979 citations · 2.3k across the 13 of their papers we have counts for
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A new method to correct for host star variability in multi-epoch observations of exoplanet transmission spectra
Vatsal Panwar, Jean-Michel Désert, Kamen O. Todorov +5
Transmission spectra of exoplanets orbiting active stars suffer from wavelength-dependent effects due to stellar photospheric heterogeneity. WASP-19b, an ultra-hot Jupiter (T$_{eq}…
A new method to measure the spectra of transiting exoplanet atmospheres using multi-object spectroscopy
Vatsal Panwar, Jean-Michel Désert, Kamen O. Todorov +5
Traditionally, ground-based spectrophotometric observations probing transiting exoplanet atmospheres have employed a linear map between comparison and target star light curves (e.g…
Ground-based optical transmission spectrum of the hot Jupiter HAT-P-1b
Kamen O. Todorov, Jean-Michel Desert, Catherine M. Huitson +6
Time-series spectrophotometric studies of exoplanets during transit using ground-based facilities are a promising approach to characterize their atmospheric compositions. We aim to…
Gemini/GMOS Transmission Spectral Survey: Complete Optical Transmission Spectrum of the hot Jupiter WASP-4b
C. M. Huitson, J-. M Desert, J. L. Bean +3
We present the complete optical transmission spectrum of the hot Jupiter WASP-4b from 440-940 nm at R ~ 400-1500 obtained with the Gemini Multi-Object Spectrometers (GMOS); this is…
A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
David K. Sing, Jonathan J. Fortney, Nikolay Nikolov +18
Thousands of transiting exoplanets have been discovered, but spectral analysis of their atmospheres has so far been dominated by a small number of exoplanets and data spanning rela…
Magnesium in the atmosphere of the planet HD209458b: Observations of the thermosphere-exosphere transition region
A. Vidal-Madjar, C. M. Huitson, V. Bourrier +8
We report new near ultraviolet HST/STIS observations of atmospheric absorptions during the planetary transit of HD209458b. We detect absorption in atomic magnesium (MgI), while no…
HST hot Jupiter transmission spectral survey: evidence for aerosols and lack of TiO in the atmosphere of WASP-12b
D. K. Sing, A. Lecavelier des Etangs, J. J. Fortney +17
We present HST optical transmission spectra of the transiting hot Jupiter WASP-12b, taken with the STIS instrument. From the transmission spectra, we are able to decisively rule ou…
An HST Optical to Near-IR Transmission Spectrum of the Hot Jupiter WASP-19b: Detection of Atmospheric Water and Likely Absence of TiO
C. M. Huitson, D. K. Sing, F. Pont +14
We measure the transmission spectrum of WASP-19b from 3 transits using low-resolution optical spectroscopy from the HST Space Telescope Imaging Spectrograph (STIS). The STIS spectr…
GTC OSIRIS transiting exoplanet atmospheric survey: detection of sodium in XO-2b from differential long-slit spectroscopy
D. K. Sing, C. M. Huitson, M. Lopez-Morales +8
We present two transits of the hot-Jupiter exoplanet XO-2b using the Gran Telescopio Canarias (GTC). The time series observations were performed using long-slit spectroscopy of XO-…
Temperature-Pressure Profile of the hot Jupiter HD 189733b from HST Sodium Observations: Detection of Upper Atmospheric Heating
Catherine M. Huitson, David K. Sing, Alfred Vidal-Madjar +4
We present transmission spectra of the hot Jupiter HD 189733b taken with the Space Telescope Imaging Spectrograph aboard HST. The spectra cover the wavelength range 5808-6380 Ang w…
Corrigendum to "The upper atmosphere of the exoplanet HD209458b revealed by the sodium D lines: Temperature-pressure profile, ionization layer and thermosphere" [2011, A&A, 527, A110]
A. Vidal-Madjar, C. M. Huitson, A. Lecavelier des Etangs +7
An error was detected in the code used for the analysis of the HD209458b sodium profile (Vidal-Madjar et al. 2011). Here we present an updated T-P profile and briefly discuss the c…