Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Geoffrey Burbidge"'
Autor:
W. M. Napier, Geoffrey Burbidge
Publikováno v:
The Astrophysical Journal. 706:657-664
Following the discovery in the 1960s of radio and optical QSOs it was found that some of them lie very close to low-redshift (z ≤ 0.01) spiral galaxies with separations of 2 arcmin. These were discovered both serendipitously by many observers, and
Autor:
Geoffrey Burbidge
Publikováno v:
Annual Review of Astronomy and Astrophysics. 45:1-41
Autor:
Geoffrey Burbidge
Publikováno v:
Proceedings of the International Astronomical Union. 1:71-76
It is shown that there is no underlying basic theory which will lead to the idea that the lightest isotopes were produced in an early universe. Everything depends on the choice of the initial ratio of the energy density of photons to baryons that is
Publikováno v:
The Astrophysical Journal. 620:88-94
A strong X-ray source only 8" from the nucleus of the Sy2 galaxy NGC 7319 in Stephan's Quintet has been discovered by Chandra. We have identified the optical counterpart and show it is a QSO with $z_e = 2.114$. It is also a ULX with $L_x = 1.5 x 10^{
Autor:
Geoffrey Burbidge
Publikováno v:
The Astrophysical Journal. 603:28-35
Using interferometric methods, radio astronomers have shown that very rapid motions involving radio jets are detectable in a variety of active centers: the nuclei of low-redshift radio galaxies, QSOs and BL Lac objects, and active binary systems cont
This volume contains papers presented at an international conference to celebrate Fred Hoyle's monumental contributions to astronomy, astrophysics and astrobiology and more generally to humanity and culture. The contributed articles highlight the imp
Publikováno v:
The Astrophysical Journal. 591:690-694
The starburst / AGN galaxy M82 was studied by Dahlem, Weaver and Heckman using X-ray data from ROSAT and ASCA, as part of their X-ray survey of edge-on starburst galaxies. They found seventeen unresolved hard-X-ray sources around M82, in addition to
Autor:
Geoffrey Burbidge
Publikováno v:
The Astrophysical Journal. 586:L119-L122
It is pointed out that the Seyfert 1 galaxy NGC 6212 is surrounded by a large number of quasi-stellar objects (QSOs), including the very active and rapidly varying radio QSO 3C 345, which lies only 47 away from the center of the galaxy. There are two
Autor:
Geoffrey Burbidge
Publikováno v:
The Astrophysical Journal. 585:112-120
It is shown that the redshifts zo of ?-ray burst (GRB) sources, where they have been measured, together with the redshifts for seven quasars (QSOs) that lie very close to the positions of the unidentified sources GRB 990625, 000210, 001105 (two QSOs)
Autor:
Geoffrey Burbidge
Publikováno v:
Biographical Memoirs of Fellows of the Royal Society. 49:213-247
Fred Hoyle's paternal grandfather was George Hoyle, who came from Lancashire to settle in Gilstead, a village on the edge of the moors above the town of Bingley in West Yorkshire. He was interested in mathematics and chess, and reportedly had a mass