A JWST MIRI MRS View of the $\eta$ Tel Debris Disk and its Brown Dwarf Companion

Autor: Chai, Yiwei, Chen, Christine H., Worthen, Kadin, Li, Alexis, Sefilian, Antranik, Balmer, William, Hines, Dean C., Law, David R., Sargent, B. A., Wyatt, Mark, Lu, Cicero X., Perrin, Marshall D., Rebollido, Isabel, Rickman, Emily, Sloan, G. C.

We report JWST MIRI MRS observations of the $\beta$ Pictoris moving group member, $\eta$ Telescopii ($\eta$ Tel) A and its brown dwarf binary companion, $\eta$ Tel B. Following PSF subtraction, we recover the spatially resolved flux from the debris d

Externí odkaz: http://arxiv.org/abs/2408.11692

MIRI MRS Observations of Beta Pictoris II. The Spectroscopic Case for a Recent Giant Collision

Autor: Chen, Christine H., Lu, Cicero X., Worthen, Kadin, Law, David R., Sargent, B. A., Moro-Martin, Amaya, Sloan, G. C., Lisse, Carey M., Watson, Dan M., Girard, Julien H., Chai, Yiwei, Hines, Dean C., Kammerer, Jens, Li, Alexis, Perrin, Marshall, Pueyo, Laurent, Rebollido, Isabel, Stapelfeldt, Karl R., Stark, Christopher, Werner, Michael W.

Modeling observations of the archetypal debris disk around $\beta$ Pic, obtained in 2023 January with the MIRI MRS on board JWST, reveals significant differences compared with that obtained with the IRS on board Spitzer. The bright 5 - 15 $\mu$m cont

Externí odkaz: http://arxiv.org/abs/2407.04661

A Uniform Analysis of Debris Disks with the Gemini Planet Imager II: Constraints on Dust Density Distribution Using Empirically-Informed Scattering Phase Functions

Autor: Hom, Justin, Patience, Jennifer, Chen, Christine H., Duchêne, Gaspard, Mazoyer, Johan, Millar-Blanchaer, Maxwell A., Esposito, Thomas M., Kalas, Paul, Crotts, Katie A., Gonzales, Eileen C., Kolokolova, Ludmilla, Lewis, Briley L., Matthews, Brenda C., Rice, Malena, Weinberger, Alycia J., Wilner, David J., Wolff, Schuyler G., Bruzzone, Sebastián, Choquet, Elodie, Debes, John, De Rosa, Robert J., Donaldson, Jessica, Draper, Zachary, Fitzgerald, Michael P., Hines, Dean C., Hinkley, Sasha, Hughes, A. Meredith, López, Ronald A., Marchis, Franck, Metchev, Stanimir, Moro-Martin, Amaya, Nesvold, Erika, Nielsen, Eric L., Oppenheimer, Rebecca, Padgett, Deborah, Perrin, Marshall D., Pueyo, Laurent, Rantakyrö, Frederik, Ren, Bin B., Schneider, Glenn, Soummer, Remí, Song, Inseok, Stark, Christopher C.

Spatially-resolved images of debris disks are necessary to determine disk morphological properties and the scattering phase function (SPF) which quantifies the brightness of scattered light as a function of phase angle. Current high-contrast imaging

Externí odkaz: http://arxiv.org/abs/2402.00214

JWST-TST High Contrast: Asymmetries, dust populations and hints of a collision in the $\beta$ Pictoris disk with NIRCam and MIRI

Autor: 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, Remi, Valenti, Jeff A., Ward-Duong, Kimberly, Mountain, C. Matt

We present the first JWST MIRI and NIRCam observations of the prominent debris disk around Beta Pictoris. Coronagraphic observations in 8 filters spanning from 1.8 to 23~$\mu$m provide an unprecedentedly clear view of the disk at these wavelengths. T

Externí odkaz: http://arxiv.org/abs/2401.05271

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems V: Do Self-Consistent Atmospheric Models Represent JWST Spectra? A Showcase With VHS 1256 b

Autor: Petrus, Simon, Whiteford, Niall, Patapis, Polychronis, Biller, Beth A., Skemer, Andrew, Hinkley, Sasha, Suárez, Genaro, Lueber, Anna, Palma-Bifani, Paulina, Stone, Jordan M., Vos, Johanna M., Morley, Caroline V., Tremblin, Pascal, Charnay, Benjamin, Helling, Christiane, Miles, Brittany E., Carter, Aarynn L., Wang, Jason J., Janson, Markus, Gonzales, Eileen C., Sutlieff, Ben, Hoch, Kielan K. W., Bonnefoy, Mickaël, Chauvin, Gaël, Absil, Olivier, Balmer, William O., Boccaletti, Anthony, Bonavita, Mariangela, Booth, Mark, Bowler, Brendan P., Briesemeister, Zackery W., Bryan, Marta L., Calissendorff, Per, Cantalloube, Faustine, Chen, Christine H., Choquet, Elodie, Christiaens, Valentin, Cugno, Gabriele, Currie, Thayne, Danielski, Camilla, De Furio, Matthew, Dupuy, Trent J., Factor, Samuel M., Faherty, Jacqueline K., Fitzgerald, Michael P., Fortney, Jonathan J., Franson, Kyle, Girard, Julien H., Grady, Carol A., Henning, Thomas, Hines, Dean C., Hood, Callie E., Howe, Alex R., Kalas, Paul, Kammerer, Jens, Kennedy, Grant M., Kenworthy, Matthew A., Kervella, Pierre, Kim, Minjae, Kitzmann, Daniel, Kraus, Adam L., Kuzuhara, Masayuki, Lagage, Pierre-Olivier, Lagrange, Anne-Marie, Lawson, Kellen, Lazzoni, Cecilia, Leisenring, Jarron M., Lew, Ben W. P., Liu, Michael C., Liu, Pengyu, Llop-Sayson, Jorge, Lloyd, James P., Macintosh, Bruce, Mâlin, Mathilde, Manjavacas, Elena, Marino, Sebastián, Marley, Mark S., Marois, Christian, Martinez, Raquel A., Matthews, Elisabeth C., Matthews, Brenda C., Mawet, Dimitri, Mazoyer, Johan, McElwain, Michael W., Metchev, Stanimir, Meyer, Michael R., Millar-Blanchaer, Maxwell A., Mollière, Paul, Moran, Sarah E., Mukherjee, Sagnick, Pantin, Eric, Perrin, Marshall D., Pueyo, Laurent, Quanz, Sascha P., Quirrenbach, Andreas, Ray, Shrishmoy, Rebollido, Isabel, Redai, Jea Adams, Ren, Bin B., Rickman, Emily, Sallum, Steph, Samland, Matthias, Sargent, Benjamin, Schlieder, Joshua E., Stapelfeldt, Karl R., Tamura, Motohide, Tan, Xianyu, Theissen, Christopher A., Uyama, Taichi, Vasist, Malavika, Vigan, Arthur, Wagner, Kevin, Ward-Duong, Kimberly, Wolff, Schuyler G., Worthen, Kadin, Wyatt, Mark C., Ygouf, Marie, Zurlo, Alice, Zhang, Xi, Zhang, Keming, Zhan, Zhoujian, Zhou, Yifan

The unprecedented medium-resolution (R~1500-3500) near- and mid-infrared (1-18um) spectrum provided by JWST for the young (140+/-20Myr) low-mass (12-20MJup) L-T transition (L7) companion VHS1256b gives access to a catalogue of molecular absorptions.

Externí odkaz: http://arxiv.org/abs/2312.03852