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Newbie Seeks Red Shift data



 
 
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  #1  
Old September 2nd 03, 06:48 AM
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Default Newbie Seeks Red Shift data

I've been playing around with Red Shift calculations
and this is probably a simple question for anyone
experienced in the field, but I'm looking for
the best data that gives both the Z shift
and distance measured using a method other than
the hubble constant. In other words I'm looking
for the data that the Hubble constant is calculated
from. I'm only looking for light emitting objects
not quasars or radio sources.

I've looked in Google and a couple of beginning
astromomy books which had a couple of charts but
not the actual measurements. Also they seem to not
give any estimate as to which measurements are the
best or most accurate. If someone could please
point me to a textbook or the original papers containing
the best estimates of stellar or galactic distances
together with the corresponding red shift for those
objects it'd be a big help to me.

Thanks in advance.

bjacoby

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  #2  
Old September 2nd 03, 03:06 PM
[email protected] \(formerly\)
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Default Newbie Seeks Red Shift data

Dear bjacoby:
wrote in message
...
I've been playing around with Red Shift calculations
and this is probably a simple question for anyone
experienced in the field, but I'm looking for
the best data that gives both the Z shift
and distance measured using a method other than
the hubble constant. In other words I'm looking
for the data that the Hubble constant is calculated
from. I'm only looking for light emitting objects
not quasars or radio sources.


You might try this:
http://www.stellar-database.com/

And there may be stuff linked off the FAQ...

David A. Smith


  #3  
Old September 2nd 03, 05:12 PM
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Default Newbie Seeks Red Shift data

\(formerly\)" dlzc1.cox@net wrote:

Thanks! And could you tell me how to access the FAQ for
this group?

----------------------------

You might try this:
http://www.stellar-database.com/


And there may be stuff linked off the FAQ...


David A. Smith


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  #4  
Old September 3rd 03, 04:07 AM
[email protected] \(formerly\)
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Default Newbie Seeks Red Shift data

Dear
wrote in message
...
\(formerly\)" dlzc1.cox@net wrote:

Thanks! And could you tell me how to access the FAQ for
this group?


Dr. Lazio posts a Welcome message every week or so. From it, I find...

QUOTE
This post is an extract of the material found in the sci.astro FAQ.
The FAQ is posted on a regular basis to the newsgroup sci.astro. It
is available via anonymous ftp from
URL:ftp://rtfm.mit.edu/pub/usenet/news.answers/astronomy/faq/, and
it is on the World Wide Web at
URL:http://sciastro.astronomy.net/sci.astro.html and
URL:http://www.faqs.org/faqs/astronomy/faq/. A partial list of
worldwide mirrors (both ftp and Web) is maintained at
URL:http://sciastro.astronomy.net/mirrors.html. (As a general note,
many other FAQs are also available from
URL:ftp://rtfm.mit.edu/pub/usenet/news.answers/.)
END QUOTE

David A. Smith


  #5  
Old September 2nd 03, 06:16 PM
Michael Richmond
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Default Newbie Seeks Red Shift data

... but I'm looking for
the best data that gives both the Z shift
and distance measured using a method other than
the hubble constant. In other words I'm looking
for the data that the Hubble constant is calculated
from. I'm only looking for light emitting objects
not quasars or radio sources.


You can find several references to papers which compare different
methods of distance measurement (other than redshift) at the bottom of
this lectu

http://spiff.rit.edu/classes/phys240...t/distant.html

Look for the papers by the HST Key Project Team.

These discuss only relatively nearby galaxies, which are so close
that their peculiar velocities are a good fraction of their recession
velocities. You'll have to do some searching to find good references
which deal with galaxies more distant than, say, the Coma cluster (of
course, there aren't any really good methods for measuring the
distance to such galaxies).

I suggest you go to the ADS search page:

http://adsabs.harvard.edu/abstract_service.html

and type words like "distance measurement galaxy methods" into the box
labelled "Abstract Words".

Good luck.

Michael Richmond
 




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