Discovery of a Jupiter/Saturn analog with gravitational microlensing

B. S. Gaudi; D. P. Bennett; A. Udalski; A. Gould; G. W. Christie; D. Maoz; S. Dong; J. McCormick; M. K. Szymanski; P. J. Tristram; S. Nikolaev; B. Paczynski; M. Kubiak; G. Pietrzynski; I. Soszynski; O. Szewczyk; K. Ulaczyk; L. Wyrzykowski; D. L. Depoy; C. Han; S. Kaspi; C. -U. Lee; F. Mallia; T. Natusch; R. W. Pogge; B. -G. Park; F. Abe; I. A. Bond; C. S. Botzler; A. Fukui; J. B. Hearnshaw; Y. Itow; K. Kamiya; A. V. Korpela; P. M. Kilmartin; W. Lin; K. Masuda; Y. Matsubara; M. Motomura; Y. Muraki; S. Nakamura; T. Okumura; K. Ohnishi; N. J. Rattenbury; T. Sako; To. Saito; S. Sato; L. Skuljan; Martin Dominik; Keith Douglas Horne; RoboNET Collaborations, uFUN Collaboration, MOA Collaboration, OGLE Collaboration, PLANET Collaboration

doi:10.1126/science.1151947

Discovery of a Jupiter/Saturn analog with gravitational microlensing

B. S. Gaudi, D. P. Bennett, A. Udalski, A. Gould, G. W. Christie, D. Maoz, S. Dong, J. McCormick, M. K. Szymanski, P. J. Tristram, S. Nikolaev, B. Paczynski, M. Kubiak, G. Pietrzynski, I. Soszynski, O. Szewczyk, K. Ulaczyk, L. Wyrzykowski, D. L. Depoy, C. HanS. Kaspi, C. -U. Lee, F. Mallia, T. Natusch, R. W. Pogge, B. -G. Park, F. Abe, I. A. Bond, C. S. Botzler, A. Fukui, J. B. Hearnshaw, Y. Itow, K. Kamiya, A. V. Korpela, P. M. Kilmartin, W. Lin, K. Masuda, Y. Matsubara, M. Motomura, Y. Muraki, S. Nakamura, T. Okumura, K. Ohnishi, N. J. Rattenbury, T. Sako, To. Saito, S. Sato, L. Skuljan, Martin Dominik, Keith Douglas Horne, RoboNET Collaborations, uFUN Collaboration, MOA Collaboration, OGLE Collaboration, PLANET Collaboration

School of Physics and Astronomy

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

286 Citations (Scopus)

Abstract

Searches for extrasolar planets have uncovered an astonishing diversity of planetary systems, yet the frequency of solar system analogs remains unknown. The gravitational microlensing planet search method is potentially sensitive to multiple- planet systems containing analogs of all the solar system planets except Mercury. We report the detection of a multiple- planet system with microlensing. We identify two planets with masses of similar to 0.71 and similar to 0.27 times the mass of Jupiter and orbital separations of similar to 2.3 and similar to 4.6 astronomical units orbiting a primary star of mass similar to 0.50 solar mass at a distance of similar to 1.5 kiloparsecs. This system resembles a scaled version of our solar system in that the mass ratio, separation ratio, and equilibrium temperatures of the planets are similar to those of Jupiter and Saturn. These planets could not have been detected with other techniques; their discovery from only six confirmed microlensing planet detections suggests that solar system analogs may be common.

Original language	English
Pages (from-to)	927-930
Number of pages	4
Journal	Science
Volume	319
Issue number	5865
DOIs	https://doi.org/10.1126/science.1151947
Publication status	Published - 15 Feb 2008

Keywords

HIGH-MAGNIFICATION
EXTRASOLAR PLANETS
LENSING EXPERIMENT
LIGHT CURVES
SYSTEMS
SEARCH
STAR
DISK
EXOPLANETS
COMPANION

Access to Document

10.1126/science.1151947

Cite this

Gaudi, B. S., Bennett, D. P., Udalski, A., Gould, A., Christie, G. W., Maoz, D., Dong, S., McCormick, J., Szymanski, M. K., Tristram, P. J., Nikolaev, S., Paczynski, B., Kubiak, M., Pietrzynski, G., Soszynski, I., Szewczyk, O., Ulaczyk, K., Wyrzykowski, L., Depoy, D. L., ... RoboNET Collaborations, uFUN Collaboration, MOA Collaboration, OGLE Collaboration, PLANET Collaboration (2008). Discovery of a Jupiter/Saturn analog with gravitational microlensing. Science, 319(5865), 927-930. https://doi.org/10.1126/science.1151947

