Search Results - "Waldmann, I P"

TauREx 3: A Fast, Dynamic, and Extendable Framework for Retrievals by Al-Refaie, A. F., Changeat, Q., Waldmann, I. P., Tinetti, G.

“…Abstract TauREx 3 is the next generation of the TauREx exoplanet atmospheric retrieval framework for Windows, Mac, and Linux. It is a complete rewrite with a…”
Get full text

Toward a More Complex Description of Chemical Profiles in Exoplanet Retrievals: A Two-layer Parameterization by Changeat, Q., Edwards, B., Waldmann, I. P., Tinetti, G.

“…State of the art spectral retrieval models of exoplanet atmospheres assume constant chemical profiles with altitude. This assumption is justified by the…”
Get full text

TAU-REX I: A NEXT GENERATION RETRIEVAL CODE FOR EXOPLANETARY ATMOSPHERES by Waldmann, I. P., Tinetti, G., Rocchetto, M., Barton, E. J., Yurchenko, S. N., Tennyson, J.

“…ABSTRACT Spectroscopy of exoplanetary atmospheres has become a well established method for the characterization of extrasolar planets. We here present a novel…”
Get full text

Impact of Planetary Mass Uncertainties on Exoplanet Atmospheric Retrievals by Changeat, Q., Keyte, L., Waldmann, I. P., Tinetti, G.

“…In current models used to interpret exoplanet atmospheric observations, the planetary mass is treated as a prior and is measured/estimated independently with…”
Get full text

DETECTION OF AN ATMOSPHERE AROUND THE SUPER-EARTH 55 CANCRI E by Tsiaras, A., Rocchetto, M., Waldmann, I. P., Venot, O., Varley, R., Morello, G., Damiano, M., Tinetti, G., Barton, E. J., Yurchenko, S. N., Tennyson, J.

“…ABSTRACT We report the analysis of two new spectroscopic observations in the near-infrared of the super-Earth 55 Cancri e, obtained with the WFC3 camera on…”
Get full text

OF COCKTAIL PARTIES AND EXOPLANETS by WALDMANN, I. P

“…The characterization of ever smaller and fainter extrasolar planets requires an intricate understanding of one's data and the analysis techniques used…”
Get full text

A NEW APPROACH TO ANALYZING HST SPATIAL SCANS: THE TRANSMISSION SPECTRUM OF HD 209458 b by Tsiaras, A., Waldmann, I. P., Rocchetto, M., Varley, R., Morello, G., Damiano, M., Tinetti, G.

“…ABSTRACT The Wide Field Camera 3 on the Hubble Space Telescope is currently one of the most widely used instruments for observing exoplanetary atmospheres,…”
Get full text

EXPLORING BIASES OF ATMOSPHERIC RETRIEVALS IN SIMULATED JWST TRANSMISSION SPECTRA OF HOT JUPITERS by Rocchetto, M., Waldmann, I. P., Venot, O., Lagage, P.-O., Tinetti, G.

“…ABSTRACT With a scheduled launch in 2018 October, the James Webb Space Telescope (JWST) is expected to revolutionize the field of atmospheric characterization…”
Get full text

A Comparison of Chemical Models of Exoplanet Atmospheres Enabled by TauREx 3.1 by Al-Refaie, A. F., Changeat, Q., Venot, O., Waldmann, I. P., Tinetti, G.

“…Abstract Thermochemical equilibrium is one of the most commonly used assumptions in current exoplanet retrievals. As science operations with the James Webb…”
Get full text

Line-profile tomography of exoplanet transits – II. A gas-giant planet transiting a rapidly rotating A5 star by Cameron, A. Collier, Guenther, E., Smalley, B., McDonald, I., Hebb, L., Andersen, J., Augusteijn, Th, Barros, S. C. C., Brown, D. J. A., Cochran, W. D., Endl, M., Fossey, S. J., Hartmann, M., Maxted, P. F. L., Pollacco, D., Skillen, I., Telting, J., Waldmann, I. P., West, R. G.

“…Most of our knowledge of extrasolar planets rests on precise radial-velocity measurements, either for direct detection or for confirmation of the planetary…”
Get full text

Is the Atmosphere of the Ultra-hot Jupiter WASP-121 b Variable? by Changeat, Q., Skinner, J. W., Cho, J. Y-K., Nättilä, J., Waldmann, I. P., Al-Refaie, A. F., Dyrek, A., Edwards, B., Mikal-Evans, T., Joshua, M., Morello, G., Skaf, N., Tsiaras, A., Venot, O., Yip, K. H.

