2013 Student All-Stars Two

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Learning new things everyday!

Written By: Jessica Mendoza - Jul• 18•13

Today I learn so many new things, I learn a lot about Gamma Ray thanks to Dieter Hartmann, we Skype with him and he was a great man. I learn that Gamma Ray can’t pass to Earth because when Gamma ray reaches our atmosphere it absorbs it, so now I know that it’s not possible to touch us. But Gamma Ray can kill living cells. They’re produce by the hottest regions of the universe, also by supernova explosions. Photoelectric absorption when an incoming gamma ray transfers all of its energy to an atomic electron.

Today we also explore Galaxy Zoo it is a very fun website, plus we are helping astronomers classifying galaxies which is really helpful for them because this way they can get rid of galaxies that are useless. Although I have fun looking at galaxies I got stuck in this weird image, can anybody help me?





Day 4

Written By: Lena Sarhan - Jul• 18•13

Today we did some interesting things. First the group listened to Professor Hartman discussing everything gamma ray. He explained that strong magnetic fields supply the power to generate gamma rays. I also learned that there are various sources for gamma rays. An interesting act I learned is that gamma rays are full of energy that if there was a mirror, the gamma ray would not be reflected, but it will penetrate the mirror and be absorbed. Today we also classified galaxies using the galaxy zoo. We are participating in a scientific study. We get to add to the database! It’s pretty awesome!!! Can’t wait to continue tomorrow!!!!’

Gamma rays

Written By: Tho Nguyen - Jul• 18•13

Today we had a talk with professor Hartmann. Although we did not meet in person, he is such a nice man with a capability of explanation. He answered students and teachers’ questions very clearly. We’ve learned a lot today. We know what gamma ray is, gamma ray source, and its impact on life as well as human being.

Post your follow-up questions for Dieter Hartmann here

Written By: Julia Brazas - Jul• 18•13

You can put them in as  Comments to this post.

Day Four

Written By: Sydney Ford - Jul• 18•13

Today’s conversation was with Dieter Hartmann on Gamma Rays and Gamma Ray Bursts.



Mr. Hartmann

Written By: Sariaya Phillips - Jul• 18•13

Today I listened to a very intellectual conversation with Mr. Hartmann and my classmates… Here’s a little sneak peak!image

Professor Dieter Hartman

Written By: Lena Sarhan - Jul• 18•13

I read the piece that Professor Hartman wrote, and I feel I have learned a lot more about gamma rays.

I have a question for him though. He said that he hopes the next generation can create detectors for satellites to find out how to use the light from gamma-ray bursts. I was wondering if now scientists have found something beneficial, or thought of some predictions.

Day 3

Written By: Vicky Cao - Jul• 17•13
How the Sloan Digital Sky Survey work.

How the Sloan Digital Sky Survey work.

A New Insight

Written By: Sariaya Phillips - Jul• 17•13

Today I had the opportunity to listen to Nick Woolf and hear his inspiring stories. I learned many new things about him as well and jotted everything down in my notes. Also, I did an SDSS activity with the teachers and learned how to navigate and explore a different aspect on elements and objects in space. Tomorrow I can’t wait to hear from Mr. Hartmann.!


Written By: Jonathan Flores - Jul• 17•13

What a great success in presenting about telescopes through Skype. I was a little worried that Internet connections/lag would come across the presentation. One problem I had was picturing the 6 mirrors. Maybe image examples would of helped me. Over all, what an amazing presentation!

Questions for Dieter Hartmann

Written By: Sydney Ford - Jul• 17•13

We’re Gamma Rays used to detect explosions?
What was the main topic/question that the Gamma Rays scientists asked?
What were the connections between Pulsars and Gamma Rays?
Can we not see GRB because of our limited visibility? Can we see long GRB? Short GRB?
What kind of technology is needed for spectroscopy in the Gamma Ray regime? (Different from infrared and optical)
Where are some of the Gamma Ray Bursts (GRB) located?

Nick Woolf, My Notes

Written By: Sydney Ford - Jul• 17•13

Nick Wolf
Sight is enhanced depending on the location of the mirrors
There are plans for new telescopes in U.S in Hawaii
Telescopes should be above/off the ground to get sharper images
GMT has 7 mirrors that are curved into a bowl-like circle. It is a tricky process to maintain it. Is like the binocular telescope with 2 mirrors.(24m telescope)
Six mirrors around the edge and a big one in the center (GMT)
Largest telescopes in the early 30s were 36in.
There are difficulties with keeping the telescopes cold making it difficult for large telescopes
Residual strain with metal mirrors
Nothing better than glass mirrors at present time
Glass mirrors has limitations
Most challenging project to observe planets nearby stars because of the light of the star
Limited amount of information is given from the light of the star
No progress on chemical life
Dissipative process is the energy flow of life