THE SPITZER MICROLENSING PROGRAM AS A PROBE for GLOBULAR CLUSTER PLANETS

ANALYSIS of OGLE-2015-BLG-0448

Radosław Poleski, Wei Zhu, Grant W. Christie, Andrzej Udalski, Andrew Gould, Etienne Bachelet, Jesper Skottfelt, Sebastiano Calchi Novati, M. K. Szymański, I. Soszyński, G. Pietrzyński, Wyrzykowski, K. Ulaczyk, P. Pietrukowicz, Szymon Kozłowski, J. Skowron, P. Mróz, M. Pawlak, C. Beichman, G. Bryden & 67 others S. Carey, M. Fausnaugh, B. S. Gaudi, C. B. Henderson, R. W. Pogge, Y. Shvartzvald, B. Wibking, J. C. Yee, Thomas Beatty, J. D. Eastman, J. Drummond, M. Friedmann, M. Henderson, J. A. Johnson, S. Kaspi, D. Maoz, J. McCormick, N. McCrady, T. Natusch, H. Ngan, I. Porritt, H. M. Relles, D. H. Sliski, T. G. Tan, R. A. Wittenmyer, Jason Wright, R. A. Street, Y. Tsapras, D. M. Bramich, K. Horne, C. Snodgrass, I. A. Steele, J. Menzies, R. Figuera Jaimes, J. Wambsganss, R. Schmidt, A. Cassan, C. Ranc, S. Mao, V. Bozza, M. Dominik, M. P.G. Hundertmark, U. G. Jørgensen, M. I. Andersen, M. J. Burgdorf, S. Ciceri, G. D'Ago, D. F. Evans, S. H. Gu, T. C. Hinse, N. Kains, E. Kerins, H. Korhonen, M. Kuffmeier, L. Mancini, A. Popovas, M. Rabus, S. Rahvar, R. T. Rasmussen, G. Scarpetta, J. Southworth, J. Surdej, E. Unda-Sanzana, P. Verma, C. Von Essen, Y. B. Wang, O. Wertz

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The microlensing event OGLE-2015-BLG-0448 was observed by Spitzer and lay within the tidal radius of the globular cluster NGC 6558. The event had moderate magnification and was intensively observed, hence it had the potential to probe the distribution of planets in globular clusters. We measure the proper motion of NGC 6558 ((μcl (N, E) = +0.36 ± 0.10, +1.42 ± 0.10 mas yr-1) as well as the source and show that the lens is not a cluster member. Even though this particular event does not probe the distribution of planets in globular clusters, other potential cluster lens events can be verified using our methodology. Additionally, we find that microlens parallax measured using Optical Gravitational Lens Experiment (OGLE) photometry is consistent with the value found based on the light curve displacement between the Earth and Spitzer.

Original languageEnglish (US)
Article number63
JournalAstrophysical Journal
Volume823
Issue number1
DOIs
StatePublished - May 20 2016

Fingerprint

gravitational lenses
globular clusters
planets
planet
probe
probes
experiment
lenses
methodology
parallax
proper motion
magnification
light curve
photometry
radii
distribution
programme
analysis

