Zobrazeno 1 - 10
of 18 572
pro vyhledávání: '"A. Greenbaum"'
Autor:
Beichman, Charles, Bryden, Geoffrey, Llop-Sayson, Jorge, Ygouf, Marie, Greenbaum, Alexandra, Leisenring, Jarron, Gaspar, Andras, Krist, John, Rieke, George, Wolff, Schuyler, Su, Kate, Hodapp, Klaus, Meyer, Michael, Kelly, Doug, Boyer, Martha, Johnstone, Doug, Horner, Scott, Rieke, Marcia
The most prominent of the IRAS debris disk systems, $\alpha$ Lyrae (Vega), at a distance of 7.7 pc, has been observed by both the NIRCam and MIRI instruments on the James Webb Space Telescope (JWST). This paper describes NIRCam coronagraphic observat
Externí odkaz:
http://arxiv.org/abs/2410.16551
Autor:
Mennesson, Bertrand, Belikov, Ruslan, Por, Emiel, Serabyn, Eugene, Ruane, Garreth, Riggs, A. J. Eldorado, Sirbu, Dan, Pueyo, Laurent, Soummer, Remi, Kasdin, Jeremy, Shaklan, Stuart, Seo, Byoung-Joon, Stark, Christopher, Cady, Eric, Chen, Pin, Crill, Brendan, Fogarty, Kevin, Greenbaum, Alexandra, Guyon, Olivier, Juanola-Parramon, Roser, Kern, Brian, Krist, John, Macintosh, Bruce, Marx, David, Mawet, Dimitri, Prada, Camilo Mejia, Morgan, Rhonda, Nemati, Bijan, Pogorelyuk, Leonid, Redmond, Susan, Seager, Sara, Siegler, Nicholas, Stapelfeldt, Karl, Steiger, Sarah, Trauger, John, Ygouf, a James K. Wallace Marie, Zimmerman, Neil
We summarize the current best polychromatic (10 to 20 % bandwidth) contrast performance demonstrated in the laboratory by different starlight suppression approaches and systems designed to directly characterize exoplanets around nearby stars. We pres
Externí odkaz:
http://arxiv.org/abs/2404.18036
Autor:
Blakely, Dori, Johnstone, Doug, Cugno, Gabriele, Sivaramakrishnan, Anand, Tuthill, Peter, Dong, Ruobing, Pope, Benjamin J. S., Albert, Loïc, Charles, Max, Cooper, Rachel A., De Furio, Matthew, Desdoigts, Louis, Doyon, René, Francis, Logan, Greenbaum, Alexandra Z., Lafrenière, David, Lloyd, James P., Meyer, Michael R., Pueyo, Laurent, Ray, Shrishmoy, Sánchez-Bermúdez, Joel, Soulain, Anthony, Thatte, Deepashri, Thompson, William, Vandal, Thomas
We observed the planet-hosting system PDS 70 with the James Webb Interferometer, JWST's Aperture Masking Interferometric (AMI) mode within NIRISS. Observing with the F480M filter centered at 4.8 $\mu$m, we simultaneously fit geometrical models to the
Externí odkaz:
http://arxiv.org/abs/2404.13032
Autor:
Lew, Ben W. P., Roellig, Thomas, Batalha, Natasha E., Line, Michael, Greene, Thomas, Murkherjee, Sagnick, Freedman, Richard, Meyer, Michael, Beichman, Charles, De Oliveira, Catarina Alves, De Furio, Matthew, Johnstone, Doug, Greenbaum, Alexandra Z., Marley, Mark, Fortney, Jonathan J., Young, Erick T., Leisenring, Jarron, Boyer, Martha, Hodapp, Klaus, Misselt, Karl, Stansberry, John, Rieke, Marcia
The launch of the James Webb Space Telescope (JWST) marks a pivotal moment for precise atmospheric characterization of Y dwarfs, the coldest brown dwarf spectral type. In this study, we leverage moderate spectral resolution observations (R $\sim$ 270
Externí odkaz:
http://arxiv.org/abs/2402.05900
Autor:
Thomas, Andrew D., Nielsen, Eric L., De Rosa, Robert J., Peck, Anne E., Macintosh, Bruce, Chilcote, Jeffrey, Kalas, Paul, Wang, Jason J., Blunt, Sarah, Greenbaum, Alexandra, Konopacky, Quinn M., Ireland, Michael J., Tuthill, Peter, Ward-Duong, Kimberly, Hirsch, Lea A., Czekala, Ian, Marchis, Franck, Marois, Christian, Millar-Blanchaer, Max A., Roberson, William, Smith, Adam, Gallamore, Hannah, Klusmeyer, Jessica
Publikováno v:
AJ 166 246 (2023)
We present new spatially resolved astrometry and photometry of the CD-27 11535 system, a member of the $\beta$ Pictoris moving group consisting of two resolved K-type stars on a $\sim$20-year orbit. We fit an orbit to relative astrometry measured fro
Externí odkaz:
http://arxiv.org/abs/2312.00939
Autor:
Lau, Ryan M., Hankins, Matthew J., Sanchez-Bermudez, Joel, Thatte, Deepashri, Soulain, Anthony, Cooper, Rachel A., Sivaramakrishnan, Anand, Corcoran, Michael F., Greenbaum, Alexandra Z., Gull, Theodore R., Han, Yinuo, Jones, Olivia C., Madura, Thomas, Moffat, Anthony F. J., Morris, Mark R., Onaka, Takashi, Russell, Christopher M. P., Richardson, Noel D., Smith, Nathan, Tuthill, Peter, Volk, Kevin, Weigelt, Gerd, Williams, Peredur M.
