2 years, 9 months ago
Is there a central position in the Universe? Is there evidence that the central position is very hot?
Are there super stars?
Separate topics with commas, or by pressing return. Use the delete or backspace key to edit or remove existing topics.
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$1 Answer
It would be more correct to say that there is a central plane in the universe (see below). And it is detected as very small fluctuations in cosmic microwave background radiation (CMB), have an amplitute of roughly 3.4 degrees mKelvin. This microwave radiation was released approximately 380,000 years after the birth of the universe. These temperature fluctuations are minute: one part of the sky might have a temperature of 2.7251 Kelvin (degrees above absolute zero), while another part might have a temperature of 2.7249 Kelvin, temperatures which are slightly above absolute zero.
Discovery CMB radiation was made by Arno Penzias and Robert Wilson in 1965, although the first observations of it were made by Theodore Dunham and Walter Adams in 1937.
The Cosmic Background Explorer (COBE) was launched (by NASA) in 1989 with the goals of mapping and determining the spectral form the the CMB (and the IR background). By measurement of microwave radiation with a differential microwave radiometer, the CMB was found to have an amplitude of 3.372 +/- 0.007 mK, confirming dipole anisotropy (DA) (that is, having a dipolar difference in the CMB radiation that correlates with a change of direction in the universe).
http://www.jca.umbc.edu/~george/images/cosmology/dipole_cobe.jpg
The detection of the DA was an important confirmation of expectations regarding the motion of the Local Group. However, a main goal of the COBE DMR was to seach for other (more subtle) structures in the CMB, further relics of the Big Bang at the surface of last scattering. Correcting the COBE DMR map for the DA reveals structure:
* emission from the Galactic Plane
(along the center of the image)
http://www.jca.umbc.edu/~george/images/cosmology/cobe_dmr_no_da.gif
Currently, NASA scientists are using the The Wilkinson Microwave Anisotropy Probe (WMAP) mission to do further research on the conditions as they existed in the early universe by measuring the properties of the cosmic microwave background radiation over the full sky. WMAP creates a picture of the microwave radiation using differences in temperature measured from opposite directions
Discovery CMB radiation was made by Arno Penzias and Robert Wilson in 1965, although the first observations of it were made by Theodore Dunham and Walter Adams in 1937.
The Cosmic Background Explorer (COBE) was launched (by NASA) in 1989 with the goals of mapping and determining the spectral form the the CMB (and the IR background). By measurement of microwave radiation with a differential microwave radiometer, the CMB was found to have an amplitude of 3.372 +/- 0.007 mK, confirming dipole anisotropy (DA) (that is, having a dipolar difference in the CMB radiation that correlates with a change of direction in the universe).
The detection of the DA was an important confirmation of expectations regarding the motion of the Local Group. However, a main goal of the COBE DMR was to seach for other (more subtle) structures in the CMB, further relics of the Big Bang at the surface of last scattering. Correcting the COBE DMR map for the DA reveals structure:
* emission from the Galactic Plane
(along the center of the image)
Currently, NASA scientists are using the The Wilkinson Microwave Anisotropy Probe (WMAP) mission to do further research on the conditions as they existed in the early universe by measuring the properties of the cosmic microwave background radiation over the full sky. WMAP creates a picture of the microwave radiation using differences in temperature measured from opposite directions
You can leave an optional "tip" with Mahalo's virtual currency, Mahalo Dollars. If you are asking a difficult question that might require some research, or if you'd like a wide variety of feedback, a higher tip often leads to more answers to your question.
M$Report Abuse
