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?
- Getting Married
- The Three Cubes Problem
- Anomaly! At 35% Discount For Ten More Days
- Debunked: World To End After Two Snowy Days In Salento, Puglia, Southern Italy, Tears On Macedonia Icon
- Eugene Cernan, Hometown Astronaut of Bellwood Illinois dead at 82.
- Electromagnetic Mayhem
- Biomarkers Predict How Well People Age
- "I don't know why my comment's formatting was lost in the transmission, so that it is now one big..."
- "“If you don't use probabilities then how else do you do it? At any rate that's not a criticism..."
- "Tomasso, Congratulations, may you enjoy a long and happy life together with Kalliopi! Best regards..."
- "Found another one : http://www.dailystar.co.uk/news/latest-news/545975/end-of-the-world-Gods-vengeance..."
- "Thanks :). Actually there are so many fake doomsday red top tabloid stories that I tend to wait..."
- Stink Bugs Add the Flavor of Cilantro to Red Wine
- When Mating, an Insect That Makes Rational Choices
- If You Think Fentanyl Is Bad...
- Let's Learn a Lesson from Theranos
- Guardians of Truth: Mike Huckabee Lauds Us, We Ruin Things for RFK Jr., And More Media Links
- Massachusetts Becomes the 20th State Where Naturopaths Can Hurt You