KEPLER OBSERVATIONS OF TRANSITING HOT COMPACT OBJECTS

@article{Rowe2010KEPLEROO,
  title={KEPLER OBSERVATIONS OF TRANSITING HOT COMPACT OBJECTS},
  author={Jason F. Rowe and William J. Borucki and David J. Koch and Steve B. Howell and Gibor S. Basri and Natalie M. Batalha and Timothy M. Brown and Douglas A. Caldwell and William D. Cochran and Edward Wood Dunham and Andrea K. Dupree and Jonathan J. Fortney and Thomas Gautier and Ronald L. Gilliland and Jon M. Jenkins and David W. Latham and Jack J. Lissauer and Geoffrey W. Marcy and David G. Monet and Dimitar D. Sasselov and William F. Welsh},
  journal={The Astrophysical Journal},
  year={2010},
  volume={713}
}
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… Expand

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References

SHOWING 1-10 OF 22 REFERENCES
DISCOVERY OF THE TRANSITING PLANET KEPLER-5b
We present 44 days of high duty cycle, ultra precise photometry of the 13th magnitude star Kepler-5 (KIC 8191672, T eff= 6300 K, log g= 4.1), which exhibits periodic transits with a depth of 0.7%.Expand
Optical Detection of a Variable Millisecond Pulsar Companion in 47 Tucanae
Using results from radio and X-ray observations of millisecond pulsars in 47 Tucanae, and extensive Hubble Space Telescope U, V, and I imaging of the globular cluster core, we have derived a commonExpand
MOST detects variability on τ Bootis A possibly induced by its planetary companion
Context. There is considerable interest in the possible interaction between parent stars and giant planetary companions in 51 Peg-type systems. Aims. We shall demonstrate from MOST satelliteExpand
The Masses of the Millisecond Pulsar J1012+5307 and Its White Dwarf Companion
We report on spectroscopy of the white dwarf companion of the millisecond radio pulsar PSR J1012+5307. We find strong Balmer absorption lines, as would be expected for a cool DA white dwarf. TheExpand
A Helium White Dwarf of Extremely Low Mass
We analyze the spectrum of an unusually low mass white dwarf, SDSS J123410.37-022802.9 (0335-264-52000), found in our recent, white dwarf catalog from the first data release (DR1) of the SloanExpand
The masses of PSR J1911-5958A and its white dwarf companion
We present spectroscopic and photometric observations of the optical counterpart to PSR J1911−5958A, a millisecond pulsar located towards the globular cluster NGC6752. We measure radial velocitiesExpand
Kepler Planet-Detection Mission: Introduction and First Results
TLDR
The planetary findings derived from the first six weeks of observations with the Kepler mission are summarized, which include the detection of five new exoplanets, which confirm the existence of planets with densities substantially lower than those predicted for gas giant planets. Expand
Erratum: “Evidence for Planet-induced Chromospheric Activity on HD 179949” (ApJ, 597, 1092 [2003])
We have detected the synchronous enhancement of Ca II H & K emission with the short-period planetary orbit in HD 179949. High-resolution spectra taken on three observing runs extending more than aExpand
Ellipsoidal Oscillations Induced by Substellar Companions: A Prospect for the Kepler Mission
Hundreds of substellar companions to solar-type stars will be discovered with the Kepler satellite. Kepler's extreme photometric precision gives access to low-amplitude stellar variabilityExpand
Discovery and analysis of p-mode and g-mode oscillations in the A-type primary of the eccentric binary HD 209295
We have discovered both intermediate-order gravity mode and low-order pressure mode pulsation in the same star, HD 209295. It is therefore both a γ Doradus and a δ Scuti star, which makes it theExpand
...
1
2
3
...