Assessing the C/O Ratio Formation Diagnostic: A Potential Trend with Companion Mass von Hoch, Kielan K. W., Konopacky, Quinn M., Theissen, Christopher A., Ruffio, Jean-Baptiste, Barman, Travis S., Rickman, Emily L., Perrin, Marshall D., Macintosh, Bruce, Marois, Christian

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Deep Exploration of the Planets HR 8799 b, c, and d with Moderate-resolution Spectroscopy von Ruffio, Jean-Baptiste, Konopacky, Quinn M., Barman, Travis, Macintosh, Bruce, Hoch, Kielan K. W., De Rosa, Robert J., Wang, Jason J., Czekala, Ian, Marois, Christian

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High-resolution shape models of Phobos and Deimos from stereophotoclinometry von Ernst, Carolyn M., Daly, R. Terik, Gaskell, Robert W., Barnouin, Olivier S., Nair, Hari, Hyatt, Benjamin A., Al Asad, Manar M., Hoch, Kielan K. W.

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The JWST Early Release Science Program for the Direct Imaging and Spectroscopy of Exoplanetary Systems von Hinkley, Sasha, Carter, Aarynn L., Ray, Shrishmoy, Skemer, Andrew, Biller, Beth, Choquet, Elodie, Millar-Blanchaer, Maxwell A., Sallum, Stephanie, Miles, Brittany, Whiteford, Niall, Patapis, Polychronis, Perrin, Marshall, Pueyo, Laurent, Schneider, Glenn, Stapelfeldt, Karl, Wang, Jason, Ward-Duong, Kimberly, Bowler, Brendan P., Boccaletti, Anthony, H. Girard, Julien, Hines, Dean, Kalas, Paul, Kammerer, Jens, Kervella, Pierre, Leisenring, Jarron, Pantin, Eric, Zhou, Yifan, Meyer, Michael, Liu, Michael C., Bonnefoy, Mickael, Currie, Thayne, McElwain, Michael, Metchev, Stanimir, Wyatt, Mark, Absil, Olivier, Adams, Jea, Barman, Travis, Baraffe, Isabelle, Bonavita, Mariangela, Booth, Mark, Bryan, Marta, Chauvin, Gael, Chen, Christine, Danielski, Camilla, Furio, Matthew De, Factor, Samuel M., Fitzgerald, Michael P., Fortney, Jonathan J., Grady, Carol, Greenbaum, Alexandra, Henning, Thomas, Hoch, Kielan K. W., Janson, Markus, Kennedy, Grant, Kenworthy, Matthew, Kraus, Adam, Kuzuhara, Masayuki, Lagage, Pierre-Olivier, Lagrange, Anne-Marie, Launhardt, Ralf, Lazzoni, Cecilia, Lloyd, James, Marino, Sebastian, Marley, Mark, Martinez, Raquel, Marois, Christian, Matthews, Brenda, Matthews, Elisabeth C., Mawet, Dimitri, Mazoyer, Johan, Phillips, Mark, Petrus, Simon, Quanz, Sascha P., Quirrenbach, Andreas, Rameau, Julien, Rebollido, Isabel, Rickman, Emily, Samland, Matthias, Sargent, B., Schlieder, Joshua E., Sivaramakrishnan, Anand, Stone, Jordan M., Tamura, Motohide, Tremblin, Pascal, Uyama, Taichi, Vasist, Malavika, Vigan, Arthur, Wagner, Kevin, Ygouf, Marie

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Detecting Exoplanets Closer to Stars with Moderate Spectral Resolution Integral-field Spectroscopy von Agrawal, Shubh, Ruffio, Jean-Baptiste, Konopacky, Quinn M., Macintosh, Bruce, Mawet, Dimitri, Nielsen, Eric L., Hoch, Kielan K. W., Liu, Michael C., Barman, Travis S., Thompson, William, Greenbaum, Alexandra Z., Marois, Christian, Patience, Jenny

