Reference : Detection of a transit of the super-Earth 55 Cnc e with Warm Spitzer
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/95420
Detection of a transit of the super-Earth 55 Cnc e with Warm Spitzer
English
Demory, B.-O. [> > > >]
Gillon, Michaël mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Deming, D. [> > > >]
Valencia, D. [> > > >]
Seager, S. [> > > >]
Benneke, B. [> > > >]
Lovis, C. [> > > >]
Cubillos, P. [> > > >]
Harrington, J. [> > > >]
Stevenson, K. B. [> > > >]
Mayor, M. [> > > >]
Pepe, F. [> > > >]
Queloz, D. [> > > >]
Segransan, D. [> > > >]
Udry, S. [> >]
2-Sep-2011
Astronomy and Astrophysics
EDP Sciences
533
114
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] Astrophysics - Earth and Planetary Astrophysics
[en] We report on the detection of a transit of the super-Earth 55 Cnc e with warm Spitzer in IRAC's 4.5 μm band. Our MCMC analysis includes an extensive modeling of the systematic effects affecting warm Spitzer photometry, and yields a transit depth of 410 ± 63 ppm, which translates to a planetary radius of 2.08+0.16-0.17 R_oplus as measured in IRAC 4.5 μm channel. A planetary mass of 7.81-0.53+0.58 M_oplus is derived from an extensive set of radial-velocity data, yielding a mean planetary density of 4.78-1.20+1.31 g cm-3. Thanks to the brightness of its host star (V = 6, K = 4), 55 Cnc e is a unique target for the thorough characterization of a super-Earth orbiting around a solar-type star.
http://hdl.handle.net/2268/95420
http://adsabs.harvard.edu/abs/2011arXiv1105.0415D

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