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Physical Sciences and Mathematics Commons

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Astrophysics and Astronomy

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Tennessee State University

2013

Planetary systems

Articles 1 - 5 of 5

Full-Text Articles in Physical Sciences and Mathematics

Hst Hot-Jupiter Transmission Spectral Survey: Evidence For Aerosols And Lack Of Tio In The Atmosphere Of Wasp-12b, David K. Sing, Alain Lecavelier Des Etangs, Jonathan J. Fortney, Adam Burrows, Frederic Pont, Hannah R. Wakeford, Gilda E. Ballester, Nikolay Nikolov, Gregory W. Henry, Suzanne Aigrain, Drake Deming, Thomas M. Evans, Neale P. Gibson, Catherine M. Huitson, Heather Knutson, Adam P. Showman, Alfred Vidal-Madjar, Paul A. Wilson, Michael H. Williamson, Kevin J. Zahnle Oct 2013

Hst Hot-Jupiter Transmission Spectral Survey: Evidence For Aerosols And Lack Of Tio In The Atmosphere Of Wasp-12b, David K. Sing, Alain Lecavelier Des Etangs, Jonathan J. Fortney, Adam Burrows, Frederic Pont, Hannah R. Wakeford, Gilda E. Ballester, Nikolay Nikolov, Gregory W. Henry, Suzanne Aigrain, Drake Deming, Thomas M. Evans, Neale P. Gibson, Catherine M. Huitson, Heather Knutson, Adam P. Showman, Alfred Vidal-Madjar, Paul A. Wilson, Michael H. Williamson, Kevin J. Zahnle

Information Systems and Engineering Management Research Publications

We present Hubble Space Telescope (HST) optical transmission spectra of the transiting hot-Jupiter WASP-12b, taken with the Space Telescope Imaging Spectrograph instrument. The resulting spectra cover the range 2900–10 300 Å which we combined with archival Wide Field Camera 3 spectra and Spitzer photometry to cover the full optical to infrared wavelength regions. With high spatial resolution, we are able to resolve WASP-12A's stellar companion in both our images and spectra, revealing that the companion is in fact a close binary M0V pair, with the three stars forming a triple-star configuration. We derive refined physical parameters of the WASP-12 system, …


Hst Hot Jupiter Transmission Spectral Survey: Detection Of Water In Hat-P-1b From Wfc3 Near-Ir Spatial Scan Observations, Hannah R. Wakeford, David K. Sing, Drake Deming, Neale P. Gibson, Jonathan J. Fortney, Adam Burrows, Gilda E. Ballester, Nikolay Nikolov, Suzanne Aigrain, Gregory W. Henry, Heather Knutson, Alain Lecavelier Des Etangs, Frederic Pont, Adam P. Showman, Alfred Vidal-Madjar, Kevin J. Zahnle Sep 2013

Hst Hot Jupiter Transmission Spectral Survey: Detection Of Water In Hat-P-1b From Wfc3 Near-Ir Spatial Scan Observations, Hannah R. Wakeford, David K. Sing, Drake Deming, Neale P. Gibson, Jonathan J. Fortney, Adam Burrows, Gilda E. Ballester, Nikolay Nikolov, Suzanne Aigrain, Gregory W. Henry, Heather Knutson, Alain Lecavelier Des Etangs, Frederic Pont, Adam P. Showman, Alfred Vidal-Madjar, Kevin J. Zahnle

Information Systems and Engineering Management Research Publications

We present Hubble Space Telescope near-infrared transmission spectroscopy of the transiting hot-Jupiter HAT-P-1b. We observed one transit with Wide Field Camera 3 using the G141 low-resolution grism to cover the wavelength range 1.087–1.678 μm. These time series observations were taken with the newly available spatial-scan mode that increases the duty cycle by nearly a factor of 2, thus improving the resulting photometric precision of the data. We measure a planet-to-star radius ratio of Rp/R* = 0.117 09 ± 0.000 38 in the white light curve with the centre of transit occurring at 245 6114.345 ± 0.000 133 (JD). We achieve …


