Results 11 to 20 of about 431,109 (228)

The Spitzer Space Telescope Mission [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2004
The Spitzer Space Telescope, NASA's Great Observatory for infrared astronomy, was launched 2003 August 25 and is returning excellent scientific data from its Earth-trailing solar orbit. Spitzer combines the intrinsic sensitivity achievable with a cryogenic telescope in space with the great imaging and spectroscopic power of modern detector arrays to ...
Peter R. Eisenhardt   +25 more
openaire   +4 more sources

The Infrared Spectrograph (IRS) on the Spitzer Space Telescope [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2004
Accepted in ApJ Sup.
Houck, J. R.   +34 more
openaire   +6 more sources

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

open access: yesNature Astronomy, 2020
Review article for the Nature Astronomy Spitzer ...
Mark Lacy, Anna Sajina
openaire   +4 more sources

On-orbit performance of the Spitzer Space Telescope: science meets engineering [PDF]

open access: yesJournal of Astronomical Telescopes, Instruments, and Systems, 2022
The Spitzer Space Telescope operated for over 16 years in an Earth-trailing solar orbit, returning not only a wealth of scientific data but, as a by-product, spacecraft and instrument engineering data which will be of interest to future mission planners.
Werner, Michael W.   +6 more
openaire   +5 more sources

In-flight performance and calibration of the Infrared Array Camera (IRAC) for the Spitzer Space Telescope [PDF]

open access: greenProc.SPIEInt.Soc.Opt.Eng.5487:77-92,2005, 2004
The Infrared Array Camera (IRAC) is one of three focal plane instruments on board the Spitzer Space Telescope. IRAC is a four-channel camera that obtains simultaneous broad-band images at 3.6, 4.5, 5.8, and 8.0 microns in two nearly adjacent fields of view. We summarize here the in-flight scientific, technical, and operational performance of IRAC.
Joseph L. Hora   +42 more
openalex   +2 more sources

The Nature of Faint 24 Micron Sources Seen in Spitzer Space Telescope Observations of ELAIS‐N1 [PDF]

open access: bronze, 2004
The Spitzer Space Telescope has undertaken the deepest ever observations of the 24 micron sky in the ELAIS-N1 field as part of GOODS Science Verification observations. We present the shape of the 24 micron source counts in the flux range 20-1000 microJy, discuss the redshift distribution and nature of these sources with particular emphasis on their ...
Ranga‐Ram Chary   +9 more
openalex   +2 more sources

Astrophysical Distance Scale. VII. A Self-consistent, Multiwavelength Calibration of the Slopes and Relative Zero Points for the Run of Luminosity with the Color of Stars Defining the Tip of the Red Giant Branch

open access: yesThe Astronomical Journal, 2023
Given the recent successful launch of the James Webb Space Telescope, determining robust calibrations of the slopes and absolute magnitudes of the near- to mid-infrared tip of the red-giant branch (TRGB) will be essential to measuring precise ...
Barry F. Madore   +2 more
doaj   +1 more source

Decomposition of the central structure of NGC 2273 in the NIR: A case study

open access: yesAstronomische 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   +13 more
wiley   +1 more source

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

open access: yesAstronomische 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   +15 more
wiley   +1 more source

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

open access: yesThe 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   +6 more
doaj   +1 more source

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