The Broadband Infrared Emission Spectrum of the Exoplanet TrES-3 (2009)
Fressin, Francois, Knutson, Heather A., Charbonneau, David, O'Donovan, Francis T., Burrows, Adam, Deming, Drake, ...
We use the Spitzer Space Telescope to estimate the dayside thermal emission of the exoplanet TrES-3 integrated in the 3.6, 4.5, 5.8, and 8.0 micron bandpasses of the Infrared Array Camera (IRAC)...
Detection of Planetary Emission from the Exoplanet TrES-2 using Spitzer /IRAC (2009)
O'Donovan, Francis T., Charbonneau, David, Harrington, Joseph, Seager, Sara, Madhusudhan, N., Deming, Drake, ...
With the recent torrent of discoveries of new transiting planets, there have been ample candidates for observations using the Spitzer Space Telescope. We present here the results of our observations...
A Search for Additional Planets in the NASA EPOXI Observations of the Exoplanet System GJ 436 (2009)
Ballard, Sarah, Christiansen, Jessie L., Charbonneau, David, Deming, Drake, Holman, Matthew J., Fabrycky, Daniel, ...
We present time series photometry of the M dwarf transiting exoplanet system GJ 436 obtained with the the EPOCh (Extrasolar Planet Observation and Characterization) component of the NASA EPOXI...
The 8 Micron Phase Variation of the Hot Saturn HD 149026b (2009)
Knutson, Heather A., Charbonneau, David, Cowan, Nicolas B., Fortney, Jonathan J., Showman, Adam P., Agol, Eric, ...
We monitor the star HD 149026 and its Saturn-mass planet at 8.0 micron over slightly more than half an orbit using the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We find an increase...
Irwin, Jonathan, Charbonneau, David, Berta, Zachory K., Quinn, Samuel N., Latham, David W., Torres, Guillermo, ...
We report the detection of eclipses in GJ 3236, a bright (I = 11.6) very low mass binary system with an orbital period of 0.77 days. Analysis of light- and radial velocity curves of the system...
Mass and radius determinations for five transiting M-dwarf stars (2009)
Fernandez, Jose M., Latham, David W., Torres, Guillermo, Everett, Mark E., Mandushev, Georgi, Charbonneau, David, ...
We have derived masses and radii for both components in five short-period single-lined eclipsing binary stars discovered by the TrES wide-angle photometric survey for transiting planets. All these...
Sozzetti, Alessandro, Torres, Guillermo, Charbonneau, David, Winn, Joshua N., Korzennik, Sylvain G., Holman, Matthew J., ...
We report new spectroscopic and photometric observations of the parent stars of the recently discovered transiting planets TrES-3 and TrES-4. A detailed abundance analysis based on high-resolution...
Absolute properties of the low-mass eclipsing binary CM Draconis (2009)
Morales, Juan Carlos, Ribas, Ignasi, Jordi, Carme, Torres, Guillermo, Gallardo, José, Guinan, Edward F., ...
12 pages, 7 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0810.1541
Sozzetti, Alessandro, Torres, Guillermo, Charbonneau, David, Winn, Joshua N., Korzennik, Sylvain G., Holman, Matthew J., ...
We report new spectroscopic and photometric observations of the parent stars of the recently discovered transiting planets TrES-3 and TrES-4. A detailed abundance analysis based on high-resolution...
Strong Water Absorption in the Dayside Emission Spectrum of the Planet HD 189733b (2009)
Grillmair, Carl J., Burrows, Adam, Charbonneau, David, Armus, Lee, Stauffer, John, Meadows, Victoria, ...
Recent observations of the extrasolar planet HD 189733b did not reveal the presence of water in the emission spectrum of the planet. Yet models of such 'Hot Jupiter' planets predict an abundance of...
Strong water absorption in the dayside emission spectrum of the planet HD189733b (2008)
Grillmair, Carl J., Burrows, Adam, Charbonneau, David, Armus, Lee, Stauffer, John, Meadows, Victoria, ...
Recent observations of the extrasolar planet HD189733b did not reveal the presence of water in the emission spectrum of the planet^1. Yet models of such 'hot-Jupiter' planets predict an abundance of...
T-Lyr1-17236 : a long-period low-mass eclipsing binary (2008)
Devor, Jonathan, Charbonneau, David, Torres, Guillermo, Blake, Cullen H., White, Russel J., Rabus, Markus, ...
