- Target acquired🔍
- The Quasar 3C 273🔍
- Observations of 3C 273🔍
- Observations of 3C 273 with the Goddard High Resolution ...🔍
- 30 years of multi|wavelength observations of 3C 273🔍
- Detailed ultraviolet observations of the quasar 3C 273 with IUE🔍
- COMPTEL observations of the quasars 3C 273 and 3C 279.🔍
- Parkes and 3C273🔍
Observations of 3C 273
Target acquired: Observe Quasar 3C 273 - Astronomy Magazine
What 3C 273 offers instead is the chance to see the most distant object visible through a modest telescope. The photons that travel down your ...
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 ...
It was the first quasar ever to be identified and is the visually brightest quasar in the sky as seen from Earth, with an apparent visual magnitude of 12.9.
Observations of 3C 273 - IOPscience
Contemporaneous IUE, EUVE, and High-Energy Observations of 3C 273. E. RAMOS AND M. KAFATOS. Center for Earth Observing and Space Research Institute for ...
Observations of 3C 273 with the Goddard High Resolution ...
The observations of the quasar 3C 273 taken with the Goddard High Resolution Spectrograph in 1991 February are presented here. We have included both the ...
30 years of multi-wavelength observations of 3C 273
We present a wide multi-wavelength database of most observations of the quasar 3C273 obtained dur- ing the last 30 years. This database is the most complete set ...
Observing 3C 273 is a lot like observing Pluto. In both cases, you'll only see a faint point of light, but the observations are meaningful.
Detailed ultraviolet observations of the quasar 3C 273 with IUE
Abstract. We have obtained nine spectra of the quasar 3C 273 with the International Ultraviolet Explorer with the aim of combining them and obtaining a hig.
COMPTEL observations of the quasars 3C 273 and 3C 279.
When the COMPTEL data are combined with contemporaneous data from other instruments 3C 273 exhibits a softening of its spectrum at high energies, with the ...
Parkes and 3C273 - CSIRO Parkes Observatory
Using the 200-inch Mount Palomar telescope, Schmidt obtained a spectrum of the source which indicated that 3C 273 had a red-shift of 16%. If this red-shift was ...
EGRET observations of 3C 273 - NASA Technical Reports Server
The quasar 3C 273 was detected by COS-B in the 1970's. EGRET observations of this sky region in June and October 1991 revealed a flux from 3C 273 lower than ...
Seek out 3C 273, the brightest optical quasar, in the spring sky
It is the extremely luminous core of an active galaxy powered by a supermassive black hole and lies a staggering 2,443 million light-years ...
30 years of multi-wavelength observations of 3C 273 - NASA/ADS
We present a wide multi-wavelength database of most observations of the quasar 3C 273 obtained during the last 30 years. This database is the most complete ...
MERLIN radio observations of the quasar 3C 273 - Oxford Academic
Abstract. MERLIN observations of the radio jet of the quasar 3C 273 at 408 and 1666 MHz are presented. Most of the important features previously seen at 40.
Simultaneous observations of the quasar 3C 273 with INTEGRAL ...
INTEGRAL has observed the bright quasar 3C 273 on 3 epochs in January 2003 as one of the first observations of the open programme.
Multiwavelength Observations of 3C 273 - IOPscience
ABSTRACT ... -ray emission of active galactic nuclei were performed to the multiwavelength spectrum of 3C 273. All three models are able to represent the basic ...
The bright quasar 3C 273 is one of the best studied active galactic nuclei (AGN) in all spectral bands. The aim of this site is to provide a ...
Quasar 3C 273 - General Observing and Astronomy - Cloudy Nights
3C 273 is much brighter than Q1634+706. I would guess it should be visible in a 4-inch scope in pristine skies or in an 8-inch scope under typical suburban ...
The most distant astronomical object ever seen… in 1962 - Syfy
But far more luminous ones are known, some that positively dwarf 3C273. We've come a long way since those first observations in the early 1960s.
[astro-ph/0312148] XMM-Newton observations of 3C 273 - arXiv
Abstract: A series of nine XMM-Newton observations of the radio-loud quasar 3C 273 are presented, concentrating mainly on the soft excess.