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2. 3.6 AND 4.5 μm SPITZER PHASE CURVES OF THE HIGHLY IRRADIATED HOT JUPITERS WASP-19b AND HAT-P-7b

Author

Wong, Ian, Knutson, Heather A, Kataria, Tiffany, Lewis, Nikole K, Burrows, Adam, Fortney, Jonathan J, Schwartz, Joel, Shporer, Avi, Agol, Eric, Cowan, Nicolas B, Deming, Drake, Désert, Jean-Michel, Fulton, Benjamin J, Howard, Andrew W, Langton, Jonathan, Laughlin, Gregory, Showman, Adam P, and Todorov, Kamen

Subjects
planetary systems, stars: individual, techniques: photometric, astro-ph.EP, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract

We analyze full-orbit phase curve observations of the transiting hot JupitersWASP-19b and HAT-P-7b at 3.6 and 4.5 $\mu$m obtained using the Spitzer SpaceTelescope. For WASP-19b, we measure secondary eclipse depths of $0.485\%\pm0.024\%$ and $0.584\%\pm 0.029\%$ at 3.6 and 4.5 $\mu$m, which are consistentwith a single blackbody with effective temperature $2372 \pm 60$ K. Themeasured 3.6 and 4.5 $\mu$m secondary eclipse depths for HAT-P-7b are$0.156\%\pm 0.009\%$ and $0.190\%\pm 0.006\%$, which are well-described by asingle blackbody with effective temperature $2667\pm 57$ K. Comparing the phasecurves to the predictions of one-dimensional and three-dimensional atmosphericmodels, we find that WASP-19b's dayside emission is consistent with a modelatmosphere with no dayside thermal inversion and moderately efficient day-nightcirculation. We also detect an eastward-shifted hotspot, suggesting thepresence of a superrotating equatorial jet. In contrast, HAT-P-7b's daysideemission suggests a dayside thermal inversion and relatively inefficientday-night circulation; no hotspot shift is detected. For both planets, thesesame models do not agree with the measured nightside emission. Thediscrepancies in the model-data comparisons for WASP-19b might be explained byhigh-altitude silicate clouds on the nightside and/or high atmosphericmetallicity, while the very low 3.6 $\mu$m nightside planetary brightness forHAT-P-7b may be indicative of an enhanced global C/O ratio. We compute Bondalbedos of 0 ($

Published
2016

3. Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 during JWST Transit Spectroscopy Observations

Author

Howard, Ward S., primary, Kowalski, Adam F., additional, Flagg, Laura, additional, MacGregor, Meredith A., additional, Lim, Olivia, additional, Radica, Michael, additional, Piaulet, Caroline, additional, Roy, Pierre-Alexis, additional, Lafrenière, David, additional, Benneke, Björn, additional, Brown, Alexander, additional, Espinoza, Néstor, additional, Doyon, René, additional, Coulombe, Louis-Philippe, additional, Johnstone, Doug, additional, Cowan, Nicolas B., additional, Jayawardhana, Ray, additional, Turner, Jake D., additional, and Dang, Lisa, additional

Published
2023
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4. 3.6 AND 4.5 μm PHASE CURVES OF THE HIGHLY IRRADIATED ECCENTRIC HOT JUPITER WASP-14b

Author

Wong, Ian, Knutson, Heather A, Lewis, Nikole K, Kataria, Tiffany, Burrows, Adam, Fortney, Jonathan J, Schwartz, Joel, Agol, Eric, Cowan, Nicolas B, Deming, Drake, Désert, Jean-Michel, Fulton, Benjamin J, Howard, Andrew W, Langton, Jonathan, Laughlin, Gregory, Showman, Adam P, and Todorov, Kamen

Subjects
binaries: eclipsing, planetary systems, stars: individual, techniques: photometric, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract

