Precise masses for the transiting planetary system HD 106315 with HARPS

Context. The multi-planetary system HD 106315 was recently found in K2 data. The planets have periods of P b ∼ 9.55 and P c ∼ 21.06 days, and radii of r b = 2.44 ± 0.17 R ⊕ and r c = 4.35 ± 0.23 R ⊕ . The brightness of the host star (V = 9.0 mag) makes it an excellent target for transmission spectro...

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Autores principales: Barros, S.C.C., Gosselin, H., Lillo-Box, J., Bayliss, D., Delgado Mena, E., Brugger, B., Santerne, A., Armstrong, D.J., Adibekyan, V., Armstrong, J.D., Barrado, D., Bento, J., Boisse, I., Bonomo, A.S., Bouchy, F., Brown, D.J.A., Cochran, W.D., Collier Cameron, A., Deleuil, M., Demangeon, O., Díaz, R.F., Doyle, A., Dumusque, X., Ehrenreich, D., Espinoza, N., Faedi, F., Faria, J.P., Figueira, P., Foxell, E., Hébrard, G., Hojjatpanah, S., Jackman, J., Lendl, M., Ligi, R., Lovis, C., Melo, C., Mousis, O., Neal, J.J., Osborn, H.P., Pollacco, D., Santos, N.C., Sefako, R., Shporer, A., Sousa, S.G., Triaud, A.H.M.J., Udry, S., Vigan, A., Wyttenbach, A.
Formato: JOUR
Materias:
Planets and satellites: Composition
Planets and satellites: Detection
Planets and satellites: Fundamental parameters
Stars: Individual: HD 106315
Techniques: Photometric
Techniques: Radial velocities
Atmospheric composition
Digital television
Flexible couplings
Lead
Photometry
Planets
Stars
Planets and satellites: compositions
Planets and satellites: detections
Planets and satellites: fundamental parameters
Stars: individual
Techniques: photometric
Techniques: radial velocities
Satellites
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00046361_v608_n_p_Barros
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00046361_v608_n_p_Barros
record_format dspace
spelling todo:paper_00046361_v608_n_p_Barros2023-10-03T14:01:17Z Precise masses for the transiting planetary system HD 106315 with HARPS Barros, S.C.C. Gosselin, H. Lillo-Box, J. Bayliss, D. Delgado Mena, E. Brugger, B. Santerne, A. Armstrong, D.J. Adibekyan, V. Armstrong, J.D. Barrado, D. Bento, J. Boisse, I. Bonomo, A.S. Bouchy, F. Brown, D.J.A. Cochran, W.D. Collier Cameron, A. Deleuil, M. Demangeon, O. Díaz, R.F. Doyle, A. Dumusque, X. Ehrenreich, D. Espinoza, N. Faedi, F. Faria, J.P. Figueira, P. Foxell, E. Hébrard, G. Hojjatpanah, S. Jackman, J. Lendl, M. Ligi, R. Lovis, C. Melo, C. Mousis, O. Neal, J.J. Osborn, H.P. Pollacco, D. Santos, N.C. Sefako, R. Shporer, A. Sousa, S.G. Triaud, A.H.M.J. Udry, S. Vigan, A. Wyttenbach, A. Planets and satellites: Composition Planets and satellites: Detection Planets and satellites: Fundamental parameters Stars: Individual: HD 106315 Techniques: Photometric Techniques: Radial velocities Atmospheric composition Digital television Flexible couplings Lead Photometry Planets Stars Planets and satellites: compositions Planets and satellites: detections Planets and satellites: fundamental parameters Stars: individual Techniques: photometric Techniques: radial velocities Satellites Context. The multi-planetary system HD 106315 was recently found in K2 data. The planets have periods of P b ∼ 9.55 and P c ∼ 21.06 days, and radii of r b = 2.44 ± 0.17 R ⊕ and r c = 4.35 ± 