@article{2c4953cb660f4491a852f5e01125076f,

title = "Discovery of a Jupiter/Saturn analog with gravitational microlensing",

abstract = "Searches for extrasolar planets have uncovered an astonishing diversity of planetary systems, yet the frequency of solar system analogs remains unknown. The gravitational microlensing planet search method is potentially sensitive to multiple- planet systems containing analogs of all the solar system planets except Mercury. We report the detection of a multiple- planet system with microlensing. We identify two planets with masses of similar to 0.71 and similar to 0.27 times the mass of Jupiter and orbital separations of similar to 2.3 and similar to 4.6 astronomical units orbiting a primary star of mass similar to 0.50 solar mass at a distance of similar to 1.5 kiloparsecs. This system resembles a scaled version of our solar system in that the mass ratio, separation ratio, and equilibrium temperatures of the planets are similar to those of Jupiter and Saturn. These planets could not have been detected with other techniques; their discovery from only six confirmed microlensing planet detections suggests that solar system analogs may be common.",

keywords = "HIGH-MAGNIFICATION, EXTRASOLAR PLANETS, LENSING EXPERIMENT, LIGHT CURVES, SYSTEMS, SEARCH, STAR, DISK, EXOPLANETS, COMPANION",

author = "Gaudi, {B. S.} and Bennett, {D. P.} and A. Udalski and A. Gould and Christie, {G. W.} and D. Maoz and S. Dong and J. McCormick and Szymanski, {M. K.} and Tristram, {P. J.} and S. Nikolaev and B. Paczynski and M. Kubiak and G. Pietrzynski and I. Soszynski and O. Szewczyk and K. Ulaczyk and L. Wyrzykowski and Depoy, {D. L.} and C. Han and S. Kaspi and Lee, {C. -U.} and F. Mallia and T. Natusch and Pogge, {R. W.} and Park, {B. -G.} and F. Abe and Bond, {I. A.} and Botzler, {C. S.} and A. Fukui and Hearnshaw, {J. B.} and Y. Itow and K. Kamiya and Korpela, {A. V.} and Kilmartin, {P. M.} and W. Lin and K. Masuda and Y. Matsubara and M. Motomura and Y. Muraki and S. Nakamura and T. Okumura and K. Ohnishi and Rattenbury, {N. J.} and T. Sako and To. Saito and S. Sato and L. Skuljan and Martin Dominik and Horne, {Keith Douglas} and {RoboNET Collaborations, uFUN Collaboration, MOA Collaboration, OGLE Collaboration, PLANET Collaboration}",

year = "2008",

month = feb,

day = "15",

doi = "10.1126/science.1151947",

language = "English",

volume = "319",

pages = "927--930",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "5865",

}

Gaudi, BS, Bennett, DP, Udalski, A, Gould, A, Christie, GW, Maoz, D, Dong, S, McCormick, J, Szymanski, MK, Tristram, PJ, Nikolaev, S, Paczynski, B, Kubiak, M, Pietrzynski, G, Soszynski, I, Szewczyk, O, Ulaczyk, K, Wyrzykowski, L, Depoy, DL, Han, C, Kaspi, S, Lee, C-U, Mallia, F, Natusch, T, Pogge, RW, Park, B-G, Abe, F, Bond, IA, Botzler, CS, Fukui, A, Hearnshaw, JB, Itow, Y, Kamiya, K, Korpela, AV, Kilmartin, PM, Lin, W, Masuda, K, Matsubara, Y, Motomura, M, Muraki, Y, Nakamura, S, Okumura, T, Ohnishi, K, Rattenbury, NJ, Sako, T, Saito, T, Sato, S, Skuljan, L, Dominik, M , Horne, KD & RoboNET Collaborations, uFUN Collaboration, MOA Collaboration, OGLE Collaboration, PLANET Collaboration 2008, 'Discovery of a Jupiter/Saturn analog with gravitational microlensing', Science, vol. 319, no. 5865, pp. 927-930. https://doi.org/10.1126/science.1151947

TY - JOUR

T1 - Discovery of a Jupiter/Saturn analog with gravitational microlensing

AU - Gaudi, B. S.