We present full-orbit phase curve observations of the eccentric (e ∼ 0.08) transiting hot Jupiter WASP-14b obtained in the 3.6 and 4.5 μm bands using the Spitzer Space Telescope. We use two different methods for removing the intrapixel sensitivity effect and compare their efficacy in decoupling the instrumental noise. Our measured secondary eclipse depths of 0.1882% ± 0.0048% and 0.2247% ± 0.0086% at 3.6 and 4.5 μm, respectively, are both consistent with a blackbody temperature of 2402 ± 35 K. We place a 2σ upper limit on the nightside flux at 3.6 μm and find it to be 9% ± 1% of the dayside flux, corresponding to a brightness temperature of 1079 K. At 4.5 μm, the minimum planet flux is 30% ± 5% of the maximum flux, corresponding to a brightness temperature of 1380 ± 65 K. We compare our measured phase curves to the predictions of one-dimensional radiative transfer and three-dimensional general circulation models. We find that WASP-14b's measured dayside emission is consistent with a model atmosphere with equilibrium chemistry and a moderate temperature inversion. These same models tend to overpredict the nightside emission at 3.6 μm, while underpredicting the nightside emission at 4.5 μm. We propose that this discrepancy might be explained by an enhanced global C/O ratio. In addition, we find that the phase curves of WASP-14b (7.8 MJup) are consistent with a much lower albedo than those of other Jovian mass planets with thermal phase curve measurements, suggesting that it may be emitting detectable heat from the deep atmosphere or interior processes.

Published
2015

5. SPITZER SECONDARY ECLIPSE OBSERVATIONS OF FIVE COOL GAS GIANT PLANETS AND EMPIRICAL TRENDS IN COOL PLANET EMISSION SPECTRA

Author

Kammer, Joshua A, Knutson, Heather A, Line, Michael R, Fortney, Jonathan J, Deming, Drake, Burrows, Adam, Cowan, Nicolas B, Triaud, Amaury HMJ, Agol, Eric, Desert, Jean-Michel, Fulton, Benjamin J, Howard, Andrew W, Laughlin, Gregory P, Lewis, Nikole K, Morley, Caroline V, Moses, Julianne I, Showman, Adam P, and Todorov, Kamen O

Subjects
eclipses, planetary systems, techniques: photometric, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract

In this work we present Spitzer 3.6 and 4.5 μm secondary eclipse observations of five new cool ( K) transiting gas giant planets: HAT-P-19b, WASP-6b, WASP-10b, WASP-39b, and WASP-67b. We compare our measured eclipse depths to the predictions of a suite of atmosphere models and to eclipse depths for planets with previously published observations in order to constrain the temperature- and mass-dependent properties of gas giant planet atmospheres. We find that the dayside emission spectra of planets less massive than Jupiter require models with efficient circulation of energy to the night side and/or increased albedos, while those with masses greater than that of Jupiter are consistently best-matched by models with inefficient circulation and low albedos. At these relatively low temperatures we expect the atmospheric CH4/CO ratio to vary as a function of metallicity, and we therefore use our observations of these planets to constrain their atmospheric metallicities. We find that the most massive planets have dayside emission spectra that are best-matched by solar metallicity atmosphere models, but we are not able to place strong constraints on metallicities of the smaller planets in our sample. Interestingly, we find that the ratio of the 3.6 and 4.5 μm brightness temperatures for these cool transiting planets is independent of planet temperature, and instead exhibits a tentative correlation with planet mass. If this trend can be confirmed, it would suggest that the shape of these planets' emission spectra depends primarily on their masses, consistent with the hypothesis that lower-mass planets are more likely to have metal-rich atmospheres.