0.23 R ⊕ . The brightness of the host star (V = 9.0 mag) makes it an excellent target for transmission spectroscopy. However, to interpret transmission spectra it is crucial to measure the planetary masses. Aims. We obtained high precision radial velocities for HD 106315 to determine the mass of the two transiting planets discovered with Kepler K2. Our successful observation strategy was carefully tailored to mitigate the effect of stellar variability. Methods. We modelled the new radial velocity data together with the K2 transit photometry and a new ground-based partial transit of HD 106315c to derive system parameters. Results. We estimate the mass of HD 106315b to be 12.6 ± 3.2 M ⊕ and the density to be 4.7 ± 1.7 g cm -3 , while for HD 106315c we estimate a mass of 15.2 ± 3.7 M ⊕ and a density of 1.01 ± 0.29 g cm -3 . Hence, despite planet c having a radius almost twice as large as planet b, their masses are consistent with one another. Conclusions. We conclude that HD 106315c has a thick hydrogen-helium gaseous envelope. A detailed investigation of HD 106315b using a planetary interior model constrains the core mass fraction to be 5-29%, and the water mass fraction to be 10-50%. An alternative, not considered by our model, is that HD 106315b is composed of a large rocky core with a thick H-He envelope. Transmission spectroscopy of these planets will give insight into their atmospheric compositions and also help constrain their core compositions. © ESO, 2017. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00046361_v608_n_p_Barros
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Planets and satellites: Composition
Planets and satellites: Detection
Planets and satellites: Fundamental parameters
Stars: Individual: HD 106315
Techniques: Photometric
Techniques: Radial velocities
Atmospheric composition
Digital television
Flexible couplings
Lead
Photometry
Planets
Stars
Planets and satellites: compositions
Planets and satellites: detections
Planets and satellites: fundamental parameters
Stars: individual
Techniques: photometric
Techniques: radial velocities
Satellites
spellingShingle Planets and satellites: Composition
Planets and satellites: Detection
Planets and satellites: Fundamental parameters
Stars: Individual: HD 106315
Techniques: Photometric
Techniques: Radial velocities
Atmospheric composition
Digital television
Flexible couplings
Lead
Photometry
Planets
Stars
Planets and satellites: compositions
Planets and satellites: detections
Planets and satellites: fundamental parameters
Stars: individual
Techniques: photometric
Techniques: radial velocities
Satellites
Barros, S.C.C.
Gosselin, H.
Lillo-Box, J.
Bayliss, D.
Delgado Mena, E.
Brugger, B.
Santerne, A.
Armstrong, D.J.
Adibekyan, V.
Armstrong, J.D.
Barrado, D.
Bento, J.
Boisse, I.
Bonomo, A.S.
Bouchy, F.
Brown, D.J.A.
Cochran, W.D.
Collier Cameron, A.
Deleuil, M.
Demangeon, O.
Díaz, R.F.
Doyle, A.
Dumusque, X.
Ehrenreich, D.
Espinoza, N.
Faedi, F.
Faria, J.P.
Figueira, P.
Foxell, E.
Hébrard, G.
Hojjatpanah, S.
Jackman, J.
Lendl, M.
Ligi, R.
Lovis, C.
Melo, C.
Mousis, O.
Neal, J.J.
Osborn, H.P.
Pollacco, D.
Santos, N.C.
Sefako, R.
Shporer, A.
Sousa, S.G.
Triaud, A.H.M.J.
Udry, S.
Vigan, A.
Wyttenbach, A.
