NGTS-30b/TOI-4862b: An ∼1 Gyr old 98-day transiting warm Jupiter

Battley, M. P.; Collins, K. A.; Ulmer-Moll, S.; Quinn, S. N.; Lendl, M.; Gill, S.; Brahm, R.; Hobson, M. J.; Osborn, H. P.; Deline, A.; Faria, J. P.; Claringbold, A. B.; Chakraborty, H.; Stassun, K. G.; Hellier, C.; Alves, D. R.; Ziegler, C.; Anderson, D. R.; Apergis, I.; Armstrong, D. J.; Bayliss, D.; Beletsky, Y.; Bieryla, A.; Bouchy, F.; Burleigh, M. R.; Butler, R. P.; Casewell, S. L.; Christiansen, J. L.; Crane, J. D.; Dalba, P. A.; Daylan, T.; Figueira, P.; Gillen, E.; Goad, M. R.; Guenther, M. N.; Henderson, B. A.; Henning, T.; Jenkins, J. S.; Jordan, A.; Kanodia, S.; Kendall, A.; Kunimoto, M.; Latham, D. W.; Levine, A. M.; Mccormac, J.; Moyano, M.; Osborn, A.; Osip, D.; Pritchard, T. A.; Psaridi, A.; Rice, M.; Rodriguez, J. E.; Saha, S.; Seager, S.; Shectman, S. A.; Smith, A. M. S.; Teske, J. K.; Ting, E. B.; Udry, S.; Vines, J. I.; Watson, C. A.; West, R. G.; Wheatley, P. J.; Winn, J. N.; Yee, S. W.; Zhao, Y.
2024
ASTRONOMY & ASTROPHYSICS
DOI
10.1051/0004-6361/202449307
Context. Long-period transiting exoplanets bridge the gap between the bulk of transit- and Doppler-based exoplanet discoveries, providing key insights into the formation and evolution of planetary systems. The wider separation between these planets and their host stars results in the exoplanets typically experiencing less radiation from their host stars; hence, they should maintain more of their original atmospheres, which can be probed during transit via transmission spectroscopy. Although the known population of long-period transiting exoplanets is relatively sparse, surveys performed by the Transiting Exoplanet Survey Satellite (TESS) and the Next Generation Transit Survey (NGTS) are now discovering new exoplanets to fill in this crucial region of the exoplanetary parameter space.