Astronomy and Space News - Astro Watch: Missing Link in Planet Evolution Found

Advertisement

Thursday, January 31, 2019

Missing Link in Planet Evolution Found

Artist’s impression of the newly discovered object. Credit: Ko Arimatsu

For the first time ever, astronomers have detected a 1.3 km radius body at the edge of the Solar System. Kilometer sized bodies like the one discovered have been predicted to exist for more than 70 years. These objects acted as an important step in the planet formation process between small initial amalgamations of dust and ice and the planets we see today.

The Edgeworth-Kuiper Belt is a collection of small celestial bodies located beyond Neptune's orbit. The most famous Edgeworth-Kuiper Belt Object is Pluto. Edgeworth-Kuiper Belt Objects are believed to be remnants left over from the formation of the Solar System. While small bodies like asteroids in the inner Solar System have been altered by solar radiation, collisions, and the gravity of the planets over time; objects in the cold, dark, lonely Edgeworth-Kuiper Belt preserve the pristine conditions of the early Solar System. Thus astronomers study them to learn about the beginning of the planet formation process.

Edgeworth-Kuiper Belt Objects with radii from 1 kilometer to several kilometers have been predicted to exist, but they are too distant, small, and dim for even world-leading telescopes, like the Subaru Telescope, to observe directly. So a research team led by Ko Arimatsu at the National Astronomical Observatory of Japan used a technique known as occultation: monitoring a large number of stars and watching for the shadow of an object passing in front of one of the stars. The OASES (Organized Autotelescopes for Serendipitous Event Survey) team placed two small (28 cm) telescopes on the roof of the Miyako open-air school on Miyako Island, Miyakojima-shi, Okinawa Prefecture, Japan, and monitored approximately 2000 stars for a total of 60 hours.

Analyzing the data, the team found an event consistent with a star appearing to dim as it is occulted by a 1.3 km radius Edgeworth-Kuiper Belt Object. This detection indicates that kilometer sized Edgeworth-Kuiper Belt Objects are more numerous than previously thought. This supports models where planetesimals first grow slowly into kilometer sized objects before runaway growth causes them to merge into planets.

Arimatsu explains, “This is a real victory for little projects. Our team had less than 0.3% of the budget of large international projects. We didn’t even have enough money to build a second dome to protect our second telescope! Yet we still managed to make a discovery that is impossible for the big projects. Now that we know our system works, we will investigate the Edgeworth-Kuiper Belt in more detail. We also have our sights set on the still undiscovered Oort Cloud out beyond that.”

This research appeared in Nature Astronomy (Advanced Online Publication) on January 28, 2019 (K. Arimatsu et al. 'A kilometre-sized Kuiper belt object discovered by stellar occultation using amateur telescopes'). This research was made possible by grants-in-aid from the Japan Society for the Promotion of Science and the support of the Miyako open-air school and the local community in Miyakojima-shi.

Credit: nao.ac.jp

1 comment:

  1. GOD=7_4, 7/4=July 4th or 7 April GOD=GOOD=G-D=7_4 Dios47 Simple6,74 English7,74 Gematria8,74=G7+E5+M13+A1+T20+R18+I9+A1 - the key74: A1, B2…O15 or zero…Z26
    7 Classical Planets: 4 not naked-eyed in daylight/4 don’t cast shadows74 on Earth (Venus can), 7 planets w/o Earth – 4 gas/ice giants, Venus .7 & Mercury .4 AU, 4 lunar phases ~7 days (~7.4 days) each, ‘Λs Λbove, So Below’: 7 continents - 4 don’t touch equator/4 large land masses, 7 Seas/4 oceans, ~74% of Earth’s surface is liquid or frozen water. Buddha 7 weeks/4 Bodhi Tree & 4 Noble Truths. Genasis74 1:1 is 7 Hebrew words & 28 letters: God’s Signature. Royal cubits74 = 7 palms × 4 fingers. John447 the Baptist7 b 11.12.7 BC/747 AUC. Jesus74 b Sat. 4.17.6 BC/748, on Cross74 G7ood4 Friday74 4.7.30 AD/783**. 7 31 day months + 4 30 day mo. + February’s 28. Tawaf: circumambulate Kaaba 7×, 4 reg. New York7 City4 74°W. G & F clefs, 4/4, G Sol & D Rā. G. Washington’s 74 generals. Constitution’s 7 Articles on 4 pages, 74 delegates. 4 score & 7. Best 4-of-7. 74% hydrogen. FIG=6|7 Bible & Buddha Code - 4 is a given: seasons, cardinal points, LP, elements, forces, matter types, DNA building blocks, 4D spacetime.

    FOD=6_4 FOD=FOOD=F-D=6_4 W=Fd Genasis 6:4 “Nefilem64” YHWH64/GAOTU64/Israel64/Zion64/spell64/test64 Sain†63 Pe†e46r64, 64, d 10.13.64 AD
    Planet Nestor’s 6 Classical Planets: 4 can’t…inner planets at .6 & .4 and/or 6 & 4 AU, 4 lunar phases ~6 days (~6.4 days) each, lunar year 306 days, solar year 316 days, common cubits=6p•4f=17.76”, etc.

    “Identifying ‘True Earthlike Planets’ – All New Worlds Are Built On 7_4 (like Earth) Or 6_4” - NASA Conf. Missions for Exoplanets: 2010-2020, 4.21.09 Pasa. Rev 21:1, “A new heavens & a new earth”

    “In the beginning was the Word and the Word was with God/Fod and the Word was GOD/FOD.” – John47 1:1/Juan46 1:1, Founder (Fod.) of Plan-it Nestor. Design Worlds Theory/Theory of Everything

    This is Seal #2 of the http://7seals.blogspot.com .

    ReplyDelete