New research by Dr Ashok K. Singal suggests that the solar system is hurtling through space at a speed much higher than previously thought. The newly calculated speed might prove that the universe is not uniform on a large scale, as is portrayed by the cosmic microwave background radiation (CMBR), thermal radiation emitted shortly after the Big Bang.
The CMBR is not precisely uniform in all directions because the universe itself is not uniform. As our galaxy sweeps through the CMBR, this relative movement makes the sky look slightly hotter in the direction we are travelling. A tiny difference in CMBR temperature between two opposite directions in the sky previously suggested that the solar system has a speed of around 369 km/s. . However, few studies have investigated the irregularity in sky brightness due to radio emission from distant galaxies.
The researchers consulted 1.8 million radio sources from the US-based National Radio Astronomy Observatory VLA Survey catalogue while excluding radio signals coming from local cluster of galaxies known as the Virgo supercluster. The researchers considered what velocity would be required for an observer to detect irregularities in sky brightness matching those on Earth. They found that this velocity — the velocity of the solar system — is around four times that previously thought.
"The implication of this research is serious because any such anomaly implies anisotropy on a universal scale," says lead researcher Ashok K. Singal.
This would violate the cosmological principle, in which the isotropy of the universe is assumed for all epochs, he adds.
SOURCES: Singal, A. K. : ``Large peculiar motion of the solar system from the dipole anisotropy in sky brightness due to distant radio sources'' Astrophys. J. Lett. 742, L23 (2011)
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- #GAMERGATE Style Harassment Does Not Happen in the Male Dominated Sciences
- Climate Change: It’s Only Human To Exaggerate, But Science Itself Does Not
- From Mindless Physics To Physics Of Mind
- Should First Responders Use Acupuncture And Hypnosis During Disasters?
- 24 hours with Windows 10 on a Surface Pro 3
- How Mitochondria Began - Parasitic Coevolution Gets A New Wrinkle
- Not All Fat Is Equal: Amping Up Adenosine May Melt 'Love Handles'
- "This kind of nonsense is what I am not a fan of - unfortunately, because hypnosis works so infrequently..."
- "It's because scientists don't completely cram their lectures full of politics, blacklist people..."
- "Hank I found this link on Facebook and I see on your about me page you have written a book well..."
- "No correlation? 8 of the 10 wealthiest counties voted for the president in 2008 and 2012. And they..."
- "You think this bothers me? Both gamergate and anti-gamergate supporters are behaving in immature..."
- Natural Resources Defense Council sues EPA to block rollout of Dow Enlist Duo GMO system
- Enviros file suit to block new Dow AgroSciences GMO herbicide and seeds
- Couples can protect children from devastating mutations with new IVF methods
- Food 2.0: Will farmers be able to meet the ecological challenges ahead?
- General Mills’ Cascadian Farm launches ‘bee-friendly’ campaign, GMO critics unimpressed
- Can genes pass from genetically modified food into our blood, posing dangers?
- Viagra protects the heart beyond the bedroom
- Group B streptococcus incidence rises significantly among newborns
- Metabolic genetics research paves way to treating diabetes and obesity
- Myelin vital for learning new practical skills
- Found: 'hidden brain signatures' of consciousness in vegetative state patients