Results 21 to 30 of about 26,106 (206)

Constraining Exoplanet Mass from Transmission Spectroscopy [PDF]

, 2013
Determination of an exoplanet's mass is a key to understanding its basic properties, including its potential for supporting life. To date, mass constraints for exoplanets are predominantly based on radial velocity (RV) measurements, which are not suited ...
de Wit, Julien, Seager, Sara
core   +1 more source

Transiting Exoplanets with JWST [PDF]

, 2009
22 pages, 11 figures. In press in "Astrophysics in the Next Decade: JWST and Concurrent Facilities, Astrophysics & Space Science Library, Thronson, H. A., Tielens, A., Stiavelli, M., eds., Springer: Dordrecht (2008)." The original publication will be available at http://www.springerlink ...
Seager, S., Deming, D., Valenti, J. A.
openaire   +2 more sources

JWST's PEARLS

Astronomy & Astrophysics, 2023
The first James Webb Space Telescope (JWST) data on the massive colliding cluster El Gordo allow for 23 known families of multiply lensed images to be confirmed and for eight new members of these families to be identified. Based on these families, which have been confirmed spectroscopically by MUSE, we derived an initial lens model.
Diego, J. M., Meena, A. K., Adams, N. J., Broadhurst, T., Dai, L., Coe, D., Frye, B., Kelly, P., Koekemoer, A. M., Pascale, M., Willner, S. P., Zackrisson, E., Zitrin, A., Windhorst, R. A., Cohen, S. H., Jansen, R. A., Summers, J., Tompkins, S., Conselice, C. J., Driver, S. P., Yan, H., Grogin, N., Marshall, M. A., Pirzkal, N., Robotham, A., Ryan, R. E., Willmer, C. N.A., Bradley, L. D., Caminha, G., Caputi, K., Carleton, T., Kamieneski, P.   +31 more
openaire   +1 more source

A JWST Pure-Parallel Search for the First Galaxies With PANORAMIC

Edinburgh Student Journal of Science
The James Webb Space Telescope offers unparalleled capabilities for observing the most distant objects in the universe, allowing us to study the first galaxies to form. In this work, the Lyman-break technique and spectral energy distribution fitting were
Hanna Golawska, Derek McLeod
doaj   +1 more source

Mission Concept for the Single Aperture Far-Infrared (SAFIR) Observatory

, 2005
The Single Aperture Far-InfraRed (SAFIR) Observatory's science goals are driven by the fact that the earliest stages of almost all phenomena in the universe are shrouded in absorption by and emission from cool dust and gas that emits strongly in the far ...
A.W. Blain, C.D. Dowell, David T. Leisawitz, Dominic J. Benford, E.T. Young, J.W. Kooi, John C. Mather, L.W. Looney, M. Dragovan, M. Harwit, M.J. Amato, Michael J. Amato, National Academy of Sciences, National Academy of Sciences, P. Shirron, P.M. Harvey, S. Harvey Moseley   +16 more
core   +1 more source

Leveraging Machine Learning for Photometric Redshift Estimation of JWST Galaxies

Edinburgh Student Journal of Science
With the launch of JWST, the volume and complexity of astronomical data are increasing, a trend that will continue with future instruments such as SKA and Euclid. It is inevitable that data-driven methods will become more prominent alongside model-driven
Julie Kalná, Ryan Begley, Callum Donnan
doaj   +1 more source

JWST observations of stellar occultations by solar system bodies and rings

, 2015
In this paper we investigate the opportunities provided by the James Webb Space Telescope (JWST) for significant scientific advances in the study of solar system bodies and rings using stellar occultations.
Bosh, A., Braga-Ribas, F., Duffard, R., French, R. G., group., the JWST occultations focus, Lellouch, E., Lin, Z-Y., Milam, S. N., Müller, Th., Ortiz, J. L., Pinilla-Alonso, N., Santos-Sanz, P., Stansberry, J., Tancredi, G., Vilenius, E., Young, L., Zhang, Z-W.   +16 more
core   +3 more sources

Peering into the Cosmic Dawn: JWST Cycle 1 Data Reveals Early Galaxy Candidates at Redshifts z > 9.5

Edinburgh Student Journal of Science
Observing high-redshift objects provides a window into the past, enabling insight into galaxy formation, matter distribution, and the nature of dark matter and energy.
Sev Zielinska
doaj   +1 more source

Commentary: JWST near-infrared detector degradation— finding the problem, fixing the problem, and moving forward

AIP Advances, 2012
The James Webb Space Telescope (JWST) is the successor to the Hubble Space Telescope. JWST will be an infrared-optimized telescope, with an approximately 6.5 m diameter primary mirror, that is located at the Sun-Earth L2 Lagrange point.
Bernard J. Rauscher, Carl Stahle, Robert J. Hill, Matthew Greenhouse, James Beletic, Sachidananda Babu, Peter Blake, Keith Cleveland, Emmanuel Cofie, Bente Eegholm, C. W. Engelbracht, Donald N. B. Hall, Alan Hoffman, Basil Jeffers, Christine Jhabvala, Randy A. Kimble, Stanley Kohn, Robert Kopp, Don Lee, Henning Leidecker, Don Lindler, Robert E. McMurray Jr., Karl Misselt, D. Brent Mott, Raymond Ohl, Judith L. Pipher, Eric Piquette, Dan Polis, Jim Pontius, Marcia Rieke, Roger Smith, W. E. Tennant, Liqin Wang, Yiting Wen, Christopher N. A. Willmer, Majid Zandian   +35 more
doaj   +1 more source

How Dark the Sky: The JWST Backgrounds

Publications of the Astronomical Society of the Pacific, 2023
Abstract We describe the sources of stray light and thermal background that affect JWST observations, report actual backgrounds as measured from commissioning and early-science observations, compare these background levels to prelaunch predictions, estimate the impact of the backgrounds on science performance, and explore how the ...
Jane R. Rigby, Paul A. Lightsey, Macarena García Marín, Charles W. Bowers, Erin C. Smith, Alistair Glasse, Michael W. McElwain, George H. Rieke, Ranga-Ram Chary, Xiang (Cate) Liu, Mark Clampin, Randy A. Kimble, Wayne Kinzel, Vicki Laidler, Kimberly I. Mehalick, Alberto Noriega-Crespo, Irene Shivaei, Dennis Skelton, Christopher Stark, Tea Temim, Zongying Wei, Chris J. Willott   +21 more
openaire   +3 more sources