An abundance of small exoplanets around stars with a wide range of metallicities

Research output: Contribution to journal › Letter › Research › peer-review

Standard

An abundance of small exoplanets around stars with a wide range of metallicities. / Buchhave, Lars A.; Latham, David W.; Johansen, Anders; Bizzarro, Martin; Torres, Guillermo; Rowe, Jason F.; Batalha, Natalie M.; Borucki, William J.; Brugamyer, Erik; Caldwell, Caroline; Bryson, Stephen T.; Ciardi, David R.; Cochran, William D.; Endl, Michael; Esquerdo, Gilbert A.; Ford, Eric B.; Geary, John C.; Gilliland, Ronald L.; Hansen, Terese; Isaacson, Howard; Laird, John B.; Lucas, Philip W.; Marcy, Geoffrey W.; Morse, Jon A.; Robertson, Paul; Shporer, Avi; Stefanik, Robert P.; Still, Martin; Quinn, Samuel N.

In: Nature, Vol. 486, No. 7403, 2012, p. 375-377.

Research output: Contribution to journal › Letter › Research › peer-review

Harvard

Buchhave, LA, Latham, DW, Johansen, A, Bizzarro, M, Torres, G, Rowe, JF, Batalha, NM, Borucki, WJ, Brugamyer, E, Caldwell, C, Bryson, ST, Ciardi, DR, Cochran, WD, Endl, M, Esquerdo, GA, Ford, EB, Geary, JC, Gilliland, RL, Hansen, T, Isaacson, H, Laird, JB, Lucas, PW, Marcy, GW, Morse, JA, Robertson, P, Shporer, A, Stefanik, RP, Still, M & Quinn, SN 2012, 'An abundance of small exoplanets around stars with a wide range of metallicities', Nature, vol. 486, no. 7403, pp. 375-377. https://doi.org/10.1038/nature11121

APA

Buchhave, L. A., Latham, D. W., Johansen, A., Bizzarro, M., Torres, G., Rowe, J. F., Batalha, N. M., Borucki, W. J., Brugamyer, E., Caldwell, C., Bryson, S. T., Ciardi, D. R., Cochran, W. D., Endl, M., Esquerdo, G. A., Ford, E. B., Geary, J. C., Gilliland, R. L., Hansen, T., ... Quinn, S. N. (2012). An abundance of small exoplanets around stars with a wide range of metallicities. Nature, 486(7403), 375-377. https://doi.org/10.1038/nature11121

Vancouver

Buchhave LA, Latham DW, Johansen A, Bizzarro M, Torres G, Rowe JF et al. An abundance of small exoplanets around stars with a wide range of metallicities. Nature. 2012;486(7403):375-377. https://doi.org/10.1038/nature11121

Author

Buchhave, Lars A. ; Latham, David W. ; Johansen, Anders ; Bizzarro, Martin ; Torres, Guillermo ; Rowe, Jason F. ; Batalha, Natalie M. ; Borucki, William J. ; Brugamyer, Erik ; Caldwell, Caroline ; Bryson, Stephen T. ; Ciardi, David R. ; Cochran, William D. ; Endl, Michael ; Esquerdo, Gilbert A. ; Ford, Eric B. ; Geary, John C. ; Gilliland, Ronald L. ; Hansen, Terese ; Isaacson, Howard ; Laird, John B. ; Lucas, Philip W. ; Marcy, Geoffrey W. ; Morse, Jon A. ; Robertson, Paul ; Shporer, Avi ; Stefanik, Robert P. ; Still, Martin ; Quinn, Samuel N. / An abundance of small exoplanets around stars with a wide range of metallicities. In: Nature. 2012 ; Vol. 486, No. 7403. pp. 375-377.