Published
2015

6. CONSTRAINTS ON THE ATMOSPHERIC CIRCULATION AND VARIABILITY OF THE ECCENTRIC HOT JUPITER XO-3b

Author

Wong, Ian, Knutson, Heather A, Cowan, Nicolas B, Lewis, Nikole K, Agol, Eric, Burrows, Adam, Deming, Drake, Fortney, Jonathan J, Fulton, Benjamin J, Langton, Jonathan, Laughlin, Gregory, and Showman, Adam P

Subjects
binaries: eclipsing, planetary systems, stars: individual, techniques: photometric, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract

We report secondary eclipse photometry of the hot Jupiter XO-3b in the 4.5 μm band taken with the Infrared Array Camera on the Spitzer Space Telescope. We measure individual eclipse depths and center of eclipse times for a total of 12 secondary eclipses. We fit these data simultaneously with two transits observed in the same band in order to obtain a global best-fit secondary eclipse depth of 0.1580% ± 0.0036% and a center of eclipse phase of 0.67004 ± 0.00013. We assess the relative magnitude of variations in the dayside brightness of the planet by measuring the size of the residuals during ingress and egress from fitting the combined eclipse light curve with a uniform disk model and place an upper limit of 0.05%. The new secondary eclipse observations extend the total baseline from one and a half years to nearly three years, allowing us to place an upper limit on the periastron precession rate of 2.9 × 10-3 deg day-1 - the tightest constraint to date on the periastron precession rate of a hot Jupiter. We use the new transit observations to calculate improved estimates for the system properties, including an updated orbital ephemeris. We also use the large number of secondary eclipses to obtain the most stringent limits to date on the orbit-to-orbit variability of an eccentric hot Jupiter and demonstrate the consistency of multiple-epoch Spitzer observations.

Published
2014

7. THE 4.5 μm FULL-ORBIT PHASE CURVE OF THE HOT JUPITER HD 209458b

Author

Zellem, Robert T, Lewis, Nikole K, Knutson, Heather A, Griffith, Caitlin A, Showman, Adam P, Fortney, Jonathan J, Cowan, Nicolas B, Agol, Eric, Burrows, Adam, Charbonneau, David, Deming, Drake, Laughlin, Gregory, and Langton, Jonathan

Subjects
atmospheric effects, methods: numerical, planets and satellites: general, planets and satellites: individual, techniques: photometric, astro-ph.EP, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract

The hot Jupiter HD 209458b is particularly amenable to detailed study as it is among the brightest transiting exoplanet systems currently known (V-mag = 7.65; K-mag = 6.308) and has a large planet-to-star contrast ratio. HD 209458b is predicted to be in synchronous rotation about its host star with a hot spot that is shifted eastward of the substellar point by superrotating equatorial winds. Here we present the first full-orbit observations of HD 209458b, in which its 4.5 μm emission was recorded with Spitzer/IRAC. Our study revises the previous 4.5 μm measurement of HD 209458b's secondary eclipse emission downward by 35% to , changing our interpretation of the properties of its dayside atmosphere. We find that the hot spot on the planet's dayside is shifted eastward of the substellar point by 40.°9 ± 6.°0, in agreement with circulation models predicting equatorial superrotation. HD 209458b's dayside (T bright = 1499 ± 15 K) and nightside (T bright = 972 ± 44 K) emission indicate a day-to-night brightness temperature contrast smaller than that observed for more highly irradiated exoplanets, suggesting that the day-to-night temperature contrast may be partially a function of the incident stellar radiation. The observed phase curve shape deviates modestly from global circulation model predictions potentially due to disequilibrium chemistry or deficiencies in the current hot CH4 line lists used in these models. Observations of the phase curve at additional wavelengths are needed in order to determine the possible presence and spatial extent of a dayside temperature inversion, as well as to improve our overall understanding of this planet's atmospheric circulation. © 2014. The American Astronomical Society. All rights reserved..

Published
2014

8. ROTATIONAL VARIABILITY OF EARTH'S POLAR REGIONS: IMPLICATIONS FOR DETECTING SNOWBALL PLANETS

Author

Cowan, Nicolas B, Robinson, Tyler, Livengood, Timothy A, Deming, Drake, Agol, Eric, A'Hearn, Michael F, Charbonneau, David, Lisse, Carey M, Meadows, Victoria S, Seager, Sara, Shields, Aomawa L, and Wellnitz, Dennis D

Subjects
methods: analytical, methods: numerical, methods: observational, planets and satellites: individual, techniques: photometric, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract

