Stars
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Two warm Earth-sized exoplanets and an Earth-sized candidate in the M5V-M6V binary system TOI-2267
Zúniga-Fernández, Sebastian., Pozuelos, Francisco J., Devora-Pajares, Martín., Cuello, Nicolas., Greklek-McKeon, Michael., Stassun, Keivan Guadalupe., van Grootel, Valérie., Rojas-Ayala, Bárbara., Korth, Judith., Günther, Maximilian N., Burgasser, Adam J., Hsu, Chihchun., Rackham, Benjamin V., Barkaoui, Khalid., Timmermans, Mathilde., Cadieux, Charles., Alonso, Roi., Strakhov, Ivan A., Howell, Steve B., Littlefield, Colin.,… Read MoreNov. 23, 2025
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A Galactic Interloper: A Study of the Camelopardis OB1 Association’s Clusters and Its Visitor from the Perseus Arm
Mullen, Joseph P.; Mast, Amanda; Kounkel, Marina A.; Stassun, Keivan Guadalupe; Roman-Lopes, Alexandre; Tan, Jonathan C. (2025). A Galactic Interloper: A Study of the Camelopardis OB1 Association’s Clusters and Its Visitor from the Perseus Arm. Astrophysical Journal, 992(1), 17. https://doi.org/10.3847/1538-4357/adfb7a Within the Camelopardalis OB1… Read MoreOct. 23, 2025
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Discovery of the pre-main-sequence eclipsing binary MML 48
Gómez Maqueo Chew, Yadira Gómez Maqueo; Hebb, Leslie; Stempels, Henricus C.; Walter, Frederick M.; James, David J.; Feiden, Gregory A.; Petrucci, Romina P.; Lister, Tim A.; Baraffe, Isabelle; Brodheim, Max N.; Faedi, Francesca; Anderson, David R.; Street, Rachel A.; Hellier, Coel; Stassun, Keivan Guadalupe. (2025). Discovery of… Read MoreOct. 23, 2025
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FUMES. IV. Optical and Far-ultraviolet Spectra of a Flare on the M Dwarf GJ 4334
Duvvuri, Girish M.; Pineda, John Sebastian; Garciá Soto, Aylin; Berta-Thompson, Zachory K.; Youngblood, Allison A.; France, Kevin C.; Newton, Elisabeth R.; Stassun, Keivan Guadalupe. (2025). FUMES. IV. Optical and Far-ultraviolet Spectra of a Flare on the M Dwarf GJ 4334. Astronomical Journal, 170(4), 249. https://doi.org/10.3847/1538-3881/adff74… Read MoreOct. 23, 2025
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Atmospheric parameters and chemical abundances of young stars with APOGEE – I. Orion star-forming region
López-Valdivia, Ricardo; Adame, Lucía; Román-Zúñiga, Carlos G.; Hernández, Jesus V.; Śanchez, Edilberto; Herrnández-Aburto, Itzarel; Fernández-Trincado, José G.; Zagala Lagunas, Eduardo; Carigi, Leticia; Méndez-Delgado, José Eduardo; Kounkel, Marina A.; Serna, Javier M.; Lane, Richard R.; Stassun, Keivan Guadalupe; Villanova, Sandro; Kim, Jinyoung Serena; Wolk, Scott J.; Stringfellow, Guy S.;… Read MoreOct. 23, 2025
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Three hot Jupiters transiting K-dwarfs with significant heavy element masses
Frensch, Yolanda G.C., Bouchy, François, Lo Curto, Gaspare, Ulmer-Moll, Solene, Sousa, Sérgio G., Santos, Nuno C., Stassun, Keivan Guadalupe, Watkins, Cristilyn N., Chakraborty, Hritam, & Barkaoui, Khalid. (2025). Three hot Jupiters transiting K-dwarfs with significant heavy element masses. Astronomy and Astrophysics, 700, A118. https://doi.org/10.1051/0004-6361/202553879… Read MoreSep. 26, 2025
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A new brown dwarf orbiting an M star and an investigation of the eccentricity distribution of transiting long-period brown dwarfs
Gan, Tianjun, Cadieux, Charles, Ida, Shigeru, Wang, Sharon Xuesong, Mao, Shude, Lin, Zitao, Stassun, Keivan Guadalupe, Burgasser, Adam J., Howell, Steve B., & Clark, Catherine A. (2025). “A new brown dwarf orbiting an M star and an investigation of the eccentricity distribution of transiting long-period brown dwarfs.”… Read MoreAug. 25, 2025
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HD 35843: A Sun-like star hosting a long-period sub-Neptune and inner super-Earth
Hesse, Katharine M., Mireles, Ismael, Bouchy, François, Dragomir, Diana, Ulmer-Moll, Solene, Eisner, Nora L., Stassun, Keivan Guadalupe, Quinn, Samuel N., Osborn, Hugh P., & Sousa, Sérgio G. (2025). “HD 35843: A Sun-like star hosting a long-period sub-Neptune and inner super-Earth.” Astronomical Journal, 170(2), 108. https://doi.org/10.3847/1538-3881/add7d7… Read MoreAug. 25, 2025
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A large catalog of DA white dwarf characteristics using SDSS and Gaia observations
Crumpler, Nicole R., Chandra, Vedant, Zakamska, Nadia L., Pallathadka, Gautham Adamane, Arseneau, Stefan, Gentile-Fusillo, Nicola Pietro, Hermes, James J., Badenes, Carles, Chakraborty, Priyanka, & Gänsicke, Boris T. (2025). “A large catalog of DA white dwarf characteristics using SDSS and Gaia observations.” Astrophysical Journal, 989(1), 24. https://doi.org/10.3847/1538-4357/ade9a9… Read MoreAug. 20, 2025
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Giant Outer Transiting Exoplanet Mass (GOT ‘EM) Survey. VI. Confirmation of a Long-period Giant Planet Discovered with a Single TESS Transit
Essack, Zahra, Dragomir, Diana, Dalba, Paul A., Battley, Matthew P., Ciardi, David R., Collins, Karen A., Howell, Steve B., Jones, Matias I., Kane, Stephen R., Mamajek, Eric E., Mann, Christopher R., Mireles, Ismael, Oddo, Dominic, Sgro, Lauren A., Stassun, Keivan G., Ulmer-Moll, Solene, Watkins, Cristilyn N., Yee, Samuel… Read MoreJul. 28, 2025