ookayama, meguro-ku, tokyo 152-8551, japanUNSPECIFIED
Hirsch, L.University of California at Berkeley, Berkeley, CA 94720, USAUNSPECIFIED
Johnson, MDepartment of Astronomy, The Ohio State University, 140 West 18th Ave., Columbus, OH 43210, USAUNSPECIFIED
Justesen, A.Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, DenmarkUNSPECIFIED
Livingston, J.department of astronomy, the university of tokyo, 7-3-1 bunkyo-ku, tokyo 113-0033, japanUNSPECIFIED
Persson, C. M.department of earth and space sciences, chalmers university of technology, onsala space observatory, 439 92, onsala, swedenUNSPECIFIED
Prieto-Arranz, J.instituto de astrofísica de canarias, 38205 la laguna, tenerife, spain | departamento de astrofisica, universidad de la laguna, 38206 la laguna, spainUNSPECIFIED
Vanderburg, A.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAUNSPECIFIED
Alonso, Rlaboratoire d'astrophysique de marseilleUNSPECIFIED
Antoniciello, G.dipartimento di fisica, università di torino, via p. giuria 1, i-10125 torino, italyUNSPECIFIED
Arriagada, P.Department of Terrestrial Magnetism, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington DC, 20015-1305, USAUNSPECIFIED
Butler, R.P.Department of Terrestrial Magnetism, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington DC, 20015-1305, USAUNSPECIFIED
Cabrera, Jjuan.cabrera (at) dlr.deUNSPECIFIED
Crane, J.The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USAUNSPECIFIED
Cusano, F.inaf-osservatorio astronomico di bologna, via ranzani 1, i-40127 bologna, italyUNSPECIFIED
Csizmadia, Sszilard.csizmadia (at) dlr.deUNSPECIFIED
Deeg, Hinstituto de astrofisica de canariasUNSPECIFIED
Dietrich, S.Department of Terrestrial Magnetism, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington DC, 20015-1305, USAUNSPECIFIED
Eigmüller, Pphilipp.eigmueller (at) dlr.deUNSPECIFIED
Erikson, Aanders.erikson (at) dlr.deUNSPECIFIED
Everett, M.National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719, USAUNSPECIFIED
Fukui, A.okayama astrophysical observatory, national astronomical observatory of japan, asakuchi, 719-0232 okayama,japanUNSPECIFIED
Grziwa, S.rheinisches institut furr umweltforschung an der universitaet zu koeln, aachener strasse 209, 50931 koeln, germanyUNSPECIFIED
Guenther, E.thüringer landessternwarte tautenburgUNSPECIFIED
Henry, G.Center of Excellence in Information Systems, Tennessee State University, Nashville, TN 37209, USAUNSPECIFIED
Howell, S.NASA Ames Research Center, Moffett Field, CA 94035, USAUNSPECIFIED
Johnson, J.A.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAUNSPECIFIED
Korth, J.rheinisches institut fuer umweltforschung an der universitaet zu koeln, aachener strasse 209, 50931 koeln, germanyUNSPECIFIED
Kuzuhara, M.astrobiology center, national institutes of natural sciences, 2-21-1 osawa, mitaka, tokyo 181-8588, japanUNSPECIFIED
Narita, N.department of astronomy, the university of tokyo, 7-3-1 bunkyo-ku, tokyo 113-0033, japanUNSPECIFIED
Nespral, D.instituto de astrofísica de canarias, 38205 la laguna, tenerife, spain | departamento de astrofisica, universidad de la laguna, 38206 la laguna, spainUNSPECIFIED
Nowak, G.instituto de astrofísicade canarias, 38205 la laguna, tenerife, spain | departamento de astrofisica, universidad de la laguna, 38206 la laguna, spainUNSPECIFIED
Palle, E.instituto de astrofísica de canarias, 38205 la laguna, tenerife, spain | departamento de astrofisica, universidad de la laguna, 38206 la laguna, spainUNSPECIFIED
Pätzold, M.institut für geophysik und meteorologie, universität kölnUNSPECIFIED
Rauer, Hheike.rauer (at) dlr.deUNSPECIFIED
Rodriguez, P.european space agency, villafranco del castillo, madrid, spainUNSPECIFIED
Shectman, S.The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USAUNSPECIFIED
Smith, A. M. S.alexis.smith (at) dlr.deUNSPECIFIED
Thompson, I.The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USAUNSPECIFIED
Eylen, V. V.leiden observatory, university of leiden, po box 9513, 2300 ra, leiden, the netherlandsUNSPECIFIED
Williamson, M.Center of Excellence in Information Systems, Tennessee State University, Nashville, TN 37209, USAUNSPECIFIED
Wittenmyer, R.University of Southern Queensland, Computational Science and Engineering Research Centre, Toowoomba QLD AustraliaUNSPECIFIED
Date:2017
Journal or Publication Title:Astronomical Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:154
DOI :10.3847/1538-3881/aa9065
Page Range:p. 17
Publisher:American Astronomical Society
ISSN:0004-6256
Status:Published
Keywords:planetary systems – stars: individual (EPIC 228732031)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Project PLATO
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Stiebeler, Ulrike
Deposited On:30 Nov 2017 14:30
Last Modified:10 Jan 2019 15:46

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.