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Poleski, R., Zhu, W., Christie, G. W., Udalski, A., Gould, A., Bachelet, E., ... Wertz, O. (2016). THE SPITZER MICROLENSING PROGRAM AS A PROBE for GLOBULAR CLUSTER PLANETS: ANALYSIS of OGLE-2015-BLG-0448. Astrophysical Journal, 823(1), [63]. https://doi.org/10.3847/0004-637X/823/1/63
Poleski, Radosław ; Zhu, Wei ; Christie, Grant W. ; Udalski, Andrzej ; Gould, Andrew ; Bachelet, Etienne ; Skottfelt, Jesper ; Novati, Sebastiano Calchi ; Szymański, M. K. ; Soszyński, I. ; Pietrzyński, G. ; Wyrzykowski ; Ulaczyk, K. ; Pietrukowicz, P. ; Kozłowski, Szymon ; Skowron, J. ; Mróz, P. ; Pawlak, M. ; Beichman, C. ; Bryden, G. ; Carey, S. ; Fausnaugh, M. ; Gaudi, B. S. ; Henderson, C. B. ; Pogge, R. W. ; Shvartzvald, Y. ; Wibking, B. ; Yee, J. C. ; Beatty, Thomas ; Eastman, J. D. ; Drummond, J. ; Friedmann, M. ; Henderson, M. ; Johnson, J. A. ; Kaspi, S. ; Maoz, D. ; McCormick, J. ; McCrady, N. ; Natusch, T. ; Ngan, H. ; Porritt, I. ; Relles, H. M. ; Sliski, D. H. ; Tan, T. G. ; Wittenmyer, R. A. ; Wright, Jason ; Street, R. A. ; Tsapras, Y. ; Bramich, D. M. ; Horne, K. ; Snodgrass, C. ; Steele, I. A. ; Menzies, J. ; Jaimes, R. Figuera ; Wambsganss, J. ; Schmidt, R. ; Cassan, A. ; Ranc, C. ; Mao, S. ; Bozza, V. ; Dominik, M. ; Hundertmark, M. P.G. ; Jørgensen, U. G. ; Andersen, M. I. ; Burgdorf, M. J. ; Ciceri, S. ; D'Ago, G. ; Evans, D. F. ; Gu, S. H. ; Hinse, T. C. ; Kains, N. ; Kerins, E. ; Korhonen, H. ; Kuffmeier, M. ; Mancini, L. ; Popovas, A. ; Rabus, M. ; Rahvar, S. ; Rasmussen, R. T. ; Scarpetta, G. ; Southworth, J. ; Surdej, J. ; Unda-Sanzana, E. ; Verma, P. ; Essen, C. Von ; Wang, Y. B. ; Wertz, O. / THE SPITZER MICROLENSING PROGRAM AS A PROBE for GLOBULAR CLUSTER PLANETS : ANALYSIS of OGLE-2015-BLG-0448. In: Astrophysical Journal. 2016 ; Vol. 823, No. 1.
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abstract = "The microlensing event OGLE-2015-BLG-0448 was observed by Spitzer and lay within the tidal radius of the globular cluster NGC 6558. The event had moderate magnification and was intensively observed, hence it had the potential to probe the distribution of planets in globular clusters. We measure the proper motion of NGC 6558 ((μcl (N, E) = +0.36 ± 0.10, +1.42 ± 0.10 mas yr-1) as well as the source and show that the lens is not a cluster member. Even though this particular event does not probe the distribution of planets in globular clusters, other potential cluster lens events can be verified using our methodology. Additionally, we find that microlens parallax measured using Optical Gravitational Lens Experiment (OGLE) photometry is consistent with the value found based on the light curve displacement between the Earth and Spitzer.",
author = "Radosław Poleski and Wei Zhu and Christie, {Grant W.} and Andrzej Udalski and Andrew Gould and Etienne Bachelet and Jesper Skottfelt and Novati, {Sebastiano Calchi} and Szymański, {M. K.} and I. Soszyński and G. Pietrzyński and Wyrzykowski and K. Ulaczyk and P. Pietrukowicz and Szymon Kozłowski and J. Skowron and P. Mr{\'o}z and M. Pawlak and C. Beichman and G. Bryden and S. Carey and M. Fausnaugh and Gaudi, {B. S.} and Henderson, {C. B.} and Pogge, {R. W.} and Y. Shvartzvald and B. Wibking and Yee, {J. C.} and Thomas Beatty and Eastman, {J. D.} and J. Drummond and M. Friedmann and M. Henderson and Johnson, {J. A.} and S. Kaspi and D. Maoz and J. McCormick and N. McCrady and T. Natusch and H. Ngan and I. Porritt and Relles, {H. M.} and Sliski, {D. H.} and Tan, {T. G.} and Wittenmyer, {R. A.} and Jason Wright and Street, {R. A.} and Y. Tsapras and Bramich, {D. M.} and K. Horne and C. Snodgrass and Steele, {I. A.} and J. Menzies and Jaimes, {R. Figuera} and J. Wambsganss and R. Schmidt and A. Cassan and C. Ranc and S. Mao and V. Bozza and M. Dominik and Hundertmark, {M. P.G.} and J{\o}rgensen, {U. G.} and Andersen, {M. I.} and Burgdorf, {M. J.} and S. Ciceri and G. D'Ago and Evans, {D. F.} and Gu, {S. H.} and Hinse, {T. C.} and N. Kains and E. Kerins and H. Korhonen and M. Kuffmeier and L. Mancini and A. Popovas and M. Rabus and S. Rahvar and Rasmussen, {R. T.} and G. Scarpetta and J. Southworth and J. Surdej and E. Unda-Sanzana and P. Verma and Essen, {C. Von} and Wang, {Y. B.} and O. Wertz",
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language = "English (US)",
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Poleski, R, Zhu, W, Christie, GW, Udalski, A, Gould, A, Bachelet, E, Skottfelt, J, Novati, SC, Szymański, MK, Soszyński, I, Pietrzyński, G, Wyrzykowski, Ulaczyk, K, Pietrukowicz, P, Kozłowski, S, Skowron, J, Mróz, P, Pawlak, M, Beichman, C, Bryden, G, Carey, S, Fausnaugh, M, Gaudi, BS, Henderson, CB, Pogge, RW, Shvartzvald, Y, Wibking, B, Yee, JC, Beatty, T, Eastman, JD, Drummond, J, Friedmann, M, Henderson, M, Johnson, JA, Kaspi, S, Maoz, D, McCormick, J, McCrady, N, Natusch, T, Ngan, H, Porritt, I, Relles, HM, Sliski, DH, Tan, TG, Wittenmyer, RA, Wright, J, Street, RA, Tsapras, Y, Bramich, DM, Horne, K, Snodgrass, C, Steele, IA, Menzies, J, Jaimes, RF, Wambsganss, J, Schmidt, R, Cassan, A, Ranc, C, Mao, S, Bozza, V, Dominik, M, Hundertmark, MPG, Jørgensen, UG, Andersen, MI, Burgdorf, MJ, Ciceri, S, D'Ago, G, Evans, DF, Gu, SH, Hinse, TC, Kains, N, Kerins, E, Korhonen, H, Kuffmeier, M, Mancini, L, Popovas, A, Rabus, M, Rahvar, S, Rasmussen, RT, Scarpetta, G, Southworth, J, Surdej, J, Unda-Sanzana, E, Verma, P, Essen, CV, Wang, YB & Wertz, O 2016, 'THE SPITZER MICROLENSING PROGRAM AS A PROBE for GLOBULAR CLUSTER PLANETS: ANALYSIS of OGLE-2015-BLG-0448', Astrophysical Journal, vol. 823, no. 1, 63. https://doi.org/10.3847/0004-637X/823/1/63