We have obtained the first time-resolved, disk-integrated observations of Earth's poles with the Deep Impact spacecraft as part of the EPOXI mission of opportunity. These data mimic what we will see when we point next-generation space telescopes at nearby exoplanets. We use principal component analysis (PCA) and rotational light curve inversion to characterize color inhomogeneities and map their spatial distribution from these unusual vantage points, as a complement to the equatorial views presented by Cowan etal. in 2009. We also perform the samePCA on a suite of simulated rotational multi-band light curves from NASA's Virtual Planetary Laboratory three-dimensional spectral Earth model. This numerical experiment allows us to understand what sorts of surface featuresPCA can robustly identify. We find that the EPOXI polar observations have similar broadband colors as the equatorial Earth, but with 20%-30% greater apparent albedo. This is because the polar observations are most sensitive to mid-latitudes, which tend to be more cloudy than the equatorial latitudes emphasized by the original EPOXI Earth observations. The cloudiness of the mid-latitudes also manifests itself in the form of increased variability at short wavelengths in the polar observations and as a dominant gray eigencolor in the south polar observation. We construct a simple reflectance model for a snowball Earth. By construction, our model has a higher Bond albedo than the modern Earth; its surface albedo is so high that Rayleigh scattering does not noticeably affect its spectrum. The rotational color variations occur at short wavelengths due to the large contrast between glacier ice and bare land in those wavebands. Thus, we find that both the broadband colors and diurnal color variations of such a planet would be easily distinguishable from the modern-day Earth, regardless of viewing angle. © 2011. The American Astronomical Society. All rights reserved.

Published
2011

12. Phase Curves of Hot Neptune LTT 9779b Suggest a High-metallicity Atmosphere

Author

Crossfield, Ian J. M., primary, Dragomir, Diana, additional, Cowan, Nicolas B., additional, Daylan, Tansu, additional, Wong, Ian, additional, Kataria, Tiffany, additional, Deming, Drake, additional, Kreidberg, Laura, additional, Mikal-Evans, Thomas, additional, Gorjian, Varoujan, additional, Jenkins, James S., additional, Benneke, Björn, additional, Collins, Karen A., additional, Burke, Christopher J., additional, Henze, Christopher E., additional, McDermott, Scott, additional, Mireles, Ismael, additional, Watanabe, David, additional, Wohler, Bill, additional, Ricker, George, additional, Vanderspek, Roland, additional, Seager, Sara, additional, and Jenkins, Jon M., additional

Published
2020
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13. Evidence for H2 Dissociation and Recombination Heat Transport in the Atmosphere of KELT-9b

Author

Mansfield, Megan, primary, Bean, Jacob L., additional, Stevenson, Kevin B., additional, Komacek, Thaddeus D., additional, Bell, Taylor J., additional, Tan, Xianyu, additional, Malik, Matej, additional, Beatty, Thomas G., additional, Wong, Ian, additional, Cowan, Nicolas B., additional, Dang, Lisa, additional, Désert, Jean-Michel, additional, Fortney, Jonathan J., additional, Gaudi, B. Scott, additional, Keating, Dylan, additional, Kempton, Eliza M.-R., additional, Kreidberg, Laura, additional, Line, Michael R., additional, Parmentier, Vivien, additional, Stassun, Keivan G., additional, Swain, Mark R., additional, and Zellem, Robert T., additional

Published
2020
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14. Thermal Phase Variations of WASP-12b: Defying Predictions

Author

Cowan, Nicolas B, Machalek, Pavel, Croll, Bryce, Shekhtman, Louis M, Burrows, Adam, Deming, Drake, Greene, Tom, and Hora, Joseph L