We describe the discovery of a 0.68+0.52 M⊙ eclipsing binary (EB) with an 8.4 day orbital period, found through a systematic search of 10 fields of the Trans-atlantic Exoplanet Survey (TrES). Such...
Detection of a Temperature Inversion in the Broadband Infrared Emission Spectrum of TrES-4 (2008)
Knutson, Heather A., Charbonneau, David, Burrows, Adam, O'Donovan, Francis T., Mandushev, Georgi
We estimate the strength of the bandpass-integrated thermal emission from the extrasolar planet TrES-4 at 3.6, 4.5, 5.8, and 8.0 micron using the Infrared Array Camera (IRAC) on the Spitzer Space...
Showman, Adam P., Fortney, Jonathan J., Lian, Yuan, Marley, Mark S., Freedman, Richard S., Knutson, Heather A., ...
We present global, three-dimensional numerical simulations of HD 189733b and HD 209458b that couple the atmospheric dynamics to a realistic representation of non-gray cloud-free radiative transfer....
The Rise of the Vulcans (2008)
In this introductory review presented at the IAU Symposium 253 "Transiting Planets", I summarize the path from the initial 1995 radial-velocity discovery of hot Jupiters to the current rich panoply...
T-Lyr1-17236: A Long-Period Low-Mass Eclipsing Binary (2008)
Devor, Jonathan, Charbonneau, David, Torres, Guillermo, Blake, Cullen H., White, Russel J., Rabus, Markus, ...
We describe the discovery of a 0.68+0.52 solar mass eclipsing binary (EB) with an 8.4-day orbital period, found through a systematic search of ten fields of the Trans-atlantic Exoplanet Survey...
Preliminary Results on HAT-P-4, TrES-3, XO-2, and GJ 436 from the NASA EPOXI Mission (2008)
Ballard, Sarah, Charbonneau, David, A'Hearn, Michael F., Deming, Drake, Holman, Matthew J., Christiansen, Jessie L., ...
EPOXI (EPOCh + DIXI) is a NASA Discovery Program Mission of Opportunity using the Deep Impact flyby spacecraft. The EPOCh (Extrasolar Planet Observation and Characterization) Science Investigation...
Christiansen, Jessie L., Charbonneau, David, A'Hearn, Michael F., Deming, Drake, Holman, Matthew J., Ballard, Sarah, ...
The NASA Discovery mission EPOXI, utilizing the Deep Impact flyby spacecraft, comprises two phases: EPOCh (Extrasolar Planet Observation and Characterization) and DIXI (Deep Impact eXtended...
Transits and secondary eclipses of HD 189733 with Spitzer (2008)
Agol, Eric, Cowan, Nicolas B., Bushong, James, Knutson, Heather, Charbonneau, David, Deming, Drake, ...
We present limits on transit timing variations and secondary eclipse depth variations at 8 microns with the Spitzer Space Telescope IRAC camera. Due to the weak limb darkening in the infrared and...
The MEarth project: searching for transiting habitable super-Earths around nearby M-dwarfs (2008)
Irwin, Jonathan, Charbonneau, David, Nutzman, Philip, Falco, Emilio
Due to their small radii, M-dwarfs are very promising targets to search for transiting super-Earths, with a planet of 2 Earth radii orbiting an M5 dwarf in the habitable zone giving rise to a 0.5%...
A Precise Estimate of the Radius of HD 149026b (2008)
Nutzman, Philip, Charbonneau, David, Winn, Joshua N., Knutson, Heather A., Fortney, Jonathan J., Holman, Matthew J., ...
We present Spitzer 8 micron transit observations of the extrasolar planet system HD 149026. At this wavelength, transit light curves are weakly affected by stellar limb-darkening, allowing for a...
A Precise Estimate of the Radius of the Exoplanet HD 149026b from Spitzer Photometry (2008)
Nutzman, Philip, Charbonneau, David, Winn, Joshua N., Knutson, Heather A., Fortney, Jonathan J., Holman, Matthew J., ...
We present Spitzer 8 micron transit observations of the extrasolar planet HD 149026b. At this wavelength, transit light curves are weakly affected by stellar limb-darkening, allowing for a simpler...
