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Pregled bibliografske jedinice broj: 800845

Red noise versus planetary interpretations in the microlensing event OGLE-2013-BLG-446


Bachelet, E.; Bramich, D.M.; Han, C.; Greenhill, J.; Street, R.A.; Gould, A.; D'Ago, G.; AlSubai, K.; Dominik, M.; Figuera Jaimes, R. et al.
Red noise versus planetary interpretations in the microlensing event OGLE-2013-BLG-446 // The Astrophysical journal, 812 (2015), 2; 136-1 doi:10.1088/0004-637X/812/2/136 (međunarodna recenzija, članak, znanstveni)


Naslov
Red noise versus planetary interpretations in the microlensing event OGLE-2013-BLG-446

Autori
Bachelet, E. ; Bramich, D.M. ; Han, C. ; Greenhill, J. ; Street, R.A. ; Gould, A. ; D'Ago, G. ; AlSubai, K. ; Dominik, M. ; Figuera Jaimes, R. ; Horne, K. ; Hundertmark, M. ; Kains, N. ; Snodgrass, C. ; Steele, I.A. ; Tsapras, Y. ; Albrow, M.D. ; Batista, V. ; Beaulieu, J.-P. ; Bennett, D.P. ; Brillant, S. ; Caldwell, J.A.R. ; Cassan, A. ; Cole, A. ; Coutures, C. ; Dieters, S. ; Dominis Prester, Dijana ; Donatowicz, J. ; Fouqué, P. ; Hill, K. ; Marquette, J.-B. ; Menzies, J. ; Pere, C. ; Ranc, C. ; Wambsganss, J. ; Warren, D. ; The PLANET Collaboration ; de Almeida, L. Andrade ; Choi, J.-Y. ; DePoy, D. L. ; Dong, S. ; Hung, L.-W. ; Hwang, K.-H. ; Jablonski, F. ; Jung, Y. K. ; Kaspi, S. ; Klein, N. ; Lee, C.-U. ; Maoz, D. ; Muñoz, J. A. ; Nataf, D. ; Park, H. ; Pogge, R. W. ; Polishook, D. ; Shin, I.-G. ; Shporer, A. ; Yee, J.C. ; Abe, F. ; Bhattacharya, A. ; Bond, I.A. ; Botzler, C. S. ; Freeman, M. ; Fukui, A. ; Itow, Y. ; Koshimoto, N. ; Ling, C.H. ; Masuda, K. ; Matsubara, Y. ; Muraki, Y. ; Ohnishi, K. ; Philpott, L.C. ; Rattenbury, N. ; Saito, To. ; Sullivan, D J. ; Sumi, T. ; Suzuki, D. ; Tristram, P.J. ; Yonehara, A. ; Bozza, V. ; Calchi Novati, S. ; Ciceri, S. ; Galianni, P. ; Gu, S.-H. ; Harpsøe, K. ; Hinse, T.C. ; Jørgensen, U.G. ; Juncher, D. ; Korhonen, H. ; Mancini, L. ; Melchiorre, C. ; Popovas, A. ; Postiglione, A. ; Rabus, M. ; Rahvar, S. ; Schmidt, R.W. ; Scarpetta, G. ; Skottfelt, J. ; Southworth, John ; Stabile, An. ; Surdej, J. ; Wang, X.-B. ; Wertz, O. ; The MiNDSTEp Collaboration

Izvornik
The Astrophysical journal (0004-637X) 812 (2015), 2; 136-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Gravitational lensing: micro ; planetary systems ; techniques: photometric

Sažetak
For all exoplanet candidates, the reliability of a claimed detection needs to be assessed through a careful study of systematic errors in the data to minimize the false positives rate. We present a method to investigate such systematics in microlensing data sets using the microlensing event OGLE-2013-BLG-0446 as a case study. The event was observed from multiple sites around the world and its high magnification (Amax ˜ 3000) allowed us to investigate the effects of terrestrial and annual parallax. Real-time modeling of the event while it was still ongoing suggested the presence of an extremely low-mass companion (˜3M⊕) to the lensing star, leading to substantial follow-up coverage of the light curve. We test and compare different models for the light curve and conclude that the data do not favor the planetary interpretation when systematic errors are taken into account.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
RoboNet Collaboration ; The μFUN Collaboration ; The MOA Collaboration ; The MiNDSTEp collaboration.



POVEZANOST RADA


Ustanove
Sveučilište u Rijeci - Odjel za fiziku

Autor s matičnim brojem:
Dijana Dominis Prester, (241452)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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