Subjects
Astrophysics
Abstract

We report Warm Spitzer full-orbit phase observations of WASP-12b at 3.6 and 4.5 micrometers. This extremely inflated hot Jupiter is thought to be overflowing its Roche lobe, undergoing mass loss and accretion onto its host star, and has been claimed to have a C/O ratio in excess of unity. We are able to measure the transit depths, eclipse depths, thermal and ellipsoidal phase variations at both wavelengths. The large-amplitude phase variations, combined with the planet's previously measured dayside spectral energy distribution, are indicative of non-zero Bond albedo and very poor day-night heat redistribution. The transit depths in the mid-infrared-(R(sub p)/R(sub ∗))(sup 2) = 0.0123(3) and 0.0111(3) at 3.6 and 4.5 micrometers, respectively-indicate that the atmospheric opacity is greater at 3.6 than at 4.5 micrometers, in disagreement with model predictions, irrespective of C/O ratio. The secondary eclipse depths are consistent with previous studies: F(sub day)/F(sub ∗) = 0.0038(4) and 0.0039(3) at 3.6 and 4.5 micrometers, respectively. We do not detect ellipsoidal variations at 3.6 micrometers, but our parameter uncertainties-estimated via prayer-bead Monte Carlo-keep this non-detection consistent with model predictions. At 4.5 micrometers, on the other hand, we detect ellipsoidal variations that are much stronger than predicted. If interpreted as a geometric effect due to the planet's elongated shape, these variations imply a 3:2 ratio for the planet's longest:shortest axes and a relatively bright day-night terminator. If we instead presume that the 4.5 micrometer ellipsoidal variations are due to uncorrected systematic noise and we fix the amplitude of the variations to zero, the best-fit 4.5 micrometer transit depth becomes commensurate with the 3.6 micrometer depth, within the uncertainties. The relative transit depths are then consistent with a solar composition and short scale height at the terminator. Assuming zero ellipsoidal variations also yields a much deeper 4.5 micrometer eclipse depth, consistent with a solar composition and modest temperature inversion. We suggest future observations that could distinguish between these two scenarios.

Published
2012
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19. The Very Low Albedo of WASP-12b from Spectral Eclipse Observations with Hubble

Author

Bell, Taylor J., primary, Nikolov, Nikolay, additional, Cowan, Nicolas B., additional, Barstow, Joanna K., additional, Barman, Travis S., additional, Crossfield, Ian J. M., additional, Gibson, Neale P., additional, Evans, Thomas M., additional, Sing, David K., additional, Knutson, Heather A., additional, Kataria, Tiffany, additional, Lothringer, Joshua D., additional, Benneke, Björn, additional, and Schwartz, Joel C., additional

Published
2017
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20. Planet-induced Stellar Pulsations in HAT-P-2's Eccentric System

Author

Wit, Julien de, primary, Lewis, Nikole K., additional, Knutson, Heather A., additional, Fuller, Jim, additional, Antoci, Victoria, additional, Fulton, Benjamin J., additional, Laughlin, Gregory, additional, Deming, Drake, additional, Shporer, Avi, additional, Batygin, Konstantin, additional, Cowan, Nicolas B., additional, Agol, Eric, additional, Burrows, Adam S., additional, Fortney, Jonathan J., additional, Langton, Jonathan, additional, and Showman, Adam P., additional

Published
2017
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21. CLOUD ATLAS : DISCOVERY OF PATCHY CLOUDS AND HIGH-AMPLITUDE ROTATIONAL MODULATIONS IN A YOUNG, EXTREMELY RED L-TYPE BROWN DWARF

Author

Lew, Ben W. P., primary, Apai, Daniel, additional, Zhou, Yifan, additional, Schneider, Glenn, additional, Burgasser, Adam J., additional, Karalidi, Theodora, additional, Yang, Hao, additional, Marley, Mark S., additional, Cowan, Nicolas B., additional, Bedin, Luigi R., additional, Metchev, Stanimir A., additional, Radigan, Jacqueline, additional, and Lowrance, Patrick J., additional

Published
2016
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22. 3.6 AND 4.5μmSPITZERPHASE CURVES OF THE HIGHLY IRRADIATED HOT JUPITERS WASP-19b AND HAT-P-7b

