Erosion, Landfill & Politics in Interstellar Space

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Erosion, Landfill & Politics in Interstellar Space

Erosion, Landfill & Politics

At 9 P.M., I hope you have some idea of: What we understand about how stars like the Sun form, and how we came to this understanding

What we understand

What we also understand, but donÝt always admit

Even though itÝs now right before our eyes

How we came to our ýmodernţ understanding

Ideas 1900-2000

Ideas: 1900-1948

Dust, Not Holes

Time Showed Barnard was Right!

Ideas: 1900-1948

Stellar Evolution from Spectroscopy: The Hertzprung-Russell Diagram

Ideas: 1900-1948

ýThe Possibility of Star Formationţ

BokÝs Globules

1948-49

What Happened around 1950?

Suddenly, by 1952 ýStar Formationţ was a Respectable Term & Subject!

Tutorial: Velocity from Spectroscopy

Tutorial: Velocity from Spectroscopy

BokÝs Dream: Radio Spectral-line Observations of Interstellar Clouds

BokÝs Dream: Radio Spectral-line Observations of Interstellar Clouds

And someone had to pay for it...

1957 H I Spectroscopy

Ideas: 1952-1975

Star Formation c. 1953

Star Formation in 1953

HH Objects

ýGiantţ Herbig-Haro Flows: PV Ceph

Velocity as a "Fourth" Dimension

ýIntegrated Intensity Mapţ

Ideas: 1975-1985

The Story, c. 1990

Molecular Clouds "Created" by Supernovae

Star Formation Triggered by A Galaxy Collision

The Star-Forming Interstellar Medium

Ideas: 1985-now

Do Magnetic Fields Explain Everything?

Erosion

PPT Slide

PPT Slide

My Ideas

The Spectral Correlation Function

Strong vs. Weak B-Field

The Superstore Learning More from ýToo Muchţ Data

How the SCF Works

Which one of these is not like the others?

ýGiantţ Herbig-Haro Flows: PV Ceph

A New Proposal: Episodic ejections from precessing or wobbling moving source

PV Ceph

How much of a molecular cloud complex was ýmovedţ to its present location by an outflow?

.

Astronomy Politics and Funding

Astronomy Politics and Funding

NASAÝs Origins Program

Author: Alyssa Goodman

Email: agoodman@cfa.harvard.edu

Home Page: http://cfa-www.harvard.edu/~agoodman

Other information:
Harvard University Science Center Research Lecture Series April 12, 2000

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