Results 81 to 90 of about 26,106 (206)

NASA’s Pandora SmallSat Mission: Simulated Modeling and Retrieval of Near-infrared Exoplanet Transmission Spectra

The Astronomical Journal
Pandora is a SmallSat mission dedicated to understanding exoplanets and their host stars by disentangling the impact of stellar heterogeneity on exoplanet transmission spectra.
Yoav Rotman, Peter McGill, Luis Welbanks, Benjamin V. Rackham, Aishwarya Iyer, Dániel Apai, Michael R. Line, Elisa V. Quintana, Jessie L. Dotson, Knicole D. Colón, Thomas Barclay, Christina Hedges, Jason F. Rowe, Emily A. Gilbert, Brett M. Morris, Jessie L. Christiansen, Trevor O. Foote, Aylin García Soto, Thomas P. Greene, Kelsey Hoffman, Benjamin J. Hord, Aurora Y. Kesseli, Veselin B. Kostov, Megan Weiner Mansfield, Lindsey S. Wiser   +24 more
doaj   +1 more source

The Ionosphere of Uranus as Revealed by JWST

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract The first spectroscopic observations of Uranus by the James Webb Space Telescope were obtained in January 2023. Using these observations, we explored the physical properties of the planet's ionosphere through the analysis of near‐infrared H3+ ${\mathrm{H}}_{3}^{+}$ spectra.
Henrik Melin, L. N. Fletcher, H. B. Hammel, S. N. Milam, L. Moore, T. S. Stallard, J. O’Donoghue, P. I. Tiranti, E. M. Thomas, K. L. Knowles, M. Roman, L. Lamy, O. R. T. King, J. Harkett   +13 more
wiley   +1 more source

What JWST will see

, 2022
Big galaxies at high redshift! That's my prediction, anyway. A little context first. New Year, New Telescope First, JWST finally launched. This has been a long-delayed NASA mission; the launch had been put off so many times it felt like a living example of Zeno's paradox: ever closer but never quite there.
openaire   +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

Photometric and Astrometric Calibration of the JWST Instrument Complement

, 2006
In preparation for James Webb Space Telescope (JWST), a set of cross calibration programs with HST and Spitzer for suitable primary photometric standards and astrometric fields were developed.
Diaz-Miller, Rosa I.
core   +1 more source

Science Impacts of the SPHEREx All-Sky Optical to Near-Infrared Spectral Survey: Report of a Community Workshop Examining Extragalactic, Galactic, Stellar and Planetary Science

, 2016
SPHEREx is a proposed SMEX mission selected for Phase A. SPHEREx will carry out the first all-sky spectral survey and provide for every 6.2" pixel a spectra between 0.75 and 4.18 $\mu$m [with R$\sim$41.4] and 4.18 and 5.00 $\mu$m [with R$\sim$135].
Ashby, Matt, Banerjee, Pancha, Battaglia, Nick, Bauer, James, Benjamin, Robert A., Bleem, Lindsey E., Bock, Jamie, Boogert, Adwin, Bull, Philip, Capak, Peter, Chang, Tzu-Ching, Chiar, Jean, Cohen, Seth H., Cooray, Asantha, Crill, Brendan, Cushing, Michael, de Putter, Roland, Doré, Olivier, Driver, Simon P., Eifler, Tim, Feng, Chang, Ferraro, Simone, Finkbeiner, Douglas, Gaudi, B. Scott, Greene, Tom, Hillenbrand, Lynne, Hsiao, Eric, Huffenberger, Kevin, Höflich, Peter A., Jansen, Rolf A., Jeong, Woong-Seob, Joshi, Bhavin, Kim, Duho, Kim, Minjin, Kirkpatrick, J. Davy, Korngut, Phil, Krause, Elisabeth, Kriek, Mariska, Leistedt, Boris, Li, Aigen, Lisse, Carey M., Mauskopf, Phil, Mechtley, Matt, Melnick, Gary, Mohr, Joseph, Murphy, Jeremiah, Neben, Abraham, Neufeld, David, Nguyen, Hien, Pierpaoli, Elena, Pyo, Jeonghyun, Rhodes, Jason, Sandstrom, Karin, Schaan, Emmanuel, Schlaufman, Kevin C., Silverman, John, Stassun, Keivan, Stevens, Daniel, Strauss, Michael A., Su, Kate, Tielens, Xander, Tolls, Volker, Tsai, Chao-Wei, Unwin, Stephen, Viero, Marco, Werner, Michael W., Windhorst, Rogier A., Zemcov, Michael   +67 more
core  

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

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

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