Home / Software & Service News / Astronomers more accurately calculate the Milky Way’s mass

Astronomers more accurately calculate the Milky Way’s mass

It’s impossible to arrive at an exact measurement for the billions of stars and other objects that make up the Milky Way. However, a group of astronomers say they have calculated the most accurate estimate to date. In a paper that will be published in The Astrophysics Journal, the scientists estimate the mass of the Milky Way to be 9.5 x 1041 kilograms or 95 followed by 40 zeros. For reference, that’s 4.8 x 1011 times the mass of the sun. Astronomers use the so-called “solar masses” as a standard unit of measure, comparing other objects and formations to the sun.

The scientists used some super complex math and stats calculations to arrive at that estimate. More specifically, the team employed a combination hierarchical Bayesian analysis along with direct measurements of the velocity of globular clusters. Astronomers can estimate the mass of the sun by observing its gravitational pull on the Earth. The same can be done for the Milky Way by measuring its gravitational pull on those globular clusters. This new estimate includes stars, planets, moons, dust, dark matter and more that make up the galaxy.

Researchers say the key to this calculation is that they include any uncertainties in the estimate. Gwendolyn M. Eadie, a doctoral candidate at McMaster University in Hamilton, Ontario, explained to The New York Times that the methods used here could have wider implications for future research. The methods have been employed in other fields before, but they’re becoming more useful to astronomers now that computers have enough processing power to handle the complex calculations.

Via: The New York Times

Source: Cornell University Library

Click Here For Original Source Of The Article

About Ms. A. C. Kennedy

Ms. A. C. Kennedy
My name is Ms A C Kennedy and I am a Health practitioner and Consultant by day and a serial blogger by night. I luv family, life and learning new things. I especially luv learning how to improve my business. I also luv helping and sharing my information with others. Don't forget to ask me anything!

Check Also

AI Everywhere: Surprising ways we already interact with artificial intelligence

TwitterFacebook

Paid Content by

IBM

If someone were to say to you that you’ve spent all day interacting with artificial intelligence, you’d probably stop and try to recount any instances of accidentally running into a robot

Despite what’s constantly being hammered into our brains via science fiction movies and television, AI comes in many forms, which may surprise you. Not only has artificial intelligence become integrated within a number of industries, but it’s teaching people how to streamline business and optimize their lives.

From social media to public service, some people are interacting with artificial intelligence every single day and it may surprise you how broadly it is being adopted. Here are some ways we’re already using AI on the daily.  Read more...

More about Supported, Artificial Intelligence, Chatbot, Deep Learning, and Virtual Assisstant

css.php