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Cited by 678

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Stellar Population Inference with Prospector

Open access
Johnson, Benjamin D., Leja, Joel, Conroy, Charlie, Speagle, Joshua S.·2021·The Astrophysical Journal Supplement Series

Abstract

Inference of the physical properties of stellar populations from observed photometry and spectroscopy is a key goal in the study of galaxy evolution. In recent years, the quality and quantity of the available data have increased, and there have been corresponding efforts to increase the realism of the stellar population models used to interpret these observations. Describing the observed galaxy spectral energy distributions in detail now requires physical models with a large number of highly correlated parameters. These models do not fit easily on grids and necessitate a full exploration of the available parameter space. We present Prospector, a flexible code for inferring stellar population parameters from photometry and spectroscopy spanning UV through IR wavelengths. This code is based on forward modeling the data and Monte Carlo sampling the posterior parameter distribution, enabling complex models and exploration of moderate dimensional parameter spaces. We describe the key ingredients of the code and discuss the general philosophy driving the design of these ingredients. We demonstrate some capabilities of the code on several data sets, including mock and real data.

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Metadata

Authors
Johnson, B. D., Leja, J., Conroy, C., & Speagle, J. S.
Venue
The Astrophysical Journal Supplement Series
Published
2021-05-17
Volume
254
Issue
2
Pages
22
ISSN
  • 0067-0049 (ISSN-L)
  • 1538-4365
OpenAlex
W3107590503
Cited by
678
References
99
FWCI
52.45
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Stellar Population Inference with Prospector. https://app.cochat.ai/papers/10.3847/1538-4365/abef67
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Johnson, B. D., Leja, J., Conroy, C., & Speagle, J. S. (2021). Stellar Population Inference with Prospector. The Astrophysical Journal Supplement Series. https://doi.org/10.3847/1538-4365/abef67

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

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