In A Galaxy Far Far Away, Astronomers Make Stellar Discovery
Andromeda is the nearest ‘large’ galaxy to the Milky Way, at 2.5 million light years away. Its size and disc-like structure is similar to the Milky Way, and it’s often referred to as our companion galaxy. The next closest large galaxy is 10 million light years away.
This new study observes 13 smaller satellite galaxies orbiting around the immense Andromeda galaxy in a way similar to how the planets in our solar system orbit around the sun. The galaxies are orbiting on a thin, pancake-like plane at a scale 900 million times larger than our own solar system.
The immense Andromeda galaxy, also known as Messier 31 or simply M31, is captured in full in this new image from NASA’s Wide-field Infrared Survey Explorer, or WISE. The mosaic covers an area equivalent to more than 100 full moons, or five degrees across the sky. WISE used all four of its infrared detectors to capture this picture (3.4- and 4.6-micron light is colored blue; 12-micron light is green; and 22-micron light is red). Blue highlights mature stars, while yellow and red show dust heated by newborn, massive stars.
“These dwarf galaxies appear to have formed together in the structure, and our analysis is showing their stars seem to have formed at a similar epoch in the early universe,” says Peter Smith, a Dalhousie University graduate student who works on follow up research.
The Lambda-Cold Dark Matter (Lambda-CDM) model struggles to explain the formation of these thirteen satellite galaxies orbiting around Andromeda. The Lambda-CDM is a standard model in astrophysics that assumes galaxies collide and merge with one another to grow mass.
“This tells us that this hierarchical buildup that gravitational simulations predict isn’t quite right—as structures like this ‘andromeda pancake’ never happen in the simulations. We may not understand gravity as well as many would like to believe. It’s very hard to test gravity in the very weak field limit,” explains Dr. Scott Chapman, a co-author of the study and a professor at Dalhousie University.
The discovery also lends support to theories on how satellite galaxies are orbiting around the Milky Way, which is a much harder activity to observe given the earth’s position within it—the galaxy itself blocks our view.
The researchers are working on a followup study that will explore how the orbital system formed the way that it did, working on the hypothesis that all thirteen galaxies must have formed at the same time within the same structure billions of years ago.
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Lion’s Mane Mushroom
Mushrooms are having a moment. One fabulous fungus in particular, lion’s mane, may help improve memory, depression and anxiety symptoms. They are also an excellent source of nutrients that show promise as a therapy for dementia, and other neurodegenerative diseases. If you’re living with anxiety or depression, you may be curious about all the therapy options out there — including the natural ones.Our Lion’s Mane WHOLE MIND Nootropic Blend has been formulated to utilize the potency of Lion’s mane but also include the benefits of four other Highly Beneficial Mushrooms. Synergistically, they work together to Build your health through improving cognitive function and immunity regardless of your age. Our Nootropic not only improves your Cognitive Function and Activates your Immune System, But it benefits growth of Essential Gut Flora, further enhancing your Vitality.
Our Formula includes:
Lion’s Mane Mushrooms which Increase Brain Power through nerve growth, lessen anxiety, reduce depression, and improve concentration. Its an excellent adaptogen, promotes sleep and improves immunity.
Shiitake Mushrooms which Fight cancer cells and infectious disease, boost the immune system, promotes brain function, and serves as a source of B vitamins.
Maitake Mushrooms which regulate blood sugar levels of diabetics, reduce hypertension and boosts the immune system.
Reishi Mushrooms which Fight inflammation, liver disease, fatigue, tumor growth and cancer. They Improve skin disorders and soothes digestive problems, stomach ulcers and leaky gut syndrome.
Chaga Mushrooms which have anti-aging effects, boost immune function, improve stamina and athletic performance, even act as a natural aphrodisiac, fighting diabetes and improving liver function.
Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules. Today Be 100% Satisfied Or Receive A Full Money Back Guarantee Order Yours Today By Following This Link.
| Online: | |
| Visits: | 1,608,529,274 |
| Stories: | 8,164,837 |
Whistler Blowers, Insiders
