Sentences with phrase «as dwarf stars»

Main sequence stars are normal stars, but due to historical factors they are also known as dwarf stars.

Not exact matches

The most recent Nature World News reported this week that a German weekly magazine announced that researchers have found an «Earth - like» planet orbiting Proxima Centauri — a star that's known as a «tiny, red dwarf.»

1 Corinthians 11:14 (Men should not have long hair) 1 Corinthians 14:34 - 35 (Women should remain silent in church) Deuteronomy 13:6 - 16 (Death penalty for Apostasy) Deuteronomy 20:10 - 14 (Attack city, kill all men, keep women, children as spoils of war) Deuteronomy 21:18 - 21 (Death penalty for a rebellious son) Deuteronomy 22:19 - 25 (Kill non - virgin / kill adulterers / rapists) Ecclesiastes 1:18 (Knowledge is bad) Exodus 21:1 - 7 (Rules for buying slaves) Exodus 35:2 (Death for working on the Sabbath) Ezekiel 9:5 - 6 (Murder women / children) Genesis 1:3,4,5,11,12,16 (God creates light, night and day, plants grow, before creating sun) Genesis 3:16 (Man shall rule over woman) Jeremiah 19:9 (Cannibalism) John 3:18 (He who believes in Jesus is saved, he that doesn't is condemned) John 5:46 - 47 (Jesus references Old Testament) Leviticus 3:1 - 17 (Procedure for animal sacrifice) Leviticus 19:19 (No mixed fabrics in clothing) Leviticus 19:27 (Don't trim hair or beard) Leviticus 19:28 (No tattoos) Leviticus 20:9 (Death for cursing father or mother) Leviticus 20:10 (Death for adultery) Leviticus 20:13 (Death for gay men) Leviticus 21:17 - 23 (Ugly people, lame, dwarfs, not welcome on altar) Leviticus 25:45 (Strangers can be bought as slaves) Luke 12:33 (Sell your possessions, and give to the poor) Luke 14:26 (You must hate your family and yourself to follow Jesus) Mark 10:11 - 12 (Leaving your spouse for another is adultery) Mark 10:21 - 22 (Sell your possessions and give to the poor) Mark 10:24 - 25 (Next to impossible for rich to get into heaven) Mark 16:15 - 16 (Those who hear the gospel and don't believe go to hell) Matthew 5:17 - 19 (Jesus says he has come to enforce the laws of the Old Testament) Matthew 6:5 - 6 (Pray in secret) Matthew 6:18 (Fast for Lent in secret) Matthew 9:12 (The healthy don't need a doctor, the sick do) Matthew 10:34 - 37 (Jesus comes with sword, turns families against each other, those that love family more than him are not worthy) Matthew 12:30 (If you're not with Jesus, you're against him) Matthew 15:4 (Death for not honouring your father and mother) Matthew 22:29 (Jesus references Old Testament) Matthew 24:37 (Jesus references Old Testament) Numbers 14:18 (Following generations blamed for the sins of previous ones) Psalms 137:9 (Violence against children) Revelation 6:13 (The stars fell to earth like figs) Revelation 21:8 (Unbelievers, among others, go to hell) 1 Timothy 2:11 - 12 (Women subordinate and must remain silent) 1 Timothy 5:8 (If you don't provide for your family, you are an infidel)

In nature, changes of environmental conditions arise from such sources as the melting of polar ice - caps, explosion of dwarf stars, the fall of night.

So, too, do astrophysical exotica such as neutron stars and white dwarfs — the remnants left by normal stars when they die.

The supernova, known as SN1987A, was first seen by observers in the Southern Hemisphere in 1987 when a giant star suddenly exploded at the edge of a nearby dwarf galaxy called the Large Magellanic Cloud.

As an ultracool dwarf, TRAPPIST - 1 rides the edge of what counts as a staAs an ultracool dwarf, TRAPPIST - 1 rides the edge of what counts as a staas a star.

Red dwarfs are a popular place to hunt for small exoplanets in the habitable zone — but the stars» radiation bursts might fry chances for life as we know it.

The researchers found that relatively cool accretion discs around young stars, whose inner edges can be several times the size of the Sun, show the same behaviour as the hot, violent accretion discs around planet - sized white dwarfs, city - sized black holes and supermassive black holes as large as the entire Solar system, supporting the universality of accretion physics.

The study, «Accretion - induced variability links young stellar objects, white dwarfs, and black holes», which is published in the journal Science Advances, shows how the «flickering» in the visible brightness of young stellar objects (YSOs)-- very young stars in the final stages of formation — is similar to the flickering seen from black holes or white dwarfs as they violently pull matter from their surroundings in a process known as accretion.

Brown dwarfs, less massive than stars, are nearly dark, as are collapsed stars — white dwarfs, neutron stars, and black holes.

It would form a brown dwarf — a near - invisible object almost as hefty as a star.

As relatively small stars (those less than ten times the mass of our sun) near the end of their lives, they throw off their outer layers and become white dwarf stars, which are very dense.

Other astronomers are examining the smallest known brown dwarfs — which are around 10 times as massive as Jupiter — to determine the minimum mass needed for gravity to pull a pocket of gas and dust together to form a star.

PASADENA, CALIFORNIA — The surprising heat from 63 brown dwarfs is helping astronomers make the case that these puzzling objects are failed stars, and not big planets, as some have argued.

For that reason, Hyman's team has not ruled out a lower - energy source, such as magnetic outbursts from a dim «failed star» called a brown dwarf.