The Transit Light Curve Project. VIII. Six Occultations of the Exoplanet TrES-3 (2008)
Winn, Joshua N., Holman, Matthew J., Shporer, Avi, Fernandez, Jose, Mazeh, Tsevi, Latham, David W., ...
We present photometry of the exoplanet host star TrES-3 spanning six occultations (secondary eclipses) of its giant planet. No flux decrements were detected, leading to 99%-confidence upper limits on...
A Spectroscopic Binary at the M/L Transition (2008)
Blake, Cullen H., Charbonneau, David, White, Russel J., Torres, Guillermo, Marley, Mark S., Saumon, Didier
We report the discovery of a single-lined spectroscopic binary with an Ultra Cool Dwarf (UCD) primary with a spectral type between M8 and L0.5. This system was discovered during the course of an...
Devor, Jonathan, Charbonneau, David, O'Donovan, Francis T., Mandushev, Georgi, Torres, Guillermo
In recent years, we have witnessed an explosion of photometric time-series data, collected for the purpose of finding a small number of rare sources, such as transiting extrasolar planets and...
Multi-Wavelength Constraints on the Day-Night Circulation Patterns of HD 189733b (2008)
Knutson, Heather A., Charbonneau, David, Cowan, Nicolas B., Fortney, Jonathan J., Showman, Adam P., Agol, Eric, ...
We present new Spitzer observations of the phase variation of the hot Jupiter HD 189733b in the MIPS 24 micron bandpass, spanning the same part of the planet's orbit as our previous observations in...
The Broadband Infrared Emission Spectrum of the Exoplanet HD 189733b (2008)
Charbonneau, David, Knutson, Heather A., Barman, Travis, Allen, Lori E., Mayor, Michel, Megeath, S. Thomas, ...
We present Spitzer Space Telescope time series photometry of the exoplanet system HD 189733 spanning two times of secondary eclipse, when the planet passes out of view behind the parent star. We...
TrES-1: The Transiting Planet of a Bright K0V Star (2008)
Roi Alonso Timothy, Timothy M. Brown, Guillermo Torres, Davidw. Latham, Georgi M, Juana. Belmonte, ...
Instituto de Astrofsica de Canarias, 38200 La Laguna, Tenerife, SPAIN High Altitude Observatory/National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80307 USA Harvard-Smithsonian...
Parameters and Predictions for the Long-Period Transiting Planet HD 17156b (2008)
Irwin, Jonathan, Charbonneau, David, Nutzman, Philip, Welsh, William F., Rajan, Abhijith, Hidas, Marton, ...
We report high-cadence time-series photometry of the recently-discovered transiting exoplanet system HD 17156, spanning the time of transit on UT 2007 October 1, from three separate observatories. We...
Devor, Jonathan, Charbonneau, David, O'Donovan, Francis T., Mandushev, Georgi, Torres, Guillermo
In recent years we have witnessed an explosion of photometric time-series data, collected for the purpose of finding a small number of rare sources, such as transiting extrasolar planets and...
David Charbonneau, Timothy M. Brown, Robert W. Noyes, Ronald L. Gilliland
We report high precision spectrophotometric observations of four planetary transits of HD 209458, in the region of the sodium resonance doublet at 589.3 nm. We find that the photometric dimming...
Observations of Extrasolar Planets During the non-Cryogenic Spitzer Space Telescope Mission (2007)
Deming, Drake, Agol, Eric, Charbonneau, David, Cowan, Nicolas, Knutson, Heather, Marengo, Massimo
Precision infrared photometry from Spitzer has enabled the first direct studies of light from extrasolar planets, via observations at secondary eclipse in transiting systems. Current Spitzer results...
Burrows, Adam, Hubeny, Ivan, Budaj, Jano, Knutson, Heather, Charbonneau, David
We find that a theoretical fit to all the HD 209458b data at secondary eclipse requires that the dayside atmosphere of HD 209458b have a thermal inversion and a stratosphere. This inversion is caused...
Knutson, Heather A., Charbonneau, David, Allen, Lori E., Burrows, Adam, Megeath, S. Thomas
We estimate the strength of the bandpass-integrated thermal emission from the extrasolar planet HD 209458b at 3.6, 4.5, 5.8, and 8.0 microns using the Infrared Array Camera (IRAC) on the Spitzer...
