2010ApJ...713L.150R


Query : 2010ApJ...713L.150R

2010ApJ...713L.150R - Astrophys. J., 713, L150-L154 (2010/April-3)

Kepler observations of transiting hot compact objects.

ROWE J.F., BORUCKI W.J., KOCH D., HOWELL S.B., BASRI G., BATALHA N., BROWN T.M., CALDWELL D., COCHRAN W.D., DUNHAM E., DUPREE A.K., FORTNEY J.J., GAUTIER T.N., GILLILAND R.L., JENKINS J., LATHAM D.W., LISSAUER J.J., MARCY G., MONET D.G., SASSELOV D. and WELSH W.F.

Abstract (from CDS):

Kepler photometry has revealed two unusual transiting companions: one orbiting an early A-star and the other orbiting a late B-star. In both cases, the occultation of the companion is deeper than the transit. The occultation and transit with follow-up optical spectroscopy reveal a 9400 K early A-star, KOI-74 (KIC 6889235), with a companion in a 5.2 day orbit with a radius of 0.08 R and a 10,000 K late B-star KOI-81 (KIC 8823868) that has a companion in a 24 day orbit with a radius of 0.2 R. We infer a temperature of 12,250 K for KOI-74b and 13,500 K for KOI-81b. We present 43 days of high duty cycle, 30 minute cadence photometry, with models demonstrating the intriguing properties of these objects, and speculate on their nature.

Abstract Copyright:

Journal keyword(s): stars: individual (KOI-74, KIC 6889235, KOI-81, KIC 8823868)

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3657 0
2 * tau Boo Ro* 13 47 15.74340 +17 27 24.8552 5.02 4.98 4.49 4.09 3.85 F7IV-V 914 1
3 HD 179949 BY* 19 15 33.2300861317 -24 10 45.673372382   6.772 6.237     F8V 367 1
4 KOI-81 EB* 19 35 08.5767783978 +45 01 06.448601916   11.51 11.32     B8V 49 0
5 KOI-81b Pl? 19 35 08.5767783978 +45 01 06.448601916           ~ 7 0
6 KOI-74b Pl? 19 53 17.8104748957 +42 23 18.509934393           ~ 8 1
7 KOI-74 EB* 19 53 17.8104748957 +42 23 18.509934393   10.83 10.70 11.002   A1V 57 1
8 V* CK Ind gD* 22 04 38.4299738040 -64 43 42.007848070   7.57 7.32     A9/F0V-IV 82 0

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2021.09.18-00:05:54

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