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The Observatory for Multi-Epoch Gravitational Lens Astrophysics (OMEGA)
Leonidas A Moustakas, Adam J Bolton, Jeffrey T Booth +15
(abridged) The Observatory for Multi-Epoch Gravitational Lens Astrophysics (OMEGA) is a mission concept for a 1.5-m near-UV through near-IR space observatory that will be dedicated…
Spitzer IRS mapping of the central kpc of Centaurus A
Alice C. Quillen, Joss Bland-Hawthorn, Joel Green +6
We report on the results of infrared spectroscopic mapping observations carried out in the nuclear region of Centaurus A (NGC5128). The 500 pc bipolar dust shell discovered by Quil…
Joint Bayesian component separation and CMB power spectrum estimation
H. K. Eriksen, J. B. Jewell, C. Dickinson +3
We describe and implement an exact, flexible, and computationally efficient algorithm for joint component separation and CMB power spectrum estimation, building on a Gibbs sampling…
Spitzer Observations of Powerful Radio Sources
Kieran Cleary, Charles R. Lawrence, Jason A. Marshall +2
We have measured the mid-infrared radiation from an orientation-unbiased sample of powerful 3C RR galaxies and quasars using the IRS and MIPS instruments aboard the Spitzer Space T…
ExoPTF Science Uniquely Enabled by Far-IR Interferometry: Probing the Formation of Planetary Systems, and Finding and Characterizing Exoplanets
David Leisawitz, Tom Armstrong, Chad Bender +28
By providing sensitive sub-arcsecond images and integral field spectroscopy in the 25 - 400 micron wavelength range, a far-IR interferometer will revolutionize our understanding of…
Making Maps from Planck LFI 30GHz Data
M. A. J. Ashdown, C. Baccigalupi, A. Balbi +16
This paper is one of a series describing the performance and accuracy of map-making codes as assessed by the Planck CTP working group. We compare the performance of multiple codes…
Spitzer Observations of 3C Quasars and Radio Galaxies: Mid-Infrared Properties of Powerful Radio Sources
K. Cleary, C. R. Lawrence, J. A. Marshall +2
We have measured mid-infrared radiation from an orientation-unbiased sample of 3CRR galaxies and quasars at redshifts 0.4 < z < 1.2 with the IRS and MIPS instruments on the Spitzer…
Making sky maps from Planck data
M. A. J. Ashdown, C. Baccigalupi, A. Balbi +15
We compare the performance of multiple codes written by different groups for making polarized maps from Planck-sized, all-sky cosmic microwave background (CMB) data. Three of the c…
Bayesian foreground analysis with CMB data
H. K. Eriksen, C. Dickinson, C. R. Lawrence +6
The quality of CMB observations has improved dramatically in the last few years, and will continue to do so in the coming decade. Over a wide range of angular scales, the uncertain…
Discovery of a 500 pc shell in the nucleus of Centaurus A
Alice C. Quillen, Joss Bland-Hawthorn, Mairi H. Brookes +5
Spitzer Space Telescope mid-infrared images of the radio galaxy Centaurus A reveal a shell-like, bipolar, structure 500 pc to the north and south of the nucleus. This shell is seen…
Spitzer observations of the dusty warped disk of Centaurus A
Alice C. Quillen, Mairi H. Brookes, Jocelyn Keene +3
Spitzer mid-infrared images of the dusty warped disk in the galaxy Centaurus A show a parallelogram-shaped structure. We successfully model the observed mid-infrared morphology by…
Silicate Emission in the Spitzer IRS spectrum of FSC 10214+4724
H. I. Teplitz, L. Armus, B. T. Soifer +12
We present the first MIR spectrum of the z=2.2856 ultraluminous, infrared galaxy FSC 10214+4724, obtained with the Infrared Spectrograph onboard the Spitzer Space Telescope. The sp…
Spitzer Observations of Centaurus A: Infrared Synchrotron Emission from the Northern Lobe
M. H. Brookes, C. R. Lawrence, J. Keene +4
We present measurements obtained with the Spitzer Space Telescope in five bands from 3.6-24 microns of the northern inner radio lobe of Centaurus A, the nearest powerful radio gala…
CMB component separation by parameter estimation
H. K. Eriksen, C. Dickinson, C. R. Lawrence +9
We propose a solution to the CMB component separation problem based on standard parameter estimation techniques. We assume a parametric spectral model for each signal component, an…
The Infrared Spectrograph on the Spitzer Space Telescope
J. R. Houck, the Spitzer/IRS team
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 ran…
A Map of the Cosmic Microwave Background from the BEAST Experiment
Peter R. Meinhold, Marco Bersanelli, Jeffrey Childers +24
We present the first sky maps from the BEAST (Background Emission Anisotropy Scanning Telescope) experiment. BEAST consists of a 2.2 meter off axis Gregorian telescope fed by a cry…
The Redshift of the Lensed Object in the Einstein Ring B0218+357
Judith G. Cohen, Charles R. Lawrence, Roger D. Blandford
We present a secure redshift of z=0.944\pm0.002 for the lensed object in the Einstein ring gravitational lens B0218+357 based on five broad emission lines, in good agreement with o…
Probing the Invisible Universe: The Case for Far-IR/Submillimeter Interferometry
D. Leisawitz, T. Armstrong, D. Benford +25
The question "How did we get here and what will the future bring?" captures the human imagination and the attention of the National Academy of Science's Astronomy and Astrophysics…
2016+112: A Gravitationally Lensed Type-II Quasar
L. V. E. Koopmans, M. A. Garrett, R. D. Blandford +3
A single-screen model of the gravitational lens system 2016+112 is proposed, that explains recent Hubble Space Telescope} (HST) infrared (NICMOS-F160W) observations and new high-re…
Chandra measurements of 3C 220.1's X-ray core and cluster
D. M. Worrall, M. Birkinshaw, M. J. Hardcastle +1
We report results of an 18 ks exposure with the ACIS instrument on Chandra of the powerful z = 0.62 radio galaxy 3C 220.1. The X-ray emission separates into cluster gas of emission…
What have we already learned from the CMB?
Charles R. Lawrence, Douglas Scott, Martin White
The COBE satellite, and the DMR experiment in particular, was extraordinarily successful. However, the DMR results were announced about 7 years ago, during which time a great deal…
A Measurement of Anisotropy in the Cosmic Microwave Background on 7-22 Arcminute Scales
E. M. Leitch, A. C. S. Readhead, T. J. Pearson +3
We report a measurement of anisotropy in the cosmic microwave background radiation (CMBR) on 7-22 arcminute scales. Observations of 36 fields near the North Celestial Pole (NCP) we…
Extended and compact X-ray emission from the powerful radio galaxy 3C220.1
M. J. Hardcastle, C. R. Lawrence, D. M. Worrall
We report on ROSAT HRI observations of the z=0.61 radio galaxy 3C220.1. The X-ray emission from this object consists of an extended component, which we attribute to luminous cluste…
Direct Imaging of the CMB from Space
Michael A. Janssen, Douglas Scott, Martin White +14
Fundamental information about the Universe is encoded in anisotropies of the Cosmic Microwave Background (CMB) radiation. To make full use of this information, an experiment must i…