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The John Batchelor Show

2/2: #HOTELMARS: THE FIRST STARS (POPULATION III) AND A DESCENDANT IN THE MILKY WAY.. Ioanna Koutsouridou, University of Florence. David Livingston, SpaceShow.co

The John Batchelor Show

John Batchelor

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4.52.8K Ratings

🗓️ 26 January 2024

⏱️ 5 minutes

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2/2: #HOTELMARS: THE FIRST STARS (POPULATION III) AND A DESCENDANT IN THE MILKY WAY.. Ioanna Koutsouridou, University of Florence. David Livingston, SpaceShow.com
https://www.researchgate.net/profile/Ioanna-Koutsouridou-2
https://www.researchgate.net/publication/374381276_Characterising_the_true_descendants_of_the_first_stars

1682 Paris Observatory

Transcript

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0:00.0

I'm John Batscher with Joanna Kutzurudu, who it Rido, who is a professor of physics and astronomy at the University of Florence.

0:13.0

She and her team have discovered a descendant of the original population three star,

0:19.0

the first stars for massive, huge things, that eventually exploded and created everything more

0:25.9

more on the periodic table than helium so-called metals.

0:29.5

Professor an unlimited budget I know that you fight for telescope time, you book months ahead of time,

0:35.5

you make your proposals. We're giving you an unlimited budget so you don't have to worry about all that.

0:39.8

You can buy the time you want. What happens next with you and your team? Thank you.

0:46.2

So what we have seen with this study is that given only one descendant of a population three star we can have so much information on the

0:56.2

mass on the masses of the first stars and their properties so imagine if what we could

1:01.1

do if we had more stars, basically.

1:04.0

So the first point is to have to enlarge the catalog of very metal-pur stars with very high quality spectra that we have.

1:15.0

And then as a theorist myself, I would devote a large part of this budget to produce more sophisticated models that we need in order to

1:31.5

interpret the data that we are having and we are expected to have in the future.

1:38.2

You would take a budget to produce more models.

1:41.0

Does that mean hiring people? Does that mean more, more, more, more names on the chart you need a bigger team we need a bigger team

1:47.6

we need a bigger team yes to produce a stellar revolution models and the galaxy formation models in order to interpret the data that we are

1:56.4

expected to have in the following years.

1:58.9

David, you have a question. Go ahead David.

2:01.8

Is this a fairly common field of study in astronomy, so if you wanted to enlarge your team,

2:10.0

it would be relatively easy to find new members for your team?

2:15.0

This is becoming actually a popular field these years,

2:19.7

because also in the following years

...

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