Precise determination of the isothermal compressibility of mercury at 20 $deg$C and 192 bar

Hayward, Alan T. J.

doi:10.1088/0022-3727/4/7/309

Cited by 26 publications

(19 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8, corresponding to a projected physical distance of ≈ 6 kpc. This distance is typical of the pericentric passage distance in both hydrodynamical simulations of major mergers (e.g., Hayward et al 2012a) and observations of major mergers (e.g., Ivison et al 2007;Tacconi et al 2008;Engel et al 2010;Riechers et al 2011b;Ivison et al 2011). Two plausible scenarios are that HADFS02 represents a major merger that just experienced a first pass or is approaching final coalescence, either of which would significantly enhance starformation in the system.…”

Section: Individual Model Fitsmentioning

confidence: 68%

“…Dust masses are assigned using an empirically determined redshiftdependent mass-metallicity relation and an assumed dust-to-metal density ratio of 0.4 (see Hayward et al 2013b for details). Finally, submm flux densities are interpolated from the SFRs and dust masses using a fitting function that is based on the results of dust radiative transfer calculations performed on hydrodynamical simulations of isolated and interacting galaxies (Hayward et al 2011(Hayward et al , 2012b(Hayward et al , 2013b.…”

Section: Spatial Distribution Of Multiple Sourcesmentioning

confidence: 99%

See 1 more Smart Citation

ERRATUM: “HERMES: ALMA IMAGING OF HERSCHEL-SELECTED DUSTY STAR-FORMING GALAXIES” (2015, ApJ, 812, 43)

Bussmann

Riechers

Fialkov

et al. 2015

ApJ

View full text Add to dashboard Cite

The Herschel Multi-tiered Extragalactic Survey (HerMES) has identified large numbers of dusty star-forming galaxies (DSFGs) over a wide range in redshift. A detailed understanding of these DSFGs is hampered by the limited spatial resolution of Herschel. We present 870 µm 0. 45 resolution imaging from the Atacama Large Millimeter/submillimeter Array (ALMA) of 29 HerMES DSFGs with farinfrared (FIR) flux densities in between the brightest of sources found by Herschel and fainter DSFGs found in ground-based sub-millimeter (sub-mm) surveys. We identify 62 sources down to the 5σ point-source sensitivity limit in our ALMA sample (σ ≈ 0.2 mJy), of which 6 are strongly lensed (showing multiple images) and 36 experience significant amplification (µ > 1.1). To characterize the properties of the ALMA sources, we introduce and make use of uvmcmcfit, a publicly available Markov chain Monte Carlo analysis tool for interferometric observations of lensed galaxies. Our lens models tentatively favor intrinsic number counts for DSFGs with a steep fall off above 8 mJy at 880 µm. Nearly 70% of the Herschel sources comprise multiple ALMA counterparts, consistent with previous research indicating that the multiplicity rate is high in bright sub-mm sources. Our ALMA sources are located significantly closer to each other than expected based on results from theoretical models as well as fainter DSFGs identified in the LABOCA ECDFS Submillimeter Survey. The high multiplicity rate and low projected separations argue in favor of interactions and mergers driving the prodigious emission from the brightest DSFGs as well as the sharp downturn above S 880 = 8 mJy.

show abstract

Section: Individual Model Fitsmentioning

confidence: 68%

Section: Spatial Distribution Of Multiple Sourcesmentioning

confidence: 99%

ERRATUM: “HERMES: ALMA IMAGING OF HERSCHEL-SELECTED DUSTY STAR-FORMING GALAXIES” (2015, ApJ, 812, 43)

Bussmann

Riechers

Fialkov

et al. 2015

ApJ

View full text Add to dashboard Cite

show abstract

“…The last technique used a published value for the compressibility of mercury which is accurate to about 0.5 percent at the pressure and temperature of interest [41,42]. 6.8.1 Theoretical Values of Compliance The theory of elasticity can be used to calculate the changes in the interior volume of a thick-walled, isotropic, spherical shell in response to pressure changes [53].…”

