VLTI/GRAVITY Observations of AF Lep b: Preference for Circular Orbits, Cloudy Atmospheres, and a Moderately Enhanced Metallicity

Autor: Balmer, William O., Franson, Kyle, Chomez, Antoine, Pueyo, Laurent, Stolker, Tomas, Lacour, Sylvestre, Nowak, Mathias, Nasedkin, Evert, Bonse, Markus J., Thorngren, Daniel, Palma-Bifani, Paulina, Molliere, Paul, Wang, Jason J., Zhang, Zhoujian, Chavez, Amanda, Kammerer, Jens, Blunt, Sarah, Bowler, Brendan P., Bonnefoy, Mickael, Brandner, Wolfgang, Charnay, Benjamin, Chauvin, Gael, Henning, Th., Lagrange, A. -M., Pourre, Nicolas, Rickman, Emily, De Rosa, Robert, Vigan, Arthur, Winterhalder, Thomas

Direct imaging observations are biased towards wide-separation, massive companions that have degenerate formation histories. Although the majority of exoplanets are expected to form via core accretion, most directly imaged exoplanets have not been co

Externí odkaz: http://arxiv.org/abs/2411.05917

The Keck-HGCA Pilot Survey II: Direct Imaging Discovery of HD 63754 B, a ~20 au Massive Companion Near the Hydrogen Burning Limit

Autor: Li, Yiting, Brandt, Timothy D., Franson, Kyle, An, Qier, Tobin, Taylor, Currie, Thayne, Chen, Minghan, Wang, Lanxuan, Dupuy, Trent J., Bowens-Rubin, Rachel, Salama, Maissa, Lewis, Briley L., Gibbs, Aidan, Bowler, Brendan P., Jensen-Clem, Rebecca, Faherty, Jacqueline, Fitzgerald, Michael P., Mazin, Benjamin A.

We present the joint astrometric and direct imaging discovery, mass measurement, and orbital analysis of HD 63754 B (HIP 38216 B), a companion near the stellar-substellar boundary orbiting ~20 AU from its Sun-like host. HD 63754 was observed in our o

Externí odkaz: http://arxiv.org/abs/2408.01546

The Brain Tumor Segmentation in Pediatrics (BraTS-PEDs) Challenge: Focus on Pediatrics (CBTN-CONNECT-DIPGR-ASNR-MICCAI BraTS-PEDs)

Autor: Kazerooni, Anahita Fathi, Khalili, Nastaran, Liu, Xinyang, Gandhi, Deep, Jiang, Zhifan, Anwar, Syed Muhammed, Albrecht, Jake, Adewole, Maruf, Anazodo, Udunna, Anderson, Hannah, Baid, Ujjwal, Bergquist, Timothy, Borja, Austin J., Calabrese, Evan, Chung, Verena, Conte, Gian-Marco, Dako, Farouk, Eddy, James, Ezhov, Ivan, Familiar, Ariana, Farahani, Keyvan, Franson, Andrea, Gottipati, Anurag, Haldar, Shuvanjan, Iglesias, Juan Eugenio, Janas, Anastasia, Johansen, Elaine, Jones, Blaise V, Khalili, Neda, Kofler, Florian, LaBella, Dominic, Lai, Hollie Anne, Van Leemput, Koen, Li, Hongwei Bran, Maleki, Nazanin, McAllister, Aaron S, Meier, Zeke, Menze, Bjoern, Moawad, Ahmed W, Nandolia, Khanak K, Pavaine, Julija, Piraud, Marie, Poussaint, Tina, Prabhu, Sanjay P, Reitman, Zachary, Rudie, Jeffrey D, Sanchez-Montano, Mariana, Shaikh, Ibraheem Salman, Sheth, Nakul, Tu, Wenxin, Wang, Chunhao, Ware, Jeffrey B, Wiestler, Benedikt, Zapaishchykova, Anna, Bornhorst, Miriam, Deutsch, Michelle, Fouladi, Maryam, Lazow, Margot, Mikael, Leonie, Hummel, Trent, Kann, Benjamin, de Blank, Peter, Hoffman, Lindsey, Aboian, Mariam, Nabavizadeh, Ali, Packer, Roger, Bakas, Spyridon, Resnick, Adam, Rood, Brian, Vossough, Arastoo, Linguraru, Marius George

