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Advances in Edge Sensors for the Thirty Meter Telescope Primary Mirror
Extremely Large Telescopes edge sensors segmented mirrors
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2015/5/12
The primary mirror segments are passively constrained in the three lateral degrees of freedom. We evaluate the segment
lateral motions due to the changing gravity vector and temperature, using site ...
Design of a Prototype Primary Mirror Segment Positioning Actuator for the Thirty Meter Telescope
TMT actuator control system
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2015/5/12
In order for the Thirty Meter Telescope (TMT) to achieve the required optical performance, each of its 738 primary
mirror segments must be positioned relative to adjacent segments with nanometer-lev...
The Thirty Meter Telescope project will design and build a thirty-meter diameter telescope for research in astronomy at
optical and infrared wavelengths. The highly segmented primary mirror will use...
Control and support of 4-meter class secondary and tertiary mirrors for the Thirty Meter Telescope
Mirror support articulation figure contro
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2015/5/12
The Thirty Meter Telescope (TMT) project is a partnership between ACURA, AURA, Caltech, and the University of
California. The design calls for a 3.6 m diameter secondary mirror and an elliptical ter...
Development of the Primary Mirror Segment Support Assemblies for the Thirty Meter Telescope
TMT segment mirror support
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2015/5/12
This paper describes the studies performed to establish a baseline conceptual design of the Segment Support Assembly (SSA) for the Thirty Meter Telescope (TMT) primary mirror. The SSA uses a combinat...
Primary Mirror Segmentation Studies for the Thirty Meter Telescope
mirror segment segmentation
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2015/5/12
The Thirty Meter Telescope (TMT) project, a partnership between ACURA, Caltech, and the University of California, is
currently developing a 30-meter diameter optical telescope. The primary mirror wi...
Advancement of the Segment Support System for the Thirty Meter Telescope Primary Mirror
telescope mirror segment
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2015/5/12
This paper presents refinements to the design of the TMT primary mirror segment passive-support system that are
effective in reducing gravity print-through and thermal distortion effects. First, a no...
Use of requirements engineering within the Thirty Meter Telescope project
TMT system engineering requirements
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2015/5/12
The Thirty Meter Telescope is comprised of thirty five individual sub-systems which include optical systems, instruments, adaptive optics systems, controls, mechanical systems, supporting software and...
The Apparent Host Galaxy of PKS 1413+135: Hubble Space Telescope,* ASCA, and Very Long Baseline Array ** Observations
HST ASCA
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2014/12/26
PKS 1413+135 (z = 0.24671) is one of very few radio-loud active galactic nuclei (AGNs) with an apparent spiral host galaxy. Previous authors have attributed its nearly exponential infrared cutoff to h...
A Two Micron All Sky Survey view of the Sagittarius dwarf galaxy. II. Swope telescope spectroscopy of M giant stars in the dynamically cold Sagittarius tidal stream
kinematics halo
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2014/12/24
We have obtained moderate resolution (~6 km s-1) spectroscopy of several hundred M giant candidates selected from Two Micron All Sky Survey photometry. Radial velocities are presented for stars mainly...
THE HUBBLE SPACE TELESCOPE WIDE FIELD CAMERA 3 EARLY RELEASE SCIENCE DATA: PANCHROMATIC FAINT OBJECT COUNTS FROM 0.2{2 MICRONS WAVELENGTH
Galactic stars counts the galaxy counts
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2014/12/22
We describe the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) Early Re- lease Science (ERS) observations in the Great Observatories Origins Deep Survey (GOODS) South eld. The new WFC3 ERS d...
Science drivers and requirements for an Advanced Technology Large Aperture Space Telescope (ATLAST): implications for technology development and synergies with other future facilities
Galaxy Large-Aperture Space Telescope
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2014/12/22
The Advanced Technology Large-Aperture Space Telescope (ATLAST) is a concept for an 8-meter to 16-meter UVOIR space observatory for launch in the 2025-2030 era. ATLAST will allow astronomers to answer...
We present the highest redshift detections of resolved Ly emission, using Hubble Space Telescope/ACS F658N narrowband-imaging data taken in parallel with the Wide Field Camera 3 Early Release Science...
SUPERNOVA REMNANTS AND THE INTERSTELLAR MEDIUM OF M83: IMAGING AND PHOTOMETRY WITH THE WIDE FIELD CAMERA 3 ON THE HUBBLE SPACE TELESCOPE
supernova star-forming galaxy M83
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2014/12/20
We present Wide Field Camera 3 images taken with the Hubble Space Telescope within a single field in the southern grand design star-forming galaxy M83. Based on their size, morphology, and photometry ...
The LTHE LUMINOSITY, MASS, AND AGE DISTRIBUTIONS OF COMPACT STAR CLUSTERS IN M83 BASED ON HUBBLE SPACE TELESCOPE/WIDE FIELD CAMERA 3 OBSERVATIONS
filters binning
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2014/12/20
The newly installed Wide Field Camera 3 (WFC3) on the Hubble Space Telescope has been used to obtain multi-band images of the nearby spiral galaxy M83. These new observations are the deepest and highe...