We present infrared aperture masking interferometry (AMI) observations of newly formed dust from the colliding winds of the massive binary system Wolf-Rayet (WR) 137 with JWST using the Near Infrared Imager and Slitless Spectrograph (NIRISS). NIRISS
Externí odkaz:
http://arxiv.org/abs/2311.15948
We provide numerical bounds on the Crouzeix ratiofor KLS matrices $A$ which have a line segment on the boundary of the numerical range. The Crouzeix ratio is the supremum over all polynomials $p$ of the spectral norm of $p(A)$ dividedby the maximum a
Externí odkaz:
http://arxiv.org/abs/2311.13890
Autor:
Ygouf, Marie, Beichman, Charles, Llop-Sayson, Jorge, Bryden, Geoffrey, Leisenring, Jarron, Gaspar, Andras, Krist, John, Rieke, Marcia, Rieke, George, Wolff, Schuyler, Roellig, Thomas, Su, Kate, Hainline, Kevin, Hodapp, Klaus, Greene, Thomas, Meyer, Michael, Kelly, Doug, Misselt, Karl, Stansberry, John, Boyer, Martha, Johnstone, Doug, Horner, Scott, Greenbaum, Alexandra
We report observations with the JWST/NIRCam coronagraph of the Fomalhaut system. This nearby A star hosts a complex debris disk system discovered by the IRAS satellite. Observations in F444W and F356W filters using the round 430R mask achieve a contr
Externí odkaz:
http://arxiv.org/abs/2310.15028
Autor:
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, Mountai, C. Matt
The JWST NIRSpec integral field unit (IFU) presents a unique opportunity to observe directly imaged exoplanets from 3-5 um at moderate spectral resolution (R~2,700) and thereby better constrain the composition, disequilibrium chemistry, and cloud pro
Externí odkaz:
http://arxiv.org/abs/2310.09902
Autor:
Jace Jones-Tabah, Kathy He, Nathan Karpilovsky, Konstantin Senkevich, Ghislaine Deyab, Isabella Pietrantonio, Thomas Goiran, Yuting Cousineau, Daria Nikanorova, Taylor Goldsmith, Esther del Cid Pellitero, Carol X.-Q. Chen, Wen Luo, Zhipeng You, Narges Abdian, Jamil Ahmad, Jennifer A. Ruskey, Farnaz Asayesh, Dan Spiegelman, Stanley Fahn, Cheryl Waters, Oury Monchi, Yves Dauvilliers, Nicolas Dupré, Irina Miliukhina, Alla Timofeeva, Anton Emelyanov, Sofya Pchelina, Lior Greenbaum, Sharon Hassin-Baer, Roy N. Alcalay, Austen Milnerwood, Thomas M. Durcan, Ziv Gan-Or, Edward A. Fon
Publikováno v:
Molecular Neurodegeneration, Vol 19, Iss 1, Pp 1-21 (2024)
Abstract Background Variants in the CTSB gene encoding the lysosomal hydrolase cathepsin B (catB) are associated with increased risk of Parkinson’s disease (PD). However, neither the specific CTSB variants driving these associations nor the functio
Externí odkaz:
https://doaj.org/article/e2786b44f0ab42b995b54fb1787459cd