Section: Compliancementioning

confidence: 99%

Measurement of the universal gas-constant R using a spherical acoustic resonator

Moldover¹,

Trusler²,

Edwards³

et al. 1988

J. RES. NATL. BUR. STAN.

244

330

View full text Add to dashboard Cite

We report a new determination of the Universal Gas Constant R: (8.314471 ±0.OOOOI4)J.mol-1 K-1• The uncertainty in the new value is 1.7 ppm (standard error), a factor of 5 smaller than the uncertainty in the best previous value. The gas constant was determined from measurements of the speed of sound in argon as a function of pressure at the temperature of the triple point of water. The speed of sound was measured with a spherical resonator whose volume was determined by weighing the mercury required to fill it at the temperature of the tri~le point. The molar mass of the argon was determined by comparing the speed of sound in it to the speed of sound in a standard sample of argon of accurately known chemical and isotoptic composition.

show abstract

“…At a given redshift, normal star-forming galaxies form a so-called main sequence on this plane (with near constant specific star formation rate, sSFR ≡ SFR/Mstar), whereas 'starbursts' are offset towards higher sSFRs by a factor of > 2-4 (Daddi et al 2007;Noeske et al 2007;González et al 2010;Elbaz et al 2011;Speagle et al 2014). Hence, the location of submm galaxies with respect to the main sequence may tell us whether they are predominantly triggered by mergers, or alternatively are fed by (relatively steady) cold gas infall (the two options proposed by theoretical arguments; Swinbank et al 2008;Davé et al 2010;Narayanan et al 2010Narayanan et al , 2015Ricciardelli et al 2010;González et al 2011;Hayward et al 2011aHayward et al ,b, 2012Cowley et al 2015). This is because a major merger is a short-lived phenomenon, resulting in a substantial but temporary boost in SFR, potentially pushing a galaxy significantly above the main sequence (e.g.…”

mentioning

confidence: 99%

The SCUBA-2 Cosmology Legacy Survey: the nature of bright submm galaxies from 2 deg2 of 850-μm imaging

Michałowski

Dunlop

Koprowski

et al. 2017

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

We present physical properties [redshifts (z), star formation rates (SFRs) and stellar masses (M star )] of bright (S 850 4 mJy) submm galaxies in the ≃ 2 deg 2 COSMOS and UDS fields selected with SCUBA-2/JCMT. We complete the galaxy identification process for all (≃ 2 000) S/N 3.5 850-µm sources, but focus our scientific analysis on a high-quality subsample of 651 S/N 4 sources with complete multiwavelength coverage including 1.1-mm imaging. We check the reliability of our identifications, and the robustness of the SCUBA-2 fluxes by revisiting the recent ALMA follow-up of 29 sources in our sample. Considering > 4 mJy ALMA sources, our identification method has a completeness of ≃ 86 per cent with a reliability of ≃ 92 per cent, and only ≃ 15-20 per cent of sources are significantly affected by multiplicity (when a secondary component contributes > 1/3 of the primary source flux). The impact of source blending on the 850-µm source counts as determined with SCUBA-2 is modest; scaling the single-dish fluxes by ≃ 0.9 reproduces the ALMA source counts. For our final SCUBA-2 sample, we find median z = 2.40 +0.10 −0.04 , SFR = 287 ± 6 M ⊙ yr −1 and log(M star /M ⊙ ) = 11.12 ± 0.02 (the latter for 349/651 sources with optical identifications). These properties clearly locate bright submm galaxies on the high-mass end of the 'main sequence' of star-forming galaxies out to z ≃ 6, suggesting that major mergers are not a dominant driver of the high-redshift submm-selected population. Their number densities are also consistent with the evolving galaxy stellar mass function. Hence, the submm galaxy population is as expected, albeit reproducing the evolution of the main sequence of star-forming galaxies remains a challenge for theoretical models/simulations.

show abstract

Precise determination of the isothermal compressibility of mercury at 20 $deg$C and 192 bar

Cited by 26 publications

References 15 publications

ERRATUM: “HERMES: ALMA IMAGING OF HERSCHEL-SELECTED DUSTY STAR-FORMING GALAXIES” (2015, ApJ, 812, 43)

ERRATUM: “HERMES: ALMA IMAGING OF HERSCHEL-SELECTED DUSTY STAR-FORMING GALAXIES” (2015, ApJ, 812, 43)

Measurement of the universal gas-constant R using a spherical acoustic resonator

The SCUBA-2 Cosmology Legacy Survey: the nature of bright submm galaxies from 2 deg2 of 850-μm imaging

Contact Info

Product

Resources

About