Results 21 to 30 of about 3,801 (208)

Active galactic nuclei as seen by the Spitzer Space Telescope [PDF]

Nature Astronomy, 2020
Review article for the Nature Astronomy Spitzer ...
Mark Lacy, Anna Sajina
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Decomposition of the central structure of NGC 2273 in the NIR: A case study

Astronomische Nachrichten, Volume 344, Issue 10, December 2023., 2023
Abstract The Seyfert 2 galaxy NGC 2273 is a prime target to explore how active nuclei can be fed. It has a star‐forming innermost nuclear ring with a radius of 0.33kpc from where material may be funneled to the supermassive black hole in its center. In this article, we discuss high‐resolution adaptive optics aided JHKs images of NGC 2273 taken with the
L. Schey, J. Heidt, A. Pramskiy, D. Thompson, G. Agapito, S. Esposito, R. Gredel, D. Miller, E. Pinna, A. Puglisi, F. Rossi, W. Seifert, G. Taylor, A. Quirrenbach   +13 more
wiley   +1 more source

Spitzer IRS Observations of Titan as a Precursor to JWST MIRI Observations

The Planetary Science Journal, 2023
In this work, we present for the first time infrared spectra of Titan from the Spitzer Space Telescope (2004–2009). The data are from both the short wavelength–low resolution (SL; 5.13–14.29 μ m, R ∼ 60–127) and short wavelength–high resolution (SH; 9.89–
Brandon Park Coy, Conor A. Nixon, Naomi Rowe-Gurney, Richard Achterberg, Nicholas A. Lombardo, Leigh N. Fletcher, Patrick Irwin   +6 more
doaj   +1 more source

Evaluating the GeoSnap 13‐μ$$ \mu $$m cutoff HgCdTe detector for mid‐IR ground‐based astronomy

Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023
Abstract New mid‐infrared HgCdTe (MCT) detector arrays developed in collaboration with Teledyne Imaging Sensors (TIS) have paved the way for improved 10‐μ$$ \mu $$m sensors for space‐ and ground‐based observatories. Building on the successful development of longwave HAWAII‐2RGs for space missions such as NEO Surveyor, we characterize the first 13‐μ ...
Jarron M. Leisenring, Dani Atkinson, Rory Bowens, Vincent Douence, William F. Hoffmann, Michael R. Meyer, John Auyeung, James Beletic, Mario S. Cabrera, Alexandra Z. Greenbaum, Philip Hinz, Derek Ives, William J. Forrest, Craig W. McMurtry, Judith L. Pipher, Eric Viges   +15 more
wiley   +1 more source

Star Formation from Spitzer (Lyman) to Spitzer (Space Telescope) and Beyond [PDF]

Publications of the Astronomical Society of the Pacific, 2008
A summary of JENAM 2008 Symposium 9 "Star Formation from Spitzer (Lyman) to Spitzer (Space Telescope) and Beyond", held in Vienna, 10-12 September 2008.
Alves, João, Trimble, Virginia
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Improved data transfer efficiency for scale‐out heterogeneous workloads using on‐the‐fly I/O link compression

Concurrency and Computation: Practice and Experience, Volume 35, Issue 11, 15 May 2023., 2023
Summary Graphics processing units (GPUs) are unarguably vital to keep up with the perpetually growing demand for compute capacity of data‐intensive applications. However, the overhead of transferring data between host and GPU memory is already a major limiting factor on the single‐node level. The situation intensifies in scale‐out scenarios, where data
Max Plauth, Joan Bruguera Micó, Andreas Polze   +2 more
wiley   +1 more source

Suspending failure: temporalities, ontologies, and gigantism in fusion energy development

Journal of the Royal Anthropological Institute, Volume 29, Issue S1, Page 114-132, April 2023., 2023
Abstract Tracing the history of terrestrial fusion energy to a giant multinational experimental fusion facility under construction reveals a series of consequential failures, re‐evaluations of once defunct designs, but also persistence. To account for how this vast enterprise, dogged by failure, endures, I suggest that different ontological narratives ...
Catherine Alexander
wiley   +1 more source

The infrared spectrograph on the Spitzer Space Telescope [PDF]

SPIE Proceedings, 2004
The Infrared Spectrograph (IRS) is one of three science instruments on the Spitzer Space Telescope. The IRS comprises four separate spectrograph modules covering the wavelength range from 5.3 to 38 μm with spectral resolutions, R~90 and 650, and it was optimized to take full advantage of the very low background in the space environment.
James R. Houck, Thomas L. Roellig, Jeff Van Cleve, William J. Forrest, Terry L. Herter, Charles R. Lawrence, Keith Matthews, Harold J. Reitsema, B. T. Soifer, Dan M. Watson, Dan Weedman, Marty Huisjen, John R. Troeltzsch, Donald J. Barry, J. Bernard-Salas, Craig Blacken, Bernhard R. Brandl, Vassilis Charmandaris, Daniel Devost, George E. Gull, Peter Hall, Charles P. Henderson, S. James U. Higdon, Bruce E. Pirger, Justin Schoenwald, Greg C. Sloan, Keven I. Uchida, Philip N. Appleton, Lee Armus, Martin J. Burgdorf, Sergio B. Fajardo-Acosta, Carl J. Grillmair, Jim G. Ingalls, Patrick W. Morris, Harry I. Teplitz   +34 more
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PHANGS–JWST First Results: Duration of the Early Phase of Massive Star Formation in NGC 628

The Astrophysical Journal Letters, 2023
The earliest stages of star formation, when young stars are still deeply embedded in their natal clouds, represent a critical phase in the matter cycle between gas clouds and young stellar regions.
Jaeyeon Kim, Mélanie Chevance, J. M. Diederik Kruijssen, Ashley. T. Barnes, Frank Bigiel, Guillermo A. Blanc, Médéric Boquien, Yixian Cao, Enrico Congiu, Daniel A. Dale, Oleg V. Egorov, Christopher M. Faesi, Simon C. O. Glover, Kathryn Grasha, Brent Groves, Hamid Hassani, Annie Hughes, Ralf S. Klessen, Kathryn Kreckel, Kirsten L. Larson, Janice C. Lee, Adam K. Leroy, Daizhong Liu, Steven N. Longmore, Sharon E. Meidt, Hsi-An Pan, Jérôme Pety, Miguel Querejeta, Erik Rosolowsky, Toshiki Saito, Karin Sandstrom, Eva Schinnerer, Rowan J. Smith, Antonio Usero, Elizabeth J. Watkins, Thomas G. Williams   +35 more
doaj   +1 more source

On-orbit performance of the Spitzer Space Telescope [PDF]

SPIE Proceedings, 2004
The Spitzer Space Telescope (formally known as SIRTF) was successfully launched on August 25, 2003, and has completed its initial in-orbit checkout and science validation and calibration period. The measured performance of the observatory has met or exceeded all of its high-level requirements, it has entered normal operations, and is beginning to ...
Roellig, Thomas, Werner, Michael, Gallagher, David, Irace, William, Fazio, Giovanni, Houck, James, Rieke, George, Wilson, Robert, Soifer, Thomas   +8 more
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