Inexpensive mount for a large millimeter-wavelength telescope

Padin, S.

doi:10.1364/ao.53.004431

Cited by 6 publications

(3 citation statements)

References 35 publications

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“…Consequently, the UV-inferred star formation rate density may be more unreliable than is generally believed. This highlights an urgent need for current and future observatories, such as ALMA, the Large Millimeter Telescope, and the Chajnantor Submillimeter Survey Telescope (Padin 2014), to directly constrain the obscured SFRs of galaxies at higher redshift and lower SFRs than are probed by existing surveys.…”

Section: Discussionmentioning

confidence: 99%

The IRX–β Relation: Insights from Simulations

Safarzadeh

Hayward

Ferguson

2017

ApJ

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We study the relationship between the UV continuum slope and infrared excess ( º L L IRX IR FUV ) predicted by performing dust radiative transfer on a suite of hydrodynamical simulations of galaxies. Our suite includes both isolated disk galaxies and mergers intended to be representative of galaxies at bothz 0 and~-z 2 3. Our lowredshift systems often populate a region around the locally calibrated Meurer et al. relation but move above the relation during merger-induced starbursts. Our high-redshift systems are blue and IR luminous and therefore lie above the Meurer et al. relation. The value of β strongly depends on the dust type used in the RT simulation: Milky-Way-type dust leads to significantly more negative (bluer) slopes compared with Small-Magellanic-Cloudtype dust. The effect on β due to variations in the dust composition with galaxy properties or redshift is the dominant model uncertainty. The dispersion in β is anticorrelated with specific star formation rate (sSFR) and tends to be higher for the~-z 2 3 simulations. In the actively star-forming~-z 2 3 simulated galaxies, dust attenuation dominates the dispersion in β, whereas in thez 0 simulations, the contributions of star formation history (SFH) variations and dust are similar. For low-sSFR systems at both redshifts, SFH variations dominate the dispersion. Finally, the simulated~-z 2 3 isolated disks and mergers both occupy a region in the b -IRX plane consistent with observed~-z 2 3 dusty star-forming galaxies (DSFGs). Thus, contrary to some claims in the literature, the blue colors of high-z DSFGs do not imply that they are short-lived starbursts.

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Section: Discussionmentioning

confidence: 99%

The IRX–β Relation: Insights from Simulations

Safarzadeh

Hayward

Ferguson

2017

ApJ

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“…Other locations with comparable atmospheric transmission are at the South Pole or Dome-C in Antarctica, where for example the current 10-m SPT dish is already used for submm VLBI [87]. Future developments in the Atacama desert will likely include the CSST [88] and lead up to AtLAST [89][90][91], a 50-m class submm telescope that will revolutionize SZ spectral science. Looking from space, future CMB missions like PICO [92] and CMB-Bharat [93] -building upon the scientifically compelling mission concepts of PRISM [94] and CORE [95] -will provide full-sky coverage with angular resolution similar to Planck's, but with more spectral channels and much better sensitivity.…”

Section: The Path Forward In the Coming Decadementioning

confidence: 99%

"SZ spectroscopy" in the coming decade: Galaxy cluster cosmology and astrophysics in the submillimeter

Basu¹,

Erler²,

Chluba³

et al. 2019

Preprint

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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 characterize large samples of galaxy clusters and to seek deeper understanding of several important astrophysical processes via high-resolution imaging studies of many targets. With the notable exception of the Planck satellite and a few combinations of ground-based observatories, much of this "SZ revolution" has happened in the photometric mode, where observations are made at one or two frequencies in the millimeter regime to maximize the cluster detection significance and minimize the foregrounds. Still, there is much more to learn from detailed and systematic analyses of the SZ spectra across multiple wavelengths, specifically in the submillimeter ( 300 GHz) domain. The goal of this Science White Paper is to highlight this particular aspect of SZ research, point out what new and potentially groundbreaking insights can be obtained from these studies, and emphasize why the coming decade can be a golden era for SZ spectral measurements.

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“…A significant leap in SZ science capabilities will require a large aperture ( 30 meter), large FoV ( 1 degree), multi-frequency mm/submm telescope, such as the Atacama Large Aperture Submm/mm Telescope (AtLAST; see [98][99][100][101][102]), Large Submm Telescope (LST; see [103]), Chajnantor Sub/millimeter Survey Telescope (CSST; see [104,105]), or CMB in High-Definition (CMB-HD; see [106]). With an instantaneous FoV at least 225× that of the 50-m LMT and the better atmospheric transmission of an intrinsically drier site > 5000 meters above sea level, a mapping speed at least 500× greater can be expected for such facilities, enabling a transformative leap in sample size and serving as an invaluable complement to future X-ray facilities.…”

Section: Prospects For the Next Decadementioning

confidence: 99%

A High-resolution SZ View of the Warm-Hot Universe

Mroczkowski¹,

Nagai²,

Andreani³

et al. 2019

Preprint

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The Sunyaev-Zeldovich (SZ) effect was first predicted nearly five decades ago, but has only recently become a mature tool for performing high resolution studies of the warm and hot ionized gas in and between galaxies, groups, and clusters. Galaxy groups and clusters are powerful probes of cosmology, and they also serve as hosts for roughly half of the galaxies in the Universe. In this white paper, we outline the advances in our understanding of thermodynamic and kinematic properties of the warm-hot universe that can come in the next decade through spatially and spectrally resolved measurements of the SZ effects. Many of these advances will be enabled through new/upcoming millimeter/submillimeter (mm/submm) instrumentation on existing facilities, but truly transformative advances will require construction of new facilities with larger fields of view and broad spectral coverage of the mm/submm bands.

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Inexpensive mount for a large millimeter-wavelength telescope

Cited by 6 publications

References 35 publications

The IRX–β Relation: Insights from Simulations

The IRX–β Relation: Insights from Simulations

"SZ spectroscopy" in the coming decade: Galaxy cluster cosmology and astrophysics in the submillimeter

A High-resolution SZ View of the Warm-Hot Universe

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