Astronomical Doppler effect

Usage examples of redshift.

If most quasars, as indicated by their extreme redshifts, were more than nine or ten billion light-years away in distance, then they also must be nine or ten billion years away in time, and therefore must belong to a past era of the universe.

Oilcan bitched that she was ripped off, because the detail job was so simple—gold pin striping—on a redshift paint job, but hell, it was perfection.

Since 1929, when Edwin Hubble formulated the law that redshift increases proportionally with distance, redshift has been the key to interpreting the size of the universe as well as being the prime evidence indicating it to be expanding from an initially compact object.

They asserted that the expansion of the universe and the redshift could be explained if it were assumed that single atoms of hydrogen were somehow coming into being constantly in the depths of spaceperhaps about one hydrogen atom per year in a volume of space equal to that of the Great Mosque.

Slipher (who, as is often the case in instances like this, was looking for something else) inferred from redshifts of the spectra of about a dozen galaxies in the vicinity of our own that the galaxies were moving away at speeds ranging up to a million miles per hour.

If the redshifts have been misunderstood, then inferred distances can be wrong by a factor of from 10 to 100, and luminosities and masses wrong by factors up to 10,000.

They’ve completely misconstrued the redshift evidence, thinking it indicates an expanding universe.

Its pronounced redshift on the spectrum made early Terran astronomers think it was much farther away than it had turned out to be.

Companion galaxies are found to be systematically redshifted with respect to the central galaxy, indicating them to be first-generation descendants.

All members of the group, including our galaxy, are redshifted with respect to M31, indicating it to be the source from which the rest were ejected as young, high-energy objects at some time.

Once more, every major companion to M81 is redshifted with respect to it.

It was the rearward blind spot, the blank disk that concealed a redshifted Sol.

At times the situation grew even more frustrating as the movement and gravity wells of the planets themselves introduced slight redshifting problems and microscopic time-dilation effects.

After all, at a gamma factor of, say, seventy thousand, a one-minute message would stretch out to seven weeks of ordinary time, to say nothing of the redshifting of the radio waves themselves to beyond the level of detectability.

I talked to an astrophysicist in NASA who believed that Halton Arp—excommunicated from American astronomy for presenting evidence contradicting the accepted interpretation of the cosmic redshifts that the Big Bang theory rests on—was "onto something.