Sentences with phrase «number density»

This figure shows number density (red squares) for each brightness of the galaxies derived from observation this time.

R.J. calculated the spatial number density of ISOs.

I don't know how absorption probabilities go with pressure off the top of my head, but for sure they decrease with decreasing pressure; focusing on band structure while excluding the huge drop in number density with altitude is obfuscatory.

The model suggests that denitrification is caused predominantly by nitric acid trihydrate particles in small number densities.

Gas number density varied between 102 and 1010 cm - 3, though the total amount of gas in the simulation stayed constant at 105 M ☉.

Surface number density of the hard sources is only slightly higher than that measured at the high Galactic latitude regions, indicating that majority of the hard sources are background AGNs.

«Given the rate of stars falling onto black holes and the number density of black holes in the nearby universe, we calculated how many such transients Pan-STARRS should have detected over a period of operation of 3.5 years.

From calculations of the nuclear reactions that occurred in the big bang, theorists can calculate the number density of neutrinos in the Universe.

The discrepancy between models and observations lies in what's known as the «galaxy velocity function», which describes the number density of galaxies for a given circular velocity.

The presence of «Oumuamua in the Solar System suggests that previous estimates of the number density of interstellar objects, based on the assumption that all such objects were cometary, were pessimistically low.

With the ALMA observations the team successfully measured the number density of galaxies approximately 10 times darker than the millimeter wave research results up to now.

Abstract: Weak lensing is commonly measured using shear through galaxy ellipticities, or using the effect of magnification bias on galaxy number densities.

We present the magnific... ▽ More Weak lensing is commonly measured using shear through galaxy ellipticities, or using the effect of magnification bias on galaxy number densities.

In addition, they also successfully measured the number density of galaxies with 10 times less luminosity than ones previously observed with the conventional millimeter instruments.

The absorption rate is readily calculated from Beer's law I / Io = exp -LRB-- N sigma L)(the proportion of light absorbed in a layer of thickness L depends exponentially on the Number density of the absorbers, the absorption cross-section of each molecule and the length of the layer L. Both I and sigma are functions of the light frequency / wavelength).

To evaluate the global effects of aerosols on the direct radiative balance, tropospheric chemistry, and cloud properties of the earth's atmosphere requires high - precision remote sensing that is sensitive to the aerosol optical thickness, size istribution, refractive index, and number density.

But the number density of molecules drops off exponentially with altitude.