Limits on the abundance of galactic planets from 5 years of planet observations

M. D. Albrow; J. An; J. P. Beaulieu; J. A.R. Caldwell; D. L. DePoy; M. Dominik; B. S. Gaudi; A. Gould; J. Greenhill; K. Hill; S. Kane; R. Martin; J. Menzies; R. M. Naber; J. W. Pel; R. W. Pogge; K. R. Pollard; P. D. Sackett; K. C. Sahu; P. Vermaak; P. M. Vreeswijk; R. Watson; A. Wllliams

doi:10.1086/323141

Limits on the abundance of galactic planets from 5 years of planet observations

M. D. Albrow^*, J. An, J. P. Beaulieu, J. A.R. Caldwell, D. L. DePoy, M. Dominik, B. S. Gaudi, A. Gould, J. Greenhill, K. Hill, S. Kane, R. Martin, J. Menzies, R. M. Naber, J. W. Pel, R. W. Pogge, K. R. Pollard, P. D. Sackett, K. C. Sahu, P. VermaakP. M. Vreeswijk, R. Watson, A. Wllliams

^*Corresponding author for this work

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

42 Citations (Scopus)

Abstract

We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short-duration (∼1 day) deviation on the smooth, symmetric light curve produced by a single lens. We find no such anomalies and infer that less than one-third of the ∼0.3 M_⊙ stars that typically comprise the lens population have Jupiter mass companions with semimajor axes in the range of 1.5 AU < a < 4 AU. Since orbital periods of planets at these radii are 3-15 yr, the outer portion of this region is currently difficult to probe with any other technique.

Original language	English
Pages (from-to)	L113-L116
Journal	Astrophysical Journal
Volume	556
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/323141
Publication status	Published - 1 Aug 2001
Externally published	Yes

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Albrow, M. D., An, J., Beaulieu, J. P., Caldwell, J. A. R., DePoy, D. L., Dominik, M., Gaudi, B. S., Gould, A., Greenhill, J., Hill, K., Kane, S., Martin, R., Menzies, J., Naber, R. M., Pel, J. W., Pogge, R. W., Pollard, K. R., Sackett, P. D., Sahu, K. C., ... Wllliams, A. (2001). Limits on the abundance of galactic planets from 5 years of planet observations. Astrophysical Journal, 556(2 PART 2), L113-L116. https://doi.org/10.1086/323141

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title = "Limits on the abundance of galactic planets from 5 years of planet observations",

abstract = "We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short-duration (∼1 day) deviation on the smooth, symmetric light curve produced by a single lens. We find no such anomalies and infer that less than one-third of the ∼0.3 M⊙ stars that typically comprise the lens population have Jupiter mass companions with semimajor axes in the range of 1.5 AU < a < 4 AU. Since orbital periods of planets at these radii are 3-15 yr, the outer portion of this region is currently difficult to probe with any other technique.",

keywords = "Gravitational lensing, Planetary systems, Stars: late-type, Stars: low-mass, brown dwarfs, Techniques: photometric",

author = "Albrow, {M. D.} and J. An and Beaulieu, {J. P.} and Caldwell, {J. A.R.} and DePoy, {D. L.} and M. Dominik and Gaudi, {B. S.} and A. Gould and J. Greenhill and K. Hill and S. Kane and R. Martin and J. Menzies and Naber, {R. M.} and Pel, {J. W.} and Pogge, {R. W.} and Pollard, {K. R.} and Sackett, {P. D.} and Sahu, {K. C.} and P. Vermaak and Vreeswijk, {P. M.} and R. Watson and A. Wllliams",

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month = aug,

day = "1",

doi = "10.1086/323141",

language = "English",

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Albrow, MD, An, J, Beaulieu, JP, Caldwell, JAR, DePoy, DL, Dominik, M, Gaudi, BS, Gould, A, Greenhill, J, Hill, K, Kane, S, Martin, R, Menzies, J, Naber, RM, Pel, JW, Pogge, RW, Pollard, KR, Sackett, PD, Sahu, KC, Vermaak, P, Vreeswijk, PM, Watson, R & Wllliams, A 2001, 'Limits on the abundance of galactic planets from 5 years of planet observations', Astrophysical Journal, vol. 556, no. 2 PART 2, pp. L113-L116. https://doi.org/10.1086/323141

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T1 - Limits on the abundance of galactic planets from 5 years of planet observations

AU - Albrow, M. D.

AU - An, J.

AU - Beaulieu, J. P.

AU - Caldwell, J. A.R.

AU - DePoy, D. L.

AU - Dominik, M.

AU - Gaudi, B. S.

AU - Gould, A.

AU - Greenhill, J.

AU - Hill, K.

AU - Kane, S.

AU - Martin, R.

AU - Menzies, J.

AU - Naber, R. M.

AU - Pel, J. W.

AU - Pogge, R. W.

AU - Pollard, K. R.

AU - Sackett, P. D.

AU - Sahu, K. C.

AU - Vermaak, P.

AU - Vreeswijk, P. M.

AU - Watson, R.

AU - Wllliams, A.

PY - 2001/8/1

Y1 - 2001/8/1

N2 - We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short-duration (∼1 day) deviation on the smooth, symmetric light curve produced by a single lens. We find no such anomalies and infer that less than one-third of the ∼0.3 M⊙ stars that typically comprise the lens population have Jupiter mass companions with semimajor axes in the range of 1.5 AU < a < 4 AU. Since orbital periods of planets at these radii are 3-15 yr, the outer portion of this region is currently difficult to probe with any other technique.

AB - We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short-duration (∼1 day) deviation on the smooth, symmetric light curve produced by a single lens. We find no such anomalies and infer that less than one-third of the ∼0.3 M⊙ stars that typically comprise the lens population have Jupiter mass companions with semimajor axes in the range of 1.5 AU < a < 4 AU. Since orbital periods of planets at these radii are 3-15 yr, the outer portion of this region is currently difficult to probe with any other technique.

KW - Gravitational lensing

KW - Planetary systems

KW - Stars: late-type

KW - Stars: low-mass, brown dwarfs

KW - Techniques: photometric

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U2 - 10.1086/323141

DO - 10.1086/323141

M3 - Article

SN - 0004-637X

VL - 556

SP - L113-L116

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 2

ER -

Limits on the abundance of galactic planets from 5 years of planet observations

Abstract

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