“…Abstract We present a comprehensive analysis of the Hubble Space Telescope observations of the atmosphere of WASP-121 b, an ultra-hot Jupiter. After reducing…”
Get full text

Ground-based Near-infrared Emission Spectroscopy of HD 189733b by Waldmann, I. P, Tinetti, G, Drossart, P, Swain, M. R, Deroo, P, Griffith, C. A

“…We investigate the K- and L-band dayside emission of the hot-Jupiter HD 189733b with three nights of secondary eclipse data obtained with the SpeX instrument…”
Get full text

DREAMING OF ATMOSPHERES by Waldmann, I. P.

“…ABSTRACT Here, we introduce the RobERt (Robotic Exoplanet Recognition) algorithm for the classification of exoplanetary emission spectra. Spectral retrieval of…”
Get full text

An Exploration of Model Degeneracies with a Unified Phase Curve Retrieval Analysis: The Light and Dark Sides of WASP-43 b by Changeat, Q., Al-Refaie, A. F., Edwards, B., Waldmann, I. P., Tinetti, G.

“…Abstract The analysis of exoplanetary atmospheres often relies upon the observation of transit or eclipse events. While very powerful, these snapshots provide…”
Get full text

ON SIGNALS FAINT AND SPARSE: THE ACICA ALGORITHM FOR BLIND DE-TRENDING OF EXOPLANETARY TRANSITS WITH LOW SIGNAL-TO-NOISE by Waldmann, I P

“…Independent component analysis (ICA) has recently been shown to be a promising new path in data analysis and de-trending of exoplanetary time series signals…”
Get full text

Five Key Exoplanet Questions Answered via the Analysis of 25 Hot-Jupiter Atmospheres in Eclipse by Changeat, Q., Edwards, B., Al-Refaie, A. F., Tsiaras, A., Skinner, J. W., Cho, J. Y. K., Yip, K. H., Anisman, L., Ikoma, M., Bieger, M. F., Venot, O., Shibata, S., Waldmann, I. P., Tinetti, G.

“…Abstract Population studies of exoplanets are key to unlocking their statistical properties. So far, the inferred properties have been mostly limited to…”
Get full text

REPEATABILITY OF SPITZER/IRAC EXOPLANETARY ECLIPSES WITH INDEPENDENT COMPONENT ANALYSIS by Morello, G., Waldmann, I. P., Tinetti, G.

“…ABSTRACT The research of effective and reliable detrending methods for Spitzer data is of paramount importance for the characterization of exoplanetary…”
Get full text

REVISITING SPITZER TRANSIT OBSERVATIONS WITH INDEPENDENT COMPONENT ANALYSIS: NEW RESULTS FOR THE GJ 436 SYSTEM by Morello, G., Waldmann, I. P., Tinetti, G., Howarth, I. D., Micela, G., Allard, F.

“…ABSTRACT We analyzed four Spitzer/IRAC observations at 3.6 and 4.5 m of the primary transit of the exoplanet GJ 436b, by using blind source separation…”
Get full text

A NEW LOOK AT SPITZER PRIMARY TRANSIT OBSERVATIONS OF THE EXOPLANET HD 189733b by Morello, G, Waldmann, I P, Tinetti, G, Peres, G, MICELA, G, Howarth, I D

“…Blind source separation techniques are used to reanalyze two exoplanetary transit light curves of the exoplanet HD 189733b recorded with the IR camera IRAC on…”
Get full text

Identifiable Acetylene Features Predicted for Young Earth-like Exoplanets with Reducing Atmospheres Undergoing Heavy Bombardment by Rimmer, P. B., Ferus, M., Waldmann, I. P., Kní ek, A., Kalvaitis, D., Ivanek, O., Kubelík, P., Yurchenko, S. N., Burian, T., Dostál, J., Juha, L., Dud ák, R., Krůs, M., Tennyson, J., Civiš, S., Archibald, A. T., Granville-Willett, A.

“…The chemical environments of young planets are assumed to be largely influenced by the impacts of bodies lingering on unstable trajectories after the…”
Get full text