«If we start
detecting planets around stars like that, we can tell what happens to planetary systems when their stars begin to evolve and lose mass and swell up and do all those unpleasant things,» he says.
Not exact matches
In a few thousand years of recorded history, we went from dwelling in caves and mud huts and tee - pees, not understanding the natural world
around us, or the broader universe, to being able to travel through space, using reason to ferret out the hidden secrets of how the world works, from physics to chemistry to biology, we worked out the tools and rules underpinning it all, mathematics, and now we can see objects that are almost impossibly small, the very tiniest building blocks of matter, (or at least we can examine them, even if you can't «see» them because you're using something other than your eyes and photons to view them) to the very farthest objects, the
planets circling other, distant
stars, that are in their own way, too small to see from here, like the atoms and parts of atoms themselves,
detected indirectly, but indisputably THERE.
Still, it's an incredibly important image: it gave us an extra 13 year baseline in observing these
planets, long enough to actually
detect their orbital motion
around their
star!
Coupled with software to reduce assorted stellar background noise, it could measure light changes down to 20 parts per million, making it more than sensitive enough to
detect an Earth - size
planet around a sunlike
star in an orbit as large as Earth's.
The scope's light - collecting capacity — made possible with almost 800 mirror segments just 50 millimeters thick — will allowastronomers to
detect Earth - like
planets around other
stars, measure the properties of the universe's first
stars and galaxies, and probe the nature of dark matter and dark energy.
It took Bill Borucki more than 30 years and $ 600 million to build the Kepler telescope so he could
detect planets around other
stars.
At first astronomers thought they might have
detected a
planet around a single
star somewhere in our galaxy.
After
detecting the first exoplanets in the 1990s it has become clear that
planets around other
stars are the rule rather than the exception and there are likely hundreds of billions of exoplanets in the Milky Way alone.
On the face of it,
detecting a moon
around a
planet orbiting a distant
star seems like a spectacularly difficult task, but with a bit of luck today's technology may be able to do it.
It has been used to
detect planets around distant
stars within the Milky Way galaxy, and was among the first methods used to confirm Albert Einstein's general theory of relativity.
«These new results show that
planets in open
star clusters are about as common as they are
around isolated
stars — but they are not easy to
detect,» adds Luca Pasquini (ESO, Garching, Germany), co-author of the new paper [6].
Low - Hanging Fruit The trick to keeping costs down is focusing on
planets around relatively bright, nearby
stars — the easiest ones to
detect.
Signs of
planet detected around sun's nearest neighbor
star.
The researchers say they
detected the presence of two new extrasolar
planets (exoplanets)
around a red dwarf
star, Gliese 581, 20.5 light - years away in the constellation Libra, based on slight motions of the
star.
The Gemini
Planet Imager GPI is an advanced instrument designed to observe the environments close to bright
stars to
detect and study Jupiter - like exoplanets (
planets around other
stars) and see protostellar material (disk, rings) that might be lurking next to the
star.
Reporting today at the U.K. National Astronomy Meeting in Llandudno, Wales, astronomers say they have used an array of radio telescopes to
detect a belt of pebble - sized rocks
around a young
star — the next stage in
planet formation.
Detecting planets in orbit
around very young
stars proves to be a significant observational challenge, since such
stars are monsters in comparison with our own Sun.
«If [the moon is] real, maybe it shouldn't be terribly surprising that we saw it, since it's large enough to be
detected as a
planet in its own right, at least
around some
stars.
The same approach was used by the team to study the SDSS 1557 system as any
planets within it can not yet be
detected directly but the debris is spread in a large belt
around the double
stars, which is a much larger target for analysis.
For the first time since exoplanets, or
planets around stars other than the sun, were discovered almost 20 years ago, X-ray observations have
detected an exoplanet passing in front of its parent
star.
Because, as astronomy reporter Christopher Crockett writes in «Signs of
planet detected around sun's nearest neighbor
star» (SN: 6/17/16, p.
The technique is only sensitive enough, however, to
detect the perturbations of a massive
planet around the nearest
stars.
The huge size of the E-ELT should allow METIS to
detect and study exoplanets the size of Mars orbiting Alpha Centauri, if they exist, as well as other potentially habitable
planets around other nearby
stars.
I'm confident that we'll
detect signs of life on exoplanets (
planets around other
stars) by observing the atmospheres of the
planets that we're
detecting now — especially those similar to Earth in mass and orbit — and finding oxygen and other chemical signatures there.
The «habitable zone» is the region
around a
star in which water on a
planet's surface is liquid and signs of life can be remotely
detected by telescopes.
