M105 - Elliptical Galaxy - Deep Sky Videos

We're discussing two bits of research here - Meghan is discussing the an epic halo of hydrogen and Mike is explaining an apparent lack of dark matter. M105 is also known as NGC 3379.

The NED website discussed here is at http://ned.ipac.caltech.edu/

Info on Mike Merrifield's paper at http://ned.ipac.caltech.edu/cgi-bin/nph-ex_refcode?refcode=2004MNRAS.353L..13M

Some of the work Meghan Gray discusses is at http://adsabs.harvard.edu/abs/1985ApJ...288L..33S and http://adsabs.harvard.edu/abs/1983ApJ...273L...1S

Extra images supplied by Fred Espenak: http://astropixels.com
and the ING http://www.ing.iac.es/PR/science/messier.html

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Videos by Brady Haran

Additional video editing by Stephen Slater

Category:

Science & Technology

Tags:

• M15
• halo
• dark matter
• hydrogen
• elliptical galaxy
• astronomy
• astronomers
• messier
• space
• galaxies
• nebula
• nebulae
• stars
• universe
• deepsky
• deepskyvideos
• deep sky
• telescope
• NGC
• 3379
• NGC3379

[Squatchmo11]

Man I don't get why your videos don't get more views. This is better than any of those BS popumentary astronomy programs on the air nowadays. SCIENCE

[DeepSkyVideos]

@Squatchmo11 we're new and not very famous... but tell your friends and we'll get there! ;)

[flowerofsilver]

I should have become an astronomer.

[DeepSkyVideos]

@flowerofsilver it's never too late

[xenolard]

I love your videos and your team. Always look forward to the next one. Keep it up guys + girls

[DeepSkyVideos]

@xenolard we will

[Slug99]

Fantastic video series! Keep it going.

[DeepSkyVideos]

@Hellsslave666 I hope so... we still have 107 Messier videos to do!!!

[queso858]

@casanoval33t it's not a secret anymore... :)

[MVPSSY]

master piece, I saw and I heard lots....ur videos r far the best. I love ur technical terms, easy for everyone! ty very much. keep up the great job!

[Duedain]

"A Dearth of Dark Matter" - A Darth Vader Biography

[casanoval33t]

i secretly have a huge crush on meghan gray

[MrJepcats]

Fantastic video.

[Eeyo]

This is great, I didn't know about a bunch of elliptical galaxies not having dark matter, I just figured it would be one of those "it's everywhere" things. I think I need to look more into this, knowing why something is not there and the implications can be just as important as knowing it is there.

PS Dark Matter has a lot of good evidence and there's a lot of good, scientific work being done to directly observe it. Wikipedia it, it's not as mysterious as it used to be.