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A Search for Planetary Metastable Helium Absorption in the V1298 Tau System

Shreyas Vissapragada, Gudmundur Stefánsson, Michael Greklek-McKeon, Antonija Oklopčić, Heather A. Knutson, Joe P. Ninan, Suvrath Mahadevan, Caleb I. Cañas, Yayaati Chachan, William D. Cochran, Karen A. Collins, Fei Dai, Trevor J. David, Samuel Halverson, Suzanne L. Hawley, Leslie Hebb, Shubham Kanodia, Adam F. Kowalski, John H. Livingston, Marissa Maney, Andrew J. Metcalf, Caroline Morley, Lawrence W. Ramsey, Paul Robertson, Arpita Roy, et al.
The Astronomical Journal 162 (5) 222 (2021)
https://doi.org/10.3847/1538-3881/ac1bb0

The Atmospheric Wind of Hot Exoplanets and its Manifestations in Observations: from Energy Estimates to 3D MHD Models

I. F. Shaikhislamov, M. L. Khodachenko and A. G. Berezutskiy
Astronomy Reports 65 (1) 8 (2021)
https://doi.org/10.1134/S1063772921010054

Evidence for He i 10830 Å Absorption during the Transit of a Warm Neptune around the M-dwarf GJ 3470 with the Habitable-zone Planet Finder

Joe P. Ninan, Gudmundur Stefansson, Suvrath Mahadevan, Chad Bender, Paul Robertson, Lawrence Ramsey, Ryan Terrien, Jason Wright, Scott A. Diddams, Shubham Kanodia, William Cochran, Michael Endl, Eric B. Ford, Connor Fredrick, Samuel Halverson, Fred Hearty, Jeff Jennings, Kyle Kaplan, Emily Lubar, Andrew J. Metcalf, Andrew Monson, Colin Nitroy, Arpita Roy and Christian Schwab
The Astrophysical Journal 894 (2) 97 (2020)
https://doi.org/10.3847/1538-4357/ab8559

Detecting Magnetic Fields in Exoplanets with Spectropolarimetry of the Helium Line at 1083 nm

Antonija Oklopčić, Makana Silva, Paulo Montero-Camacho and Christopher M. Hirata
The Astrophysical Journal 890 (1) 88 (2020)
https://doi.org/10.3847/1538-4357/ab67c6

Effects of radiation pressure on the evaporative wind of HD 209458b

Alex Debrecht, Jonathan Carroll-Nellenback, Adam Frank, et al.
Monthly Notices of the Royal Astronomical Society 493 (1) 1292 (2020)
https://doi.org/10.1093/mnras/staa351

Hydrogen Dominated Atmospheres on Terrestrial Mass Planets: Evidence, Origin and Evolution

J. E. Owen, I. F. Shaikhislamov, H. Lammer, L. Fossati and M. L. Khodachenko
Space Science Reviews 216 (8) (2020)
https://doi.org/10.1007/s11214-020-00756-w

Confirmation of WASP-107b’s Extended Helium Atmosphere with Keck II/NIRSPEC

James Kirk, Munazza K. Alam, Mercedes López-Morales and Li Zeng
The Astronomical Journal 159 (3) 115 (2020)
https://doi.org/10.3847/1538-3881/ab6e66

Ca II H&K stellar activity parameter: a proxy for extreme ultraviolet stellar fluxes

A. G. Sreejith, L. Fossati, A. Youngblood, K. France and S. Ambily
Astronomy & Astrophysics 644 A67 (2020)
https://doi.org/10.1051/0004-6361/202039167

Stellar wind effects on the atmospheres of close-in giants: a possible reduction in escape instead of increased erosion

A A Vidotto and A Cleary
Monthly Notices of the Royal Astronomical Society 494 (2) 2417 (2020)
https://doi.org/10.1093/mnras/staa852

Constraints on Metastable Helium in the Atmospheres of WASP-69b and WASP-52b with Ultranarrowband Photometry

Shreyas Vissapragada, Heather A. Knutson, Nemanja Jovanovic, Caleb K. Harada, Antonija Oklopčić, James Eriksen, Dimitri Mawet, Maxwell A. Millar-Blanchaer, Samaporn Tinyanont and Gautam Vasisht
The Astronomical Journal 159 (6) 278 (2020)
https://doi.org/10.3847/1538-3881/ab8e34

A Featureless Infrared Transmission Spectrum for the Super-puff Planet Kepler-79d

Yayaati Chachan, Daniel Jontof-Hutter, Heather A. Knutson, Danica Adams, Peter Gao, Björn Benneke, Zachory Berta-Thompson, Fei Dai, Drake Deming, Eric B. Ford, Eve J. Lee, Jessica E. Libby-Roberts, Nikku Madhusudhan, Hannah R. Wakeford and Ian Wong
The Astronomical Journal 160 (5) 201 (2020)
https://doi.org/10.3847/1538-3881/abb23a

The Magellan/PFS Exoplanet Search: a 55-d period dense Neptune transiting the bright (V = 8.6) star HD 95338

Matías R Díaz, James S Jenkins, Fabo Feng, et al.
Monthly Notices of the Royal Astronomical Society 496 (4) 4330 (2020)
https://doi.org/10.1093/mnras/staa1724

Mass-loss rate and local thermodynamic state of the KELT-9 b thermosphere from the hydrogen Balmer series

A. Wyttenbach, P. Mollière, D. Ehrenreich, et al.
Astronomy & Astrophysics 638 A87 (2020)
https://doi.org/10.1051/0004-6361/201937316