HIGH-RESOLUTION SPECTROSCOPIC FOLLOW-UP OF OGLE PLANETARY TRANSIT CANDIDATES IN THE GALACTIC BULGE: TWO POSSIBLE JUPITER-MASS PLANETS AND TWO BLENDS

@article{Konacki2003HIGHRESOLUTIONSF,
  title={HIGH-RESOLUTION SPECTROSCOPIC FOLLOW-UP OF OGLE PLANETARY TRANSIT CANDIDATES IN THE GALACTIC BULGE: TWO POSSIBLE JUPITER-MASS PLANETS AND TWO BLENDS},
  author={Maciej Konacki and Guillermo Torres and Dimitar D. SasselovSaurabh Jha},
  journal={The Astrophysical Journal},
  year={2003},
  volume={597},
  pages={1076-1091}
}
We report the results of our campaign to follow up spectroscopically several candidate extrasolar transiting planets from the OGLE-III survey in the direction of the Galactic center, announced in 2001. All of these objects present shallow and periodic dips in brightness that may be due to planetary companions. Our Keck I/High Resolution Echelle Spectrometer (HIRES) observations have revealed two interesting cases (OGLE-TR-10 with a period of 3.1 days and OGLE-TR-58 with a period of 4.3 days… 
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References

SHOWING 1-10 OF 33 REFERENCES
OGLE-TR-3: A possible new transiting planet ?
Recently, 59 low-luminosity object transits were reported from the Optical Gravitational Lensing Experiment (OGLE). Our follow-up low-resolution spectroscopy of 16 candidates provided two objects,
Planets in Stellar Clusters Extensive Search. I. Discovery of 47 Low-Amplitude Variables in the Metal-rich Cluster NGC 6791 with Millimagnitude Image Subtraction Photometry
We have undertaken a long-term project, the Planets in Stellar Clusters Extensive Search (PISCES), to search for transiting planets in open clusters. As our first target, we have chosen NGC 6791—a
Detection of Planetary Transits Across a Sun-like Star.
TLDR
High-precision, high-cadence photometric measurements of the star HD 209458 are reported, which is known from radial velocity measurements to have a planetary-mass companion in a close orbit and the detailed shape of the transit curve due to both the limb darkening of thestar and the finite size of the planet is clearly evident.
No planet for HD 166435
The G0 V star HD 166435 has been observed by the ber-fed spectrograph ELODIE as one of the targets in the large extra-solar planet survey that we are conducting at the Observatory of Haute-Provence.
On the Selection of Photometric Planetary Transits
We present a new method for differentiating between planetary transits and eclipsing binaries on the basis of the presence of ellipsoidal light variations. These variations can be used to detect
THE NEW TRANSITING PLANET OGLE-TR-56b: ORBIT AND ATMOSPHERE
Motivated by the identification of the very close-in extrasolar giant planet OGLE-TR-56b (P = 1.2 days, a = 0.023 AU, Mp = 0.9MJ), we explore implications of its existence for problems of tidal
ASTRONOMY AND ASTROPHYSICS Spectral Types of Planetary Host Star Candidates: Two New Transiting Planets?
Recently, 46 low-luminosity object transits were reported from the Optical Gravitational Lensing Experiment. Our follow-up spectroscopy of the 16 most promising candidates provides a spectral
A Transiting "51 Peg-like" Planet.
Doppler measurements from Keck exhibit a sinusoidal periodicity in the velocities of the G0 dwarf HD 209458, having a semiamplitude of 81 m s-1 and a period of 3.5239 days, which is indicative of a
An extrasolar planet that transits the disk of its parent star
Planets orbiting other stars could in principle be found through the periodic dimming of starlight as a planet moves across—or ‘transits’—the line of sight between the observer and the star.
Ellipsoidal Variability in the OGLE Planetary Transit Candidates
We analyze the photometry of 117 OGLE stars with periodic transit events for the presence of ellipsoidal light variations, which indicate the presence of massive companions. We find that ~50% of
...
1
2
3
4
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