Results 71 to 80 of about 16,947 (174)

A benchmark JWST near-infrared spectrum for the exoplanet WASP-39 b [Elektronisk resurs]

A combined analysis of datasets across four JWST instrument modes provides a benchmark transmission spectrum for the Saturn-mass WASP-39 b. The broad wavelength range and high resolution constrain orbital and stellar parameters to below 1%
Ahrer, Eva Maria,, Alderson, L.,, Cubillos, P. E.,, Redfield, S.,, Taylor, Jake,, Nixon, M. C.,, Fortney, Jonathan J.,, Rustamkulov, Zafar,, Turner, Jake D.,, Brahm, Rafael,, Feinstein, A. D.,, Wheatley, P. J.,, Lagage, P. O.,, Lustig-Yaeger, J.,, Mansfield, M.,, Kreidberg, L.,, Wakeford, Hannah R.,, Kempton, Eliza M.R.,, Batalha, Natalie,, De Val-Borro, Miguel,, Murray, C.A.,, Lothringer, Joshua D.,, Mancini, L.,, Grant, D.,, O’Steen, R.,, Flagg, Laura,, Coulombe, Louis Philippe,, Parmentier, Vivien,, Gibson, N. P.,, Powell, Diana,, Brande, Jonathan,, Molaverdikhani, K.,, Gill, S.,, Crossfield, I. J.M.,, May, E. M.,, Schlawin, E.,, Mayorga, L. C.,, Knutson, H.,, López-Morales, Mercedes,, Radica, Michael,, Caceres, Claudio,, Carter, Aarynn L.,, Benneke, B.,, Roy, P.,, Espinoza, Néstor,, Bell, Taylor,, Battley, M. P.,, Stevenson, Kevin B.,, Kirk, J.,, Mayne, Nathan J.,, Petit dit de la Roche, Dominique J.M.,, Sing, David K.,, Damiano, Mario,, Blecic, Jasmina,, Crouzet, N.,, Welbanks, Luis,, Moran, Sarah E.,, Zieba, Sebastian,, Aggarwal, Keshav,, Desert, J. M.,, Hu, Renyu,, Inglis, Julie,, Barstow, J.,, Line, Michael R.,, Decin, L.,, Bayliss, D.,, Berta-Thompson, Z. K.,, Daylan, Tansu,, Bryant, E.,, Rackham, Benjamin V.,, Zhang, Xi,, Morello, Giuseppe,, Anderson, D.,, Bean, Jacob L.,, Heng, Kevin,, Ohno, K.,, Wallack, N. L.,, Nasedkin, E.,, Burleigh, Matt,, Alam, Munazza K.,   +79 more
core   +1 more source

JWST OTE Development Status [PDF]

, 2009
This slide presentation reviews the status of the optical telescope element (OTE) for the James Webb Space Telescope (JWST). Information about the cryotests that have been performed, and the test of the Primary Mirror Segment Assembly (PMSA) is included.
Keski-Kuha, Ritva
core  

HybPSF: Hybrid Point-spread Function Reconstruction for the Observed JWST NIRCam Image

The Astronomical Journal
The James Webb Space Telescope (JWST) marks a new era of astronomical observation and discovery, providing unrivaled precision in various measurements, including photometry, morphology, and shear measurement.
Lin Nie, Huanyuan Shan, Guoliang Li, Lei Wang, Cheng Cheng, Charling Tao, Qifan Cui, Yushan Xie, Dezi Liu, Zekang Zhang   +9 more
doaj   +1 more source

Lyα visibility from z = 4.5 to 11 in the UDS field: Evidence for a high neutral hydrogen fraction and small ionized bubbles at z ∼ 7

Astronomy & Astrophysics
The resonant scattering nature of Lyα photons interacting with neutral hydrogen makes Lyα emitters (LAEs) robust tracers of the intergalactic neutral hydrogen fraction, and thus sensitive probes of cosmic reionization.
Napolitano L., Pentericci L., Dickinson M., Arrabal Haro P., Taylor A. J., Calabrò A., Bhagwat A., Santini P., Arevalo-Gonzalez F., Begley R., Castellano M., Ciardi B., Donnan C. T., Dottorini D., Dunlop J. S., Finkelstein S. L., Fontana A., Giavalisco M., Hirschmann M., Jung I., Koekemoer A. M., Kokorev V., Llerena M., Lucas R. A., Mascia S., Merlin E., Pérez-González P. G., Stanton T. M., Tripodi R., Wang X., Weiner B. J.   +30 more
doaj   +1 more source

