Starship Asterisk*

bystander wrote:

From top left, moving clockwise, the stars are: IRAS 03282+3035, CB230, IRAS 16253-2429, L1152, L483, HH270 VLA1. IRAS 03282+3035 and CB230 are the two known to have already formed binary stars. Infrared light with a wavelength of 3.6 microns has been color-coded blue; 4.5-micron light is green; and 8.0-micron light is red.

• ____ As You Like It Act 2, Scene 7
  
  JAQUES: All the world's a stage,
  . And all the men and women merely players:
  . They have their exits and their entrances;
  . And one man in his time plays many parts,
  . His acts being seven ages. At first the infant,
  . Mewling and puking in the nurse's arms.
  . And then the whining school-boy, with his satchel
  . And shining morning face, creeping like snail
  . Unwillingly to school. And then the lover,
  . Sighing like furnace, with a woeful ballad
  . Made to his mistress' eyebrow. Then a soldier,
  . Full of strange oaths and bearded like the pard,
  . Jealous in honour, sudden and quick in quarrel,
  . Seeking the bubble reputation
  . Even in the cannon's mouth. And then the justice,
  . In fair round belly with good capon lined,
  . With eyes severe and beard of formal cut,
  . Full of wise saws and modern instances;
  . And so he plays his part. The sixth age shifts
  . Into the lean and slipper'd pantaloon,
  . With spectacles on nose and pouch on side,
  . His youthful hose, well saved, a world too wide
  . For his shrunk shank; and his big manly voice,
  . Turning again toward childish treble, pipes
  . And whistles in his sound. Last scene of all,
  . That ends this strange eventful history,
  . Is second childishness and mere oblivion,
  . Sans teeth, sans eyes, sans taste, sans everything.

Our sun may be an only child, but most of the stars in the galaxy are actually twins. The sibling stars circle around each other at varying distances, bound by the hands of gravity.

How twin stars form is an ongoing question in astronomy. Do they start out like fraternal twins developing from two separate clouds, or "eggs"? Or do they begin life in one cloud that splits into two, like identical twins born from one egg? Astronomers generally believe that widely spaced twin, or binary, stars grow from two separate clouds, while the closer-knit binary stars start out from one cloud. But how this latter process works has not been clear.

New observations from NASA's Spitzer Space Telescope are acting like sonograms to reveal the early birth process of snug twin stars. The infrared telescope can see the structure of the dense, dusty envelopes surrounding newborn stars in remarkable detail. These envelopes are like wombs feeding stars growing inside -- the material falls onto disks spinning around the stars, and then is pulled farther inward by the fattening stars.

The Spitzer pictures reveal blob-like, asymmetrical envelopes for nearly all of 20 objects studied. According to astronomers, such irregularities might trigger binary stars to form.

New evidence from NASA's Spitzer Space Telescope is showing that tight-knit twin stars might be triggered to form by asymmetrical envelopes like the ones shown in this image. All stars, even single ones like our sun, are known to form from collapsing clumps of gas and dust, called envelopes, which are seen here around six forming star systems as dark blobs, or shadows, against a dusty background. The greenish color shows jets coming away from the envelopes. The envelopes are all roughly 100 times the size of our solar system.

Two of the six star systems are known to have already formed twin, or binary stars (Spitzer can see the envelopes but not the stars themselves). Astronomers believe that the irregular shapes of the envelopes, revealed in detail by Spitzer, might trigger binary stars to form, or might have already triggered them to form.

From top left, moving clockwise, the stars are: IRAS 03282+3035, CB230, IRAS 16253-2429, L1152, L483, HH270 VLA1. IRAS 03282+3035 and CB230 are the two known to have already formed binary stars.

Infrared light with a wavelength of 3.6 microns has been color-coded blue; 4.5-micron light is green; and 8.0-micron light is red.