Nutzman, Philip, Charbonneau, David
By targeting nearby M dwarfs, a transit search using modest equipment is capable of discovering planets as small as 2 Earth radii in the habitable zones of their host stars. The MEarth Project, a...
TrES-4: A Transiting Hot Jupiter of Very Low Density (2007)
Mandushev, Georgi, O'Donovan, Francis T., Charbonneau, David, Torres, Guillermo, Latham, David W., Bakos, Gáspár Á., ...
We report the discovery of TrES-4, a hot Jupiter that transits the star GSC 02620-00648 every 3.55 days. From high-resolution spectroscopy of the star we estimate a stellar effective temperature of...
The Transit Light Curve (TLC) Project. VI. Three Transits of the Exoplanet TrES-2 (2007)
Holman, Matthew J., Winn, Joshua N., Latham, David W., O'Donovan, Francis T., Charbonneau, David, Torres, Guillermo, ...
Of the nearby transiting exoplanets that are amenable to detailed study, TrES-2 is both the most massive and the one with the largest impact parameter. We present z-band photometry of three transits...
Introduction: Previous studies have linked an insertion/deletion polymorphism in the angiotensin-converting enzyme (ACE) gene with variability in the response of muscle strength and mass to strength...
Introduction: Previous studies have linked an insertion/deletion polymorphism in the angiotensin-converting enzyme (ACE) gene with variability in the response of muscle strength and mass to strength...
The Dynamics-Based Approach to Studying Terrestrial Exoplanets (2007)
Charbonneau, David, Deming, Drake
One of the great quests of astronomy is to obtain the spectrum of a terrestrial planet orbiting within the habitable zone of its star, and the dominant challenge in doing so is to isolate the light...
A Ground-Based Search for Thermal Emission from the Exoplanet TrES-1 (2007)
Knutson, Heather A., Charbonneau, David, Deming, Drake, Richardson, L. Jeremy
Eclipsing planetary systems give us an important window on extrasolar planet atmospheres. By measuring the depth of the secondary eclipse, when the planet moves behind the star, we can estimate the...
Multiepoch Radial Velocity Observations of L Dwarfs (2007)
Blake, Cullen H., Charbonneau, David, White, Russel J., Marley, Mark S., Saumon, Didier
We report on the development of a technique for precise radial-velocity measurements of cool stars and brown dwarfs in the near infrared. Our technique is analogous to the Iodine (I2) absorption cell...
TrES Exoplanets and False Positives: Finding the Needle in the Haystack (2007)
O'Donovan, Francis T., Charbonneau, David
Our incomplete understanding of the formation of gas giants and of their mass-radius relationship has motivated ground-based, wide-field surveys for new transiting extrasolar giant planets. Yet,...
TrES-3: A Nearby, Massive, Transiting Hot Jupiter in a 31-Hour Orbit (2007)
O'Donovan, Francis T., Charbonneau, David, Bakos, Gáspár Á., Mandushev, Georgi, Dunham, Edward W., Brown, Timothy M., ...
We describe the discovery of a massive transiting hot Jupiter with a very short orbital period (1.30619 d), which we name TrES-3. From spectroscopy of the host star GSC 03089-00929, we measure T_eff...
A map of the day-night contrast of the extrasolar planet HD 189733b (2007)
Knutson, Heather A., Charbonneau, David, Allen, Lori E., Fortney, Jonathan J., Agol, Eric, Cowan, Nicolas B., ...
"Hot Jupiter" extrasolar planets are expected to be tidally locked because they are close (
The Transit Light Curve Project. VI. Three Transits of the Exoplanet TrES-2 (2007)
Holman, Matthew J., Winn, Joshua N., Latham, David W., O'Donovan, Francis T., Charbonneau, David, Torres, Guillermo, ...
Of the nearby transiting exoplanets that are amenable to detailed study, TrES-2 is both the most massive and has the largest impact parameter. We present z-band photometry of three transits of...
Thesis (M. A.) -- University of Maryland, College Park, 2007.
The Transit Light Curve Project. I. Four Consecutive Transits of the Exoplanet XO-1b (2006)
Holman, Matthew J., Winn, Joshua N., Latham, David W., O'Donovan, Francis T., Charbonneau, David, Bakos, Gáspár A., ...
We present RIz photometry of four consecutive transits of the newly discovered exoplanet XO-1b. We improve on the estimates of the transit parameters, finding the planetary radius to be RP = 1.184...