Precise masses for the transiting planetary system HD 106315 with HARPS
topic_facet Planets and satellites: Composition
Planets and satellites: Detection
Planets and satellites: Fundamental parameters
Stars: Individual: HD 106315
Techniques: Photometric
Techniques: Radial velocities
Atmospheric composition
Digital television
Flexible couplings
Lead
Photometry
Planets
Stars
Planets and satellites: compositions
Planets and satellites: detections
Planets and satellites: fundamental parameters
Stars: individual
Techniques: photometric
Techniques: radial velocities
Satellites
description Context. The multi-planetary system HD 106315 was recently found in K2 data. The planets have periods of P b ∼ 9.55 and P c ∼ 21.06 days, and radii of r b = 2.44 ± 0.17 R ⊕ and r c = 4.35 ± 0.23 R ⊕ . The brightness of the host star (V = 9.0 mag) makes it an excellent target for transmission spectroscopy. However, to interpret transmission spectra it is crucial to measure the planetary masses. Aims. We obtained high precision radial velocities for HD 106315 to determine the mass of the two transiting planets discovered with Kepler K2. Our successful observation strategy was carefully tailored to mitigate the effect of stellar variability. Methods. We modelled the new radial velocity data together with the K2 transit photometry and a new ground-based partial transit of HD 106315c to derive system parameters. Results. We estimate the mass of HD 106315b to be 12.6 ± 3.2 M ⊕ and the density to be 4.7 ± 1.7 g cm -3 , while for HD 106315c we estimate a mass of 15.2 ± 3.7 M ⊕ and a density of 1.01 ± 0.29 g cm -3 . Hence, despite planet c having a radius almost twice as large as planet b, their masses are consistent with one another. Conclusions. We conclude that HD 106315c has a thick hydrogen-helium gaseous envelope. A detailed investigation of HD 106315b using a planetary interior model constrains the core mass fraction to be 5-29%, and the water mass fraction to be 10-50%. An alternative, not considered by our model, is that HD 106315b is composed of a large rocky core with a thick H-He envelope. Transmission spectroscopy of these planets will give insight into their atmospheric compositions and also help constrain their core compositions. © ESO, 2017.
format JOUR
author Barros, S.C.C.
Gosselin, H.
Lillo-Box, J.
Bayliss, D.
Delgado Mena, E.
Brugger, B.
Santerne, A.
Armstrong, D.J.
Adibekyan, V.
Armstrong, J.D.
Barrado, D.
Bento, J.
Boisse, I.
Bonomo, A.S.
Bouchy, F.
Brown, D.J.A.
Cochran, W.D.
Collier Cameron, A.
Deleuil, M.
Demangeon, O.
Díaz, R.F.
Doyle, A.
Dumusque, X.
Ehrenreich, D.
Espinoza, N.
Faedi, F.
Faria, J.P.
Figueira, P.
Foxell, E.
Hébrard, G.
Hojjatpanah, S.
Jackman, J.
Lendl, M.
Ligi, R.
Lovis, C.
Melo, C.
Mousis, O.
Neal, J.J.
Osborn, H.P.
Pollacco, D.
Santos, N.C.
Sefako, R.
Shporer, A.
Sousa, S.G.
Triaud, A.H.M.J.
Udry, S.
Vigan, A.
Wyttenbach, A.
author_facet Barros, S.C.C.
Gosselin, H.
Lillo-Box, J.
Bayliss, D.
Delgado Mena, E.
Brugger, B.
Santerne, A.
Armstrong, D.J.
Adibekyan, V.
Armstrong, J.D.
Barrado, D.
Bento, J.
Boisse, I.
Bonomo, A.S.
Bouchy, F.
Brown, D.J.A.
Cochran, W.D.
Collier Cameron, A.
Deleuil, M.
Demangeon, O.
Díaz, R.F.
Doyle, A.
Dumusque, X.
Ehrenreich, D.
Espinoza, N.
Faedi, F.
Faria, J.P.
Figueira, P.
Foxell, E.
Hébrard, G.
Hojjatpanah, S.
Jackman, J.
Lendl, M.
Ligi, R.
Lovis, C.
Melo, C.
Mousis, O.
Neal, J.J.
Osborn, H.P.
Pollacco, D.
Santos, N.C.
Sefako, R.
Shporer, A.
Sousa, S.G.
Triaud, A.H.M.J.
Udry, S.
Vigan, A.
Wyttenbach, A.
author_sort Barros, S.C.C.
title Precise masses for the transiting planetary system HD 106315 with HARPS
title_short Precise masses for the transiting planetary system HD 106315 with HARPS
title_full Precise masses for the transiting planetary system HD 106315 with HARPS
title_fullStr Precise masses for the transiting planetary system HD 106315 with HARPS
title_full_unstemmed Precise masses for the transiting planetary system HD 106315 with HARPS
title_sort precise masses for the transiting planetary system hd 106315 with harps
url http://hdl.handle.net/20.500.12110/paper_00046361_v608_n_p_Barros
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