Gregorio-Hetem, J.; Lepine, J. R. D.; Quast, G. R.; Torres, C. A. O.; de La Reza, R. A search for T Tauri stars based on the IRAS point source catalog. The Astronomical Journal. 1992, 103: 549. Bibcode:1992AJ....103..549G. doi:10.1086/116082.
Zhou, Yifan; Bowler, Brendan P.; Wagner, Kevin R.; Schneider, Glenn; Apai, Dániel; Kraus, Adam L.; Close, Laird M.; Herczeg, Gregory J.; Fang, Min, Hubble Space Telescope UV and Hα Measurements of the Accretion Excess Emission from the Young Giant Planet PDS 70 B, The Astronomical Journal, 2021, 161 (5): 244, Bibcode:2021AJ....161..244Z, S2CID 233443901, arXiv:2104.13934, doi:10.3847/1538-3881/abeb7a
https://www.nasaspaceflight.com/2021/05/hubble-uv-exoplanet-growth-measured/ (頁面存檔備份,存於互聯網檔案館) ...and that’s lower than super-Jupiter gas giant planet formation models predict. Zhou et al. are quick to caution that their calculations are a snapshot in time. Additional observation, multi-decade, multi-century observations will reveal if accretion rates fluctuate greatly over time as planets go through growth spurts, so to speak, followed by periods of less active formation or if 「Hα production in planetary accretion shocks is more efficient than [previous] models predicted, or [if] we underestimated the accretion luminosity/rate,」 noted Zhou et al. in their paper published in April 2021 issue of The Astronomical Journal. The team further noted, 「By combining our observations with planetary accretion shock models that predict both UV and Hα flux, we can improve the accretion rate measurement and advance our understanding of the accretion mechanisms of gas giant planets.」
Balsalobre-Ruza, O.; de Gregorio-Monsalvo, I.; et al. Tentative co-orbital submillimeter emission within the Lagrangian region L5 of the protoplanet PDS 70 b. Astronomy & Astrophysics. July 2023, 675: A172. doi:10.1051/0004-6361/202346493.