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High Accuracy Near-infrared Imaging Polarimetry with NICMOS
D. Batcheldor, G. Schneider, D. C. Hines +5
The findings of a nine orbit calibration plan carried out during HST Cycle 15, to fully determine the NICMOS camera 2 (2.0 micron) polarization calibration to high accuracy, are re…
High Accuracy Imaging Polarimetry with NICMOS
D. Batcheldor, G. Schneider, D. C. Hines +5
The ability of NICMOS to perform high accuracy polarimetry is currently hampered by an uncalibrated residual instrumental polarization at a level of 1.2-1.5%. To better quantify an…
Formation and Evolution of Planetary Systems (FEPS): Properties of Debris Dust around Solar-type Stars
John M. Carpenter, Jeroen Bouwman, Eric E. Mamajek +12
We present Spitzer photometric (IRAC and MIPS) and spectroscopic (IRS low resolution) observations for 314 stars in the Formation and Evolution of Planetary Systems (FEPS) Legacy p…
Probing dust grain evolution in IM Lupi's circumstellar disc. Multi-wavelength observations and modelling of the dust disc
C. Pinte, D. L. Padgett, F. Menard +19
We present a panchromatic study, involving a multiple technique approach, of the circumstellar disc surrounding the T Tauri star IM Lupi (Sz 82). We have undertaken a comprehensive…
The Formation and Evolution of Planetary Systems: Description of the Spitzer Legacy Science Database
John M. Carpenter, Jeroen Bouwman, Murray D. Silverstone +6
We present the science database produced by the Formation and Evolution of Planetary Systems (FEPS) Spitzer Legacy program. Data reduction and validation procedures for the IRAC, M…
The Complete Census of 70-um-Bright Debris Disks within the FEPS (Formation and Evolution of Planetary Systems) Spitzer Legacy Survey of Sun-like Stars
Lynne A. Hillenbrand, John M. Carpenter, Jinyoung Serena Kim +7
(abbreviated) We report detection with the Spitzer Space Telescope of cool dust surrounding solar type stars. The observations were performed as part of the Legacy Science Program,…
Aromatic Features in AGN: Star-Forming Infrared Luminosity Function of AGN Host Galaxies
Yong Shi, Patrick Ogle, George H. Rieke +6
We describe observations of aromatic features at 7.7 and 11.3 um in AGN of three types including PG, 2MASS and 3CR objects. The feature has been demonstrated to originate predomina…
Absolute Calibration and Characterization of the Multiband Imaging Photometer for Spitzer. II. 70 micron Imaging
Karl D. Gordon, Charles W. Engelbracht, Dario Fadda +19
The absolute calibration and characterization of the Multiband Imaging Photometer for Spitzer (MIPS) 70 micron coarse- and fine-scale imaging modes are presented based on over 2.5…
An Investigation into the Effects of Luminosity on the Mid-Infrared Spectral Energy Distributions of Radio-Quiet Quasars
S. C. Gallagher, G. T. Richards, M. Lacy +3
We present an analysis of the effects of luminosity on the shape of the mid-infrared spectral energy distributions (SEDs) of 234 radio-quiet quasars originally presented by Richard…
The Formation and Evolution of Planetary Systems: Placing Our Solar System in Context with Spitzer
Michael R. Meyer, Lynne A. Hillenbrand, Dana Backman +32
We provide an overview of the Spitzer Legacy Program ``Formation and Evolution of Planetary Systems" (FEPS) which was proposed in 2000, begun in 2001, and executed aboard the Spitz…
Are Debris Disks and Massive Planets Correlated?
