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Centaurus X-3 (4U 1118–60) is an X-ray pulsar with a period of 4.84 seconds. It was the first X-ray pulsar to be discovered, and the third X-ray source to be discovered in the constellation Centaurus.
It is radiating 3.3 times the luminosity of the Sun from its photosphere at an effective temperature of 6,435 K. [2] 45 Boötis is a source of X-ray emission. [ 10 ] There is a magnitude 11.53 visual companion at an angular separation of 103.50 ″ along a position angle (PA) of 40°, as of 2012.
For example, it is not clear that enough matter can be accreted by a white dwarf, at the distance of the purported secondary star implied by the orbital period, sufficient to power an X-ray emission of nearly 10 33 erg/s or 100 YW. A neutron star could easily power this X-ray flux, but X-ray emission from neutron stars is known to be non ...
The X-ray spectrometer aboard ISEE-3 was designed to study both solar flares and cosmic gamma-ray bursts over the energy range 5-228 keV. The experiment consisted of 2 cylindrical X-ray detectors: a Xenon filled proportional counter covering 5-14 keV, and a NaI(Tl) scintillator covering 12-1250 keV.
Theta Hydrae, Latinized from θ Hydrae, is a binary star [8] system in the constellation Hydra.It is visible to the naked eye with an apparent visual magnitude of 3.9. [2] The star system has a high proper motion [8] with an annual parallax shift of 28.4 mas, [1] indicating a distance of about 115 light years.
V905 Sco in comparison to other LBVs and cool hypergiants. V905 Sco has a peculiar variable spectral type with emission lines and P Cygni profiles.At visual maximum it is similar to an A9 star and at minimum close to B8. [5]
high-mass X-ray binary, V max = 9.7 m, V min = 9.9 m: SV Cep: SV: 22 h 21 m 33.20 s +73° 40′ 27.1″ 10.35: A2IVe: UX Ori star, V max = 10.35 m, V min = 12.15 m: V354 Cephei: V354: 22 h 33 m 35 s +58° 53′ 45″ 10.90: 9000: M2.5 Iab: One of the largest known stars; slow irregular variable, V max = 10.82 m, V min = 11.35 m: DO Cep: DO ...
Download QR code; Print/export ... (from Music Xray company) Sonic Visualiser; ... FastTracker 2 (PC, 1994) Impulse Tracker (PC, 1995) Name