Results 101 to 110 of about 3,030,245 (218)

SOFIA: Stratospheric Observatory for Infrared Astronomy [PDF]

, 2007
This viewgraph presentation reviews the Stratospheric Observatory for Infrared Astronomy (SOFIA). The contents include: 1) Heritage & History; 2) Level 1 Requirements; 3) Top Level Overview of the Observatory; 4) Development Challenges; and 5) Highlight ...
Kunz, Nans, Bowers, Al, Becker, Eric
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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

Characterizing Photonic Ring Resonator Filters for OH Suppressed Near-infrared Astronomy

Supernova cosmology relies on accurate measurement of the absolute magnitudes of Type Ia supernovae. Observation in the visible incurs significant systematic uncertainties in these measurements due to their high degree of interstellar dust extinction.
Hermann, A., Lasker, J., Vaisakh, R., Kehoe, R., Staten, R., Wallace, A., Ellis, S., Kuehn, K., Kuhlmann, S.   +8 more
openaire   +2 more sources

Theoretical investigation of measuring cerebral blood flow in the adult human head using bolus indocyanine green injection and near-infrared spectroscopy [PDF]

, 2007
To investigate the accuracy of measuring cerebral blood flow (CBF) using a bolus injection of indocyanine green (ICG) detected by near infrared spectroscopy in adult human heads, simulations were performed using a two layered model, representing the ...
Tachtsidis, I, Tachtsidis, I., Delpy, D., Tisdall, M, Leung, T., Smith, M., Elwell, CE, Elwell, C., Delpy, DT, Tisdall, M., Leung, TS, Smith, M   +11 more
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A Cometary Fluorescence Model for the ν3 Vibrational Band of Cyanogen

The Astrophysical Journal
Cyanogen (C _2 N _2 ) has been suspected for a long time to be present in comets and to contribute to the creation of the CN radical. So far no observations with ground-based facilities have managed to detect this species, but the Rosetta mission, thanks
P. Hardy, P. Rousselot, C. Richard, V. Boudon, X. Landsheere, A. Voute, L. Manceron, F. Kwabia Tchana   +7 more
doaj   +1 more source

The NIRISS PASSAGE Spectroscopic Redshift Catalog in COSMOS

The Astrophysical Journal Supplement Series
We present the Parallel Application of Slitless Spectroscopy to Analyze Galaxy Evolution (PASSAGE) spectroscopic redshift catalog in the COSMOS field.
Mason S. Huberty, Kalina V. Nedkova, Zahra Sattari, Vihang Mehta, Claudia Scarlata, Marc Rafelski, Matthew J. Hayes, Peter J. Watson, Ayan Acharyya, Jacob Levine, Benedetta Vulcani, Alexandra Le Reste, Farhanul Hasan, James Colbert, Michele Trenti, Xin Wang, Axel Runnholm, Matthew A. Malkan, Andrew J. Bunker, Anahita Alavi, Hakim Atek, Andrew J. Battisti, Y. Sophia Dai, Keunho Kim, Alaina Henry, Michael J. Rutkowski, Hollis Akins, Caitlin M. Casey, Maximilien Franco, Santosh Harish, Jeyhan S. Kartaltepe, Anton Koekemoer, Daizhong Liu, Henry McCracken, Jason Rhodes, Brant Robertson, Marko Shuntov   +36 more
doaj   +1 more source

Beyond the Dot: An LRD-like Nucleus at the Heart of an IR-bright Galaxy and its Implications for High-redshift LRDs

The Astrophysical Journal
Little red dots (LRDs) are compact, red sources discovered by JWST at high redshift ( z  ≳ 4), marked by distinctive “V-shaped” spectral energy distributions (SEDs) and often interpreted as rapidly accreting active galactic nuclei (AGNs).
Pierluigi Rinaldi, George H. Rieke, Zihao Wu, Carys J. E. Gilbert, Fabio Pacucci, Luigi Barchiesi, Stacey Alberts, Stefano Carniani, Andrew J. Bunker, Rachana Bhatawdekar, Francesco D’Eugenio, Zhiyuan Ji, Benjamin D. Johnson, Kevin Hainline, Vasily Kokorev, Nimisha Kumari, Edoardo Iani, Jianwei Lyu, Roberto Maiolino, Eleonora Parlanti, Brant E. Robertson, Yang Sun, Cristian Vignali, Christina C. Williams, Christopher N. A. Willmer, Yongda Zhu   +25 more
doaj   +1 more source

Infrared Astronomy

This website from NASA's Infrared Astrophysics Data Center describes: the discovery of infrared waves; what infrared waves are and how they are used in astronomy; atmospheric windows; near, middle, and far infrared; the infrared universe; and infrared ...
Linda Hermans-Killam
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Laboratory Spectral Characterization of Ribbeck Aubrite: Meteorite Sample of Earth-impacting Near-Earth Asteroid 2024 BX1

The Planetary Science Journal
Characterization of near-Earth objects (NEOs) is critical for Earth-impact hazard assessment. Particularly crucial to our physical understanding of NEOs are laboratory spectral measurements of meteorites as they are the best and most widely available ...
David C. Cantillo, Kaycee I. Ridenhour, Adam Battle, Thomas Joyce, Juliana Nunez Breceda, Neil Pearson, Vishnu Reddy   +6 more
doaj   +1 more source

Cool Cosmos: Infrared Astronomy Tutorial

, 2009
This Web site includes the following sections: Discovery of Infrared; What is Infrared?; Infrared Astronomy; Atmospheric Windows; Near, Mid & Far Infrared; IR Astronomy Timeline; Background & Technology; The Infrared Universe; Infrared Spectroscopy; News
NASA IPAC/CALTECH
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