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Full-Text Articles in Physical Sciences and Mathematics

The Emission Spectrum Of The Hot Jupiter Wasp-79b From Hst/Wfc3, Trevor O. Foote, Nikole K. Lewis, Brian M. Kilpatrick, Jayesh M. Goyal, Giovanni Bruno, Hannah R. Wakeford, Nina Robbins-Blanch, Tiffany Kataria, Ryan J. Macdonald, Mercedes López-Morales, David K. Sing, Thomas Mikal-Evans, Vincent Bourrier, Gregory Henry, Lars A. Buchhave Dec 2021

The Emission Spectrum Of The Hot Jupiter Wasp-79b From Hst/Wfc3, Trevor O. Foote, Nikole K. Lewis, Brian M. Kilpatrick, Jayesh M. Goyal, Giovanni Bruno, Hannah R. Wakeford, Nina Robbins-Blanch, Tiffany Kataria, Ryan J. Macdonald, Mercedes López-Morales, David K. Sing, Thomas Mikal-Evans, Vincent Bourrier, Gregory Henry, Lars A. Buchhave

Information Systems and Engineering Management Research Publications

Here we present a thermal emission spectrum of WASP-79b, obtained via Hubble Space Telescope Wide Field Camera 3 G141 observations as part of the PanCET program. As we did not observe the ingress or egress of WASP-79b's secondary eclipse, we consider two scenarios: a fixed mid-eclipse time based on the expected occurrence time, and a mid-eclipse time as a free parameter. In both scenarios, we can measure thermal emission from WASP-79b from 1.1 to 1.7 μm at 2.4σ confidence consistent with a 1900 K brightness temperature for the planet. We combine our observations with Spitzer dayside photometry (3.6 and 4.5 …


Hst Pancet Program: A Complete Near-Uv To Infrared Transmission Spectrum For The Hot Jupiter Wasp-79b, Alexander D. Rathcke, Ryan J. Macdonald, Joanna K. Barstow, Jayesh M. Goyal, Mercedes Lopez-Morales, João M. Mendonça, Jorge Sanz-Forcada, Gregory W. Henry, David K. Sing, Munazza K. Alam, Nikole K. Lewis, Katy L. Chubb, Jake Taylor, Nikolay Nikolov, Lars A. Buchhave Sep 2021

Hst Pancet Program: A Complete Near-Uv To Infrared Transmission Spectrum For The Hot Jupiter Wasp-79b, Alexander D. Rathcke, Ryan J. Macdonald, Joanna K. Barstow, Jayesh M. Goyal, Mercedes Lopez-Morales, João M. Mendonça, Jorge Sanz-Forcada, Gregory W. Henry, David K. Sing, Munazza K. Alam, Nikole K. Lewis, Katy L. Chubb, Jake Taylor, Nikolay Nikolov, Lars A. Buchhave

Information Systems and Engineering Management Research Publications

We present a new optical transmission spectrum of the hot Jupiter WASP-79b. We observed three transits with the STIS instrument mounted on the Hubble Space Telescope (HST), spanning 0.3–1.0 μm. Combining these transits with previous observations, we construct a complete 0.3–5.0 μm transmission spectrum of WASP-79b. Both HST and ground-based observations show decreasing transit depths toward blue wavelengths, contrary to expectations from Rayleigh scattering or hazes. We infer atmospheric and stellar properties from the full near-UV to infrared transmission spectrum of WASP-79b using three independent retrieval codes, all of which yield consistent results. Our retrievals confirm previous detections of H2O …


Toi-954 B And K2-329 B: Short-Period Saturn-Mass Planets That Test Whether Irradiation Leads To Inflation, L. Sha, C. X. Huang, A. Shporer, J. E. Rodriguez, A. Vanderburg, R. Brahm, J. Hagelberg, E. C. Matthews, C. Ziegler, J. H. Livingston, K. G. Stassun, D. J. Wright, J. D. Crane, N. Espinoza, F. Bouchy, G. Á. Bakos, K. A. Collins, G. Zhou, A. Bieryla, J. D. Hartman, R. A. Wittenmyer, L. D. Nielsen, P. Plavchan, D. Bayliss, P. Sarkis, T.-G. Tan, R. Cloutier, L. Mancini, A. Jordán, S. Wang, T. Henning, N. Narita, K. Penev, J. K. Teske, S. R. Kane, A. W. Mann, B. C. Addison, M. Tamura, J. Horner, M. Barbieri, J. A. Burt, M. R. Díaz, I. J. M. Crossfield, D. Dragomir, H. Drass, A. D. Feinstein, H. Zhang, R. Hart, J. F. Kielkopf, Eric L.N. Jensen, B. T. Montet, G. Ottoni, R. P. Schwarz, F. Rojas, D. Nespral, P. Torres, M. W. Mengel, S. Udry, A. Zapata, E. Snoddy, J. Okumura, G. R. Ricker, R. K. Vanderspek, D. W. Latham, J. N. Winn, S. Seager, J. M. Jenkins, K. D. Colón, C. E. Henze, A. Krishnamurthy, E. B. Ting, M. Vezie, S. Villanueva Feb 2021

Toi-954 B And K2-329 B: Short-Period Saturn-Mass Planets That Test Whether Irradiation Leads To Inflation, L. Sha, C. X. Huang, A. Shporer, J. E. Rodriguez, A. Vanderburg, R. Brahm, J. Hagelberg, E. C. Matthews, C. Ziegler, J. H. Livingston, K. G. Stassun, D. J. Wright, J. D. Crane, N. Espinoza, F. Bouchy, G. Á. Bakos, K. A. Collins, G. Zhou, A. Bieryla, J. D. Hartman, R. A. Wittenmyer, L. D. Nielsen, P. Plavchan, D. Bayliss, P. Sarkis, T.-G. Tan, R. Cloutier, L. Mancini, A. Jordán, S. Wang, T. Henning, N. Narita, K. Penev, J. K. Teske, S. R. Kane, A. W. Mann, B. C. Addison, M. Tamura, J. Horner, M. Barbieri, J. A. Burt, M. R. Díaz, I. J. M. Crossfield, D. Dragomir, H. Drass, A. D. Feinstein, H. Zhang, R. Hart, J. F. Kielkopf, Eric L.N. Jensen, B. T. Montet, G. Ottoni, R. P. Schwarz, F. Rojas, D. Nespral, P. Torres, M. W. Mengel, S. Udry, A. Zapata, E. Snoddy, J. Okumura, G. R. Ricker, R. K. Vanderspek, D. W. Latham, J. N. Winn, S. Seager, J. M. Jenkins, K. D. Colón, C. E. Henze, A. Krishnamurthy, E. B. Ting, M. Vezie, S. Villanueva

Physics & Astronomy Faculty Works

We report the discovery of two short-period Saturn-mass planets, one transiting the G subgiant TOI-954 (TIC 44792534, V = 10.343, T = 9.78) observed in TESS sectors 4 and 5 and one transiting the G dwarf K2-329 (EPIC 246193072, V = 12.70, K = 10.67) observed in K2 campaigns 12 and 19. We confirm and characterize these two planets with a variety of ground-based archival and follow-up observations, including photometry, reconnaissance spectroscopy, precise radial velocity, and high-resolution imaging. Combining all available data, we find that TOI-954 b has a radius of ${0.852}_{-0.062}^{+0.053}\,{R}_{{\rm{J}}}$and a mass of ${0.174}_{-0.017}^{+0.018}$MJ and is in a …