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Active galaxies Review

So following on from the post on December 1st this is a quick review of the active galaxies lecture from the Space Telescope Science Institute.

This lecture, presented by Dr Mitchell Revalski, is really interesting, looking at how supermassive black holes, despite their small size compared to the galaxy they reside in.

Energy from these can push away surrounding gas, and heat this up which reduces star formation as gas needs to cool to form stars.

so scales are pretty huge:

First lets look at what a light year is

Citation : spaceplace.nasa.gov

For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it! 

1 pc = 1 parsec = 3.26 light years

Supermassive black hole < 1pc

Bulge = 1 = 3 kpc (kilo parsec)

disk 30 kpc

circumgalactic area 50kpc

So even though these black holes are very small, they have a big influence on what surrounds them.

We know this is happening thanks to the research that led to the 2020 Nobel prize.

Well worth watching and the link is above.

Next lecture 19th Jan – The Darkest Secrets of the Universe Speaker: Raja Guhathakurta (UC Santa Cruz)

#astronomy,#science,#space,#telescope,#scsci,#talk, #solarsystem,#galaxy,#blackhole,#supermassive,#stars, #gravity,#light,#matter,#atoms,#emissions,#aabsorption, #spectrum,#gamma,#xray,#visible,#invisible,#parsec, #lightyear,#distance,#galactic,#bulge,#spacetelescope, #groundtelescope,#astronomers,#education,#public

Astrobiology course 5

So moving on in from the previous post the next lecture in the Astrobiology course is on Space Missions in the Search for Life

#astrobiology,#course,#amity,#university,#theopenuniversity,#space,#science,#astronomy,#biology,#biochemistry,#missions,#nasa,#esa,#lecture,#talk,#presentation,

Active Galaxies

Shaping Galaxies with Supermassive Black Hole Winds

Tuesday 1st December

So following on from Septembers lecture, the Space telescope science institute present their next lecture.

With details here

You can find more upcoming (monthly) lectures below.

http://www.stsci.edu/public-lectures

#video,#astronomy,#space,#science,#stsci

Astronify

Hearing The Light: How Sonification Deepens our Understanding of the Cosmos and Makes Astronomy More Accessible

Tuesday 10th November

Location: Online Attendance Only Time: 8:00 PM – 9:30 PM

So following on from Septembers lecture, the Space telescope science institute present their next lecture.

You can find more upcoming (monthly) lectures below.

http://www.stsci.edu/public-lectures

Link to last months video lecture and a review of the Nancy Grace Roman Telescope lecture

#video,#astronomy,#space,#science,#stsci

Enigmatic fast radio burst pinned on magnetised dead star

This is an interesting development, astronomers have found something they have been spending years searching for. Not sure where these stars appear on the The Hertzsprung-Russell diagram.

https://www.bbc.co.uk/news/science-environment-54815687

The paper for this can be found on Physics World. Reported on IOPScience on 4th November 2020.

Currently discussing on a OU Science forum.

#bbc,#news,#science,#fsb,#space,#astronomy,#physics,#astrophysics.

The search for life on Mars

One of the advantages of being a higher education student or in my case alumni is you get to join groups. I have just been watching a live webcast on the experiments that are being used onboard Mars rovers to look for possible indicators that Mars once supported life.

Exploring the Habitability of Mars with the Curiosity and Rosalind Franklin rovers and Orbital Missions

I am not sure if there is a recording of this going up, but the link to a some more information is here.

I am currently undertaking Particle Physics but there is also a really interesting series of lecutures on AstroBiology I want to check out too.

#OpenUniversity,#OU,#space,#science,#mars,#curiosity,#rover,#talks,#education,#chemistry,#biochemistry,#biology, #orgnaic,#OrganicMolecules,#NASA,#JPL,Rovers, #RosalindFranklin.#OrbitalMissions

Meteorites Talk

Just been watching a really interesting talk by Dr Tim Gregory – Meteorites from 8th October 2020 – YouTube.

This was really interesting and accessible people with both a science and non science background,

Briefly touched on how the solar system was formed, protoplanetary disks looked at the two different types of asteroids, how they are formed, what makes them up internally, and finished off with a quick look at some of the organic molecules that have been found and how these could have found their way to earth.

Well worth a look, the video can be found on Youtube.

Thank you to the OU Science Club for pointing me to this talk.

#science,#astronomy,#chemistry,#space,#asteroids,#meteorites,#cosmochemistry,#geology,#rocks,#solarsystem,#planet,#formation

OSIRIS-REx mission

Yesterday, there was an update to the NASA OSIRIS-REx mission to collect and return a sample of dust from an asteroid.

This post was prompted by a BBC Science news report. The NASA mission page can also be found here.

NASA OSIRIS-REx mission page

Mission should return to earth in 2023.

Hopefully the sample collection went as planned.

Update 21/10/2020

Mission on the way back, sample collections went successfully, should return largest sample from a foreign body since Apollo.

Follow @OSIRISREx for updates.

Discussion

Feel free to start a thread on Science Forums to discuss further.

#nasa,#space,#mission,#asteroid,#sample,#return,#OSIRIS-REx

The Nancy Grace Roman Space Telescope

6th October

So following on from Septembers lecture, the Space telescope science institute present their next lecture.

With details here

You can find more upcoming (monthly) lectures below.

http://www.stsci.edu/public-lectures

#video,#astronomy,#space,#science,#stsci