First stars that formed after Big Bang identified
London, May 17: Japanese scientists have identified some of the first stars to form in the Universe just 250 million years after the Big Bang, according to a study published in Nature magazine.
Using the giant ALMA telescope in Chile, researchers were able to observe the distant galaxy MACS1149-JD1 when it was just 550 million years old, a time when it contained stars that were about 300 million years old, the study published on Wednesday said.
The galaxy's "red shift," a measurement technique that shows the distance to, and the age of astronomical objects, which was determined to be 9.1096, the largest value ever detected to date using spectral line analysis, Efe news reported.
The Japanese researchers arrived at that red shift measurement using the spectral lines of ionized oxygen insted of using ionized carbon, as is normally done in examining distant objects.
The results demonstrate the usefulness of ALMA as a tool for measuring the red shift of distant galaxies, Rychard Bouwens, an astrophysicist at Leiden University, said in another article in Nature.
The work of Takuya Hashimoto and his group at Osaka Sangyo University sheds light on the formation of the first stars and suggests that future telescopes - such as the James Webb Space Telescope, which will replace the Hubble 'scope in orbit starting in 2020 - could find new evidence on the formation of first-generation stars, Bouwens said.
Scientists believe that the Universe's first stars formed in regions of very dense matter, although understanding of that process is still limited.
Bouwens emphasised that it was still not clear whether the stellar activity detected in MACS1149-JD1 occurred in other regions in the early Universe, but he added that the discovery would spur similar studies of other galaxies.
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UP: Fake IAS officer marries woman, flees with Rs 15 lakh dowry
Gorakhpur (UP) (PTI): A newly married man fled with the Rs 15 lakh given to him as dowry by the bride's family, and it came to light later that he was an alleged serial scammer, police said on Sunday.
The accused, identified as Pritam Kumar Nishad from Etawah, allegedly posed as an IAS officer to deceive the woman into marrying him. He is currently absconding with his sister, and a case has been filed against him for cheating, dowry harassment, and forgery, officials said.
According to the police, the woman's family claimed that they spent nearly Rs 30 lakh for the wedding that was solemnised on March 11.
The match was arranged through a matrimonial group, where the accused introduced himself as an IAS officer, sharing purported interview clips, office visuals, and photographs with politicians to gain the family's trust.
Despite initially claiming he would marry without dowry, the accused allegedly demanded Rs 15 lakh shortly before the engagement. The bride's family paid Rs 10 lakh in cash during the engagement and the remaining Rs 5 lakh on the wedding day, the police said.
The fraud came to light on Saturday after the woman reached Etawah, and a wedding attendee informed the family that the accused was not a civil servant. When her relatives visited the address provided by him, they found her in a small rented room, while the accused and his sister had fled, the police added.
The woman has also alleged that the accused planned to take her to Goa and sell her, and accused him of inappropriate behaviour.
The police suspect that the accused may have been involved in multiple such marriages in the past. Based on a complaint lodged at the cantonment police station, an FIR was registered on Saturday evening.
Senior Superintendent of Police Dr Kaustubh said efforts are underway to arrest the accused.
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