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Where can I find a database of galactic spectra?

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I was wondering where spectra of galaxies at various redshifts are to be found. I'm looking for ones that can be used to find the recessional velocity of the galaxy and eventually the Hubble Constant. Here's one I found:

galaxy redshift spectra hubble-constant

share|improve this question

edited 36 mins ago

HDE 226868♦

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Pedro de OliveiraPedro de Oliveira

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add a comment | 

2

$begingroup$

I was wondering where spectra of galaxies at various redshifts are to be found. I'm looking for ones that can be used to find the recessional velocity of the galaxy and eventually the Hubble Constant. Here's one I found:

galaxy redshift spectra hubble-constant

share|improve this question

edited 36 mins ago

HDE 226868♦

20.9k33 gold badges7171 silver badges133133 bronze badges

asked 9 hours ago

Pedro de OliveiraPedro de Oliveira

1322 bronze badges

New contributor

Pedro de Oliveira is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

add a comment | 

$begingroup$

I was wondering where spectra of galaxies at various redshifts are to be found. I'm looking for ones that can be used to find the recessional velocity of the galaxy and eventually the Hubble Constant. Here's one I found:

galaxy redshift spectra hubble-constant

share|improve this question

edited 36 mins ago

HDE 226868♦

20.9k33 gold badges7171 silver badges133133 bronze badges

asked 9 hours ago

Pedro de OliveiraPedro de Oliveira

1322 bronze badges

New contributor

Pedro de Oliveira is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

share|improve this question

edited 36 mins ago

HDE 226868♦

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asked 9 hours ago

Pedro de OliveiraPedro de Oliveira

1322 bronze badges

New contributor

Pedro de Oliveira is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 36 mins ago

HDE 226868♦

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asked 9 hours ago

Pedro de OliveiraPedro de Oliveira

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New contributor

Pedro de Oliveira is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 36 mins ago

HDE 226868♦

20.9k33 gold badges7171 silver badges133133 bronze badges

edited 36 mins ago

HDE 226868♦

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asked 9 hours ago

Pedro de OliveiraPedro de Oliveira

1322 bronze badges

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Check out our Code of Conduct.

asked 9 hours ago

Pedro de OliveiraPedro de Oliveira

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The Sloan Digital Sky Survey Data Release 15 contains over 4 million spectra of both galactic and extra-galactic origin from the multi-fiber spectrographs. Of these spectra, 0.7 million came from the original spectrographs during the SDSS-I/II Legacy Survey and the remainder from the upgraded spectrographs as part of the BOSS survey during SDSS-III (see SDSS surveys details pages). These data went through an automatic pipeline that determined the redshift automatically (where the data quality was good enough) and the details of the process are given here.

The spectroscopy data are available through the links to the SkyServer Quicklook which lets you visualize and download the spectra and through the SkyServer Spectroscopic Query Form which lets you search for galaxies. (Try setting the 'Parameters to return' to 'typical' under the 'Spectroscopy' section' and setting the 'Classification=GALAXY' under the 'Spectroscopy constraints' section to only return objects that have been classified as galaxies).

share|improve this answer

edited 2 hours ago

answered 8 hours ago

astrosnapperastrosnapper

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$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The four million spectra include 1.5 million from BOSS and all the spectra from the original surveys with the original spectrographs, as well as other surveys like SEGUE.
  $endgroup$
  – Peter Erwin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Thanks, good points, I've updated the text
  $endgroup$
  – astrosnapper
  2 hours ago
  

  
  
  
  

add a comment | 

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5

$begingroup$

The Sloan Digital Sky Survey Data Release 15 contains over 4 million spectra of both galactic and extra-galactic origin from the multi-fiber spectrographs. Of these spectra, 0.7 million came from the original spectrographs during the SDSS-I/II Legacy Survey and the remainder from the upgraded spectrographs as part of the BOSS survey during SDSS-III (see SDSS surveys details pages). These data went through an automatic pipeline that determined the redshift automatically (where the data quality was good enough) and the details of the process are given here.

The spectroscopy data are available through the links to the SkyServer Quicklook which lets you visualize and download the spectra and through the SkyServer Spectroscopic Query Form which lets you search for galaxies. (Try setting the 'Parameters to return' to 'typical' under the 'Spectroscopy' section' and setting the 'Classification=GALAXY' under the 'Spectroscopy constraints' section to only return objects that have been classified as galaxies).

share|improve this answer

edited 2 hours ago

answered 8 hours ago

astrosnapperastrosnapper

3,67466 silver badges2626 bronze badges

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The four million spectra include 1.5 million from BOSS and all the spectra from the original surveys with the original spectrographs, as well as other surveys like SEGUE.
  $endgroup$
  – Peter Erwin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Thanks, good points, I've updated the text
  $endgroup$
  – astrosnapper
  2 hours ago
  

  
  
  
  

add a comment | 

5

$begingroup$

The Sloan Digital Sky Survey Data Release 15 contains over 4 million spectra of both galactic and extra-galactic origin from the multi-fiber spectrographs. Of these spectra, 0.7 million came from the original spectrographs during the SDSS-I/II Legacy Survey and the remainder from the upgraded spectrographs as part of the BOSS survey during SDSS-III (see SDSS surveys details pages). These data went through an automatic pipeline that determined the redshift automatically (where the data quality was good enough) and the details of the process are given here.

The spectroscopy data are available through the links to the SkyServer Quicklook which lets you visualize and download the spectra and through the SkyServer Spectroscopic Query Form which lets you search for galaxies. (Try setting the 'Parameters to return' to 'typical' under the 'Spectroscopy' section' and setting the 'Classification=GALAXY' under the 'Spectroscopy constraints' section to only return objects that have been classified as galaxies).

share|improve this answer

edited 2 hours ago

answered 8 hours ago

astrosnapperastrosnapper

3,67466 silver badges2626 bronze badges

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  The four million spectra include 1.5 million from BOSS and all the spectra from the original surveys with the original spectrographs, as well as other surveys like SEGUE.
  $endgroup$
  – Peter Erwin
  3 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  Thanks, good points, I've updated the text
  $endgroup$
  – astrosnapper
  2 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

The Sloan Digital Sky Survey Data Release 15 contains over 4 million spectra of both galactic and extra-galactic origin from the multi-fiber spectrographs. Of these spectra, 0.7 million came from the original spectrographs during the SDSS-I/II Legacy Survey and the remainder from the upgraded spectrographs as part of the BOSS survey during SDSS-III (see SDSS surveys details pages). These data went through an automatic pipeline that determined the redshift automatically (where the data quality was good enough) and the details of the process are given here.

The spectroscopy data are available through the links to the SkyServer Quicklook which lets you visualize and download the spectra and through the SkyServer Spectroscopic Query Form which lets you search for galaxies. (Try setting the 'Parameters to return' to 'typical' under the 'Spectroscopy' section' and setting the 'Classification=GALAXY' under the 'Spectroscopy constraints' section to only return objects that have been classified as galaxies).

share|improve this answer

edited 2 hours ago

answered 8 hours ago

astrosnapperastrosnapper

3,67466 silver badges2626 bronze badges

$endgroup$

share|improve this answer

edited 2 hours ago

answered 8 hours ago

astrosnapperastrosnapper

3,67466 silver badges2626 bronze badges

answered 8 hours ago

astrosnapperastrosnapper

3,67466 silver badges2626 bronze badges

answered 8 hours ago

astrosnapperastrosnapper

3,67466 silver badges2626 bronze badges