What is the luminosity of 3C 273?
3C 273 is a quasar located in the constellation of Virgo….
| 3C 273 | |
|---|---|
| Redshift | 0.158339 ± 0.000067 |
| Distance | 2.443 Gly (749 Mpc) (luminosity distance) |
| Type | Blazar; Sy1 |
| Apparent magnitude (V) | 12.9 |
How do you identify 3C 273?
Finding and identifying 3C 273 The easiest way to locate 3C 273 is with a computerised GoTo telescope, or an instrument equipped with digital setting circles. Its J2000 coordinates are α=12h 29.1m, δ=+02° 03′ (α=12h 30.1m, δ=+01° 57′, J2019.
What is the redshift of 3C 273?
0.158
They measured the redshift — the shift in wavelength of the observed spectrum caused by the expansion of the universe — and found 3C 273 had a staggering redshift of 0.158, placing it nearly two billion light years distant.
Is 3C 273 a Blazar?
Given that 3C 273 was the first discovered quasar, it has been comprehensively studied in different wavelengths. The observations show that it is a blazars of the FSRQ subclass, highly variable from radio to gamma-rays.
How bright is quasar 3C 273?
3C273 is the brightest quasar known, about 5 trillion times as bright as the sun. Quasars are the most distant objects visible, and 3C273 is no exception at 3 billion light-years away.
How far away in light-years is 3C 273?
2.5 billion light years3C 273 / Distance to Earth
This image from Hubble’s Wide Field and Planetary Camera 2 (WFPC2) is likely the best of ancient and brilliant quasar 3C 273, which resides in a giant elliptical galaxy in the constellation of Virgo (The Virgin). Its light has taken some 2.5 billion years to reach us.
What is the brightest quasar?
3C 273
Although quasars appear faint when viewed from Earth, they are visible from extreme distances, being the most luminous objects in the known universe. The brightest quasar in the sky is 3C 273 in the constellation of Virgo.
How bright is a quasar?
Quasars emit energies of millions, billions, or even trillions of electron volts. This energy exceeds the total of the light of all the stars within a galaxy. The brightest objects in the universe, they shine anywhere from 10 to 100,000 times brighter than the Milky Way.
What does quasar stand for?
Quasi Stellar radio sources
Definition: Quasi Stellar radio sources, abbreviated QUASARS, are the most dynamic and far-off objects in a collective known as active galactic nuclei (AGN). These radiant sources were formed approximately twelve billion years ago.
What would happen if Earth was hit by a quasar?
If so, “we would all be dead.” It would cook the Earth’s surface with massive bursts of radiation called gamma rays, he said. Then, if it were close enough, the quasar would devour our planet, our sun, the whole solar system, in a matter of months, Schmidt said.
What galaxy is 3C 273 in?
NASA LOCATIONS This image from Hubble’s Wide Field and Planetary Camera 2 (WFPC2) is likely the best of ancient and brilliant quasar 3C 273, which resides in a giant elliptical galaxy in the constellation of Virgo (The Virgin). Its light has taken some 2.5 billion years to reach us.
Are quasars brighter than the sun?
At 600 trillion times brighter than the sun, the quasar smashes the previous record of the brightest one ever detected, which was only as bright as 420 trillion suns. “We don’t expect to find many quasars brighter than that in the whole observable universe,” says Fan.
What is quasar 3C 273?
Quasar 3C 273 is the first quasar redshift spectrum to be identified by Dr. Maarten Schmidt in 1963 with the Hale 200 inch (5.08 m) reflector at the Palomar Observatory . 3C_273 light travel-time is 1.98 Gyr based on H o = 73.00 km/sec/Mpc, Omega matter = 0.27, Omega vacuum = 0.73.
What does the 3C 273 spectrum look like?
Like all quasars, 3C 273 has a relatively flat continuum, indicating the high temperature of the continuum source. Also like most quasars (but unlike many blazars!) 3C 273 has emission lines in its spectrum, the brightest of which are the Balmer lines of hydrogen; the rest frame wavelengths of H-α and H-β are 6563Å and 4862Å.
What can we learn from the long-term light curve of 3C 273?
The long-term light curve of 3C 273 has helped quasar theorists understand the behavior of these objects, and we urgently want the visual community to keep up the good work!
Is 3C 273 a variable object?
Harlan J. Smith, who, with Dorrit Hoffleit, used the Harvard Plate Stacks to investigate the historical behavior of 3C 273. (Credit: Ohio County Public Library, Wheeling, WV). Two papers appeared shortly after the Nature series indicating that this distant, bright object was actually variable on detectable timescales.