photospheric

Examples

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• Astronomers study the photospheric layer of the sun to understand solar phenomena.

• The Sun and similar stars exhibit abnormally low photospheric abundances of the element lithium.

  Academic text (2006)

• We infer such motions using changes in the position of a neutral, photospheric iron line.

  Academic text (2004)

• PHOTO (COLOR): Dynamic spectra of the Balmer Ha line of hydrogen (panel left) and of a photospheric, neutral iron line (panel right).

  Academic text (2004)

• The magnetic fields there restrain the motions of the matter and, in particular, keep convection from carrying energy to photospheric heights from lower, hotter levels.

  Academic text (1991)

• The combined data sets yield the surprising result that the visual brightness changes of ? Cas are, in fact, matched by Doppler shifts observed in the photospheric spectral lines about one hundred days earlier.

  Academic text (2004)

• For solar coronal loops (Figure 3), for example, rotation of individual photospheric magnetic elements proceeds more quickly than the braiding of several elements; but as mentioned earlier, twist tends to cancel.

  Academic text (1996)

• Estimates of the dipole strength and inclination obtained by these heliospheric measurements are complementary to those of the more complex photospheric magnetic fields recorded by magnetographs and to modeling of the solar heliospheric field.

  Blog text (30)

• The photospheric temperatures of stars determine their color and brightness.

Surface Forms

Morphology

Etymology