Sentences with phrase «luminosity for»

In addition to hydrating your skin from the inside and out, we also love to use makeup that adds a little luminosity for a beautiful dewy finish.

It gives your skin a beautiful luminosity for a drugstore foundation.

Helps replenish lost moisture, delivering a dramatically replenished look and restoring a dewy luminosity for the look of youthful cushion.»

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Wolf 359 is classified as a flare star, one that can undergo dramatic increases in luminosity for several minutes as a result of magnetic activity on its surface.

Because this leads to an unresolvable overlap between spectral types» effective temperature and luminosity for some masses and ages of different L - T - Y types, no distinct temperature or luminosity values can be given.

He published the first plots of color versus luminosity for these stars.

We measure equivalent widths of spectral features, derive calibration relations using stars with interferometric measurements, and estimate stellar radii, effective temperatures, masses, and luminosities for the K2 planet hosts.

In practice there is a range of luminosities for the Type Ia, but the luminosity can be derived from the rate at which the supernova brightens and then fades — the more luminous ones take longer to brighten and then fade.

Not exact matches

«I always felt it a testament to luminosity of his intellect that he was so outwardly engaged in the world, and had such penetrating vision and passion for the wider concerns of society and ethics.»

Now, Lord, though the consecration of the world the luminosity and fragrance which suffuse the universe take on for me the lineaments of a body and a face — in you.

We studied the great German theologians whose names began with «B» (seemingly a prerequisite for theological luminosity)-- Barth, Bultmann, Brunner, Bonhoeffer...

It is a name that sparkles with luminosity, and would make a wonderful option for your baby girl.

Bottom Line: The Luminosity baby bouncer from Fisher - Price is ideal for parents on the go who need a lightweight bouncer.

Yet for all Hawking's luminosity, there's much about him that remains mysterious.

Leavitt worked out the «period - luminosity relationship» in 1908, giving astronomers a powerful tool for measuring the distance to stars and other astronomical objects.

With knowledge only of the luminosity of the star (1/600 that of the sun), the mass of the planet (1.3 times that of Earth), and the length of its orbit (11.2 days), the team was able to predict that, with a variety of possible atmospheres, it would be possible for Proxima b to harbor liquid water on its surface.

«The spectra show high velocities and luminosities that you can't account for otherwise.»

It can take several hundred million years for an M dwarf to settle down to the low - level luminosity it will maintain for the rest of its life.

Even sooner, in as little as a billion years, the sun's gradually increasing luminosity may make Earth unbearable for life.

For decades astronomers have been on the hunt for so - called «solar twins» — stars with the same ages, masses, temperatures, luminosities and chemical abundances as our own sFor decades astronomers have been on the hunt for so - called «solar twins» — stars with the same ages, masses, temperatures, luminosities and chemical abundances as our own sfor so - called «solar twins» — stars with the same ages, masses, temperatures, luminosities and chemical abundances as our own sun.

(For older, even more distant galaxies, the researchers were not able to see black hole activity as clearly, but they did set upper limits on x-ray luminosity.)

«It had a luminosity that was extraordinary,» says Alicia Soderberg of the Harvard - Smithsonian Center for Astrophysics in Cambridge, Massachusetts.

Except for the intense luminosity, many aspects of PS1 - 10afx are just too similar to a standard type Ia.

For that reason the star was tracked attentively, and soon it started to restore its luminosity.

There are two different black hole scenarios proposed to explain these objects: (1) they contain very «big» black holes that could be more than a thousand times more massive than the Sun (Note 1), or (2) they are relatively small black holes, «little monsters» with masses no more than a hundred times that of the Sun, that shine at luminosities exceeding theoretical limits for standard accretion (called «supercritical (or super-Eddington) accretion,» Note 2).

«Statistically, that means we should see many [different galactic rotation] velocities for the same luminosity.

But he insists there is clear potential for even higher proton - proton luminosity.

«So far we have doubled the peak and average «luminosity» - measures that are directly related to the collision rates,» said Wolfram Fischer, Associate Chair for Accelerators of Brookhaven's Collider - Accelerator Department and lead author on a paper describing the success just published in Physical Review Letters.

«For about three minutes after the BAT trigger, the superflare's X-ray brightness was greater than the combined luminosity of both stars at all wavelengths under normal conditions,» noted Goddard's Adam Kowalski, who is leading a detailed study on the event.

With more than 27,000 light flashes per second instead of the previous maximum of 120 per second, an extremely high luminosity, and the parallel operation of several experiment stations, it will be possible for scientists investigate more limited samples and perform their experiments more quickly.

