Science

Siding Spring

Excellence in Science

LCO's telescopes around the world, always ready in the dark, drive a unique and powerful engine supporting discoveries in Time Domain Astronomy.

The unique aspect of LCO science is having a global network of telescopes at our disposal. The areas of astronomy most interesting to us are those which take full advantage of this sort of network; targets which appear suddenly and without warning like supernovae and solar system objects and those which need to be observed for long periods in darkness like exoplanets.

LCO Science Groups

Recent Publications

Published Sep 2020
The Astronomical Journal, 2020 160 3
ArXiv: 2001.00954

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

Rodriguez, Joseph E.  et al. Rodriguez, Joseph E., Vanderburg, Andrew, Zieba, Sebastian, Kreidberg, Laura, Morley, Caroline V., Eastman, Jason D., Kane, Stephen R., Spencer, Alton, Quinn, Samuel N., 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,

Published Sep 2020
The Astronomical Journal, 2020 160 3
ArXiv: 2001.00952

The First Habitable Zone Earth-sized Planet from TESS. I: Validation of the TOI-700 System

Gilbert, Emily A.  et al. Gilbert, Emily A., Barclay, Thomas, Schlieder, Joshua E., Quintana, Elisa V., Hord, Benjamin J., Kostov, Veselin B., Lopez, Eric D., Rowe, Jason F., Hoffman, Kelsey, Walkowicz, Lucianne M., Silverstein, Michele L., Rodriguez, Joseph E., Vanderburg, Andrew, Suissa, Gabrielle, Airapetian, Vladimir S., Clement, Matthew S., Raymond, Sean N., Mann, Andrew W., Kruse, Ethan, Lissauer, Jack J., Colón, Knicole D., Kopparapu, Ravi kumar, Kreidberg, Laura, Zieba, Sebastian, Collins, Karen A., Quinn, Samuel N., Howell, Steve B., Ziegler, Carl, Vrijmoet, Eliot Halley, Adams, Fred C., Arney, Giada N., Boyd, Patricia T., Brande, Jonathan, Burke, Christopher J., Cacciapuoti, Luca, Chance, Quadry, Christiansen, Jessie L., Covone, Giovanni, Daylan, Tansu, Dineen, Danielle, Dressing, Courtney D., Essack, Zahra, Fauchez, Thomas J., Galgano, Brianna, Howe, Alex R., Kaltenegger, Lisa, Kane, Stephen R., Lam, Christopher, Lee, Eve J., Lewis, Nikole K., Logsdon, Sarah E., Mandell, Avi M., Monsue, Teresa, Mullally, Fergal, Mullally, Susan E., Paudel, Rishi R., Pidhorodetska, Daria, Plavchan, Peter, Reyes, Naylynn Tañón, Rinehart, Stephen A., Rojas-Ayala, Bárbara, Smith, Jeffrey C., Stassun, Keivan G., Tenenbaum, Peter, Vega, Laura D., Villanueva, Geronimo L., Wolf, Eric T., Youngblood, Allison, Ricker, George R., Vanderspek, Roland K., Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon M., Bakos, Gáspár Å., Briceño, César, Ciardi, David R., Cloutier, Ryan, Conti, Dennis M., Couperus, Andrew, Di Sora, Mario, Eisner, Nora L., Everett, Mark E., Gan, Tianjun, Hartman, Joel D., Henry, Todd, Isopi, Giovanni, Jao, Wei-Chun, Jensen, Eric L. N., Law, Nicholas, Mallia, Franco, Matson, Rachel A., Shappee, Benjamin J., Le Wood, Mackennae, Winters, Jennifer G.,

Published Sep 2020
The Astronomical Journal, 2020 160 3
ArXiv: 2002.03958

HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away

Badenas-Agusti, Mariona  et al. Badenas-Agusti, Mariona, Günther, Maximilian N., Daylan, Tansu, Mikal-Evans, Thomas, Vanderburg, Andrew, Huang, Chelsea X., Matthews, Elisabeth, Rackham, Benjamin V., Bieryla, Allyson, Stassun, Keivan G., Kane, Stephen R., Shporer, Avi, Fulton, Benjamin J., Hill, Michelle L., Nowak, Grzegorz, Ribas, Ignasi, Pallé, Enric, Jenkins, Jon M., Latham, David W., Seager, Sara, Ricker, George R., Vanderspek, Roland K., Winn, Joshua N., Abril-Pla, Oriol, Collins, Karen A., Serra, Pere Guerra, Niraula, Prajwal, Rustamkulov, Zafar, Barclay, Thomas, Crossfield, Ian J. M., Howell, Steve B., Ciardi, David R., Gonzales, Erica J., Schlieder, Joshua E., Caldwell, Douglas A., Fausnaugh, Michael, McDermott, Scott, Paegert, Martin, Pepper, Joshua, Rose, Mark E., Twicken, Joseph D.,

