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Spitzer Observations Of Ogle-2015-blg-1212 Reveal A New Path Toward Breaking Strong Microlens Degeneracies
- Source :
- Bozza, V, Shvartzvald, Y, Udalski, A, Novati, S C, Bond, I A, Han, C, Hundertmark, M, Poleski, R, Pawlak, M, Szymanski, M K, Skowron, J, Mróz, P, Kozlowski, S, Wyrzykowski, L, Pietrukowicz, P, Soszynski, I, Ulaczyk, K, Beichman, C, Bryden, G, Carey, S, Fausnaugh, M, Gaudi, B S, Gould, A, Henderson, C B, Pogge, R W, Wibking, B, Yee, J C, Zhu, W, Abe, F, Asakura, Y, Barry, R K, Bennett, D P, Bhattacharya, A, Donachie, M, Freeman, M, Fukui, A, Hirao, Y, Inayama, K, Itow, Y, Koshimoto, N, Li, M C A, Ling, C H, Masuda, K, Matsubara, Y, Muraki, Y, Nagakane, M, Nishioka, T, Ohnishi, K, Rasmussen, R T, von Essen, C, OGLE GRP, SPITZER Team, MOA Grp, KMTNet Grp & WISE GRP 2016, ' SPITZER OBSERVATIONS OF OGLE-2015-BLG-1212 REVEAL A NEW PATH TOWARD BREAKING STRONG MICROLENS DEGENERACIES ', Astrophysical Journal, vol. 820, no. 1, 79 . https://doi.org/10.3847/0004-637X/820/1/79
- Publication Year :
- 2016
- Publisher :
- IOP Science, 2016.
-
Abstract
- Spitzer microlensing parallax observations of OGLE-2015-BLG-1212 decisively breaks a degeneracy between planetary and binary solutions that is somewhat ambiguous when only ground-based data are considered. Only eight viable models survive out of an initial set of 32 local minima in the parameter space. These models clearly indicate that the lens is a stellar binary system possibly located within the bulge of our Galaxy, ruling out the planetary alternative. We argue that several types of discrete degeneracies can be broken via such space-based parallax observations.<br />Comment: 27 pages, 6 figures, accepted by ApJ
- Subjects :
- planets and satellites: detection
010504 meteorology & atmospheric sciences
GRAVITATIONAL LENSING EXPERIMENT
Binary number
Astrophysics
gravitational lensing: micro
Parameter space
GALACTIC BULGE
01 natural sciences
Galaxy: bulge
Bulge
QB Astronomy
Astrophysics::Solar and Stellar Astrophysics
10. No inequality
010303 astronomy & astrophysics
SATELLITE
QC
QB
Physics
Earth and Planetary Astrophysics (astro-ph.EP)
binaries: general
space vehicles
Space and Planetary Science
Astronomy and Astrophysics
OGLE-III
PARALLAXES
Astrophysics::Earth and Planetary Astrophysics
bulge [Galaxy]
NDAS
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
Gravitational microlensing
micro [Gravitational lensing]
EVENTS
Settore FIS/05 - Astronomia e Astrofisica
SYSTEMS
0103 physical sciences
PHOTOMETRY
Astrophysics::Galaxy Astrophysics
0105 earth and related environmental sciences
general [Binaries]
Space vehicles
BINARY
Galaxy
Maxima and minima
detection [Planets and satellites]
QC Physics
Parallax
Degeneracy (mathematics)
STARS
Astrophysics - Earth and Planetary Astrophysics
Subjects
Details
- Language :
- English
- ISSN :
- 0004637X
- Database :
- OpenAIRE
- Journal :
- Bozza, V, Shvartzvald, Y, Udalski, A, Novati, S C, Bond, I A, Han, C, Hundertmark, M, Poleski, R, Pawlak, M, Szymanski, M K, Skowron, J, Mróz, P, Kozlowski, S, Wyrzykowski, L, Pietrukowicz, P, Soszynski, I, Ulaczyk, K, Beichman, C, Bryden, G, Carey, S, Fausnaugh, M, Gaudi, B S, Gould, A, Henderson, C B, Pogge, R W, Wibking, B, Yee, J C, Zhu, W, Abe, F, Asakura, Y, Barry, R K, Bennett, D P, Bhattacharya, A, Donachie, M, Freeman, M, Fukui, A, Hirao, Y, Inayama, K, Itow, Y, Koshimoto, N, Li, M C A, Ling, C H, Masuda, K, Matsubara, Y, Muraki, Y, Nagakane, M, Nishioka, T, Ohnishi, K, Rasmussen, R T, von Essen, C, OGLE GRP, SPITZER Team, MOA Grp, KMTNet Grp & WISE GRP 2016, ' SPITZER OBSERVATIONS OF OGLE-2015-BLG-1212 REVEAL A NEW PATH TOWARD BREAKING STRONG MICROLENS DEGENERACIES ', Astrophysical Journal, vol. 820, no. 1, 79 . https://doi.org/10.3847/0004-637X/820/1/79
- Accession number :
- edsair.doi.dedup.....a1b6df70523287c445f4d464fbe6271e
- Full Text :
- https://doi.org/10.3847/0004-637X/820/1/79