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Moderate-resolution K-band Spectroscopy of the Substellar Companion VHS 1256 b von Hoch, Kielan K. W., Konopacky, Quinn M., Barman, Travis S., Theissen, Christopher A., Brock, Laci, Perrin, Marshall D., Ruffio, Jean-Baptiste, Macintosh, Bruce, Marois, Christian

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A High-resolution Spectroscopic Survey of Directly Imaged Companion Hosts. I. Determination of Diagnostic Stellar Abundances for Planet Formation and Composition von Baburaj, Aneesh, Konopacky, Quinn M., Theissen, Christopher A., Peacock, Sarah, Huseby, Lori, Fulton, Benjamin J., Gerasimov, Roman, Barman, Travis S., Hoch, Kielan K. W.

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The JWST Early-release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 μm Spectrum of the Planetary-mass Companion VHS 1256–1257 b von Biller, Beth A., Patapis, Polychronis, Worthen, Kadin, Rickman, Emily, Hoch, Kielan K. W., Skemer, Andrew, Perrin, Marshall D., Whiteford, Niall, Chen, Christine H., Mukherjee, Sagnick, Moran, Sarah E., Bonnefoy, Mickael, Petrus, Simon, Carter, Aarynn L., Choquet, Elodie, Hinkley, Sasha, Ward-Duong, Kimberly, Leisenring, Jarron M., Millar-Blanchaer, Maxwell A., Pueyo, Laurent, Ray, Shrishmoy, Sallum, Steph, Stapelfeldt, Karl R., Stone, Jordan M., Wang, Jason J., Balmer, William O., Boccaletti, Anthony, Bonavita, Mariangela, Booth, Mark, Bowler, Brendan P., Chauvin, Gael, Christiaens, Valentin, Danielski, Camilla, Fortney, Jonathan J., Girard, Julien H., Grady, Carol A., Greenbaum, Alexandra Z., Henning, Thomas, Hines, Dean C., Janson, Markus, Kalas, Paul, Kammerer, Jens, Kennedy, Grant M., Kenworthy, Matthew A., Kervella, Pierre, Lagage, Pierre-Olivier, Lew, Ben W. P., Liu, Michael C., Marino, Sebastian, Marley, Mark S., Marois, Christian, Matthews, Elisabeth C., Matthews, Brenda C., Mawet, Dimitri, McElwain, Michael W., Metchev, Stanimir, Meyer, Michael R., Molliere, Paul, Pantin, Eric, Quirrenbach, Andreas, Rebollido, Isabel, Ren, Bin B., Schneider, Glenn, Vasist, Malavika, Zhou, Yifan, Briesemeister, Zackery W., Bryan, Marta L., Cantalloube, Faustine, Cugno, Gabriele, De Furio, Matthew, Dupuy, Trent J., Factor, Samuel M., Faherty, Jacqueline K., Fitzgerald, Michael P., Franson, Kyle, Gonzales, Eileen C., Hood, Callie E., Howe, Alex R., Kuzuhara, Masayuki, Lagrange, Anne-Marie, Lawson, Kellen, Lazzoni, Cecilia, Liu, Pengyu, Llop-Sayson, Jorge, Mazoyer, Johan, Quanz, Sascha P., Redai, Jea Adams, Samland, Matthias, Schlieder, Joshua E., Tamura, Motohide, Tan, Xianyu, Uyama, Taichi, Vigan, Arthur, Vos, Johanna M., Wagner, Kevin, Wolff, Schuyler G., Ygouf, Marie, Zhang, Xi, Zhang, Keming, Zhang, Zhoujian

