Greater ability to see detail, called resolving power, has been a quest
of radio astronomers for more than half a century.
The IAA award citation notes that the VSOP team «realized the long - held dream
of radio astronomers to extend those baselines into space, by observing celestial radio sources with the HALCA satellite, supported by a dedicated network of tracking stations, and arrays of ground radio telescopes from around the world.»
«Our conclusions are contrary to other recent work, but in line with the work
of radio astronomers who see no new stars being born in this desert,» said Michael Feast, a co-author of the study, in the press release.
So that's made it easy for — and the reason I say radio astronomy is because I'm following this one specific group
of radio astronomers for another project and I've seen how off - the - shelf consumer electronics has really made their mission possible.
«A lot
of radio astronomers are very excited.»
Fortunately, a team
of radio astronomers led by Bill Junor at the University of New Mexico, Albuquerque, had access to just such a telescope: the Very Long Baseline Array (VLBA).
Then in 2011, a team
of radio astronomers led by Matthew Bailes of Australia's Swinburne University of Technology found a third planetary system around a pulsar, one unlike either of the previous two.
Not exact matches
In 1974, U.S.
astronomers Russell Hulse and Joseph Taylor discovered a pair
of radio - emitting neutron stars called pulsars orbiting each other.
Astronomer Heino Falcke plans to use a global network
of radio telescopes to snap the black hole at the Milky Way's heart
Astronomers captured the merging
of neutron stars in various types
of light, including ultraviolet, infrared and
radio waves (above), as well as via gravitational waves — a first.
If
astronomers act quickly, they can turn other instruments toward the point
of origin and record a rapidly fading afterglow
of x-rays, visible light and
radio waves.
Such an excess first emerged in the late 1960s and was mapped in 1981 by Glyn Haslam
of the Max Planck Institute for
Radio Astronomy in Bonn, Germany, but few
astronomers thought much
of it until now.
Those shifts would occur over years, but
radio astronomers already have 30 years
of data they can search through, she says.
SETI
astronomers are swinging their
radio dishes towards the star in the hope
of confirming the beacon, but have so far drawn a blank.
Last week at the American Astronomical Society's meeting,
astronomers announced the detection
of a second type
of radio static from the heavens, and although it may not come from an era quite as ancient as TV snow does, it may probe the period immediately afterward — an equally mysterious time when the first stars and black holes were lighting up.
«With ALMA we can see that there's a direct link between these
radio bubbles inflated by the supermassive black hole and the future fuel for galaxy growth,» said Helen Russell, an
astronomer with the University
of Cambridge, UK, and lead author on a paper appearing in the Astrophysical Journal.
«Astronomy really is about to explode across the African continent,»
astronomer Kartik Sheth
of the U.S. National
Radio Astronomy Observatory said January 9 at the 223rd meeting
of the American Astronomical Society near Washington, D.C..
Fast
radio bursts, which
astronomers refer to as FRBs, were first discovered in 2007, and in the years since
radio astronomers have detected a few dozen
of these events.
In fact, Swift X-ray and optical observations were carried out two days after FRB 131104, thanks to prompt analysis by
radio astronomers (who were not aware
of the gamma - ray counterpart) and a nimble response from the Swift mission operations team, headquartered at Penn State.
In February 2017, pinpointing the locations
of FRBs will become much easier for
astronomers with the commissioning
of the Deep Synoptic Array prototype, an array
of 10
radio dishes at Caltech's Owens Valley Radio Observatory in Califo
radio dishes at Caltech's Owens Valley
Radio Observatory in Califo
Radio Observatory in California.
This result helps
astronomers understand the workings
of the cosmic «thermostat» that controls the launching
of radio jets from the supermassive black hole.
AUSTIN, TEXAS — A freshly reprocessed image from 27
radio telescopes has given
astronomers their largest and clearest view yet
of the turbulent core
of the Milky Way.
The likeliest mechanism is the arrival
of a second massive black hole during a galaxy collision, say Merritt and his colleague,
radio astronomer Ron Ekers
of the Australia Telescope National Facility in Sydney.
The team also analyzed the
radio waves in a new way, revealing that what looked like individual bursts were actually composed
of many smaller sub-bursts, says
astronomer Andrew Seymour
of the Universities Space Research Association at Arecibo.
«If you have young magnetars that have just been born in supernova explosions, only a few decades old, they could be very bursty objects, have very violent youths, and that could give rise to repeating fast
radio bursts,» says
astronomer Brian Metzger
of Columbia University, who was not involved in the new study.