Physicist Tim Hallman discusses the properties of the «perfect» liquid and plans for luminosity and detector upgrades to the Relativistic Heavy Ion Collider.

The star may have around 1 to 1.4 times Sol's mass (Wittenmyer et al, 2006, page 178; Valenti and Fischer, 2005; Allende Prieto et al, 1999, page 30, Table 1 for HR 799; Bonavita and Desidera, 2007, HD 16895 in Table 8; and NASA Stars and Exoplanet Database; and David F. Gray, 1992), around 1.24 times Sol's diameter based on a power - law estimate (NASA Stars and Exoplanet database; and Kenneth R. Lang, 1980); and around 2.2 times its theoretical bolometric luminosity (NASA Stars and Exoplanet database; and Kenneth R. Lang, 1980).

Star A's late spectral type and dim luminosity puts it possibly close to the lower limit of habitability for (multicellular) Earth - type plant and animal life, given the redness of its light and the increased risk of tidal locking from the closeness of the orbit necessary for liquid water on a planetary surface.

For the inner few kiloparsecs of the elliptical galaxies, the velocity dispersion = 220 × (L / L *) 0.25, where L * is a characteristic galaxy luminosity (around 10 billion solar luminosities).

Star b is a main sequence dwarf star of spectral and luminosity type M1 - 2 Ve Duquennoy and Mayor, 1991, page 489 for Gl 107 B).

This cool and dim, main sequence red dwarf (M1.5 Vne) may have about 37.5 to 48.6 percent of Sol's mass (Howard et al, 2014; RECONS; and Berger et al, 2006, Table 5, based on Delfosse et al, 2000), 34 to 39 percent of its diameter (Howard et al, 2014), and some 2.2 percent of its luminosity and 2.9 percent of its theoretical bolometric luminosity (Howard et al, 2014), correcting for infrared output (NASA Star and Exoplanet Database, derived using exponential formula from Kenneth R. Lang, 1980).

u «The masses of these early black holes are inferred from their [quasar] luminosities to be > 109 solar masses, which is a difficult theoretical challenge [for the big bang theory] to explain.»

I am measuring spectra of galaxies across the electromagnetic spectrum, which is useful for measuring the distances to galaxies, the luminosities of galaxies and how rapidly galaxies form stars.

Selection criteria for the 30 - star shortlist included: X-ray luminosity, rotation, spectral types or color, kinematics, metallicity, and Strömgren photometry (Margaret C. Turnbull, 2004).

Estimating distance from luminosity requires a model for the distribution of dust in the Milky Way and this distribution (especially in the spiral arms) is not simple.

The Tully - Fisher relation for the infrared luminosity is: circular velocity = 220 × (L / L *) 0.22.

At the highest zoom level, hovering your mouse over each star will give you the name, spectral type and luminosity of the star, and clicking on the star will bring up an information window that allows you to search for more information on that star.

Research interests: automated astronomy with robotic telescopes, high - precision photometry, luminosity and magnetic cycles in solar - type stars, the search for extrasolar planets, chromospherically active stars, pulsating variable stars More

NASA, Chandra X-Ray Observatory — ring and larger images (more) Magnetic field interactions between giant stars Aa and Ab are thought to energize the corona of the larger star (Aa), generating more x-rays than would be expected for a single star (more) and creating an x-ray luminosity that is 10,000 times that of the Solar corona.

[44] For massive stars, however, this mass - luminosity relationship poorly matches the estimated lifetime.

One technique for measuring the expansion rate is to observe the apparent brightness of objects of known luminosity like Type Ia supernovas.

[11] Thus, for example, the luminosity of the early Sun was only about 70 percent of its current value.

It may have around 85 percent of Sol's mass (Howard et al, 2010, for HD 97658 on Table 1, page 3), 73 percent of its diameter (Howard et al, 2010, for HD 97658 on Table 1, page 3), and 34 percent of its bolometric luminosity (Howard et al, 2010, for HD 97658 on Table 1, page 3; and the NASA Star and Exoplanet Database, derived from the exponential formula of Kenneth R. Lang, 1980).

Zeta Doradus is a main sequence dwarf star of spectral and luminosity type F7 V but has been classed as white as F6 and as yellow as F9 (Lagrange et al, 2009, page 14 for HD 33262; Trilling et al, 2008, page 26; NASA Stars and Exoplanet Database; and SIMBAD).