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The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems I: High-contrast Imaging of the Exoplanet HIP 65426 b from 2 to 16 μm von Carter, Aarynn L., Hinkley, Sasha, Kammerer, Jens, Biller, Beth A., Leisenring, Jarron M., Millar-Blanchaer, Maxwell A., Petrus, Simon, Stone, Jordan M., Ward-Duong, Kimberly, Wang, Jason J., Girard, Julien H., Hines, Dean C., Perrin, Marshall D., Pueyo, Laurent, Balmer, William O., Bonavita, Mariangela, Chauvin, Gael, Choquet, Elodie, Christiaens, Valentin, Danielski, Camilla, Kennedy, Grant M., Matthews, Elisabeth C., Patapis, Polychronis, Ray, Shrishmoy, Rickman, Emily, Sallum, Steph, Stapelfeldt, Karl R., Whiteford, Niall, Zhou, Yifan, Absil, Olivier, Boccaletti, Anthony, Booth, Mark, Bowler, Brendan P., Chen, Christine H., Currie, Thayne, Fortney, Jonathan J., Greebaum, Alexandra Z., Henning, Thomas, Hoch, Kielan K. W., Janson, Markus, Kalas, Paul, Kenworthy, Matthew A., Kervella, Pierre, Kraus, Adam L., Lagage, Pierre-Olivier, Liu, Michael C., Macintosh, Bruce, Marino, Sebastian, Marley, Mark S., Matthews, Brenda C., Mawet, Dimitri, McElwain, Michael W., Metchev, Stanimir, Meyer, Michael R., Moran, Sarah E., Morley, Caroline V., Mukherjee, Sagnick, Pantin, Eric, Rebollido, Isabel, Ren, Bin B., Schneider, Glenn, Vasist, Malavika, Worthen, Kadin, Wyatt, Mark C., Briesemeister, Zackery W., Bryan, Marta L., Calissendorff, Per, Cantalloube, Faustine, Cugno, Gabriele, Dupuy, Trent J., Factor, Samuel M., Faherty, Jacqueline K., Fitzgerald, Michael P., Franson, Kyle, Gonzales, Eileen C., Hood, Callie E., Howe, Alex R., Lagrange, Anne-Marie, Lawson, Kellen, Lazzoni, Cecilia, Lew, Ben W. P., Liu, Pengyu, Lloyd, James P., Martinez, Raquel A., Palma-Bifani, Paulina, Quanz, Sascha P., Redai, Jea Adams, Samland, Matthias, Schlieder, Joshua E., Tamura, Motohide, Tan, Xianyu, Uyama, Taichi, Vigan, Arthur, Vos, Johanna M., Wagner, Kevin, Wolff, Schuyler G., Ygouf, Marie, Zhang, Xi, Zhang, Keming, Zhang, Zhoujian

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JWST-TST DREAMS: Quartz Clouds in the Atmosphere of WASP-17b von Grant, David, Lewis, Nikole K., Wakeford, Hannah R., Batalha, Natasha E., Glidden, Ana, Goyal, Jayesh, Mullens, Elijah, MacDonald, Ryan J., May, Erin M., Seager, Sara, Stevenson, Kevin B., Valenti, Jeff A., Visscher, Channon, Alderson, Lili, Allen, Natalie H., Cañas, Caleb I., Colón, Knicole, Clampin, Mark, Espinoza, Néstor, Gressier, Amélie, Huang, Jingcheng, Lin, Zifan, Long, Douglas, Louie, Dana R., Peña-Guerrero, Maria, Ranjan, Sukrit, Sotzen, Kristin S., Valentine, Daniel, Anderson, Jay, Balmer, William O., Bellini, Andrea, Hoch, Kielan K. W., Kammerer, Jens, Libralato, Mattia, Mountain, C. Matt, Perrin, Marshall D., Pueyo, Laurent, Rickman, Emily, Rebollido, Isabel, Sohn, Sangmo Tony, van der Marel, Roeland P., Watkins, Laura L.

