Quantcast

Latest Bipolar outflow Stories

Complex Outflow Structure Revealed In The Binary UY Aurigae
2014-05-21 03:43:00

National Astronomical Observatory of Japan An international team of astronomers, led by Dr. Tae-Soo Pyo (Subaru Telescope, NAOJ), has revealed a complicated outflow structure in the binary UY Aur (Aurigae). The team observed the binary using the Gemini North"s NIFS (Near-Infrared Integral Field Spectrometer) with the Altair adaptive optics system. The team found that the primary star has a wide, open outflow, while the secondary star has a well-collimated jet. Because many stars form...

Bipolar Jets Of Gas, Dust Created By Small Planetary Nebulae
2014-02-13 08:01:47

April Flowers for redOrbit.com - Your Universe Online Large stars can end their lives as violently cataclysmic supernovae. Small stars, in contrast, end up as planetary nebulae—colorful, glowing clouds of dust and gas. These nebulae were once thought to be mostly spherical. In the last few decades, however, they have been observed to often emit powerful, bipolar jets of gas and dust. Scientists are unsure how spherical stars evolve to produce highly aspherical planetary nebulae, however....

Infrared Telescope Finds Impossible Binary Stars
2012-07-05 14:31:31

Lee Rannals for redOrbit.com - Your Universe Online Astronomers have discovered four pairs of stars that orbit each other in less than four hours, according to findings published in the journal Monthly Notices of the Royal Astronomical Society. Using the United Kingdom Infrared Telescope (UKIRT) in Hawaii, astronomers observed something scientists thought couldn't exist. It was always thought that if binary stars form too close to each other, they would end up merging into one...

New Hubble Image Shows Space Geyser
2012-07-03 14:32:32

Lee Rannals for redOrbit.com - Your Universe Online The Hubble Space Telescope has unleashed a new image of a geyser of hot gas flowing from a newborn star. In the new image, Herbig-Haro 110 is seen showing off a turbulent streamer of gas, streaking across the picture. "Resembling a Fourth of July skyrocket, Herbig-Haro 110 is a geyser of hot gas from a newborn star that splashes up against and ricochets from the dense core of a cloud of molecular hydrogen," NASA said....

Spitzer Telescope Finds Hidden Jet
2012-03-02 04:03:59

NASA's Spitzer Space Telescope took this image of a baby star sprouting two identical jets (green lines emanating from fuzzy star). The jet on the right had been seen before in visible-light views, but the jet at left -- the identical twin to the first jet -- could only be seen in detail with Spitzer's infrared detectors. The left jet was hidden behind a dark cloud, which Spitzer can see through. The twin jets, in a system called Herbig-Haro 34, are made of identical knots of gas and dust,...

Hubble Provides Unprecedented View Of Supersonic Jets From Young Stars
2011-09-01 05:50:01

  Astronomers have combined two decades of Hubble observations to make unprecedented movies revealing never-before-seen details of the birth pangs of new stars. This sheds new light on how stars like the Sun form. Stars aren´t shy about sending out birth announcements. They fire off energetic jets of glowing gas travelling at supersonic speeds in opposite directions through space. Although astronomers have looked at still pictures of stellar jets for decades, now they can...

7f21b74ada1079ef1a393a7c2d1bf69b
2011-04-05 08:20:00

Astronomers have discovered that two symmetrical jets shooting away from opposite sides of a blossoming star are experiencing a time delay: knots of gas and dust from one jet blast off four-and-a-half years later than identical knots from the other jet. The finding, which required the infrared vision of NASA's Spitzer Space Telescope, is helping astronomers understand how jets are produced around forming stars, including those resembling our sun when it was young. "More studies are needed to...

e3c27942a1c74c43fd3ea74463c6eacd1
2008-12-03 09:25:00

Astronomers have uncovered strong evidence that brown dwarfs form like stars. Using the Smithsonian's Submillimeter Array (SMA), they detected molecules of carbon monoxide shooting outward from the object known as ISO-Oph 102. Such molecular outflows typically are seen coming from young stars or protostars. However, this object has an estimated mass of 60 Jupiters, meaning it is too small to be a star. Astronomers have classified it as a brown dwarf. Brown dwarfs are on the dividing line...

0c7478f943697e0a0f1d3430c21f48e81
2007-07-23 11:23:07

University of Arizona astronomers who are probing the oxygen-rich environment around a supergiant star with one of the world's most sensitive radio telescopes have discovered a score of molecules that include compounds needed for life. "I don't think anyone would have predicted that VY Canis Majoris is a molecular factory. It was really unexpected," said Arizona Radio Observatory (ARO) Director Lucy Ziurys, UA professor of astronomy and of chemistry. "Everyone thought that the interesting...

80ee9ce9157d0bc74fe2317ca69f39de1
2007-05-23 09:25:00

VLT Finds Smallest Galactic Object with Jets Jets of matter have been discovered around a very low mass 'failed star', mimicking a process seen in young stars. This suggests that these 'brown dwarfs' form in a similar manner to normal stars but also that outflows are driven out by objects as massive as hundreds of millions of solar masses down to Jupiter-sized objects. The brown dwarf with the name 2MASS1207-3932 is full of surprises Its companion, a 5 Jupiter-mass giant, was the first...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.