AU - Bennett, D. P.

AU - Udalski, A.

AU - Gould, A.

AU - Christie, G. W.

AU - Maoz, D.

AU - Dong, S.

AU - McCormick, J.

AU - Szymanski, M. K.

AU - Tristram, P. J.

AU - Nikolaev, S.

AU - Paczynski, B.

AU - Kubiak, M.

AU - Pietrzynski, G.

AU - Soszynski, I.

AU - Szewczyk, O.

AU - Ulaczyk, K.

AU - Wyrzykowski, L.

AU - Depoy, D. L.

AU - Han, C.

AU - Kaspi, S.

AU - Lee, C. -U.

AU - Mallia, F.

AU - Natusch, T.

AU - Pogge, R. W.

AU - Park, B. -G.

AU - Abe, F.

AU - Bond, I. A.

AU - Botzler, C. S.

AU - Fukui, A.

AU - Hearnshaw, J. B.

AU - Itow, Y.

AU - Kamiya, K.

AU - Korpela, A. V.

AU - Kilmartin, P. M.

AU - Lin, W.

AU - Masuda, K.

AU - Matsubara, Y.

AU - Motomura, M.

AU - Muraki, Y.

AU - Nakamura, S.

AU - Okumura, T.

AU - Ohnishi, K.

AU - Rattenbury, N. J.

AU - Sako, T.

AU - Saito, To.

AU - Sato, S.

AU - Skuljan, L.

AU - Dominik, Martin

AU - Horne, Keith Douglas

AU - RoboNET Collaborations, uFUN Collaboration, MOA Collaboration, OGLE Collaboration, PLANET Collaboration

PY - 2008/2/15

Y1 - 2008/2/15

N2 - Searches for extrasolar planets have uncovered an astonishing diversity of planetary systems, yet the frequency of solar system analogs remains unknown. The gravitational microlensing planet search method is potentially sensitive to multiple- planet systems containing analogs of all the solar system planets except Mercury. We report the detection of a multiple- planet system with microlensing. We identify two planets with masses of similar to 0.71 and similar to 0.27 times the mass of Jupiter and orbital separations of similar to 2.3 and similar to 4.6 astronomical units orbiting a primary star of mass similar to 0.50 solar mass at a distance of similar to 1.5 kiloparsecs. This system resembles a scaled version of our solar system in that the mass ratio, separation ratio, and equilibrium temperatures of the planets are similar to those of Jupiter and Saturn. These planets could not have been detected with other techniques; their discovery from only six confirmed microlensing planet detections suggests that solar system analogs may be common.

AB - Searches for extrasolar planets have uncovered an astonishing diversity of planetary systems, yet the frequency of solar system analogs remains unknown. The gravitational microlensing planet search method is potentially sensitive to multiple- planet systems containing analogs of all the solar system planets except Mercury. We report the detection of a multiple- planet system with microlensing. We identify two planets with masses of similar to 0.71 and similar to 0.27 times the mass of Jupiter and orbital separations of similar to 2.3 and similar to 4.6 astronomical units orbiting a primary star of mass similar to 0.50 solar mass at a distance of similar to 1.5 kiloparsecs. This system resembles a scaled version of our solar system in that the mass ratio, separation ratio, and equilibrium temperatures of the planets are similar to those of Jupiter and Saturn. These planets could not have been detected with other techniques; their discovery from only six confirmed microlensing planet detections suggests that solar system analogs may be common.

KW - HIGH-MAGNIFICATION

KW - EXTRASOLAR PLANETS

KW - LENSING EXPERIMENT

KW - LIGHT CURVES

KW - SYSTEMS

KW - SEARCH

KW - STAR

KW - DISK

KW - EXOPLANETS

KW - COMPANION

UR - http://www.scopus.com/inward/record.url?scp=39349105578&partnerID=8YFLogxK

U2 - 10.1126/science.1151947

DO - 10.1126/science.1151947

M3 - Article

SN - 0036-8075

VL - 319

SP - 927

EP - 930

JO - Science

JF - Science

IS - 5865

ER -

Discovery of a Jupiter/Saturn analog with gravitational microlensing

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Astrophysics at St Andrews: Astrophysics at St.Andrews

Cite this

Discovery of a Jupiter/Saturn analog with gravitational microlensing

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Astrophysics at St Andrews: Astrophysics at St.Andrews

Cite this