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JWST-TST High Contrast: Spectroscopic Characterization of the Benchmark Brown Dwarf HD 19467 B with the NIRSpec Integral Field Spectrograph von Hoch, Kielan K. W., Theissen, Christopher A., Barman, Travis S., Perrin, Marshall D., Ruffio, Jean-Baptiste, Rickman, Emily, Konopacky, Quinn M., Manjavacas, Elena, Balmer, William O., Pueyo, Laurent, Kammerer, Jens, van der Marel, Roeland P., Lewis, Nikole K., Girard, Julien H., Seager, Sara, Clampin, Mark, Mountain, C. Matt

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JWST-TST Proper Motions. I. High-precision NIRISS Calibration and Large Magellanic Cloud Kinematics von Libralato, Mattia, Bellini, Andrea, van der Marel, Roeland P., Anderson, Jay, Sohn, Sangmo Tony, Watkins, Laura L., Alderson, Lili, Allen, Natalie, Clampin, Mark, Glidden, Ana, Goyal, Jayesh, Hoch, Kielan, Huang, Jingcheng, Kammerer, Jens, Lewis, Nikole K., Lin, Zifan, Long, Douglas, Louie, Dana, MacDonald, Ryan J., Mountain, Matt, Peña-Guerrero, Maria, Perrin, Marshall D., Pueyo, Laurent, Rebollido, Isabel, Rickman, Emily, Seager, Sara, Stevenson, Kevin B., Valenti, Jeff A., Valentine, Daniel, Wakeford, Hannah R.

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JWST-TST High Contrast: Asymmetries, Dust Populations, and Hints of a Collision in the β Pictoris Disk with NIRCam and MIRI von Rebollido, Isabel, Stark, Christopher C., Kammerer, Jens, Perrin, Marshall D., Lawson, Kellen, Pueyo, Laurent, Chen, Christine, Hines, Dean, Girard, Julien H., Worthen, Kadin, Ingerbretsen, Carl, Betti, Sarah, Clampin, Mark, Golimowski, David, Hoch, Kielan, Lewis, Nikole K., Lu, Cicero X., van der Marel, Roeland P., Rickman, Emily, Seager, Sara, Soummer, Rémi, Valenti, Jeff A., Ward-Duong, Kimberly, Mountain, C. Matt

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MIRI MRS Observations of β Pictoris. I. The Inner Dust, the Planet, and the Gas von Worthen, Kadin, Chen, Christine H., Law, David R., Lu, Cicero X., Hoch, Kielan, Chai, Yiwei, Sloan, G. C., Sargent, B. A., Kammerer, Jens, Hines, Dean C., Rebollido, Isabel, Balmer, William, Perrin, Marshall D., Watson, Dan M., Pueyo, Laurent, Girard, Julien H., Lisse, Carey M., Stark, Christopher C.

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JWST-TST High Contrast: Achieving Direct Spectroscopy of Faint Substellar Companions Next to Bright Stars with the NIRSpec Integral Field Unit von Ruffio, Jean-Baptiste, Perrin, Marshall D., Hoch, Kielan K. W., Kammerer, Jens, Konopacky, Quinn M., Pueyo, Laurent, Madurowicz, Alex, Rickman, Emily, Theissen, Christopher A., Agrawal, Shubh, Greenbaum, Alexandra Z., Miles, Brittany E., Barman, Travis S., Balmer, William O., Llop-Sayson, Jorge, Girard, Julien H., Rebollido, Isabel, Soummer, Rémi, Allen, Natalie H., Anderson, Jay, Beichman, Charles A., Bellini, Andrea, Bryden, Geoffrey, Espinoza, Néstor, Glidden, Ana, Huang, Jingcheng, Lewis, Nikole K., Libralato, Mattia, Louie, Dana R., Sohn, Sangmo Tony, Seager, Sara, van der Marel, Roeland P., Wakeford, Hannah R., Watkins, Laura L., Ygouf, Marie, Mountain, C. Matt

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Direct Imaging and Spectroscopy of Exoplanetary Systems with the JWST Early Release Science Program von McElwain, Michael W, Currie, Thayne Michael, Stapelfeldt, Karl Roald