Author

Wong, Ian, primary, Knutson, Heather A., additional, Kataria, Tiffany, additional, Lewis, Nikole K., additional, Burrows, Adam, additional, Fortney, Jonathan J., additional, Schwartz, Joel, additional, Shporer, Avi, additional, Agol, Eric, additional, Cowan, Nicolas B., additional, Deming, Drake, additional, Désert, Jean-Michel, additional, Fulton, Benjamin J., additional, Howard, Andrew W., additional, Langton, Jonathan, additional, Laughlin, Gregory, additional, Showman, Adam P., additional, and Todorov, Kamen, additional

Published
2016
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24. 3.6 AND 4.5μm PHASE CURVES OF THE HIGHLY IRRADIATED ECCENTRIC HOT JUPITER WASP-14b

Author

Wong, Ian, primary, Knutson, Heather A., additional, Lewis, Nikole K., additional, Kataria, Tiffany, additional, Burrows, Adam, additional, Fortney, Jonathan J., additional, Schwartz, Joel, additional, Agol, Eric, additional, Cowan, Nicolas B., additional, Deming, Drake, additional, Désert, Jean-Michel, additional, Fulton, Benjamin J., additional, Howard, Andrew W., additional, Langton, Jonathan, additional, Laughlin, Gregory, additional, Showman, Adam P., additional, and Todorov, Kamen, additional

Published
2015
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25. SPITZERSECONDARY ECLIPSE OBSERVATIONS OF FIVE COOL GAS GIANT PLANETS AND EMPIRICAL TRENDS IN COOL PLANET EMISSION SPECTRA

Author

Kammer, Joshua A., primary, Knutson, Heather A., additional, Line, Michael R., additional, Fortney, Jonathan J., additional, Deming, Drake, additional, Burrows, Adam, additional, Cowan, Nicolas B., additional, Triaud, Amaury H. M. J., additional, Agol, Eric, additional, Desert, Jean-Michel, additional, Fulton, Benjamin J., additional, Howard, Andrew W., additional, Laughlin, Gregory P., additional, Lewis, Nikole K., additional, Morley, Caroline V., additional, Moses, Julianne I., additional, Showman, Adam P., additional, and Todorov, Kamen O., additional

Published
2015
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26. ATMOSPHERIC CHARACTERIZATION OF THE HOT JUPITER KEPLER-13Ab

Author

Shporer, Avi, primary, O'Rourke, Joseph G., additional, Knutson, Heather A., additional, Szabó, Gyula M., additional, Zhao, Ming, additional, Burrows, Adam, additional, Fortney, Jonathan, additional, Agol, Eric, additional, Cowan, Nicolas B., additional, Desert, Jean-Michel, additional, Howard, Andrew W., additional, Isaacson, Howard, additional, Lewis, Nikole K., additional, Showman, Adam P., additional, and Todorov, Kamen O., additional

Published
2014
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28. INFERENCE OF INHOMOGENEOUS CLOUDS IN AN EXOPLANET ATMOSPHERE

Author

Demory, Brice-Olivier, primary, de Wit, Julien, additional, Lewis, Nikole, additional, Fortney, Jonathan, additional, Zsom, Andras, additional, Seager, Sara, additional, Knutson, Heather, additional, Heng, Kevin, additional, Madhusudhan, Nikku, additional, Gillon, Michael, additional, Barclay, Thomas, additional, Desert, Jean-Michel, additional, Parmentier, Vivien, additional, and Cowan, Nicolas B., additional

Published
2013
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29. SECONDARY ECLIPSE PHOTOMETRY OF THE EXOPLANET WASP-5b WITH WARMSPITZER

Author

Baskin, Nathaniel J., primary, Knutson, Heather A., additional, Burrows, Adam, additional, Fortney, Jonathan J., additional, Lewis, Nikole K., additional, Agol, Eric, additional, Charbonneau, David, additional, Cowan, Nicolas B., additional, Deming, Drake, additional, Desert, Jean-Michel, additional, Langton, Jonathan, additional, Laughlin, Gregory, additional, and Showman, Adam P., additional

Published
2013
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31. WARMSPITZERPHOTOMETRY OF THREE HOT JUPITERS: HAT-P-3b, HAT-P-4b AND HAT-P-12b

