Investigate Nara chopsticks tomb tumulus See through with elementary particles from space Himaiko's tomb theory was also 17:50 on January 9

Although there is a theory that the grave of Himiko, the queen of Jimatai, is not known at all, an investigation into the inside of a chopstick tomb in Sakurai City, Nara Prefecture, using elementary particles falling from space, was conducted. Have been

The Chopstick Grave Burial Tumulus in Sakurai City is a large rear tumulus with a total length of about 280 meters. Some scholars claim that the tomb is the grave of Himiko, the queen of Yambadai, but the Imperial Household Agency manages the tomb as a burial tomb where the royal family was buried, so no internal structure is known.

Therefore, the Nara Prefectural Kashihara Archeology Research Institute revealed on December 9 that it has been conducting a survey to determine the internal state without excavation since December.

This study uses an elementary particle called "muon" falling from space to see through the interior like an X-ray.

It was also used in a survey conducted at the Egyptian pyramids, which led to the discovery of a huge unknown space.

`` It's very helpful to know where and how many burial facilities are located in this survey, and in what direction, '' said archaeologist and honorary director Taichiro Shiraishi of the Osaka Prefectural Asuka Museum. And see if they can get clues to find the buried person.

What is a "muon" survey?

"Muon" is a type of elementary particle created by colliding with the atmosphere. Particles of "cosmic rays" flying in the universe are pouring in large quantities on the ground.

Since it has the property of passing through various substances, observing muons that pass through tumuli, etc., makes it possible to see through the internal structure, as in an X-ray photograph.

In addition to the magma inside the volcano and the survey of TEPCO's Fukushima Daiichi Nuclear Power Plant, the survey method revealed that an unknown space is inside the survey of the Egyptian pyramids.

Two years ago, an investigation into a tumulus led to the identification of a cavern that appeared to be the "Ishimuro", which was used at the "Kasuga Kofun" in Ikaruga-cho, Nara Prefecture, and housed a herb.

About chopsticks tomb

The Chopstick Grave Burial Mound is a large 280-meter-long front tumuli in Sakurai City, Nara Prefecture. It is thought to have been built in the middle and late 3rd centuries, and is considered a model of a keyhole-shaped tumulus that spread throughout the country from this area.

Researchers have also stated that the chopstick grave tumulus is located at the Makimuku Ruins, one of the most promising sites in Jimadai, and that it is the tomb of Queen Himiko. Is.

On the other hand, the Imperial Household Agency manages the tombs of chopstick tombs as graves of Emperor Hyorei's princess, Yamato, Totohi, and Momosohime. I do not admit.

For this reason, it is hoped that if the state of the stone room where the knots were placed in this survey is known, it will be a clue to search for the buried person.

The significance of the tomb survey

The Mausoleum is managed by the Imperial Household Agency as a place where successive emperors, empresses, and royal families have been buried, and is, in principle, prohibited from entering for the purpose of "keeping peace and dignity."

In response, a group of archeologists and researchers in Japanese history demanded that they be open to the public as "a valuable cultural property in elucidating the structure of the nation," and entry was granted in 2008.

However, since it is not possible to excavate and collect earthenware, expectations are high for investigations using muons, which can be used to grasp the inside of a tumulus without altering the tumulus.

Former research director Kiyohide Nishifuji of the Kashihara Archeology Research Institute, who is involved in the survey, said, "This research method is effective for ancient burial mounds where humans cannot enter, and can be applied to many burial mounds if successful."