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The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems. IV. NIRISS Aperture Masking Interferometry Performance and Lessons Learned von Sallum, Steph, Kammerer, Jens, Sivaramakrishnan, Anand, Greebaum, Alexandra Z., Thatte, Deepashri, De Furio, Matthew, Factor, Samuel M., Meyer, Michael R., Carter, Aarynn, Hinkley, Sasha, Skemer, Andrew, Perrin, Marshall D., Kraus, Adam L., Absil, Olivier, Balmer, William O., Betti, Sarah K., Boccaletti, Anthony, Bonnefoy, Mickael, Booth, Mark, Bowler, Brendan P., Briesemeister, Zackery W., Bryan, Marta L., Cantalloube, Faustine, Chauvin, Gael, Choquet, Elodie, Christiaens, Valentin, Cugno, Gabriele, Currie, Thayne, Danielski, Camilla, Faherty, Jacqueline K., Fitzgerald, Michael P., Fortney, Jonathan J., Franson, Kyle, Girard, Julien H., Grady, Carol A., Gonzales, Eileen C., Henning, Thomas, Hines, Dean C., Hoch, Kielan K. W., Hood, Callie E., Janson, Markus, Kennedy, Grant M., Kenworthy, Matthew A., Kervella, Pierre, Kitzmann, Daniel, Lagrange, Anne-Marie, Lagage, Pierre-Olivier, Lawson, Kellen, Lazzoni, Cecilia, Liu, Michael C., Liu, Pengyu, Llop-Sayson, Jorge, Lloyd, James P., Lueber, Anna, Macintosh, Bruce, Manjavacas, Elena, Marino, Sebastian, Marley, Mark S., Marois, Christian, Martinez, Raquel A., Matthews, Brenda C., Matthews, Elisabeth C., Mawet, Dimitri, Mazoyer, Johan, McElwain, Michael W., Metchev, Stanimir, Miles, Brittany E., Millar-Blanchaer, Maxwell A., Moran, Sarah E., Morley, Caroline V., Mukherjee, Sagnick, Palma-Bifani, Paulina, Pantin, Eric, Patapis, Polychronis, Petrus, Simon, Quanz, Sascha P., Rebollido, Isabel, Redai, Jea Adams, Ren, Bin B., Rickman, Emily, Samland, Matthias, Schneider, Glenn, Stapelfeldt, Karl R., Sutlieff, Ben J., Tamura, Motohide, Tan, Xianyu, Theissen, Christopher A., Uyama, Taichi, Vasist, Malavika, Vos, Johanna M., Wagner, Kevin, Ward-Duong, Kimberly, Whiteford, Niall, Wolff, Schuyler G., Worthen, Kadin, Ygouf, Marie, Zhang, Xi, Zhang, Zhoujian, Zhou, Yifan, Zurlo, Alice

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Atmospheric Abundances and Bulk Properties of the Binary Brown Dwarf Gliese 229Bab from JWST/MIRI Spectroscopy von Xuan, Jerry W., Perrin, Marshall D., Mawet, Dimitri, Knutson, Heather A., Mukherjee, Sagnick, Zhang, Yapeng, Hoch, Kielan K. W., Wang, Jason J., Inglis, Julie, Wallack, Nicole L., Ruffio, Jean-Baptiste

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Moderate-resolution K-band Spectroscopy of Substellar Companion κ Andromedae b von Wilcomb, Kielan K., Konopacky, Quinn M., Barman, Travis S., Theissen, Christopher A., Ruffio, Jean-Baptiste, Brock, Laci, Macintosh, Bruce, Marois, Christian

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Radial Velocity Measurements of HR 8799 b and c with Medium Resolution Spectroscopy von Ruffio, Jean-Baptiste, Macintosh, Bruce, Konopacky, Quinn M., Barman, Travis, De Rosa, Robert J., Wang, Jason J., Wilcomb, Kielan K., Czekala, Ian, Marois, Christian

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