Exoplanets and Stellar Physics

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The Diversity of Planetary Atmospheric Chemistry

Space Science Reviews Springer Nature 217:3 (2021) 43

Authors:

Franklin P Mills, Julianne I Moses, Peter Gao, Shang-Min Tsai
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The β Pictoris b Hill sphere transit campaign

Astronomy & Astrophysics EDP Sciences 648 (2021) a15

Authors:

MA Kenworthy, SN Mellon, JI Bailey, R Stuik, P Dorval, GJJ Talens, SR Crawford, EE Mamajek, I Laginja, M Ireland, B Lomberg, RB Kuhn, I Snellen, K Zwintz, R Kuschnig, GM Kennedy, L Abe, A Agabi, D Mekarnia, T Guillot, F Schmider, P Stee, Y de Pra, M Buttu, N Crouzet, P Kalas, JJ Wang, K Stevenson, E de Mooij, A-M Lagrange, S Lacour, A Lecavelier des Etangs, M Nowak, PA Strøm, Z Hui, L Wang
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A survey of exoplanet phase curves with Ariel

EXPERIMENTAL ASTRONOMY 53:2 (2021) 417-446

Authors:

Benjamin Charnay, Joao M Mendonca, Laura Kreidberg, Nicolas B Cowan, Jake Taylor, Taylor J Bell, Olivier Demangeon, Billy Edwards, Carole A Haswell, Giuseppe Morello, Lorenzo V Mugnai, Enzo Pascale, Giovanna Tinetti, Pascal Tremblin, Robert T Zellem
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First Detection of Hydroxyl Radical Emission from an Exoplanet Atmosphere: High-dispersion Characterization of WASP-33b Using Subaru/IRD

ASTROPHYSICAL JOURNAL LETTERS 910:1 (2021) ARTN L9

Authors:

Stevanus K Nugroho, Hajime Kawahara, Neale P Gibson, Ernst JW de Mooij, Teruyuki Hirano, Takayuki Kotani, Yui Kawashima, Kento Masuda, Matteo Brogi, Jayne L Birkby, Chris A Watson, Motohide Tamura, Konstanze Zwintz, Hiroki Harakawa, Tomoyuki Kudo, Masayuki Kuzuhara, Klaus Hodapp, Masato Ishizuka, Shane Jacobson, Mihoko Konishi, Takashi Kurokawa, Jun Nishikawa, Masashi Omiya, Takuma Serizawa, Akitoshi Ueda, Sebastien Vievard
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TESS re-observes the young multi-planet system TOI-451: refined ephemeris and activity evolution

Research Notes of the American Astronomical Society American Astronomical Society 5:3 (2021) 51

Authors:

Oscar Barragan Villanueva, Suzanne Aigrain, Edward Gillen, Fernando Gutiérrez-Canales

Abstract:

We present a new analysis of the light curve of the young planet-hosting star TOI 451 in the light of new observations from TESS Cycle 3. Our joint analysis of the transits of all three planets, using all available TESS data, results in an improved ephemeris for TOI 451 b and TOI 451 c, which will help to plan follow-up observations. The updated mid-transit times are BJD–2,457,000 = ${1410.9896}_{-0.0029}^{+0.0032}$ , ${1411.7982}_{-0.0020}^{+0.0022}$, and ${1416.63407}_{-0.00100}^{+0.00096}$ for TOI 451 b, c, and d, respectively, and the periods are ${1.8587028}_{-10e-06}^{+08e-06}$, ${9.192453}_{-3.3e-05}^{+4.1e-05}$ , and ${16.364932}_{-3.5e-05}^{+3.6e-05}$ days. We also model the out-of-transit light curve using a Gaussian Process with a quasi-periodic kernel, and infer a change in the properties of the active regions on the surface of TOI 451 between TESS Cycles 1 and 3.
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