SCUBA - Submillimetre common-user bolometer array for the James Clerk Maxwell telescope

1990 ◽  
Author(s):  
Colin R. Cunningham ◽  
Walter K. Gear
Keyword(s):  
James Clerk Maxwell ◽  
Bolometer Array ◽  
Common User

SCUBA: the submillimeter common-user bolometer array for the James Clerk Maxwell Telescope

1994 ◽  
Author(s):  
Colin R. Cunningham ◽  
Walter K. Gear ◽  
William Duncan ◽  
Peter R. Hastings ◽  
Wayne S. Holland
Keyword(s):  
James Clerk Maxwell ◽  
Bolometer Array ◽  
Common User

Prototype detector technology for the SCUBA-2 submillimetre bolometer array

2005 ◽  
Vol 219 (1) ◽  
pp. 11-21
Author(s):  
A. J. Walton ◽  
W Parkes ◽  
J. G. Terry ◽  
C Dunare ◽  
J. T. M. Stevenson ◽  
...  
Keyword(s):  
Flip Chip ◽  
Transition Edge Sensors ◽  
Ir Detector ◽  
James Clerk Maxwell ◽  
Bolometer Array ◽  
Incoming Radiation ◽  
Transition Edge ◽  
Prototype Detector ◽  
Common User ◽  
Careful Design

This paper reports the latest design and the associated fabrication technology of the Mk II prototype infrared (IR) detector for the two 5120 pixel SCUBA-2 (submillimetre common user bolometer arry) instruments, which are to be mounted on the James Clerk Maxwell telescope (JCMT) in Hawaii. Progress is described on the design and the technology modules being developed for the new detector, which is based upon silicon micromachining. The two arrays of transition edge sensors (TES) are used to detect incoming radiation with wavelengths of 450 and 850 μ respectively and as the SCUBA-2 detector operates at about 100 mK, it consequently involves integration with low-temperature electronics and careful design of the associated interconnect. A key aspect of the connection between the TES detector and readout electronics is the use of indium flip-chip bumps, which become superconducting at cryogenic temperatures. The integration of nanoscale membranes and transition edge sensors together with microsystem technology enables SCUBA-2 to have of the order of 10 -17W (1 Hz bandwidth) sensitivity to incoming radiation.

scholarly journals A millimetre/submillimetre common user photometer for the James Clerk Maxwell Telescope

1990 ◽  
Vol 243 (1) ◽  
pp. 126-132 ◽  
Author(s):  
W. D. Duncan ◽  
E. I. Robson ◽  
P. A. R. Ade ◽  
M. J. Griffin ◽  
G. Sandell
Keyword(s):  
James Clerk Maxwell ◽  
Common User

scholarly journals SCUBA: a common-user submillimetre camera operating on the James Clerk Maxwell Telescope

1999 ◽  
Vol 303 (4) ◽  
pp. 659-672 ◽  
Author(s):  
W. S. Holland ◽  
E. I. Robson ◽  
W. K. Gear ◽  
C. R. Cunningham ◽  
J. F. Lightfoot ◽  
...  
Keyword(s):  
James Clerk Maxwell ◽  
Common User

scholarly journals G133.50+9.01: a likely cloud–cloud collision complex triggering the formation of filaments, cores, and a stellar cluster

2020 ◽  
Vol 499 (3) ◽  
pp. 3620-3629
Author(s):  
Namitha Issac ◽  
Anandmayee Tej ◽  
Tie Liu ◽  
Yuefang Wu
Keyword(s):  
Cluster Formation ◽  
Observational Evidence ◽  
Young Stellar Objects ◽  
Molecular Line ◽  
Stellar Objects ◽  
Stellar Cluster ◽  
Dense Cores ◽  
Bolometer Array ◽  
Bona Fide ◽  
Common User

ABSTRACT We present compelling observational evidence of G133.50+9.01 being a bona fide cloud–cloud collision candidate with signatures of induced filament, core, and cluster formation. The CO molecular line observations reveal that the G133.50+9.01 complex is made of two colliding molecular clouds with systemic velocities, $\rm -16.9$ and $\rm -14.1\, km\, s^{-1}$. The intersection of the clouds is characterized by broad bridging features characteristic of collision. The morphology of the shocked layer at the interaction front resembles an arc-like structure with enhanced excitation temperature and H2 column density. A complex network of filaments is detected in the Submillimeter Common-User Bolometer Array 2 850 $\rm \mu m$ image with 14 embedded dense cores, all well correlated spatially with the shocked layer. A stellar cluster revealed through an overdensity of identified Classes I and II young stellar objects is found located along the arc in the intersection region corroborating with a likely collision induced origin.