Outcome of Six Candidate Transiting Planets from a TrES Field in Andromeda (2006)
O'Donovan, Francis T., Charbonneau, David, Alonso, Roi, Brown, Timothy M., Mandushev, Georgi, Dunham, Edward W., ...
Driven by the incomplete understanding of the formation of gas giant extrasolar planets and of their mass-radius relationship, several ground-based, wide-field photometric campaigns are searching the...
MECI: A Method for Eclipsing Component Identification (2006)
Devor, Jonathan, Charbonneau, David
We describe an automated method for assigning the most probable physical parameters to the components of an eclipsing binary, using only its photometric light curve and combined colors. With...
TrES-2: The First Transiting Planet in the Kepler Field (2006)
O'Donovan, Francis T., Charbonneau, David, Mandushev, Georgi, Dunham, Edward W., Latham, David W., Torres, Guillermo, ...
We announce the discovery of the second transiting hot Jupiter discovered by the Trans-atlantic Exoplanet Survey. The planet, which we dub TrES-2, orbits the nearby star GSC 03549-02811 every 2.47063...
The Transit Light Curve (TLC) Project. I. Four Consecutive Transits of the Exoplanet XO-1b (2006)
Holman, Matthew J., Winn, Joshua N., Latham, David W., O'Donovan, Francis T., Charbonneau, David, Bakos, Gaspar A., ...
We present RIz photometry of four consecutive transits of the newly discovered exoplanet XO-1b. We improve upon the estimates of the transit parameters, finding the planetary radius to be R_P = 1.184...
Using Stellar Limb-Darkening to Refine the Properties of HD 209458b (2006)
Knutson, Heather, Charbonneau, David, Noyes, Robert W., Brown, Timothy M., Gilliland, Ronald L.
We use multi-band photometry to refine estimates for the planetary radius and orbital inclination of the transiting planet system HD 209458. We gathered 1066 spectra over four distinct transits with...
When Extrasolar Planets Transit Their Parent Stars (2006)
Charbonneau, David, Brown, Timothy M., Burrows, Adam, Laughlin, Greg
When extrasolar planets are observed to transit their parent stars, we are granted unprecedented access to their physical properties. It is only for transiting planets that we are permitted direct...
O'Donovan, Francis T., Charbonneau, David, Torres, Guillermo, Mandushev, Georgi, Dunham, Edward W., Latham, David W., ...
Ground-based wide-field surveys for nearby transiting gas giants are yielding far fewer true planets than astrophysical false positives, of which some are difficult to reject. Recent experience has...
Resolving the Surfaces of Extrasolar Planets With Secondary Eclipse Light Curves (2006)
Williams, Peter K. G., Charbonneau, David, Cooper, Curtis S., Showman, Adam P., Fortney, Jonathan J.
We present a method that employs the secondary eclipse light curves of transiting extrasolar planets to probe the spatial variation of their thermal emission. This technique permits an observer to...
Hot Jupiters: Lands of Plenty (2005)
In late August 2005, 80 researchers from more than 15 countries convened for a 4-day conference entitled ``The Tenth Anniversary of 51 Peg b: Status and Prospects for Hot Jupiter Studies''. The...
A Method For Eclipsing Component Identification In Large Photometric Datasets (2005)
Devor, Jonathan, Charbonneau, David
We describe an automated method for assigning the most likely physical parameters to the components of an eclipsing binary (EB), using only its photometric light curve and combined color. In...
Transit Photometry of the Core-Dominated Planet HD 149026b (2005)
Charbonneau, David, Winn, Joshua N., Latham, David W., Bakos, Gaspar, Falco, Emilio E., Holman, Matthew J., ...
We report g, V, and r photometric time series of HD 149026 spanning predicted times of transit of the Saturn-mass planetary companion, which was recently discovered by Sato and collaborators. We...
Measurement of Spin-Orbit Alignment in an Extrasolar Planetary System (2005)
Winn, Joshua N., Noyes, Robert W., Holman, Matthew J., Charbonneau, David, Ohta, Yasuhiro, Taruya, Atsushi, ...
We determine the stellar, planetary, and orbital properties of the transiting planetary system HD 209458, through a joint analysis of high-precision radial velocities, photometry, and timing of the...