THE SPITZER MICROLENSING PROGRAM AS A PROBE for GLOBULAR CLUSTER PLANETS : ANALYSIS of OGLE-2015-BLG-0448. / Poleski, Radosław; Zhu, Wei; Christie, Grant W.; Udalski, Andrzej; Gould, Andrew; Bachelet, Etienne; Skottfelt, Jesper; Novati, Sebastiano Calchi; Szymański, M. K.; Soszyński, I.; Pietrzyński, G.; Wyrzykowski; Ulaczyk, K.; Pietrukowicz, P.; Kozłowski, Szymon; Skowron, J.; Mróz, P.; Pawlak, M.; Beichman, C.; Bryden, G.; Carey, S.; Fausnaugh, M.; Gaudi, B. S.; Henderson, C. B.; Pogge, R. W.; Shvartzvald, Y.; Wibking, B.; Yee, J. C.; Beatty, Thomas; Eastman, J. D.; Drummond, J.; Friedmann, M.; Henderson, M.; Johnson, J. A.; Kaspi, S.; Maoz, D.; McCormick, J.; McCrady, N.; Natusch, T.; Ngan, H.; Porritt, I.; Relles, H. M.; Sliski, D. H.; Tan, T. G.; Wittenmyer, R. A.; Wright, Jason; Street, R. A.; Tsapras, Y.; Bramich, D. M.; Horne, K.; Snodgrass, C.; Steele, I. A.; Menzies, J.; Jaimes, R. Figuera; Wambsganss, J.; Schmidt, R.; Cassan, A.; Ranc, C.; Mao, S.; Bozza, V.; Dominik, M.; Hundertmark, M. P.G.; Jørgensen, U. G.; Andersen, M. I.; Burgdorf, M. J.; Ciceri, S.; D'Ago, G.; Evans, D. F.; Gu, S. H.; Hinse, T. C.; Kains, N.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Mancini, L.; Popovas, A.; Rabus, M.; Rahvar, S.; Rasmussen, R. T.; Scarpetta, G.; Southworth, J.; Surdej, J.; Unda-Sanzana, E.; Verma, P.; Essen, C. Von; Wang, Y. B.; Wertz, O.

In: Astrophysical Journal, Vol. 823, No. 1, 63, 20.05.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - THE SPITZER MICROLENSING PROGRAM AS A PROBE for GLOBULAR CLUSTER PLANETS

T2 - ANALYSIS of OGLE-2015-BLG-0448

AU - Poleski, Radosław

AU - Zhu, Wei

AU - Christie, Grant W.

