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Publication > Research Gallery > AMiBA

Research Gallery

The Yuan Tseh Lee Array for Microwave Background Anisotropy

Clock Distribution Drawer for YTLA Clock Distribution Drawer for YTLA
Clock Distribution Drawer ...(more)
The first phase of AMiBA consisted of seven 0.6m antennas close-packed in the center of the 6m platfor The first phase of AMiBA consisted of seven 0.6m antennas close-packed in the center of the 6m platfor
The first phase of AMiBA consisted of seven 0.6m antennas close-packed in the center of the 6m platform, offering a field-of-view of 23’ and a resolution of 6’. Scientific observations ...(more)
The first SZE signal with the 7-element AMiBA The first SZE signal with the 7-element AMiBA
Cleaned SZE images of clusters observed by seven-element AMiBA. The white circles indicate the half-maximum contour of the primary beam (the field of view; 23'), and the blue patches at ...(more)
The Subaru weak lensing mass map (white contour) is overlaid on top of the AMiBA SZE measurement (color map) for the cluster Abell 2142 The Subaru weak lensing mass map (white contour) is overlaid on top of the AMiBA SZE measurement (color map) for the cluster Abell 2142
The Subaru weak lensing mass map (white contour) is overlaid on top of the AMiBA SZE measurement (color map) for the cluster Abell 2142. The open and filled black circles ...(more)
Combined with Subaru weak lensing measurements, the AMiBA SZE data can be used to derive gas mass fraction as a function of cluster radius Combined with Subaru weak lensing measurements, the AMiBA SZE data can be used to derive gas mass fraction as a function of cluster radius
Combined with Subaru weak lensing measurements, the AMiBA SZE data can be used to derive gas mass fraction as a function of cluster radius (Umetsu et al., 2009, ApJ, 694, ...(more)
A 2-element prototype system was tested on the Mauna Loa site from 2002 to 2004. A 2-element prototype system was tested on the Mauna Loa site from 2002 to 2004.
A 2-element prototype system was tested on the Mauna Loa site from 2002 to 2004. ...(more)
The AMiBA receiver with the vacuum chamber removed The AMiBA receiver with the vacuum chamber removed
The AMiBA receiver with the vacuum chamber removed (Chen et al., 2009, ApJ, 694, 1664). ...(more)
AMiBA dedication AMiBA dedication
AMiBA was dedicated in October 2006. The panel shows the gathering of team members and the Academy President Yuan-Tseh Lee at the dedication ceremony. ...(more)
AMiBA was dedicated in October 2006 AMiBA was dedicated in October 2006
AMiBA was dedicated in October 2006. The panel shows the gathering of team members and the Academy President Yuan-Tseh Lee at the dedication ceremony. ...(more)
The second phase of AMiBA consisting of thirteen 1.2m antennas was completed at the end of 2009 The second phase of AMiBA consisting of thirteen 1.2m antennas was completed at the end of 2009
The second phase of AMiBA consisting of thirteen 1.2m antennas was completed at the end of 2009. The 13-element array, with improved resolution and sensitivity, can be effectively study clusters ...(more)
AMiBA-13 SZE maps AMiBA-13 SZE maps
SZE maps of 8 clusters observed by AMiBA 13-element array. Size of each map is 12’x12’, slightly larger than the half-power width of the primary beam, shown as the large ...(more)
Prototype digital correlator for AMiBA Prototype digital correlator for AMiBA
A wideband digital correlator utilizing high-speed Analog-to-Digital Converters (ADCs) and Field Programmable Gate Arrays (FPGAs) was developed for the Array for Microwave Background Anisotropy (AMiBA). The objective is to detect ...(more)
Orion-KL observations using AMiBA prototype digital correlator Orion-KL observations using AMiBA prototype digital correlator
From observations of Orion-KL, the HCO+ and HCN lines were detected using the prototype digital correlator for AMiBA. ...(more)
Radio Frequency Translator Plate Radio Frequency Translator Plate
Photo of wideband radio frequency translator plate. Developed at the SMA project office by Derek Kubo and John Kuroda for the AMiBA digital correlator upgrade, this prototype plate provides signal ...(more)
1.2 m Shielded Cassegrain Antenna for Close-Packed Radio Interferometer 1.2 m Shielded Cassegrain Antenna for Close-Packed Radio Interferometer
Left: Contour plot of the antenna beam pattern measured in the far field. The units are in decibels. The cross-structure around the secondary sidelobes is likely to result from scattering ...(more)
AMiBA Operation AMiBA Operation
Another night on Mauna Loa ...(more)
AMiBA - stow position AMiBA - stow position
AMiBA - stow position ...(more)
AMiBA backend electronics AMiBA backend electronics
AMiBA backend electronics ...(more)
THE AMiBA HEXAPOD TELESCOPE MOUNT THE AMiBA HEXAPOD TELESCOPE MOUNT
General design of the AMiBA hexapod mount with its main components: support cone, jack screws, u-joints, and platform ...(more)
Sixty centi-meter Cassegrain antenna for AMiBA Sixty centi-meter Cassegrain antenna for AMiBA
Sixty centi-meter Cassegrain antenna for AMiBA. ...(more)
AMiBA-7 tSZE maps AMiBA-7 tSZE maps
Thermal Sunyaev-Zel'dovich effect (tSZE) images of six galaxy clusters observed with the 7-element AMiBA (AMiBA-7) in 2007. Figure taken and modified from Wu et al. 2009, ApJ, 694, 1619. ...(more)
A model Sunyaev-Zel'dovich effect (SZE) sky map A model Sunyaev-Zel'dovich effect (SZE) sky map
The figure demonstrates simulated deep AMiBA cluster surveys via the Sunyaev-Zel'dovich effect (SZE) based on N-body/Hydrodynamic simulations. The top-left panel shows a model SZ sky map, and the top-right panel ...(more)
Expected performance of AMiBA Expected performance of AMiBA
Expected performance of AMiBA with the initial configuration (seven 60cm dishes, close-packed) after 1 month of observations, as compared with other high-l CMB experiments such as ACBAR (2002) and CBI ...(more)
AMiBA on Mauna Loa, Hawaii AMiBA on Mauna Loa, Hawaii
AMiBA on Mauna Loa, Hawaii in September 2006. Seven 60-cm antennas, covered with GoreTex sun protection shields, form the most compact configuration on the carbon fiber platform. An optical telescope, ...(more)
Dedication ceremony of AMiBA Dedication ceremony of AMiBA
In the dedication ceremony of AMiBA held in Oct 2006, the NTU President S.C. Lee officially announced that the AMiBA is named as the “Yuan Tseh Lee Array for Microwave ...(more)
Photogrammetry survey Photogrammetry survey
Pictures of a number of targets on the platform are taken from the basket of a cherry picker, while the hexapod is driven to different elevations. Relative positions of the ...(more)
Jupiter imaged by 7-dish AMiBA Jupiter imaged by 7-dish AMiBA
Top: Strong fringes were obtained on Jupiter for all twenty one baselines of the 7-element configuration of the AMiBA, with the 60-cm dishes in the most compact configuration. For each ...(more)
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