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Parameters from Spectroscopic Fitting

For most objects, SDSS processing pipelines find estimates of the physical parameters most likely to have produced the observed spectrum. Many different estimates are available - the right one to use will depend on the problem at hand.

Click on the name of each set of estimates for more information on the pipeline that produced those estimates (opens in a new window). Most objects will have either estimated stellar parameters or galaxy properties, but a few objects will have both.

Stellar Parameters

SEGUE Stellar Parameters Pipeline (SSPP)  (new window)

No data found for this object

APOGEE Stellar Parameters and Chemical Abundances Pipeline (ASPCAP)  (new window)

Galaxy Property Estimates  (new window)

Model Fitting: Portsmouth group (Spectro-photometric matching)  (new window)

Star Forming Model

No data found for this object

Passive Model

No data found for this object

Stellar Kinematics: Portsmouth group (Emission Line Fluxes)  (new window)

No data found for this object

Wisconsin group (Principal Component Analysis)  (new window)

Assuming model spectra from Bruzal & Charlot (2003)

No data found for this object

Assuming model spectra from Maraston & Strömback (2011)

No data found for this object

Granada group (Flexible Stellar Population Synthesis)  (new window)

Early Galaxy Formation,Dust Attenuation

No data found for this object

Early Galaxy Formation,No Dust Attenuation

No data found for this object

Wide Range of Formation Times, Dust Attenuation

No data found for this object

Wide Range of Formation Times,No Dust Attenuation

No data found for this object