AU - Udalski, Andrzej

AU - Gould, Andrew

AU - Bachelet, Etienne

AU - Skottfelt, Jesper

AU - Novati, Sebastiano Calchi

AU - Szymański, M. K.

AU - Soszyński, I.

AU - Pietrzyński, G.

AU - Wyrzykowski,

AU - Ulaczyk, K.

AU - Pietrukowicz, P.

AU - Kozłowski, Szymon

AU - Skowron, J.

AU - Mróz, P.

AU - Pawlak, M.

AU - Beichman, C.

AU - Bryden, G.

AU - Carey, S.

AU - Fausnaugh, M.

AU - Gaudi, B. S.

AU - Henderson, C. B.

AU - Pogge, R. W.

AU - Shvartzvald, Y.

AU - Wibking, B.

AU - Yee, J. C.

AU - Beatty, Thomas

AU - Eastman, J. D.

AU - Drummond, J.

AU - Friedmann, M.

AU - Henderson, M.

AU - Johnson, J. A.

AU - Kaspi, S.

AU - Maoz, D.

AU - McCormick, J.

AU - McCrady, N.

AU - Natusch, T.

AU - Ngan, H.

AU - Porritt, I.

AU - Relles, H. M.

AU - Sliski, D. H.

AU - Tan, T. G.

AU - Wittenmyer, R. A.

AU - Wright, Jason

AU - Street, R. A.

AU - Tsapras, Y.

AU - Bramich, D. M.

AU - Horne, K.

AU - Snodgrass, C.

AU - Steele, I. A.

AU - Menzies, J.

AU - Jaimes, R. Figuera

AU - Wambsganss, J.

AU - Schmidt, R.

AU - Cassan, A.

AU - Ranc, C.

AU - Mao, S.

AU - Bozza, V.

AU - Dominik, M.

AU - Hundertmark, M. P.G.

AU - Jørgensen, U. G.

AU - Andersen, M. I.

AU - Burgdorf, M. J.

AU - Ciceri, S.

AU - D'Ago, G.

AU - Evans, D. F.

AU - Gu, S. H.

AU - Hinse, T. C.

AU - Kains, N.

AU - Kerins, E.

AU - Korhonen, H.

AU - Kuffmeier, M.

AU - Mancini, L.

AU - Popovas, A.

AU - Rabus, M.

AU - Rahvar, S.

AU - Rasmussen, R. T.

AU - Scarpetta, G.

AU - Southworth, J.

AU - Surdej, J.

AU - Unda-Sanzana, E.

AU - Verma, P.

AU - Essen, C. Von

AU - Wang, Y. B.

AU - Wertz, O.

PY - 2016/5/20

Y1 - 2016/5/20

N2 - The microlensing event OGLE-2015-BLG-0448 was observed by Spitzer and lay within the tidal radius of the globular cluster NGC 6558. The event had moderate magnification and was intensively observed, hence it had the potential to probe the distribution of planets in globular clusters. We measure the proper motion of NGC 6558 ((μcl (N, E) = +0.36 ± 0.10, +1.42 ± 0.10 mas yr-1) as well as the source and show that the lens is not a cluster member. Even though this particular event does not probe the distribution of planets in globular clusters, other potential cluster lens events can be verified using our methodology. Additionally, we find that microlens parallax measured using Optical Gravitational Lens Experiment (OGLE) photometry is consistent with the value found based on the light curve displacement between the Earth and Spitzer.

AB - The microlensing event OGLE-2015-BLG-0448 was observed by Spitzer and lay within the tidal radius of the globular cluster NGC 6558. The event had moderate magnification and was intensively observed, hence it had the potential to probe the distribution of planets in globular clusters. We measure the proper motion of NGC 6558 ((μcl (N, E) = +0.36 ± 0.10, +1.42 ± 0.10 mas yr-1) as well as the source and show that the lens is not a cluster member. Even though this particular event does not probe the distribution of planets in globular clusters, other potential cluster lens events can be verified using our methodology. Additionally, we find that microlens parallax measured using Optical Gravitational Lens Experiment (OGLE) photometry is consistent with the value found based on the light curve displacement between the Earth and Spitzer.

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U2 - 10.3847/0004-637X/823/1/63

DO - 10.3847/0004-637X/823/1/63

M3 - Article

VL - 823

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 63

ER -