Detection of Thermal Emission from an Extrasolar Planet (2005)
Charbonneau, David, Allen, Lori E., Megeath, S. Thomas, Torres, Guillermo, Alonso, Roi, Brown, Timothy M., ...
We present Spitzer Space Telescope infrared photometric time series of the transiting extrasolar planet system TrES-1. The data span a predicted time of secondary eclipse, corresponding to the...
The Challenge of Wide-Field Transit Surveys: The Case of GSC 01944-02289 (2005)
Mandushev, Georgi, Torres, Guillermo, Latham, David W., Charbonneau, David, Alonso, Roi, White, Russel J., ...
Wide-field searches for transiting extra-solar giant planets face the difficult challenge of separating true transit events from the numerous false positives caused by isolated or blended eclipsing...
Detection of Thermal Emission from an Extrasolar Planet (2005)
David Charbonneau, Lori E. Allen, S. Thomas Megeath, Guillermo Torres, Roi Alonso, Timothy M. Brown, ...
We present Spitzer Space Telescope infrared photometric time series of the transiting extrasolar planet system TrES-1. The data span a predicted time of secondary eclipse, corresponding to the...
Debra A. Fischer, Gregory Laughlin, Geoffrey W. Marcy, R. Paul Butler, Steven S. Vogt, John A. Johnson, ...
We report the detection of two short-period planets discovered at Keck Observatory. HD 149143 is a metal-rich G0 IV star with a planet of M sin i 1:33MJ and an orbital radius of 0.053 AU. The...
Deming, Drake, Brown, Timothy M., Charbonneau, David, Harrington, Joseph, Richardson, L. Jeremy
We have revisited the search for carbon monoxide absorption features in transmission during the transit of the extrasolar planet HD 209458b. We acquired 1077 high resolution spectra at 2 microns...
Hubble's View of Transiting Planets (2004)
The Hubble Space Telescope is uniquely able to study planets that are observed to transit their parent stars. The extremely stable platform afforded by an orbiting spacecraft, free from the...
TrES-1: The Transiting Planet of a Bright K0V Star (2004)
Alonso, Roi, Brown, Timothy M., Torres, Guillermo, Latham, David W., Sozzetti, Alessandro, Mandushev, Georgi, ...
We report the detection of a transiting Jupiter-sized planet orbiting a relatively bright (V=11.79) K0V star. We detected the transit light-curve signature in the course of the TrES multi-site...
Astrophysical False Positives Encountered in Wide-Field Transit Searches (2004)
Charbonneau, David, Brown, Timothy M., Dunham, Edward W., Latham, David W., Looper, Dagny L., Mandushev, Georgi
Wide-field photometric transit surveys for Jupiter-sized planets are inundated by astrophysical false positives, namely systems that contain an eclipsing binary and mimic the desired photometric...
Astrophysical False Positives Encountered in Wide-Field Transit Searches (2004)
Charbonneau, David, Brown, Timothy M., Dunham, Edward W., Latham, David W., Looper, Dagny L., Mandushev, Georgi
Wide-field photometric transit surveys for Jupiter-sized planets are inundated by astrophysical false positives, namely systems that contain an eclipsing binary and mimic the desired photometric...
Sherlock: An Automated Follow-Up Telescope for Wide-Field Transit Searches (2003)
Kotredes, Lewis, Charbonneau, David, Looper, Dagny L., O'Donovan, Francis T.
The most significant challenge currently facing photometric surveys for transiting gas-giant planets is that of confusion with eclipsing binary systems that mimic the photometric signature. A simple...
First Results From Sleuth: The Palomar Planet Finder (2003)
O'Donovan, Francis T., Charbonneau, David, Kotredes, Lewis
We discuss preliminary results from our first search campaign for transiting planets performed using Sleuth, an automated 10 cm telescope with a 6 degree square field of view. We monitored a field in...
A Review of the Current Status of Follow-Up Techniques to Study Known Extrasolar Planets (2003)
I present a review of observational efforts to study known extrasolar planets by methods that are complementary to the radial velocity technique. I describe the current state of attempts to detect...
Spectroscopy of Molecular Hydrogen Emission from KH 15D (2003)
Deming, Drake, Charbonneau, David, Harrington, Joseph
We report infrared spectroscopy of the unusual eclipsing pre-main sequence object KH 15D, obtained using NIRSPEC on Keck II. During eclipse, observations using low spectral resolution (1000) reveal...
