Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 462

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

THE SLOAN DIGITAL SKY SURVEY-II SUPERNOVA SURVEY: TECHNICAL SUMMARY

Open access
Frieman, Joshua A., Bassett, Bruce, Becker, Andrew, Choi, Changsu, Cinabro, David, DeJongh, Fritz, Depoy, Darren L., Dilday, Ben, Doi, Mamoru, Garnavich, Peter M., Hogan, Craig J., Holtzman, Jon, Im, Myungshin, Jha, Saurabh, Kessler, Richard, Konishi, Kohki, Lampeitl, Hubert, Marriner, John, Marshall, Jennifer L., McGinnis, David, Miknaitis, Gajus, Nichol, Robert C., Prieto, Jose Luis, Riess, Adam G., Richmond, Michael W., Romani, Roger, Sako, Masao, Schneider, Donald P., Smith, Mathew, Takanashi, Naohiro, Tokita, Kouichi, Heyden, Kurt van der, Yasuda, Naoki, Zheng, Chen, Adelman-McCarthy, Jennifer, Annis, James, Assef, Roberto J., Barentine, John, Bender, Ralf, Blandford, Roger D., Boroski, William N., Bremer, Malcolm, Brewington, Howard, Collins, Chris A., Crotts, Arlin, Dembicky, Jack, Eastman, Jason, Edge, Alastair, Edmondson, Edmond, Elson, Edward, Eyler, Michael E., Filippenko, Alexei V., Foley, Ryan J., Frank, Stephan, Goobar, Ariel, Gueth, Tina, Gunn, James E., Harvanek, Michael, Hopp, Ulrich, Ihara, Yutaka, Ivezić, Želko, Kahn, Steven, Kaplan, Jared, Kent, Stephen, Ketzeback, William, Kleinman, Scott J., Kollatschny, Wolfram, Kron, Richard G, Krzesiński, Jurek, Lamenti, Dennis, Leloudas, Giorgos, Lin, Huan, Long, Daniel C., Lucey, John, Lupton, Robert H., Malanushenko, Elena, Malanushenko, Viktor, McMillan, Russet J., Mendez, Javier, Morgan, Christopher W., Morokuma, Tomoki, Nitta, Atsuko, Ostman, Linda, Pan, Kaike, Rockosi, Constance M., Romer, A. Kathy, Ruiz-Lapuente, Pilar, Saurage, Gabrelle, Schlesinger, Katie, Snedden, Stephanie A., Sollerman, Jesper, Stoughton, Chris, Stritzinger, Maximilian, SubbaRao, Mark, Tucker, Douglas, Vaisanen, Petri, Watson, Linda C., Watters, Shannon, Wheeler, J. Craig, Yanny, Brian, York, Donald·2008·The Astronomical Journal

Abstract

The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band ( ugriz ) imaging over an area of 300 sq. deg. The survey region is a stripe 2.5° wide centered on the celestial equator in the Southern Galactic Cap that has been imaged numerous times in earlier years, enabling construction of a deep reference image for the discovery of new objects. Supernova imaging observations are being acquired between September 1 and November 30 of 2005–7. During the first two seasons, each region was imaged on average every five nights. Spectroscopic follow-up observations to determine supernova type and redshift are carried out on a large number of telescopes. In its first two three-month seasons, the survey has discovered and measured light curves for 327 spectroscopically confirmed SNe Ia, 30 probable SNe Ia, 14 confirmed SNe Ib/c, 32 confirmed SNe II, plus a large number of photometrically identified SNe Ia, 94 of which have host-galaxy spectra taken so far. This paper provides an overview of the project and briefly describes the observations completed during the first two seasons of operation.

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 · 10.1088/0004-6256/135/1/338

Cites

8 of 8 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 8 references

Cited by

See all 462

Metadata

Authors
Frieman, J. A., Bassett, B., Becker, A., Choi, C., Cinabro, D., DeJongh, F., Depoy, D. L., Dilday, B., Doi, M., Garnavich, P. M., Hogan, C. J., Holtzman, J., Im, M., Jha, S., Kessler, R., Konishi, K., Lampeitl, H., Marriner, J., Marshall, J. L., McGinnis, D., Miknaitis, G., Nichol, R. C., Prieto, J. L., Riess, A. G., Richmond, M. W., Romani, R., Sako, M., Schneider, D. P., Smith, M., Takanashi, N., Tokita, K., Heyden, K. V. D., Yasuda, N., Zheng, C., Adelman-McCarthy, J., Annis, J., Assef, R. J., Barentine, J., Bender, R., Blandford, R. D., Boroski, W. N., Bremer, M., Brewington, H., Collins, C. A., Crotts, A., Dembicky, J., Eastman, J., Edge, A., Edmondson, E., Elson, E., Eyler, M. E., Filippenko, A. V., Foley, R. J., Frank, S., Goobar, A., Gueth, T., Gunn, J. E., Harvanek, M., Hopp, U., Ihara, Y., Ivezić, Ž., Kahn, S., Kaplan, J., Kent, S., Ketzeback, W., Kleinman, S. J., Kollatschny, W., Kron, R. G., Krzesiński, J., Lamenti, D., Leloudas, G., Lin, H., Long, D. C., Lucey, J., Lupton, R. H., Malanushenko, E., Malanushenko, V., McMillan, R. J., Mendez, J., Morgan, C. W., Morokuma, T., Nitta, A., Ostman, L., Pan, K., Rockosi, C. M., Romer, A. K., Ruiz-Lapuente, P., Saurage, G., Schlesinger, K., Snedden, S. A., Sollerman, J., Stoughton, C., Stritzinger, M., SubbaRao, M., Tucker, D., Vaisanen, P., Watson, L. C., Watters, S., Wheeler, J. C., Yanny, B., & York, D.
Venue
The Astronomical Journal
Published
2007-12-12
Volume
135
Issue
1
Pages
338-347
ISSN
  • 0004-6256 (ISSN-L)
  • 1538-3881
OpenAlex
W2128806658
Cited by
462
References
8
FWCI
17.71
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 SLOAN DIGITAL SKY SURVEY-II SUPERNOVA SURVEY: TECHNICAL SUMMARY. https://app.cochat.ai/papers/10.1088/0004-6256/135/1/338
The paper
Frieman, J. A., Bassett, B., Becker, A., Choi, C., Cinabro, D., DeJongh, F., Depoy, D. L., Dilday, B., Doi, M., Garnavich, P. M., Hogan, C. J., Holtzman, J., Im, M., Jha, S., Kessler, R., Konishi, K., Lampeitl, H., Marriner, J., Marshall, J. L., . . . York, D. (2008). THE SLOAN DIGITAL SKY SURVEY-II SUPERNOVA SURVEY: TECHNICAL SUMMARY. The Astronomical Journal. https://doi.org/10.1088/0004-6256/135/1/338

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.