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