The First Habitable Zone Earth-Sized Planet From TESS II: Spitzer Confirms TOI-700 d

• Published in: The Astronomical Journal
• Main Authors: Rodriguez, Joseph E., Vanderburg, Andrew, Zieba, Sebastian, Kreidberg, Laura, Morley, Caroline V., Kane, Stephen R., Spencer, Alton, Quinn, Samuel N., Eastman, Jason D., Cloutier, Ryan, Huang, Chelsea X., Collins, Karen A., Mann, Andrew W., Gilbert, Emily, Schlieder, Joshua E., Quintana, Elisa V., Barclay, Thomas, Suissa, Gabrielle, Kopparapu, Ravi kumar, Dressing, Courtney D., Ricker, George R., Vanderspek, Roland K., Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon M., Berta-Thompson, Zachory, Boyd, Patricia T., Charbonneau, David, Caldwell, Douglas A., Chiang, Eugene, Christiansen, Jessie L., Ciardi, David R., Colón, Knicole D., Doty, John, Gan, Tianjun, Guerrero, Natalia, Günther, Maximilian N., Lee, Eve J., Levine, Alan M., Lopez, Eric, Muirhead, Philip S., Newton, Elisabeth, Rose, Mark E., Twicken, Joseph D., Villaseñor, Jesus Noel
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: American Astronomical Society 2020
• Subjects: Exoplanets; Habitable planets; Habitable zone; Low mass stars; Antarctic observatories; Exoplanet astronomy; Exoplanet detection methods; Exoplanet systems; Antarctic; Kavli; Sagan; Antarc*
• Online Access: https://doi.org/10.3847/1538-3881/aba4b3

We present Spitzer 4.5 μm observations of the transit of TOI-700 d, a habitable-zone Earth-sized planet in a multiplanet system transiting a nearby M-dwarf star (TIC 150428135, 2MASS J06282325–6534456). TOI-700 d has a radius of 1.144^(+0.062)_(-0.061) R⊕ and orbits within its host star's...