scholarly journals Two sub-millimetre bright protoclusters bounding the epoch of peak star-formation activity

2019 ◽  
Vol 488 (2) ◽  
pp. 1790-1812 ◽  
Author(s):  
Kevin M Lacaille ◽  
Scott C Chapman ◽  
Ian Smail ◽  
C C Steidel ◽  
A W Blain ◽  
...  
Keyword(s):  
Star Formation ◽  
Field Surveys ◽  
Star Forming ◽  
James Clerk Maxwell ◽  
Bolometer Array ◽  
Star Formation Activity ◽  
Diameter Core ◽  
Dense Cluster ◽  
Cluster Cores ◽  
Number Counts

ABSTRACT We present James Clerk Maxwell Telescope Submillimetre Common-User Bolometer Array 2 (SCUBA-2) 850 and 450 $\mu$m observations (σ850 ∼ 0.5 mJy, σ450 ∼ 5 mJy) of the HS1549+19 and HS1700+64 survey fields containing two of the largest known galaxy overdensities at z = 2.85 and 2.30, respectively. We detect 56 sub-millimetre galaxies (SMGs) with SNR > 4 over ∼50 arcmin2 at 850 $\mu$m with flux densities of 3–17 mJy. The number counts indicate overdensities in the 3-arcmin diameter core region (∼1.5 Mpc at z = 2.5) of $6^{+4}_{-2}\times$ (HS1549) and $4^{+6}_{-2}\times$ (HS1700) compared to blank field surveys. Within these core regions, we spectroscopically confirm that approximately one-third of the SMGs lie at the protocluster redshifts for both HS1549 and HS1700. We use statistical identifications of other SMGs in the wider fields to constrain an additional four candidate protocluster members in each system. We combine multiwavelength estimates of the star-formation rates (SFRs) from Lyman-break dropout- and narrow-band-selected galaxies, and the SCUBA-2 SMGs, to estimate total SFRs of 12 500 ± 2800 M⊙ yr−1 (4900 ± 1200 M⊙ yr−1) in HS1549 (HS1700), and SFR densities (SFRDs) within the central 1.5-Mpc diameter of each protocluster to be 3000 ± 900 M⊙ yr−1 Mpc−3 (1300 ± 400 M⊙ yr−1 Mpc−3) in the HS1549 (HS1700) protocluster, ∼104 × larger than the global SFRDs found at their respective epochs, due to the concentration of star-forming galaxies in the small volume of the dense cluster cores. Our results suggest centrally concentrated starbursts within protoclusters may be a relatively common scenario for the build-up of mass in rich clusters assembling at z ≳ 2.

Submillimeter Polarimetry of the Protostellar Outflow Sources in Serpens with the Submillimeter Common-User Bolometer Array

2000 ◽  
Vol 530 (2) ◽  
pp. L115-L118 ◽  
Author(s):  
Christopher J. Davis ◽  
Antonio Chrysostomou ◽  
Henry E. Matthews ◽  
Tim Jenness ◽  
Thomas P. Ray
Keyword(s):  
Bolometer Array ◽  
Common User

100 mK bolometers for the submillimetre common-user bolometer array (scuba) I. Design and construction

1996 ◽  
Vol 17 (4) ◽  
pp. 669-692 ◽  
Author(s):  
W. S. Holland ◽  
P. A. R. Ade ◽  
M. J. Griffin ◽  
I. D. Hepburn ◽  
D. G. Vickers ◽  
...  
Keyword(s):  
Bolometer Array ◽  
Common User ◽  
Design And Construction

scholarly journals Submillimeter Common-User Bolometer Array Mapping ofSpitzerc2d Small Clouds and Cores

2006 ◽  
Vol 132 (5) ◽  
pp. 1998-2013 ◽  
Author(s):  
Chadwick H. Young ◽  
Tyler L. Bourke ◽  
Kaisa E. Young ◽  
Neal J. Evans II ◽  
Jes K. Jørgensen ◽  
...  
Keyword(s):  
Bolometer Array ◽  
Common User
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