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Pregled bibliografske jedinice broj: 735728

Časopis

Autori: Skowron, D.; ...; Dominis Prester, Dijana; ...; Wertz, O.
Naslov: OGLE-2011-BLG-0265Lb : a Jovian Microlensing Planet Orbiting an M Dwarf
Izvornik: The Astrophysical journal (0004-637X) 804 (2015), 1; 33-1-33-12
Vrsta rada: članak
Ključne riječi: Astrophysics - Earth and Planetary Astrophysics
Sažetak:
We reanalyze microlensing events in the published list of anomalous events that were observed from the OGLE lensing survey conducted during 2004-2008 period. In order to check the existence of possible degenerate solutions and extract extra information, we conduct analyses based on combined data from other survey and follow-up observation and consider higher-order effects. Among the analyzed events, we present analyses of 8 events for which either new solutions are identified or additional information is obtained. We find that the previous binary-source interpretations of 5 events are better interpreted by binary-lens models. These events include OGLE-2006-BLG-238, OGLE-2007-BLG-159, OGLE-2007-BLG-491, OGLE-2008-BLG-143, and OGLE-2008-BLG-210. With additional data covering caustic crossings, we detect finite-source effects for 6 events including OGLE-2006-BLG-215, OGLE-2006-BLG-238, OGLE-2006-BLG-450, OGLE-2008-BLG-143, OGLE-2008-BLG-210, and OGLE-2008-BLG-513. Among them, we are able to measure the Einstein radii of 3 events for which multi-band data are available. These events are OGLE-2006-BLG-238, OGLE-2008-BLG-210, and OGLE-2008-BLG-513. For OGLE-2008-BLG-143, we detect higher-order effect induced by the changes of the observer's position caused by the orbital motion of the Earth around the Sun. In addition, we present degenerate solutions resulting from the known close/wide or ecliptic degeneracy. Finally, we note that the masses of the binary companions of the lenses of OGLE-2006-BLG-450 and OGLE-2008-BLG-210 are in the brown-dwarf regime.
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Fizika
URL Internet adrese: http://arxiv.org/abs/1502.06663
http://adsabs.harvard.edu/abs/2015ApJ...804...33S
URL cjelovitog teksta:
Google Scholar: OGLE-2011-BLG-0265Lb : a Jovian Microlensing Planet Orbiting an M Dwarf
Upisao u CROSBI: Dijana Dominis Prester (dijana@phy.uniri.hr), 28. Stu. 2014. u 12:07 sati
Napomene:
MiNDSTEp Consortium.



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