An Hst Optical-To-Near-Ir Transmission Spectrum Of The Hot Jupiter Wasp-19b: Detection Of Atmospheric Water And Likely Absence Of Tio, Catherine M. Huitson, David K. Sing, Frederic Pont, Jonathan J. Fortney, Adam Burrows, Paul A. Wilson, Gilda E. Ballester, Nikolay Nikolov, Neale P. Gibson, Drake Deming, Suzanne Aigrain, Thomas M. Evans, Gregory W. Henry, Alain Lecavelier Des Etangs, Adam P. Showman, Alfred Vidal-Madjar, Kevin J. Zahnle Jul 2013

An Hst Optical-To-Near-Ir Transmission Spectrum Of The Hot Jupiter Wasp-19b: Detection Of Atmospheric Water And Likely Absence Of Tio, Catherine M. Huitson, David K. Sing, Frederic Pont, Jonathan J. Fortney, Adam Burrows, Paul A. Wilson, Gilda E. Ballester, Nikolay Nikolov, Neale P. Gibson, Drake Deming, Suzanne Aigrain, Thomas M. Evans, Gregory W. Henry, Alain Lecavelier Des Etangs, Adam P. Showman, Alfred Vidal-Madjar, Kevin J. Zahnle

Information Systems and Engineering Management Research Publications

We measure the transmission spectrum of WASP-19b from three transits using low-resolution optical spectroscopy from the Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS). The STIS spectra cover a wavelength range of 0.29–1.03 μm, with resolving power R = 500. The optical data are combined with archival near-infrared data from the HST Wide Field Camera 3 (WFC3) G141 grism, covering the wavelength range from 1.087 to 1.687 μm, with resolving power R = 130. We reach signal-to-noise levels between 3000 and 11 000 in 0.1 μm bins when measuring the transmission spectra from 0.53–1.687 μm. WASP-19 is known to …


The Prevalence Of Dust On The Exoplanet Hd 189733b From Hubble And Spitzer Observations, Frederic Pont, David K. Sing, Neale P. Gibson, Suzanne Aigrain, Gregory W. Henry, Nawal Husnoo May 2013

The Prevalence Of Dust On The Exoplanet Hd 189733b From Hubble And Spitzer Observations, Frederic Pont, David K. Sing, Neale P. Gibson, Suzanne Aigrain, Gregory W. Henry, Nawal Husnoo

Information Systems and Engineering Management Research Publications

The hot Jupiter HD 189733b is the most extensively observed exoplanet. Its atmosphere has been detected and characterized in transmission and eclipse spectroscopy, and its phase curve measured at several wavelengths. This paper brings together the results of our campaign to obtain the complete transmission spectrum of the atmosphere of this planet from UV to infrared with the Hubble Space Telescope, using the STIS, ACS and WFC3 instruments. We provide a new tabulation of the transmission spectrum across the entire visible and infrared range. The radius ratio in each wavelength band was re-derived, where necessary, to ensure a consistent treatment …


Host Star Properties And Transit Exclusion For The Hd 38529 Planetary System, Gregory W. Henry, Stephen R. Kane, Sharon X. Wang, Jason T. Wright, Tabetha S. Boyajian, Kaspar Von Braun, David R. Ciardi, Diana Dragomir, Chris D. Farrington, Debra A. Fischer, Natalie R. Hinkel, Andrew W. Howard, Eric Jensen, Gregory Laughlin, Suvrath Mahadevan, Genady Pilyavsky Apr 2013

Host Star Properties And Transit Exclusion For The Hd 38529 Planetary System, Gregory W. Henry, Stephen R. Kane, Sharon X. Wang, Jason T. Wright, Tabetha S. Boyajian, Kaspar Von Braun, David R. Ciardi, Diana Dragomir, Chris D. Farrington, Debra A. Fischer, Natalie R. Hinkel, Andrew W. Howard, Eric Jensen, Gregory Laughlin, Suvrath Mahadevan, Genady Pilyavsky

Information Systems and Engineering Management Research Publications

The transit signature of exoplanets provides an avenue through which characterization of exoplanetary properties may be undertaken, such as studies of mean density, structure, and atmospheric composition. The Transit Ephemeris Refinement and Monitoring Survey is a program to expand the catalog of transiting planets around bright host stars by refining the orbits of known planets discovered with the radial velocity technique. Here we present results for the HD 38529 system. We determine fundamental properties of the host star through direct interferometric measurements of the radius and through spectroscopic analysis. We provide new radial velocity measurements that are used to improve …