Spectropolarimetry and Modeling of the Eclipsing T Tauri Star KH 15D (2003)
Agol, Eric, Barth, Aaron, Wolf, Sebastian, Charbonneau, David
KH 15D is a strongly variable T Tauri star in the young star cluster NGC 2264 that shows a decrease in flux of 3.5 magnitudes lasting for 18 days and repeating every 48 days. The eclipsing material...
Current Challenges Facing Planet Transit Surveys (2003)
The initial task that confronted extrasolar-planet transit surveys was to monitor enough stars with sufficient photometric precision and complete phase coverage. Numerous searches have been pursued...
HD 209458 and the Power of the Dark Side (2002)
The rich wealth of observational data, and matching theoretical investigations, of the transiting planet of HD209458 stands in sharp contrast to systems for which only the radial velocity orbit is...
A Search for CO Absorption in the Transmission Spectrum of HD 209458b (2002)
Brown, Timothy M., Libbrecht, Kenneth G., Charbonneau, David
We observed one transit of the extrasolar planet HD 209458b with the NIRSPEC spectrograph on the Keck II telescope. Using time series of low-noise observations in the wavelength range 2.0 micron to...
Detection of an Extrasolar Planet Atmosphere (2001)
Charbonneau, David, Brown, Timothy M., Noyes, Robert W., Gilliland, Ronald L.
We report high precision spectrophotometric observations of four planetary transits of HD 209458, in the region of the sodium resonance doublet at 589.3 nm. We find that the photometric dimming...
HST Time-Series Photometry of the Transiting Planet of HD 209458 (2001)
Brown, Timothy M., Charbonneau, David, Gilliland, Ronald L., Noyes, Robert W., Burrows, Adam
We have observed 4 transits of the planet of HD 209458 using the STIS spectrograph on HST. Summing the recorded counts over wavelength between 582 nm and 638 nm yields a photometric time series with...
Multicolor Observations of a Planetary Transit of HD 209458 (2000)
Jha, Saurabh, Charbonneau, David, Garnavich, Peter M., Sullivan, Denis J., Sullivan, Tiri, Brown, Timothy M., ...
We present B, V, R, I and Z-band photometric observations of HD 209458 during the transit by its planetary companion on UT 1999 November 15 with the University of Hawaii 0.6m and 2.2m telescopes and...
The STARE Project: A Transit Search for Hot Jupiters (2000)
Brown, Timothy M., Charbonneau, David
The STARE instrument is a small aperture, wide-field, CCD-based telescope that delivers high cadence time series photometry on roughly 40,000 stars in a typical field centered on the galactic plane....
Present and Near-Future Reflected Light Searches for Close-In Planets (2000)
Charbonneau, David, Noyes, Robert W.
Close-in extrasolar giant planets may be directly detectable by their reflected light, due to the proximity of the planet to the illuminating star. The spectrum of the system will contain a reflected...
Detection of Planetary Transits Across a Sun-like Star (1999)
Charbonneau, David, Brown, Timothy M., Latham, David W., Mayor, Michel
We report high precision, high cadence photometric measurements of the star HD 209458, which is known from radial velocity measurements to have a planetary mass companion in a close orbit. We detect...
An Upper Limit on the Reflected Light from the Planet Orbiting the Star tau Bootis (1999)
Charbonneau, David, Noyes, Robert W., Korzennik, Sylvain G., Nisenson, Peter, Jha, Saurabh, Vogt, Steven S., ...
The planet orbiting tau Boo at a separation of 0.046 AU could produce a reflected light flux as bright as 1e-4 relative to that of the star. A spectrum of the system will contain a reflected light...
Spectral Line Distortions in the Presence of a Close-In Planet (1998)
Charbonneau, David, Jha, Saurabh, Noyes, Robert W.
We discuss the interpretation of distortions to stellar spectral lines with particular attention to line bisectors in the presence of an orbiting planetary companion. We present a simple model...
Structural analysis of DNA complexation with cationic lipids
Marty, Regis, N'soukpoé-Kossi, Christophe N., Charbonneau, David, Weinert, Carl Maximilian, Kreplak, Laurent, Tajmir-Riahi, Heidar-Ali
Complexes of cationic liposomes with DNA are promising tools to deliver genetic information into cells for gene therapy and vaccines. Electrostatic interaction is thought to be the major force in...