The oldest
detected Kepler
planets (exoplanets found using NASA's Kepler telescope) are about 11 billion years old, and the planetary diversity suggests that
around other
stars, such initially frozen worlds could be the size of Earth and could even provide habitable conditions once the
star becomes older.
The Kepler space telescope, which simultaneously and continuously measured the brightness of more than 150,000
stars, is NASA's first mission capable of
detecting Earth - size
planets around stars like our sun.
Along with Alycia Weinberger and Ian Thompson, Alan Boss has been running the Carnegie Astrometric
Planet Search (CAPS) program, which searches for extrasolar planets by the astrometric method, where the planet's presence is detected indirectly through the wobble of the host star around the center of mass of the s
Planet Search (CAPS) program, which searches for extrasolar
planets by the astrometric method, where the
planet's presence is detected indirectly through the wobble of the host star around the center of mass of the s
planet's presence is
detected indirectly through the wobble of the host
star around the center of mass of the system.
It's been less than a year since astronomers
detected seven
planets around TRAPPIST - 1, a remarkable
star system located 39 light years from Earth.
As of October 19, 2010, three
planets have been
detected around Star A, and the potential presence a fourth outermost
planet «e» is suggested in preliminary data.
«While the current state of the technique can not
detect Earths
around stars like the Sun, with Keck Observatory it should soon be possible to study the atmospheres of the so - called «super-Earth»
planets being discovered
around nearby low mass
stars, many of which do not transit,» Blake said.
However, extrasolar
planets remain difficult to
detect: many
planets have been found, but almost all
around far - away
stars that are particularly well - suited for
detecting planets around them.
The
detected water most likely came from a minor
planet, at least 90 km in diameter but probably much larger, that once orbited the GD 61
star before it became a white dwarf
around 200 million years ago.
Given that the presence of one close - orbiting
planet usually indicates the presence of others, many astronomers are now expected to devote more resources to
detecting such potential
planets around Star B (ESO press release; and Dumusque et al, 2012).
On March 25, 2015, a team of astronomers using the Hubble Space Telescope revealed observations which indicate via the transit method that Alpha Centauri B may have a second
planet «c» in a hot inner orbit, just outside
planet candidate «b.» After observing Alpha Centauri B in 2013 and 2014 for a total of 40 hours, the team failed to
detect any transits involving
planet b (previously
detected using the radial velocity variations method and recently determined not to be observed edge - on in a transit orbit
around Star B).
However, astronomers would find it very difficult to
detect Earth - type
planets around these
stars using present methods.
Capable of observing the Universe by
detecting light that is invisible to the human eye, ALMA will show us never - before - seen details of the birth of
stars, infant galaxies in the early Universe, and
planets coalescing
around distant suns.
We then compare the number of observed
planet candidates to the number of
stars around which such
planets could have been
detected in order to estimate the
planet occurrence rate
around cool
stars.
«Our observations show that we can
detect the transits of small
planets around Sun - like
stars using ground - based telescopes,» Ernst de Mooij of Queen's University Belfast in the United Kingdom and the study's lead author, said in a statement.
As of October 2012, astronomers have been able to
detect planets in the Solar System and
around Alpha Centauri B and Lalande 21185 among the nearest 12
stars.
As a subgiant
star subject to pulsations which affect careful measurements of variations in radial velocity caused by the gravitational pull of substellar companions, astronomers would find it very difficult to
detect any Earth - type
planet around Beta Hydri using present methods.
A putative seventh
planet around HD 10180 is estimated to be 1.4 times the mass of Earth, and would be the lowest - mass
planet yet
detected around another Sun - like
star.
There are 49
planet candidates
around these
stars, including 42
detected through transits and 7 revealed by precise Doppler measurements of the host
stars.
Spinning
stars slow as they grow older, and this rotational rate could be key to
detecting life on
planets around alien
stars.
So I predict that in 10 years we will have
detected oxygen in Earth - size
planets around Sun - like
stars.
Abstract: We recently used near - infrared spectroscopy to improve the characterization of 76 low - mass
stars around which K2 had
detected 79 candidate transiting
planets.
He added: «It would open an enormous new window on the Universe, allowing you to
detect the presence of oxygen if there is any on Earth - like
planets around nearby
stars.
Kipping's exomoon detection involves discovering its gravitational pull on the orbital velocity of a
planet host — which in turn, are often
detected based on their gravitational pull
around a
star.
No
planet was directly
detected but we set upper limits on the mass up to 7... ▽ More The recent discovery of an earth - like
planet around Proxima Centauri has drawn much attention to this
star and its environment.
As relatively small
planets at close distances to their host
stars, astronomers would have great difficulty in
detecting such
planets around either
star using present methods.