A Fluffy Disk Around A Baby Star
Astronomers from the Strategic Exploration of Exoplanets and Disks with Subaru Telescope (SEEDS) project, an effort to search out other worlds, has turned its attention to a somewhat unusual source. Using the Subaru Telescope’s High Contrast Instrument for the Subaru Next Generation Adaptive Optics (HiCIAO), scientists were interested in a young star known as Ry Tau (Tauri) located some 460 light-years from Earth.
Around this recently formed star orbits a disk of gas and dust – what astronomers call a proto-planetary disk. The idea is that what researchers are seeing is the remnant of the interstellar gas cloud that formed the star and is now a breading ground for planets.
The international team found the disk has a radius of about 70 astronomical units (one astronomical unit is equal to the average distance from the Sun to the Earth) around the half million-year-old star. Using the scattered light from the disk, astronomers were able to study the structure of the disk. Based on simulations, they found the observed structure is quite different from other examples of similarly aged young stars with disks.
Instead, the team believes the scattered infrared light is emanating from a fluffy upper layer which is nearly transparent, but not quite. They estimate the amount of dust in this layer is roughly equal to half the mass of our Moon. This sounds like a lot, but given the size of the disk, the matter is spread out over an enormous distance.
The perplexing question is why is this layer of matter present in the case of Ry Tau and not in others? Likely it is a remnant of the dust that typically falls onto the star early in its formation, but for some reason has not yet dissipated. It is also possible this thin layer will have some effect on planetary formation.
Forthcoming observations by the Atacama Large Millimeter/Submillimeter Array (ALMA) on these types of objects will shed some light on the subject. This project will allow astronomers to more closely study the ongoing formation of planets within these disks. Perhaps a connection can be found between these fluffy layers and the types or numbers of planets formed.
redOrbit.com
offers Science, Space, Technology, Health news, videos, images and
reference information. For the latest science news, space news,
technology news, health news visit redOrbit.com frequently. Learn
something new every day.\”
Source: http://www.redorbit.com/news/space/1112932600/fluffy-disk-around-a-baby-star-082713/
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.
Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world. 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 PRODUCT
Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules
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.
| Visits: | 1,707,980,582 |
| Stories: | 8,449,162 |
Whistler Blowers, Insiders