Amaya Moro-Martín, John M. Carpenter, Michael R. Meyer +13
Using data from the Spitzer Space Telescope Legacy Science Program ``Formation and Evolution of Planetary Systems'' (FEPS), we have searched for debris disks around 9 FGK stars (2-…
Thermal and Non-Thermal Infrared Emission from M87
Y. Shi, G. H. Rieke, D. C. Hines +2
We discuss images of M87 from 3.6 to 160 um obtained with Spitzer. As found previously, there is an excess in the far infrared over a simple power law interpolation from the radio…
Hubble Space Telescope Ultraviolet Spectroscopy of Fourteen Low-Redshift Quasars
Rajib Ganguly, Michael S. Brotherton, Nahum Arav +35
We present low-resolution ultraviolet spectra of 14 low redshift (z<0.8) quasars observed with HST/STIS as part of a Snap project to understand the relationship between quasar outf…
9.7 um Silicate Features in AGNs: New Insights into Unification Models
Y. Shi, G. H. Rieke, D. C. Hines +6
We describe observations of 9.7 um silicate features in 97 AGNs, exhibiting a wide range of AGN types and of X-ray extinction toward the central nuclei. We find that the strength o…
Probing the Evolution of IR Properties of z~6 Quasars: Spitzer Observations
Linhua Jiang, Xiaohui Fan, Dean C. Hines +14
We present Spitzer observations of thirteen z~6 quasars using the Infrared Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS). All the quasars except SDSS J000…
Formation and Evolution of Planetary Systems: Upper Limits to the Gas Mass in Disks Around Sun-like Stars
I. Pascucci, U. Gorti, D. Hollenbach +17
We have carried out a sensitive search for gas emission lines at infrared and millimeter wavelengths for a sample of 15 young sun-like stars selected from our dust disk survey with…
Spitzer Observations of High Redshift QSOs
D. C. Hines, O. Krause, G. H. Rieke +3
We have observed 13 z >= 4.5 QSOs using the Multiband Imaging Photometer for Spitzer, nine of which were also observed with the Infrared Array Camera. The observations probe rest w…
The NICMOS Polarimetric Calibration
D. Batcheldor, A. Robinson, D. Axon +3
The value of accurately knowing the absolute calibration of the polarizing elements in the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) becomes especially important…
Polarimetry with NICMOS
D. C. Hines, G. Schneider
NICMOS cameras 1 and 2 each carry a set of three polarizing elements to provide high sensitivity observations of linearly polarized light. The polarizers are bandpass limited and p…
Spectral Energy Distributions and Multiwavelength Selection of Type 1 Quasars
Gordon T. Richards, Mark Lacy, Lisa J. Storrie-Lombardi +14
We present an analysis of the mid-infrared (MIR) and optical properties of type 1 (broad-line) quasars detected by the Spitzer Space Telescope. The MIR color-redshift relation is c…
Formation and Evolution of Planetary Systems (FEPS): Primordial Warm Dust Evolution From 3-30 Myr around Sun-like Stars
M. D. Silverstone, M. R. Meyer, E. E. Mamajek +14
We present data obtained with the Infrared Array Camera (IRAC) aboard the Spitzer Space Telescope (Spitzer) for a sample of 74 young (t < 30 Myr old) Sun-like (0.7 < M(star)/M(Sun)…
The Formation and Evolution of Planetary Systems (FEPS): Discovery of an Unusual Debris System Associated with HD 12039
D. C. Hines, D. E. Backman, J. Bouwman +17
We report the discovery of a debris system associated with the Myr old G3/5V star HD 12039 using {\it Spitzer Space Telescope} observations from 3.6 -- 160m. An observ…
Young stars and dust in AFGL437: NICMOS/HST polarimetric imaging of an outflow source
Casey A. Meakin, Dean C. Hines, Roger I. Thompson
We present near infrared broad band and polarimetric images of the compact star forming cluster AFGL437 obtained with the NICMOS instrument aboard HST. Our high resolution images r…
Discovery of a Nearly Edge-On Disk Around HD 32297
Glenn Schneider, Murray D. Silverstone, Dean C. Hines
We report the discovery of a nearly edge-on disk about the A0 star HD 32297 seen in light scattered by the disk grains revealed in NICMOS PSF-subtracted coronagraphic images. The d…