Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 310

The DOI matches its Crossref record; 60 of the 60 references it cites were found in a registry or an index.

THE SEGUE STELLAR PARAMETER PIPELINE. II. VALIDATION WITH GALACTIC GLOBULAR AND OPEN CLUSTERS

Open access
Lee, Young Sun, Beers, Timothy C., Sivarani, Thirupathi, Johnson, Jennifer A., An, Deokkeun, Wilhelm, Ronald, Allende Prieto, Carlos, Koesterke, Lars, Fiorentin, Paola Re, Bailer-Jones, Coryn A. L., Norris, John E., Yanny, Brian, Rockosi, Constance, Newberg, Heidi J., Cudworth, Kyle M., Pan, Kaike·2008·The Astronomical Journal

Abstract

We validate the accuracy and precision of the current SEGUE (Sloan Extension for Galactic Understanding and Exploration) Stellar Parameter Pipeline (SSPP), which determines stellar atmospheric parameters (effective temperature, surface gravity, and metallicity) and radial velocities (RVs), by comparing these estimates for selected members of three globular clusters (M 13, M 15, and M 2) and two open clusters (NGC 2420 and M 67) to the literature values. Spectroscopic and photometric data obtained during the course of the original Sloan Digital Sky Survey (SDSS-I) and its first extension (SDSS-II/SEGUE) are used to determine atmospheric parameter and RV estimates for stars in these clusters. Based on the scatter in the metallicities derived for the members of each cluster, we quantify the typical uncertainty of the SSPP values, σ ([Fe/H]) = 0.13 dex for stars in the range of −0.3 ⩽ g − r ⩽ 1.3 and 2.0 ⩽ log g ⩽ 5.0, at least over the metallicity interval spanned by the clusters studied (−2.3 ⩽ [Fe/H] ⩽ 0). The surface gravities and effective temperatures derived by the SSPP are also compared with those estimated from the comparison of color–magnitude diagrams with stellar evolution models; we find satisfactory agreement (σ( T eff )< 200 K and σ(log g ) ⩽ 0.4 dex).

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1088/0004-6256/136/5/2050

Cites

60 of 60 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 60 references

Cited by

See all 310

Metadata

Authors
Lee, Y. S., Beers, T. C., Sivarani, T., Johnson, J. A., An, D., Wilhelm, R., Allende Prieto, C., Koesterke, L., Fiorentin, P. R., Bailer-Jones, C. A. L., Norris, J. E., Yanny, B., Rockosi, C., Newberg, H. J., Cudworth, K. M., & Pan, K.
Venue
The Astronomical Journal
Published
2008-10-13
Volume
136
Issue
5
Pages
2050-2069
ISSN
  • 0004-6256 (ISSN-L)
  • 1538-3881
OpenAlex
W2045861476
Cited by
310
References
60
FWCI
13.17
Type
journal article
Language
en
Open access
bronze

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: THE SEGUE STELLAR PARAMETER PIPELINE. II. VALIDATION WITH GALACTIC GLOBULAR AND OPEN CLUSTERS. https://app.cochat.ai/papers/10.1088/0004-6256/136/5/2050
The paper
Lee, Y. S., Beers, T. C., Sivarani, T., Johnson, J. A., An, D., Wilhelm, R., Allende Prieto, C., Koesterke, L., Fiorentin, P. R., Bailer-Jones, C. A. L., Norris, J. E., Yanny, B., Rockosi, C., Newberg, H. J., Cudworth, K. M., & Pan, K. (2008). THE SEGUE STELLAR PARAMETER PIPELINE. II. VALIDATION WITH GALACTIC GLOBULAR AND OPEN CLUSTERS. The Astronomical Journal. https://doi.org/10.1088/0004-6256/136/5/2050

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.