Bibtex

@article{13cca52dd7d64e3fa209dc4d6af1fe1e,
title = "An abundance of small exoplanets around stars with a wide range of metallicities",
abstract = "The abundance of heavy elements (metallicity) in the photospheres of stars similar to the Sun provides a fossil record of the chemical composition of the initial protoplanetary disk. Metal-rich stars are much more likely to harbour gas giant planets, supporting the model that planets form by accumulation of dust and ice particles. Recent ground-based surveys suggest that this correlation is weakened for Neptunian-sized planets. However, how the relationship between size and metallicity extends into the regime of terrestrial-sized exoplanets is unknown. Here we report spectroscopic metallicities of the host stars of 226 small exoplanet candidates discovered by NASAs Kepler mission, including objects that are comparable in size to the terrestrial planets in the Solar System. We find that planets with radii less than four Earth radii form around host stars with a wide range of metallicities (but on average a metallicity close to that of the Sun), whereas large planets preferentially form around stars with higher metallicities. This observation suggests that terrestrial planets may be widespread in the disk of the Galaxy, with no special requirement of enhanced metallicity for their formation.",
author = "Buchhave, {Lars A.} and Latham, {David W.} and Anders Johansen and Martin Bizzarro and Guillermo Torres and Rowe, {Jason F.} and Batalha, {Natalie M.} and Borucki, {William J.} and Erik Brugamyer and Caroline Caldwell and Bryson, {Stephen T.} and Ciardi, {David R.} and Cochran, {William D.} and Michael Endl and Esquerdo, {Gilbert A.} and Ford, {Eric B.} and Geary, {John C.} and Gilliland, {Ronald L.} and Terese Hansen and Howard Isaacson and Laird, {John B.} and Lucas, {Philip W.} and Marcy, {Geoffrey W.} and Morse, {Jon A.} and Paul Robertson and Avi Shporer and Stefanik, {Robert P.} and Martin Still and Quinn, {Samuel N.}",
year = "2012",
doi = "10.1038/nature11121",
language = "English",
volume = "486",
pages = "375--377",
journal = "Nature",
issn = "0028-0836",
publisher = "nature publishing group",
number = "7403",

}

RIS

TY - JOUR

T1 - An abundance of small exoplanets around stars with a wide range of metallicities

AU - Buchhave, Lars A.

AU - Latham, David W.

AU - Johansen, Anders

AU - Bizzarro, Martin

AU - Torres, Guillermo

AU - Rowe, Jason F.

AU - Batalha, Natalie M.

AU - Borucki, William J.

AU - Brugamyer, Erik

AU - Caldwell, Caroline

AU - Bryson, Stephen T.

AU - Ciardi, David R.

AU - Cochran, William D.

AU - Endl, Michael

AU - Esquerdo, Gilbert A.

AU - Ford, Eric B.

AU - Geary, John C.

AU - Gilliland, Ronald L.

AU - Hansen, Terese

AU - Isaacson, Howard

AU - Laird, John B.

AU - Lucas, Philip W.

AU - Marcy, Geoffrey W.

AU - Morse, Jon A.

AU - Robertson, Paul

AU - Shporer, Avi

AU - Stefanik, Robert P.

AU - Still, Martin

AU - Quinn, Samuel N.

PY - 2012

Y1 - 2012

N2 - The abundance of heavy elements (metallicity) in the photospheres of stars similar to the Sun provides a fossil record of the chemical composition of the initial protoplanetary disk. Metal-rich stars are much more likely to harbour gas giant planets, supporting the model that planets form by accumulation of dust and ice particles. Recent ground-based surveys suggest that this correlation is weakened for Neptunian-sized planets. However, how the relationship between size and metallicity extends into the regime of terrestrial-sized exoplanets is unknown. Here we report spectroscopic metallicities of the host stars of 226 small exoplanet candidates discovered by NASAs Kepler mission, including objects that are comparable in size to the terrestrial planets in the Solar System. We find that planets with radii less than four Earth radii form around host stars with a wide range of metallicities (but on average a metallicity close to that of the Sun), whereas large planets preferentially form around stars with higher metallicities. This observation suggests that terrestrial planets may be widespread in the disk of the Galaxy, with no special requirement of enhanced metallicity for their formation.

AB - The abundance of heavy elements (metallicity) in the photospheres of stars similar to the Sun provides a fossil record of the chemical composition of the initial protoplanetary disk. Metal-rich stars are much more likely to harbour gas giant planets, supporting the model that planets form by accumulation of dust and ice particles. Recent ground-based surveys suggest that this correlation is weakened for Neptunian-sized planets. However, how the relationship between size and metallicity extends into the regime of terrestrial-sized exoplanets is unknown. Here we report spectroscopic metallicities of the host stars of 226 small exoplanet candidates discovered by NASAs Kepler mission, including objects that are comparable in size to the terrestrial planets in the Solar System. We find that planets with radii less than four Earth radii form around host stars with a wide range of metallicities (but on average a metallicity close to that of the Sun), whereas large planets preferentially form around stars with higher metallicities. This observation suggests that terrestrial planets may be widespread in the disk of the Galaxy, with no special requirement of enhanced metallicity for their formation.

UR - http://www.scopus.com/inward/record.url?scp=84862569033&partnerID=8YFLogxK

U2 - 10.1038/nature11121

DO - 10.1038/nature11121

M3 - Letter

AN - SCOPUS:84862569033

VL - 486

SP - 375

EP - 377

JO - Nature

JF - Nature

SN - 0028-0836

IS - 7403

ER -

ID: 44046242