The display is «magnificent,» says
radio astronomer K. R. Anantharamiah
of the Raman Research Institute in Bangalore, India, who helped collect the original data during visits to New Mexico in the 1980s.
Ten years ago,
radio astronomers at the Very Large Array in Socorro, New Mexico — a Y - shaped bank
of telescopes made famous in the movie Contact — tried to capture this large region in a single image.
To sharpen that vision,
astronomers used the Very Long Baseline Array
of 10
radio telescopes spread across North America.
Astronomers are racing to figure out what causes powerful bursts
of radio light in the distant cosmos
Astronomers have known since 1968 that a pulsar — an ultradense neutron star left behind when the star's core collapsed — spins 30 times per second within the Crab's expanding cloud
of debris, emitting a lighthouse beam
of radio waves.
asks Tom Bania, a
radio astronomer at Boston University involved in some
of the southern surveys.
«The biggest mystery around fast
radio bursts is how such powerful and short - duration bursts are emitted,» says
astronomer Daniele Michilli
of the University
of Amsterdam.
Using the National Science Foundation's Very Long Baseline Array (VLBA), an interlinked system
of 10
radio telescopes stretching across Hawaii, North America and the Caribbean, the
astronomers have directly measured the distance to an object called G007.47 +00.05, a star - forming region located on the opposite side
of the galaxy from our solar system.
Now,
astronomers have overcome that problem by tracking bright spots
of radio emission from the Triangulum Galaxy — also known as M33 — which the new study locates at 2.4 million light years from Earth.
Using a jet
of radio waves,
astronomers have begun to map the other side
of the Milky Way.
In 1974,
astronomers Russell Hulse and Joseph Taylor detected a binary pulsar, a pair
of two dead stars emitting pulses
of radio waves.
«Since gamma ray bursts are usually so well behaved, this really stood out,» says
radio astronomer Dale Frail of the National Radio Astronomy Observatory in Soccorro, New Me
radio astronomer Dale Frail
of the National
Radio Astronomy Observatory in Soccorro, New Me
Radio Astronomy Observatory in Soccorro, New Mexico.
«Millisecond pulsars have extremely predictable arrival times, and our instruments are able to measure them to within a ten - millionth
of a second,» said Maura McLaughlin, a
radio astronomer at West Virginia University in Morgantown and member
of the NANOGrav team.
True,
astronomers still don't know the origins
of these extragalactic milliseconds - long
radio pulses, and until this year fewer than 20 had ever been detected.
Jodie Foster believably evokes the psychology
of a real scientist as rarely shown on screen when she plays Ellie Arroway, a dedicated
radio astronomer.
«One could think that the topic
of her own research work... is so fascinating and at the same time so difficult that one could work on it a life long,» Michael Grewing, an
astronomer retired from the Institut de
Radio Astronomie Millimétrique in Grenoble, France, writes in an e-mail to Science Careers.
Pinpointing the sources
of gravitational waves will allow
astronomers to point other telescopes their way, boosting the chances
of learning more about them via x-rays, gamma - rays,
radio waves, neutrinos and more.
«The era
of gravitational wave astronomy is upon us,» says
astronomer Scott Ransom
of the National
Radio Astronomy Observatory in Charlottesville, Va., who is not involved with LIGO.
Using the most powerful
radio telescope in the world, an international team
of astronomers has set out to look for answers in the star L2 Puppis.
Astronomers see them as steady pulses
of radio energy.
With its
radio link to Earth severed, Cassini's last «transmission» will be the light from this fireball, a modest blaze
of glory that
astronomers might glimpse from Earth.
Radio astronomers are truly in a Catch 22 - situation and they would not have the advantage that the optical
astronomers could gain from better use
of lighting.
Last week researchers reported they had traced a cosmic blast
of radio waves back to its source for the first time — but now another team
of fast - acting
astronomers has called the result into question.
Professor Andreas Wicenec, head
of the Data Intensive Astronomy team at the International Centre for
Radio Astronomy Research, said the limiting factor for radio astronomers used to be the size of the telescope and the hardware behin
Radio Astronomy Research, said the limiting factor for
radio astronomers used to be the size of the telescope and the hardware behin
radio astronomers used to be the size
of the telescope and the hardware behind it.
If the signals generated were transmitted only from the ground,
radio astronomers could seek remote sites and use the shielding property
of the Earth's curvature or the shelter
of hills.