Pediatric tumors of the central nervous system are the most common cause of cancer-related death in children. The five-year survival rate for high-grade gliomas in children is less than 20%. Due to their rarity, the diagnosis of these entities is oft

Externí odkaz: http://arxiv.org/abs/2404.15009

The discovery of two new benchmark brown dwarfs with precise dynamical masses at the stellar-substellar boundary

Autor: Rickman, Emily L., Ceva, Will, Matthews, Elisabeth C., Ségransan, Damien, Bowler, Brendan P., Forveille, Thierry, Franson, Kyle, Hagelberg, Janis, Udry, Stéphane, Vigan, Arthur

Publikováno v: A&A 684, A88 (2024)

Aims. Measuring dynamical masses of substellar companions is a powerful tool to test models of mass-luminosity-age relations, as well as determining observational features that constrain the boundary between stellar and substellar companions. In orde

Externí odkaz: http://arxiv.org/abs/2401.10058

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems III: Aperture Masking Interferometric Observations of the star HIP 65426

Autor: Ray, Shrishmoy, Sallum, Steph, Hinkley, Sasha, Sivamarakrishnan, Anand, Cooper, Rachel, Kammerer, Jens, Greebaum, Alexandra Z., Thatte, Deepashri, Lazzoni, Cecilia, Tokovinin, Andrei, de Furio, Matthew, Factor, Samuel, Meyer, Michael, Stone, Jordan M., Carter, Aarynn, Biller, Beth, Skemer, Andrew, Suarez, Genaro, Leisenring, Jarron M., Perrin, Marshall D., Kraus, Adam L., Absil, Olivier, Balmer, William O., Bonnefoy, Mickael, Bryan, Marta L., Betti, Sarah K., Boccaletti, Anthony, Bonavita, Mariangela, Booth, Mark, Bowler, Brendan P., Briesemeister, Zackery W., Cantalloube, Faustine, Chauvin, Gael, Christiaens, Valentin, Cugno, Gabriele, Currie, Thayne, Danielski, Camilla, Dupuy, Trent J., Faherty, Jacqueline K., Chen, Christine H., Calissendorff, Per, Choquet, Elodie, 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., Howe, Alex R., Janson, Markus, Kalas, Paul, Kennedy, Grant M., Kenworthy, Matthew A., Kervella, Pierre, Kitzmann, Daniel, Kuzuhara, Masayuki, Lagrange, Anne-Marie, Lagage, Pierre-Olivier, Lawson, Kellen, Lew, Ben W. P., 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., Molliere, Paul, Moran, Sarah E., Morley, Caroline V., Mukherjee, Sagnick, Palma-Bifani, Paulina, Pantin, Eric, Patapis, Polychronis, Petrus, Simon, Pueyo, Laurent, Quanz, Sascha P., Quirrenbach, Andreas, Rebollido, Isabel, Redai, Jea Adams, Ren, Bin B., Rickman, Emily, Samland, Matthias, Sargent, B. A., Schlieder, Joshua E., Schneider, Glenn, Stapelfeldt, Karl R., Sutlieff, Ben J., Tamura, Motohide, Tan, Xianyu, Theissen, Christopher A., Uyama, Taichi, Vigan, Arthur, Vasist, Malavika, Vos, Johanna M., Wagner, Kevin, Wang, Jason J., Ward-Duong, Kimberly, Whiteford, Niall, Wolff, Schuyler G., Worthen, Kadin, Wyatt, Mark C., Ygouf, Marie, Zhang, Xi, Zhang, Keming, Zhang, Zhoujian, Zhou, Yifan

We present aperture masking interferometry (AMI) observations of the star HIP 65426 at $3.8\,\rm{\mu m}$ as a part of the JWST Direct Imaging Early Release Science (ERS) program obtained using the Near Infrared Imager and Slitless Spectrograph (NIRIS

Externí odkaz: http://arxiv.org/abs/2310.11508