COSMOS-Web: Comprehensive Data Reduction for Wide-area JWST NIRCam Imaging

The Astrophysical Journal
We present the data reduction methodology used for the COSMOS-Web survey JWST NIRCam data. Covering 0.54 deg ^2 with four broadband filters (F115W, F150W, F277W, F444W) and a total exposure time of approximately 270 hr, COSMOS-Web represents the largest ...
Maximilien Franco, Caitlin M. Casey, Anton M. Koekemoer, Daizhong Liu, Micaela B. Bagley, Henry Joy McCracken, Jeyhan S. Kartaltepe, Hollis B. Akins, Olivier Ilbert, Marko Shuntov, Santosh Harish, Brant E. Robertson, Rafael C. Arango-Toro, Andrew J. Battisti, Nima Chartab, Nicole E. Drakos, Andreas L. Faisst, Carter Flayhart, Ghassem Gozaliasl, Michaela Hirschmann, Richard Massey, Jason Rhodes, Zahra Sattari, Diana Scognamiglio, John R. Weaver, Lilan Yang, Jorge A. Zavala, Edward M. Berman, Fabrizio Gentile, Steven Gillman, Arianna S. Long, Georgios Magdis, Jacqueline E. McCleary, Jed McKinney, Bahram Mobasher, Louise Paquereau, Armin Rest, David B. Sanders, Sune Toft, Si-Yue Yu   +39 more
doaj   +1 more source

Molecular Jets from an Evolved Protostar: Insights from JWST-ALMA Synergy

The Astrophysical Journal
The combination of the Atacama Large Millimeter/submillimeter Array (ALMA) and JWST/MIRI mid-infrared observations offers a transformative view of protostellar jets and outflows by probing cold and warm gas components across diverse physical conditions ...
Somnath Dutta
doaj   +1 more source

The BoRG-JWST Survey: Abundance and Mass-to-light Ratio of Luminous z = 7–9 Galaxies from Independent Sight Lines with NIRSpec

The Astrophysical Journal
We present new results on the rest-frame UV luminosity function (UVLF) and stellar mass-to-light ( M / L ) ratio of bright ( M _UV  ≲ −20 mag) spectroscopically confirmed galaxies at z  = 7–9 derived from the BoRG-JWST survey, a unique data set of ...
Sofía Rojas-Ruiz, Micaela Bagley, Guido Roberts-Borsani, Tommaso Treu, Steven L. Finkelstein, Takahiro Morishita, Nicha Leethochawalit, Charlotte Mason, Eduardo Bañados, Michele Trenti, Massimo Stiavelli, L. Y. Aaron Yung, Pablo Arrabal Haro, Rachel S. Somerville, Christian Soto   +14 more
doaj   +1 more source

Toward Reconciling Reionization with JWST: The Role of Bright Galaxies and Strong Feedback

The Astrophysical Journal
The elevated UV luminosity functions (UVLFs) from recent James Webb Space Telescope (JWST) observations have challenged the viability of existing theoretical models.
Ankita Bera, Sultan Hassan, Robert Feldmann, Romeel Davé, Kristian Finlator   +4 more
doaj   +1 more source

Solar System Observations with JWST [PDF]

, 2014
The James Webb Space Telescope will enable a wealth of new scientific investigations in the near- and mid- infrared, with sensitivity and spatial-spectral resolution greatly surpassing its predecessors.
Sonneborn, George, Lunine, Jonathan, Tiscareno, Matthew, Norwood, James, Chanover, Nancy, Hines, Dean, Milam, Stefanie, Brown, Michael, Stansberry, John, Hammel, Heidi, Ferruit, Pierre   +10 more
core  

NIR Filter Transformations Across the HR Diagram: JWST, Roman, and Euclid

The Astronomical Journal
We present new color transformations between select near-infrared filters on JWST/NIRCam, Euclid/NISP, Roman/WFI, HST, and ground-based izY + IJHK _S , for a total of 105 unique filter combinations. Additionally, we apply these transformations to predict
M. J. Durbin, R. L. Beaton, A. J. Monson, B. Swidler   +3 more
doaj   +1 more source