Author

Todorov, Kamen O., primary, Deming, Drake, additional, Knutson, Heather A., additional, Burrows, Adam, additional, Fortney, Jonathan J., additional, Lewis, Nikole K., additional, Cowan, Nicolas B., additional, Agol, Eric, additional, Desert, Jean-Michel, additional, Sada, Pedro V., additional, Charbonneau, David, additional, Laughlin, Gregory, additional, Langton, Jonathan, additional, and Showman, Adam P., additional

Published
2013
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32. ORBITAL PHASE VARIATIONS OF THE ECCENTRIC GIANT PLANET HAT-P-2b

Author

Lewis, Nikole K., primary, Knutson, Heather A., additional, Showman, Adam P., additional, Cowan, Nicolas B., additional, Laughlin, Gregory, additional, Burrows, Adam, additional, Deming, Drake, additional, Crepp, Justin R., additional, Mighell, Kenneth J., additional, Agol, Eric, additional, Bakos, Gáspár Á., additional, Charbonneau, David, additional, Désert, Jean-Michel, additional, Fischer, Debra A., additional, Fortney, Jonathan J., additional, Hartman, Joel D., additional, Hinkley, Sasha, additional, Howard, Andrew W., additional, Johnson, John Asher, additional, Kao, Melodie, additional, Langton, Jonathan, additional, and Marcy, Geoffrey W., additional

Published
2013
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37. 3.6 AND 4.5 μm PHASE CURVES AND EVIDENCE FOR NON-EQUILIBRIUM CHEMISTRY IN THE ATMOSPHERE OF EXTRASOLAR PLANET HD 189733b

Author

Knutson, Heather A., primary, Lewis, Nikole, additional, Fortney, Jonathan J., additional, Burrows, Adam, additional, Showman, Adam P., additional, Cowan, Nicolas B., additional, Agol, Eric, additional, Aigrain, Suzanne, additional, Charbonneau, David, additional, Deming, Drake, additional, Désert, Jean-Michel, additional, Henry, Gregory W., additional, Langton, Jonathan, additional, and Laughlin, Gregory, additional

Published
2012
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41. WARMSPITZEROBSERVATIONS OF THREE HOT EXOPLANETS: XO-4b, HAT-P-6b, AND HAT-P-8b

Author

Todorov, Kamen O., primary, Deming, Drake, additional, Knutson, Heather A., additional, Burrows, Adam, additional, Sada, Pedro V., additional, Cowan, Nicolas B., additional, Agol, Eric, additional, Desert, Jean-Michel, additional, Fortney, Jonathan J., additional, Charbonneau, David, additional, Laughlin, Gregory, additional, Langton, Jonathan, additional, Showman, Adam P., additional, and Lewis, Nikole K., additional

Published
2012
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42. ASPITZERTRANSMISSION SPECTRUM FOR THE EXOPLANET GJ 436b, EVIDENCE FOR STELLAR VARIABILITY, AND CONSTRAINTS ON DAYSIDE FLUX VARIATIONS

Author

Knutson, Heather A., primary, Madhusudhan, Nikku, additional, Cowan, Nicolas B., additional, Christiansen, Jessie L., additional, Agol, Eric, additional, Deming, Drake, additional, Désert, Jean-Michel, additional, Charbonneau, David, additional, Henry, Gregory W., additional, Homeier, Derek, additional, Langton, Jonathan, additional, Laughlin, Gregory, additional, and Seager, Sara, additional

Published
2011
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44. SECONDARY ECLIPSE PHOTOMETRY OF WASP-4b WITH WARMSPITZER

Author

Beerer, Ingrid M., primary, Knutson, Heather A., additional, Burrows, Adam, additional, Fortney, Jonathan J., additional, Agol, Eric, additional, Charbonneau, David, additional, Cowan, Nicolas B., additional, Deming, Drake, additional, Desert, Jean-Michel, additional, Langton, Jonathan, additional, Laughlin, Gregory, additional, Lewis, Nikole K., additional, and Showman, Adam P., additional

Published
2010
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