Results 41 to 50 of about 431,109 (228)

Exploring the Distant Universe With the Spitzer Space Telescope [PDF]

AIP Conference Proceedings, 2004
The infrared Spitzer Space Telescope is the last of NASA’s Great Observatories. Highlights of the first results from the Infrared Spectrograph (IRS) Extragalactic Team are given. The main focus of this paper is a demonstration of the unprecedented sensitivity of the IRS, which makes observations of distant, dust enshrouded galaxies possible.
Higdon, Sarah J. U., Higdon, James L., Weedman, Dan, Houck, James R., Soifer, B. T., Armus, Lee, Charmandaris, Vassilis, Herter, Terry L.   +7 more
openaire   +4 more sources

The Nature and Origins of Sub‐Neptune Size Planets

Journal of Geophysical Research: Planets, Volume 126, Issue 1, January 2021., 2021
Abstract Planets intermediate in size between the Earth and Neptune, and orbiting closer to their host stars than Mercury does the Sun, are the most common type of planet revealed by exoplanet surveys over the last quarter century. Results from NASA's Kepler mission have revealed a bimodality in the radius distribution of these objects, with a relative
Jacob L. Bean, Sean N. Raymond, James E. Owen   +2 more
wiley   +1 more source

A survey of Karin cluster asteroids with the Spitzer Space Telescope [PDF]

Icarus, 2009
Abstract The Karin cluster is one of the youngest known families of main-belt asteroids, dating back to a collisional event only 5.8 ± 0.2 Myr ago. Using the Spitzer Space Telescope we have photometrically sampled the thermal continua (3.5–22 μm) of 17 Karin cluster asteroids of different sizes, down to the smallest members discovered so ...
Harris, A.W., Mueller, M., Lisse, C.M., Cheng, A.F.   +3 more
openaire   +3 more sources

CEERS Key Paper. V. Galaxies at 4 < z < 9 Are Bluer than They Appear–Characterizing Galaxy Stellar Populations from Rest-frame ∼1 μm Imaging

The Astrophysical Journal Letters, 2023
We present results from the Cosmic Evolution Early Release Survey on the stellar population parameters for 28 galaxies with redshifts 4 < z < 9 using imaging data from the James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) combined with ...
Casey Papovich, Justin W. Cole, Guang Yang, Steven L. Finkelstein, Guillermo Barro, Véronique Buat, Denis Burgarella, Pablo G. Pérez-González, Paola Santini, Lise-Marie Seillé, Lu Shen, Pablo Arrabal Haro, Micaela B. Bagley, Eric F. Bell, Laura Bisigello, Antonello Calabrò, Caitlin M. Casey, Marco Castellano, Katherine Chworowsky, Nikko J. Cleri, Luca Costantin, M. C. Cooper, Mark Dickinson, Henry C. Ferguson, Adriano Fontana, Mauro Giavalisco, Andrea Grazian, Norman A. Grogin, Nimish P. Hathi, Benne W. Holwerda, Taylor A. Hutchison, Jeyhan S. Kartaltepe, Lisa J. Kewley, Allison Kirkpatrick, Dale D. Kocevski, Anton M. Koekemoer, Rebecca L. Larson, Arianna S. Long, Ray A. Lucas, Laura Pentericci, Nor Pirzkal, Swara Ravindranath, Rachel S. Somerville, Jonathan R. Trump, Stephanie M. Urbano Stawinski, Benjamin J. Weiner, Stephen M. Wilkins, L. Y. Aaron Yung, Jorge A. Zavala   +48 more
doaj   +1 more source

Submillimeter Detections of Spitzer Space Telescope Galaxy Populations [PDF]

The Astrophysical Journal Supplement Series, 2004
Accepted for ApJS Spitzer Special Issue.
Herve Dole, Herve Dole, Jane R. Rigby, Pauline Barmby, Satoshi Miyazaki, Jane E. Morrison, C. Papovich, Angela M. J. Mortier, George H. Rieke, E. Le Floc'h, J.-S. Huang, Pablo G. Pérez-González, Charles W. Engelbracht, Dean C. Hines, Dean C. Hines, Gillian Wilson, Giovanni G. Fazio, L. Bei, Stephen Serjeant, Thomas R. Greve, Karl Misselt, A. Alonso-Herrero, Rob Ivison, Eiichi Egami, Marcia J. Rieke, D. Rigopoulou, S. P. Willner, Karl D. Gordon   +27 more
openaire   +4 more sources

Deep Spitzer/IRAC Data for z ∼ 10 Galaxies Reveal Blue Balmer Break Colors: Young Stellar Populations at ∼500 Myr of Cosmic Time

The Astrophysical Journal, 2023
We present the deepest constraints yet on the median rest-UV+optical spectral energy distribution (SED) of z ∼ 10 galaxies prior to James Webb Space Telescope science operations.
Mauro Stefanon, Rychard J. Bouwens, Ivo Labbé, Garth D. Illingworth, Valentino Gonzalez, Pascal A. Oesch   +5 more
doaj   +1 more source

Dust Disks Around Young Stellar Objects [PDF]

Journal of Astronomy and Space Sciences, 2016
To reproduce the spectral energy distributions (SEDs) of young stellar objects (YSOs), we perform radiative transfer model calculations for the circumstellar dust disks with various shapes and many dust species.
Kyung-Won Suh
doaj   +1 more source

Novel Deep Level Image State Ensemble Enhancement Method for M87 Imaging

Applied Sciences, 2020
Standard spatial domain filters fail to adequately denoise and enhance the contrast of an image. These filters have drawbacks like oversmoothing, diminished texture, and lack of generative capabilities.
Timothy Ryan Taylor, Chun-Tang Chao, Juing-Shian Chiou   +2 more
doaj   +1 more source

Direct HST Dust Lane Detection in Powerful Narrow-Line Radio Galaxies

Frontiers in Astronomy and Space Sciences, 2017
We present the analysis of near-infrared Hubble Space Telescope imaging of 10 Fanaroff Riley II powerful radio galaxies at low redshift (0.03 < z < 0.11) optically classified as narrow-line radio galaxies.
Edgar A. Ramírez, Itziar Aretxaga, Clive N. Tadhunter, Enrique Lopez-Rodriguez, Enrique Lopez-Rodriguez, Enrique Lopez-Rodriguez, Chris Packham, Chris Packham   +7 more
doaj   +1 more source

Dust Properties of Comets Observed by Spitzer

The Planetary Science Journal, 2023
As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system.
David E. Harker, Diane H. Wooden, Michael S. P. Kelley, Charles E. Woodward   +3 more
doaj   +1 more source