2011ApJ...741...22M

Query : 2011ApJ...741...22M

2011ApJ...741...22M - Astrophys. J., 741, 22 (2011/November-1)

Discovery and mass measurements of a cold, 10 earth mass planet and its host star.

MURAKI Y., HAN C., BENNETT D.P., SUZUKI D., MONARD L.A.G., STREET R., JORGENSEN U.G., KUNDURTHY P., SKOWRON J., BECKER A.C., ALBROW M.D., FOUQUE P., HEYROVSKY D., BARRY R.K., BEAULIEU J.-P., WELLNITZ D.D., BOND I.A., SUMI T., DONG S., GAUDI B.S., BRAMICH D.M., DOMINIK M., ABE F., BOTZLER C.S., FREEMAN M., FUKUI A., FURUSAWA K., HAYASHI F., HEARNSHAW J.B., HOSAKA S., ITOW Y., KAMIYA K., KORPELA A.V., KILMARTIN P.M., LIN W., LING C.H., MAKITA S., MASUDA K., MATSUBARA Y., MIYAKE N., NISHIMOTO K., OHNISHI K., PERROTT Y.C., RATTENBURY N.J., SAITO T., SKULJAN L., SULLIVAN D.J., SWEATMAN W.L., TRISTRAM P.J., WADA K., YOCK P.C.M. (The MOA Collaboration), CHRISTIE G.W., DEPOY D.L., GORBIKOV E., GOULD A., KASPI S., LEE C.-U., MALLIA F., MAOZ D., McCORMICK J., MOORHOUSE D., NATUSCH T., PARK B.-G., POGGE R.W., POLISHOOK D., SHPORER A., THORNLEY G., YEE J.C. (The {mu}FUN Collaboration), ALLAN A., BROWNE P., HORNE K., KAINS N., SNODGRASS C., STEELE I., TSAPRAS Y. (The RoboNet Collaboration), BATISTA V., BENNETT C.S., BRILLANT S., CALDWELL J.A.R., CASSAN A., COLE A., CORRALES R., COUTURES Ch., DIETERS S., DOMINIS PRESTER D., DONATOWICZ J., GREENHILL J., KUBAS D., MARQUETTE J.-B., MARTIN R., MENZIES J., SAHU K.C., WALDMAN I., WILLIAMS A., ZUB M. (The PLANET Collaboration), BOURHROUS H., MATSUOKA Y., NAGAYAMA T., OI N., RANDRIAMANAKOTO Z. (The IRSF Observers), BOZZA V., BURGDORF M.J., CALCHI NOVATI S., DREIZLER S., FINET F., GLITRUP M., HARPSOE K., HINSE T.C., HUNDERTMARK M., LIEBIG C., MAIER G., MANCINI L., MATHIASEN M., RAHVAR S., RICCI D., SCARPETTA G., SKOTTFELT J., SURDEJ J., SOUTHWORTH J., WAMBSGANSS J., ZIMMER F. (The MiNDSTEp Consortium), UDALSKI A., POLESKI R., WYRZYKOWSKI L., ULACZYK K., SZYMANSKI M.K., KUBIAK M., PIETRZYNSKI G., SOSZYNSKI I. (The OGLE Collaboration)

Abstract (from CDS):

We present the discovery and mass measurement of the cold, low-mass planet MOA-2009-BLG-266Lb, performed with the gravitational microlensing method. This planet has a mass of mp= 10.4±1.7 M⊕ and orbits a star of mass M{sstarf}= 0.56±0.09 M{x2609} at a semimajor axis of AU and an orbital period of yrs. The planet and host star mass measurements are enabled by the measurement of the microlensing parallax effect, which is seen primarily in the light curve distortion due to the orbital motion of the Earth. But the analysis also demonstrates the capability to measure the microlensing parallax with the Deep Impact (or EPOXI) spacecraft in a heliocentric orbit. The planet mass and orbital distance are similar to predictions for the critical core mass needed to accrete a substantial gaseous envelope, and thus may indicate that this planet is a "failed" gas giant. This and future microlensing detections will test planet formation theory predictions regarding the prevalence and masses of such planets.

Abstract Copyright: ∼

Journal keyword(s): gravitational lensing: micro - planetary systems

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 BD+50 1471 PM* 07 48 06.4723053776 +50 13 32.920598923   12.002 11.138 10.669 10.243 G9V 173 1
2 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 645 1
3 MOA 2009-BLG-266 * 17 48 05.950 -35 00 19.48           ~ 23 1
4 MOA 2009-BLG-266b Pl 17 48 05.950 -35 00 19.48           ~ 15 1
5 NAME EWS 2006-BLG-109b Pl 17 52 34.55 -30 05 15.7           ~ 46 1
6 NAME EWS 2005-BLG-390b Pl 17 54 19.2 -30 22 38           ~ 78 1
7 MOA 2007-BLG-308b Pl 17 56 25.96 -32 14 14.7           ~ 15 1
8 MOA 2007-BLG-192 * 18 08 03.798 -27 09 00.27           ~ 46 1
9 MOA 2007-BLG-192b Pl 18 08 03.798 -27 09 00.27           ~ 32 1
10 NAME Galactic Bulge reg ~ ~           ~ 4299 0
11 NAME Galactic Bar reg ~ ~           ~ 1220 0

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