The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
The Infrared Array Camera (IRAC) is one of three focal plane instruments on the Spitzer Space Telescope. IRAC is a four-channel camera that obtains simultaneous broadband images at 3.6, 4.5, 5.8, and…
Absolute Calibration of the Infrared Array Camera on the Spitzer Space Telescope
- W. Reach, S. Megeath, G. Fazio
- Physics
- 6 July 2005
The Infrared Array Camera (IRAC) on the Spitzer Space Telescope is absolutely calibrated by comparing photometry of a set of A stars near the north ecliptic pole to predictions based on ground‐based…
Spitzer IRAC Photometry of M, L, and T Dwarfs
- B. Patten, J. Stauffer, G. Fazio
- Physics, Geology
- 18 June 2006
We present the results of a program to acquire photometry for 86 late M, L, and T dwarfs using the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We examine the behavior of these cool…
New Infrared Emission Features and Spectral Variations in NGC 7023
- M. Werner, K. Uchida, J. Stansberry
- Physics
- 11 July 2004
We observed the reflection nebula NGC 7023, with the Short-High module and the long-slit Short-Low and Long-Low modules of the Infrared Spectrograph on the Spitzer Space Telescope. We also present…
Discovery of Two T Dwarf Companions with the Spitzer Space Telescope
We report the discovery of T dwarf companions to the nearby stars HN Peg (G0 V, 18.4 pc, τ ~ 0.3 Gyr) and HD 3651 (K0 V, 11.1 pc, τ ~ 7 Gyr). During an ongoing survey of 5′ × 5′ fields surrounding…
Outflows from Massive Young Stellar Objects as Seen with the Infrared Array Camera
- H. Smith, J. Hora, M. Marengo, J. Pipher
- Physics
- 15 March 2006
The bipolar outflow from the massive star-forming cluster in DR 21 is one of the most powerful known, and in IRAC images the outflow stands out by virtue of its brightness at 4.5 μm (band 2). Indeed,…
Chandra Discovery of a Tree in the X-Ray Forest toward PKS 2155–304: The Local Filament?
- F. Nicastro, A. Zezas, S. Bianchi
- Physics
- 4 January 2002
We present the first X-ray detection of resonant absorption from warm/hot local gas either in our Galaxy, or in the intergalactic space surrounding our Galaxy, along the line of sight toward the…
UBVRI Light Curves of 44 Type Ia Supernovae
- S. Jha, R. Kirshner, K. Stanek
- Physics
- 8 September 2005
We present UBVRI photometry of 44 Type Ia supernovae (SNe Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the…
The Vega Debris Disk: A Surprise from Spitzer
We present high spatial resolution mid- and far-infrared images of the Vega debris disk obtained with the Multiband Imaging Photometer for Spitzer (MIPS). The disk is well resolved, and its angular…
First Look at the Fomalhaut Debris Disk with the Spitzer Space Telescope
- K. Stapelfeldt, E. K. Holmes, E. Young
- Physics, Geology
- 1 September 2004
We present Spitzer Space Telescope early release observations of Fomalhaut, a nearby A-type star with dusty circumstellar debris. The disk is spatially resolved at 24, 70, and 160 μm using the…
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