These icy bodies apparently survived the star's evolution as it became a bloated red giant and then collapsed to a small, dense white dwarf.

After years of scrutinizing the closest star to Earth, a red dwarf known as Proxima Centauri, astronomers have finally found evidence for a planet, slightly bigger than Earth and well within the star's habitable zone — the range of orbits in which liquid water could exist on its surface.

In this artist's conception, a Ceres - like asteroid is slowly disintegrating as it orbits a white dwarf star.

Astronomers think white dwarfs must not be stars so much as the corpses of stars.

As Wetzel explained: «By improving how we modeled the physics of stars, this new simulation offered a clear theoretical demonstration that we can, indeed, understand the dwarf galaxies we've observed around the Milky Way.

Brown dwarfs can be thought of as failed stars because they are too small to fuse chemical elements in their cores.

The unseen movers are fast - moving white dwarf stars that could account for as much as one - third of the galaxy's dark matter.

CANNIBAL ZOMBIE STAR Dead stars called white dwarfs (left) steal material from ordinary companion stars (right), as shown in this artist's illustration.

We once thought that dark matter might be made up of large objects such as black holes or exotic types of faint stars — neutron stars or white dwarfs — that are nearly invisible to our telescopes.

The great majority of those stars are dim, low - mass runts known as red dwarfs.

The event was what's known as a classical nova explosion, which occurs when a dense stellar corpse called a white dwarf steals enough material from an ordinary companion star for its gas to spontaneously ignite.

Earlier this year, MIT astronomer Sarah Ballard re-calculated how many planets TESS might find orbiting the cool, plentiful stars known as M dwarfs — and predicted some 990 such planets, 1.5 times more than earlier estimates2.

All of these worlds orbit faint ruddy stars known as M dwarfs, the most common type of star in the galaxy.

Imagine being able to view microscopic aspects of a classical nova, a massive stellar explosion on the surface of a white dwarf star (about as big as Earth), in a laboratory rather than from afar via a telescope.

That happens if it has a companion star, as most stars in the galaxy do, and the white dwarf orbits it closely enough to steal material from it.

Typical galaxies range from dwarfs with as few as ten million stars up to giants with one trillion stars, all orbiting a common center of mass.

At least seven planets orbit this ultracool dwarf star 40 light - years from Earth and they are all roughly the same size as the Earth.

In their new study, the Leicester - led team assesses whether these laws are the same within the hot, dense conditions in the atmosphere of a dying white dwarf star as here on Earth.

«There is a suggestion there is at least as many brown dwarfs as there are stars.

[1] The team used data from the UVES spectrograph on ESO's Very Large Telescope in Chile (to determine the properties of the star accurately), the Carnegie Planet Finder Spectrograph (PFS) at the 6.5 - metre Magellan II Telescope at the Las Campanas Observatory in Chile, the HIRES spectrograph mounted on the Keck 10 - metre telescope on Mauna Kea, Hawaii as well as extensive previous data from HARPS (the High Accuracy Radial velocity Planet Searcher) at ESO's 3.6 - metre telescope in Chile (gathered through the M dwarf programme led by X. Bonfils and M. Mayor 2003 - 2010.

Using data gathered by an infrared camera during a survey of such stars, astronomers have found that the brightness of a brown dwarf — dubbed 2MASS 2139, which lies about 47 light - years from Earth — varied as much as 30 % in less than 8 hours.

Or even M dwarfs, the slow - burning, cooler stars, sometimes known as red dwarfs.

Recently, a newly discovered Earth - sized planet orbiting Ross 128, a red dwarf star that is smaller and cooler than the sun located some 11 light years from Earth, was cited as a water candidate.

But von Hippel, Gilmore and their colleagues used the Hubble Space Telescope, and this allowed them to identify and measure the temperature of white dwarfs as faint as 25th magnitude, which is about 100 million times fainter than any star visible with the naked eye.

One is that it is in the form of brown dwarfs, very faint stars made of the same kind of baryonic material as our Sun.

Known as an ultra-compact dwarf, this type of system has up to a billion stars and can be similar in mass to a galaxy, but it is compact and looks more like a star cluster.

Known as 2014J, this was a Type la supernova caused by the explosion of a white dwarf star, the inner core of star once it has run out of nuclear fuel and ejected its outer layers.

Gas - giant planets more massive than Jupiter — as well as «failed stars» called brown dwarfs — should conversely have much shallower winds.

GALACTOSEISMIC ACTIVITY The Milky Way's gas (left image) and stars (right) might have been disturbed by a close run - in with a dwarf galaxy (blob at bottom left of both images), as seen in this computer simulation.

But some scientists have suggested the fast - moving stars near the cluster centres could instead result from the gravity of many dim, dead stars such as white dwarfs or neutron stars.

Apps noted that the precise colors of KOI - 961, which is some 120 light - years away from Earth, are exactly like those of a much nearer red dwarf star known as Barnard's Sstar known as Barnard's StarStar.

At the same meeting, astronomer Thomas Beatty of Ohio State University, Columbus, announced the discovery of just such a system with the small KELT telescope in Arizona: a brown dwarf 27 times as massive as Jupiter, orbiting its hot parent star every 30 hours.

When Sigurdsson and colleagues analyzed images of the white dwarf from the Hubble Space Telescope, they concluded that the distant, unseen companion is not a low - mass star, as many researchers had thought, but a planet with about 2.5 times the mass of Jupiter.

The first hint of the kamikaze asteroids came about 40 years ago, when astronomers discovered heavy elements such as magnesium in the spectra of some white dwarf stars.