Near infrared spectroscopic search for the close orbiting planet HD 75289b
arXiv:0705.0272 · doi:10.1111/j.1365-2966.2007.11990.x
Abstract
We present a search for the near infrared spectroscopic signature of the close orbiting extrasolar giant planet HD 75289b. We obtained ~230 spectra in the wavelength range 2.18 - 2.19 microns using the Phoenix spectrograph at Gemini South. By considering the direct spectrum, derived from irradiated model atmospheres, we search for the absorption profile signature present in the combined star and planet light. Since the planetary spectrum is separated from the stellar spectrum at most phases, we apply a phase dependent orbital model and tomographic techniques to search for absorption signatures. Because the absorption signature lies buried in the noise of a single exposure we apply a multiline deconvolution to the spectral lines available in order to boost the effective S/N ratio of the data. The wavelength coverage of 80 angstroms is expected to contain ~100 planetary lines, enabling a mean line with S/N ratio of ~800 to be achieved after deconvolution. We are nevertheless unable to detect the presence of the planet in the data and carry out further simulations to show that broader wavelength coverage should enable a planet like HD 75289b to be detected with 99.9 per cent (4 sigma) confidence. We investigate the sensitivity of our method and estimate detection tolerances for mismatches between observed and model planetary atmospheres.
References in corpus (34)
- The Infrared Spectrograph on the Spitzer Space Telescope
- Detection of an Extrasolar Planet Atmosphere
- The Limiting Effects of Dust in Brown Dwarf Model Atmospheres
- Catalog of Nearby Exoplanets
- Detection of Thermal Emission from an Extrasolar Planet
- Infrared radiation from an extrasolar planet
- The CORALIE survey for southern extra-solar planets VII. Two short-period Saturnian companions to HD108147 and HD168746
- A Unified Near Infrared Spectral Classification Scheme for T Dwarfs
- Possible Solutions to the Radius Anomalies of Transiting Giant Planets
- Measurement of Spin-Orbit Alignment in an Extrasolar Planetary System
- Albedo and Reflection Spectra of Extrasolar Giant Planets
- Photometric Light Curves and Polarization of Close-in Extrasolar Giant Planets
- Reflected Spectra and Albedos of Extrasolar Giant Planets I: Clear and Cloudy Atmospheres
- Theoretical Spectra and Atmospheres of Extrasolar Giant Planets
- The phase-dependent Infrared brightness of the extrasolar planet upsilon Andromedae b
- Strong Infrared Emission from the Extrasolar Planet HD189733b
- A Spectrum of an Extrasolar Planet
- Atmosphere, Interior, and Evolution of the Metal-Rich Transiting Planet HD 149026b
- A Spitzer Spectrum of the Exoplanet HD 189733b
- An Upper Limit on the Reflected Light from the Planet Orbiting the Star tau Bootis
- An Upper Limit on the Albedo of HD 209458b: Direct Imaging Photometry with the MOST Satellite
- Irradiated Planets
- Phase-Dependent Properties of Extrasolar Planet Atmospheres
- Measurement of the Spin-Orbit Alignment in the Exoplanetary System HD 189733
- Probable detection of starlight reflected from the giant exoplanet orbiting tau Bootis
- Infrared Observations During the Secondary Eclipse of HD 209458 b II. Strong Limits on the Infrared Spectrum Near 2.2 Microns
- A search for starlight reflected from upsilon And's innermost planet
- A new upper limit on the reflected starlight from Tau Bootis b
- A Sensitive Search for Methane in the Infrared Spectrum of Tau Bootis
- System Parameters of the Transiting Extrasolar Planet HD 209458b
- J-Band Infrared Spectroscopy of a Sample of Brown Dwarfs Using Nirspec on Keck II
- A search for starlight reflected from HD 75289 b
- High-precision K-band photometry of the secondary eclipse of HD209458
- Prospects for Spectroscopic Reflected-light Planet Searches
Cited by in corpus (14)
- Weighing The Non-Transiting Hot Jupiter Tau BOO b
- Discovery of water at high spectral resolution in the atmosphere of 51 Peg b
- Re-Evaluating WASP-12b: Strong Emission at 2.315 micron, Deeper Occultations, and an Isothermal Atmosphere
- High Resolution, Differential, Near-infrared Transmission Spectroscopy of GJ 1214b
- A Search for molecules in the atmosphere of HD 189733b
- ROPS: A New Search for Habitable Earths in the Southern Sky
- Arid or Cloudy: Characterizing the Atmosphere of the super-Earth 55 Cancri e using High-Resolution Spectroscopy
- Limits on the 2.2 microns contrast ratio of the close orbiting planet HD 189733b
- Ground-based, Near-infrared Exospectroscopy. II. Tentative Detection of Emission From the Extremely Hot Jupiter WASP-12b
- HD 75289Ab revisited - Searching for starlight reflected from a hot Jupiter
- HD 179949b: A Close Orbiting Extrasolar Giant Planet with a stratosphere?
- How to Characterize the Atmosphere of a Transiting Exoplanet
- On the Effects of Planetary Oblateness on Exoplanet Studies
- High-resolution spectroscopic search for the thermal emission of the extrasolar planet HD 217107 b