Douglas Scott
University of British Columbia
Publications 664
Published on Feb 25, 2019in The Astrophysical Journal 6.63
J. A. Shariff10
Estimated H-index: 10
Peter A. R. Ade95
Estimated H-index: 95
+ 27 AuthorsNicholas Galitzki8
Estimated H-index: 8
Linear polarization maps of the Carina Nebula were obtained at 250, 350, and 500 {\mu}m during the 2012 flight of the BLASTPol balloon-borne telescope. These measurements are combined with Planck 850 {\mu}m data in order to produce a submillimeter spectrum of the polarization fraction of the dust emission, averaged over the cloud. This spectrum is flat to within $\pm$15% (relative to the 350 {\mu}m polarization fraction). In particular, there is no evidence for a pronounced minimum of the spectr...
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Published on Mar 20, 2019in arXiv: Astrophysics of Galaxies
Fabian Walter85
Estimated H-index: 85
C. L. Carilli65
Estimated H-index: 65
+ 38 AuthorsR. J. Bouwens64
Estimated H-index: 64
One of the last missing pieces in the puzzle of galaxy formation and evolution through cosmic history is a detailed picture of the role of the cold gas supply in the star-formation process. Cold gas is the fuel for star formation, and thus regulates the buildup of stellar mass, both through the amount of material present through a galaxy's gas mass fraction, and through the efficiency at which it is converted to stars. Over the last decade, important progress has been made in understanding the r...
Ryley Hill2
Estimated H-index: 2
(University of British Columbia),
Douglas Scott96
Estimated H-index: 96
(University of British Columbia)
+ 12 AuthorsRyan F. Trainor1
Estimated H-index: 1
(Franklin & Marshall College)
A primary goal of the SCUBA-2 Web survey is to perform tomography of the early inter-galactic medium by studying systems containing some of the brightest quasi-stellar objects (QSOs; 2.5 1014 L⊙) QSOs with previous submillimetre continuum detections were followed up with CO(3–2) observations using the NOEMA interferometer. All but two of the QSOs are detected in CO(3–2); for one non-detection, our observations show a tentative 2σ line at the expected position and redshift, and for the other non-...
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Published on Mar 19, 2019in Journal of Cosmology and Astroparticle Physics 5.13
Dylan L. Jow (University of Toronto), D. Contreras8
Estimated H-index: 8
+ 1 AuthorsEmory F. Bunn15
Estimated H-index: 15
The statistics of extremal points in the cosmic microwave background (CMB) temperature (hot and cold spots) have been well explored in the literature, and have been used to constrain models of the early Universe. Here, we extend the study of critical points in the CMB to the set that remains after removing extrema, namely the saddle points. We perform stacks of temperature and polarization about temperature saddle points in simulations of the CMB, as well as in data from the Planck satellite. We...
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Published on Jan 28, 2019in arXiv: Astrophysics of Galaxies
Ruihan Henry Liu (University of British Columbia), Ryley Hill2
Estimated H-index: 2
+ 7 AuthorsS. M. Stach3
Estimated H-index: 3
Identifying the counterparts of submillimetre (submm) galaxies (SMGs) in multiwavelength images is a critical step towards building accurate models of the evolution of strongly star-forming galaxies in the early Universe. However, obtaining a statistically significant sample of robust associations is very challenging due to the poor angular resolution of single-dish submm facilities. Recent follow-up observations of a large sample of single dish-detected SMGs in the UKIDSS-UDS field with the Ata...
Kaustuv Basu14
Estimated H-index: 14
Jens Erler6
Estimated H-index: 6
+ 30 AuthorsDouglas Scott96
Estimated H-index: 96
(University of British Columbia)
Sunyaev-Zeldovich (SZ) effects were first proposed in the 1970s as tools to identify the X-ray emitting hot gas inside massive clusters of galaxies and obtain their velocities relative to the cosmic microwave background (CMB). Yet it is only within the last decade that they have begun to significantly impact astronomical research. Thanks to the rapid developments in CMB instrumentation, measurement of the dominant thermal signature of the SZ effects has become a routine tool to find and characte...
Jens Chluba31
Estimated H-index: 31
(University of Manchester),
M. Zaldarriaga + 98 AuthorsB.R. Johnson
Following the pioneering observations with COBE in the early 1990s, studies of the cosmic microwave background (CMB) have focused on temperature and polarization anisotropies. CMB spectral distortions - tiny departures of the CMB energy spectrum from that of a perfect blackbody - provide a second, independent probe of fundamental physics, with a reach deep into the primordial Universe. The theoretical foundation of spectral distortions has seen major advances in recent years, which highlight the...
Published on Jan 24, 2019in The Astrophysical Journal 6.63
T. K. Daisy Leung2
Estimated H-index: 2
Dominik A. Riechers47
Estimated H-index: 47
(Cornell University)
+ 9 AuthorsIsmael Perez-Fournon36
Estimated H-index: 36
We present CO (J = 1 → 0; 3 → 2; 5 → 4; 10 → 9) and 1.2 kpc resolution [C ii] line observations of the dusty star-forming galaxy (SFG) HXMM05—carried out with the Karl G. Jansky Very Large Array, the Combined Array for Research in Millimeter-wave Astronomy, the Plateau de Bure Interferometer, and the Atacama Large Millimeter/submillimeter Array, measuring an unambiguous redshift of z = 2.9850 ± 0.0009. We find that HXMM05 is a hyperluminous infrared galaxy (${L}_{\mathrm{IR}}$ = (4 ± 1) × 1013 L...
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Published on Feb 4, 2019in The Astrophysical Journal 6.63
Li-Ting Hsu13
Estimated H-index: 13
Lihwai Lin32
Estimated H-index: 32
+ 22 AuthorsS. P. Willner39
Estimated H-index: 39
We present deep $J$ and $H$-band images in the extended Great Observatories Origins Deep Survey-North (GOODS-N) field covering an area of 0.22 $\rm{deg}^{2}$. The observations were taken using WIRCam on the 3.6-m Canada France Hawaii Telescope (CFHT). Together with the reprocessed $K_{\rm s}$-band image, the $5\sigma$ limiting AB magnitudes (in 2" diameter apertures) are 24.7, 24.2, and 24.4 AB mag in the $J$, $H$, and $K_{\rm s}$ bands, respectively. We also release a multi-band photometry and ...
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Published on Mar 12, 2019in arXiv: Astrophysics of Galaxies
Alexandra Pope40
Estimated H-index: 40
(University of Massachusetts Amherst),
Lee Armus74
Estimated H-index: 74
(California Institute of Technology)
+ 29 AuthorsCaitlin M. Casey31
Estimated H-index: 31
(University of Texas at Austin)
Galaxies grow their supermassive black holes in concert with their stars, although the relationship between these major galactic components is poorly understood. Observations of the cosmic growth of stars and black holes in galaxies suffer from disjoint samples and the strong effects of dust attenuation. The thermal infrared holds incredible potential for simultaneously measuring both the star formation and black hole accretion rates in large samples of galaxies covering a wide range of physical...