Published Sep 2020
The Astronomical Journal, 2020 160 3

The Multiplanet System TOI-421

Carleo, Ilaria  et al. Carleo, Ilaria, Gandolfi, Davide, Barragán, Oscar, Livingston, John H., Persson, Carina M., Lam, Kristine W. F., Vidotto, Aline, Lund, Michael B., D'Angelo, Carolina Villarreal, Collins, Karen A., Fossati, Luca, Howard, Andrew W., Kubyshkina, Daria, Brahm, Rafael, Oklopčić, Antonija, Mollière, Paul, Redfield, Seth, Serrano, Luisa Maria, Dai, Fei, Fridlund, Malcolm, Borsa, Francesco, Korth, Judith, Esposito, Massimiliano, Díaz, Matías R., Nielsen, Louise Dyregaard, Hellier, Coel, Mathur, Savita, Deeg, Hans J., Hatzes, Artie P., Benatti, Serena, Rodler, Florian, Alarcon, Javier, Spina, Lorenzo, Santos, Ângela R. G., Georgieva, Iskra, García, Rafael A., González-Cuesta, Lucía, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon M., Albrecht, Simon, Batalha, Natalie M., Beard, Corey, Boyd, Patricia T., Bouchy, François, Burt, Jennifer A., Butler, R. Paul, Cabrera, Juan, Chontos, Ashley, Ciardi, David R., Cochran, William D., Collins, Kevin I., Crane, Jeffrey D., Crossfield, Ian, Csizmadia, Szilard, Dragomir, Diana, Dressing, Courtney, Eigmüller, Philipp, Endl, Michael, Erikson, Anders, Espinoza, Nestor, Fausnaugh, Michael, Feng, Fabo, Flowers, Erin, Fulton, Benjamin, Gonzales, Erica J., Grieves, Nolan, Grziwa, Sascha, Guenther, Eike W., Guerrero, Natalia M., Henning, Thomas, Hidalgo, Diego, Hirano, Teruyuki, Hjorth, Maria, Huber, Daniel, Isaacson, Howard, Jones, Matias, Jordán, Andrés, Kabáth, Petr, Kane, Stephen R., Knudstrup, Emil, Lubin, Jack, Luque, Rafael, Mireles, Ismael, Narita, Norio, Nespral, David, Niraula, Prajwal, Nowak, Grzegorz, Palle, Enric, Pätzold, Martin, Petigura, Erik A., Prieto-Arranz, Jorge, Rauer, Heike, Robertson, Paul, Rose, Mark E., Roy, Arpita, Sarkis, Paula, Schlieder, Joshua E., Ségransan, Damien, Shectman, Stephen, Skarka, Marek, Smith, Alexis M. S., Smith, Jeffrey C., Stassun, Keivan, Teske, Johanna, Twicken, Joseph D., Eylen, Vincent Van, Wang, Sharon, Weiss, Lauren M., Wyttenbach, Aurélien,

Published Sep 2020
The Astronomical Journal, 2020 160 3

KELT-25 b and KELT-26 b: A Hot Jupiter and a Substellar Companion Transiting Young A Stars Observed by TESS

Martínez, Romy Rodríguez  et al. Martínez, Romy Rodríguez, Gaudi, B. Scott, Rodriguez, Joseph E., Zhou, George, Labadie-Bartz, Jonathan, Quinn, Samuel N., Penev, Kaloyan, Tan, Thiam-Guan, Latham, David W., Paredes, Leonardo A., Kielkopf, John F., Addison, Brett, Wright, Duncan J., Teske, Johanna, Howell, Steve B., Ciardi, David, Ziegler, Carl, Stassun, Keivan G., Johnson, Marshall C., Eastman, Jason D., Siverd, Robert J., Beatty, Thomas G., Bouma, Luke, Bedding, Timothy, Pepper, Joshua, Winn, Joshua, Lund, Michael B., Villanueva, Steven, Jr., Stevens, Daniel J., Jensen, Eric L. N., Kilby, Coleman, Crane, Jeffrey D., Tokovinin, Andrei, Everett, Mark E., Tinney, C. G., Fausnaugh, Michael, Cohen, David H., Bayliss, Daniel, Bieryla, Allyson, Cargile, Phillip A., Collins, Karen A., Conti, Dennis M., Colón, Knicole D., Curtis, Ivan A., Depoy, D. L., Evans, Phil, Feliz, Dax L., Gregorio, Joao, Rothenberg, Jason, James, David J., Joner, Michael D., Kuhn, Rudolf B., Manner, Mark, Khakpash, Somayeh, Marshall, Jennifer L., McLeod, Kim K., Penny, Matthew T., Reed, Phillip A., Relles, Howard M., Stephens, Denise C., Stockdale, Chris, Trueblood, Mark, Trueblood, Pat, Yao, Xinyu, Zambelli, Roberto, Vanderspek, Roland, Seager, Sara, Jenkins, Jon M., Henry, Todd J., James, Hodari-Sadiki, Jao, Wei-Chun, Wang, Sharon Xuesong, Butler, Paul, Thompson, Ian, Shectman, Stephen, Wittenmyer, Robert, Bowler, Brendan P., Horner, Jonathan, Kane, Stephen R., Mengel, Matthew W., Morton, Timothy D., Okumura, Jack, Plavchan, Peter, Zhang, Hui, Scott, Nicholas J., Matson, Rachel A., Mann, Andrew W., Dragomir, Diana, Günther, Max, Ting, Eric B., Glidden, Ana, Quintana, Elisa V.,