San Francisco, 9:03 AM
Thu Dec 3
24 posts in the last 24 hours
Tip your editors:
Editor-in-Chief:
Annalee Newitz |
News Editor:
Charlie Jane Anders |
Associate Editor:
Meredith Woerner |
Assistant Editor:
Lauren Davis |
Weekend Editor:
Graeme McMillan |
Contributors:
Joshua Glenn
Stephen Goldmeier |
Ed Grabianowski |
Austin Grossman
Paul Hogan |
Lauren Davis |
Chris Hsiang |
Lynn Peril |
Ann VanderMeer
Alasdair Wilkins |
Graphic Designer:
Stephanie Fox |
Interns:
Tim Barribeau |
Julia Carusillo |
Alex Eichler |
Cyriaque Lamar |
Caitlin Petrakovitz |
Mary Ratliff |
Josh Snyder |
This kind of information makes me want to extend the same type of stellar system kinematics to galactic formation - it's possible that this cluster was at some point a massive accretion disk during the formation of the galaxy and that led to it's remarkable density. That being said, it doesn't explain how that region became so dense, but it would make an analogy to other, already-observed stellar behavior.
Additionally, it would make sense that there would be high volumes of gas near the center of the galaxy, maybe this region just started sucking some of it up as the galaxy was forming. I'd be curious to see how massive the cluster is in comparison to the supermassive black hole at the center of the galaxy and see where the center of mass is between the two.
I know it was meant as light weight chit-chat but I think Henrietta S. Leavitt, if she were alive, would be a little annoyed to hear you both you and Pessimippotamus say this.
As a female pioneer in the male dominated field of astronomy back at the turn of the last century, they tasked her with the tedious review of photographic plates for uncharted variable stars. The historical documentation is not clear but we get the impression she was given this grad student work because she was a women.
This was exactly the kind of astrometrical stuff that would be automated these days by programs described in the article above.
Luckily for her, she dug deeply into it and as a result figured out a rule for measuring distances to distant objects based on the luminosity of variable stars. This rule is now the chief method of determining distance to other galaxies--parallax is insufficient in these cases. Basically she figured out a clever way of really figuring out how big the visible universe actually is.
Had she been allowed to follow up on this discovery she might have beat Hubble to the punch in discovering that the universe was expanding.
11/26/09
11/26/09
07/05/09
i didnt think anyone had directly observed a black hole
07/05/09
06/05/09
Additionally, it would make sense that there would be high volumes of gas near the center of the galaxy, maybe this region just started sucking some of it up as the galaxy was forming. I'd be curious to see how massive the cluster is in comparison to the supermassive black hole at the center of the galaxy and see where the center of mass is between the two.
06/05/09
06/05/09
But I kind of wish I understood some of this completely.
03/13/09
03/13/09
03/13/09
03/13/09
03/13/09
I know it was meant as light weight chit-chat but I think Henrietta S. Leavitt, if she were alive, would be a little annoyed to hear you both you and Pessimippotamus say this.
As a female pioneer in the male dominated field of astronomy back at the turn of the last century, they tasked her with the tedious review of photographic plates for uncharted variable stars. The historical documentation is not clear but we get the impression she was given this grad student work because she was a women.
This was exactly the kind of astrometrical stuff that would be automated these days by programs described in the article above.
Luckily for her, she dug deeply into it and as a result figured out a rule for measuring distances to distant objects based on the luminosity of variable stars. This rule is now the chief method of determining distance to other galaxies--parallax is insufficient in these cases. Basically she figured out a clever way of really figuring out how big the visible universe actually is.
Had she been allowed to follow up on this discovery she might have beat Hubble to the punch in discovering that the universe was expanding.
03/13/09
Ladies rock.