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Photometric Properties of Jupiter Trojans detected by the Dark Energy Survey
Earth and Planetary Astrophysics · Submitted 19 Nov 2022
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Both the L4 and L5 clouds consistently show such a color-size correlation over an absolute magnitude range $11 < H < 18$.
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
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The abstract, sentence by sentence
The Jupiter Trojans are a large group of asteroids that are co-orbiting with Jupiter near its L4 and L5 Lagrange points. The study of Jupiter Trojans is crucial for testing different models of planet formation that are directly related to our understanding of solar system evolution. In this work, we select known Jupiter Trojans listed by the Minor Planet Center (MPC) from the full six years dataset (Y6) of the Dark Energy Survey (DES) to analyze their photometric properties. The DES data allow us to study Jupiter Trojans with a fainter magnitude limit than previous studies in a homogeneous survey with $griz$ band measurements. We extract a final catalog of 573 unique Jupiter Trojans. Our sample include 547 asteroids belonging to L5. This is one of the largest analyzed samples for this group. By comparing with the data reported by other surveys we found that the color distribution of L5 Trojans is similar to that of L4 Trojans. We find that L5 Trojans' $g - i$ and $g - r$ colors become less red with fainter absolute magnitudes, a trend also seen in L4 Trojans. Both the L4 and L5 clouds consistently show such a color-size correlation over an absolute magnitude range $11 < H < 18$. We also use DES colors to perform taxonomic classifications. C and P-type asteroids outnumber D-type asteroids in the L5 Trojans DES sample, which have diameters in the 5 - 20 km range. This is consistent with the color-size correlation.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The Jupiter Trojans are a large group of asteroids that are co-orbiting with Jupiter near its L4 and L5 Lagrange points. | background 1.00 | 0.04 | 0.02 | asserted 1.00 |
| s1 | The study of Jupiter Trojans is crucial for testing different models of planet formation that are directly related to our understanding of solar system evolution. | background 1.00 | 0.05 | 0.02 | asserted 1.00 |
| s2 | In this work, we select known Jupiter Trojans listed by the Minor Planet Center (MPC) from the full six years dataset (Y6) of the Dark Energy Survey (DES) to analyze their photometric properties. | method 0.88 | 0.92 | 0.02 | asserted 0.98 |
| s3 | The DES data allow us to study Jupiter Trojans with a fainter magnitude limit than previous studies in a homogeneous survey with $griz$ band measurements. | contribution 0.45 | 0.47 | 0.03 | asserted 0.97 |
| s4 | We extract a final catalog of 573 unique Jupiter Trojans. | result 0.81 | 0.96 | 0.06 | asserted 1.00 |
| s5 | Our sample include 547 asteroids belonging to L5. | result 0.91 | 0.87 | 0.05 | asserted 1.00 |
| s6 | This is one of the largest analyzed samples for this group. | interpretation 0.48 | 0.40 | 0.05 | asserted 1.00 |
| s7 | By comparing with the data reported by other surveys we found that the color distribution of L5 Trojans is similar to that of L4 Trojans. | result 1.00 | 0.89 | 0.16 | asserted 1.00 |
| s8 | We find that L5 Trojans' $g - i$ and $g - r$ colors become less red with fainter absolute magnitudes, a trend also seen in L4 Trojans. | result 1.00 | 0.96 | 0.30 | asserted 1.00 |
| s9 | Both the L4 and L5 clouds consistently show such a color-size correlation over an absolute magnitude range $11 < H < 18$. | result 1.00 | 0.89 | 0.34 | asserted 1.00 |
| s10 | We also use DES colors to perform taxonomic classifications. | method 0.60 | 0.96 | 0.04 | asserted 0.99 |
| s11 | C and P-type asteroids outnumber D-type asteroids in the L5 Trojans DES sample, which have diameters in the 5 - 20 km range. | result 1.00 | 0.90 | 0.09 | asserted 1.00 |
| s12 | This is consistent with the color-size correlation. | interpretation 0.98 | 0.54 | 0.08 | hedged possibility 0.84 |
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The paper
Original abstract
The Jupiter Trojans are a large group of asteroids that are co-orbiting with Jupiter near its L4 and L5 Lagrange points. The study of Jupiter Trojans is crucial for testing different models of planet formation that are directly related to our understanding of solar system evolution. In this work, we select known Jupiter Trojans listed by the Minor Planet Center (MPC) from the full six years dataset (Y6) of the Dark Energy Survey (DES) to analyze their photometric properties. The DES data allow us to study Jupiter Trojans with a fainter magnitude limit than previous studies in a homogeneous survey with $griz$ band measurements. We extract a final catalog of 573 unique Jupiter Trojans. Our sample include 547 asteroids belonging to L5. This is one of the largest analyzed samples for this group. By comparing with the data reported by other surveys we found that the color distribution of L5 Trojans is similar to that of L4 Trojans. We find that L5 Trojans' $g - i$ and $g - r$ colors become less red with fainter absolute magnitudes, a trend also seen in L4 Trojans. Both the L4 and L5 clouds consistently show such a color-size correlation over an absolute magnitude range $11 < H < 18$. We also use DES colors to perform taxonomic classifications. C and P-type asteroids outnumber D-type asteroids in the L5 Trojans DES sample, which have diameters in the 5 - 20 km range. This is consistent with the color-size correlation.
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