Size and Shape of Jupiter Trojan (2207) Antenor from Stellar Occultations
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866912502408806400 |
|---|---|
| author | Ferreira, Feliphe S. Camargo, Julio I. B. Morgado, Bruno E. Peixoto, Viviane Desmars, Josselin Braga-Ribas, Felipe Gomes-Junior, Altair Sicardy, Bruno Ortiz, Jose Vieira-Martins, R. Pereira, C. Liberato, Luana Assafin, Marcelo Kilic, Yucel Boufleur, Rodrigo Rommel, Flavia Benedetti-Rossi, Gustavo Banda-Huarca, Martin Marchis, Franck Tanga, Paolo Blanc, Benoit Bondoux, Erick Burnett, Alexandra Calavia-Belloc, S. Canales-Moreno, O. Carlson, Norman Conjat, Matthieu George, Tony Gonçalves, R. Iglesias-Marzoa, R. Krannich, Grego Lafuente-Aznar, D. Maley, Paul Marco, Jordi Schnabel, C. Shand, Delwin Wagner, Kevin |
| author_facet | Ferreira, Feliphe S. Camargo, Julio I. B. Morgado, Bruno E. Peixoto, Viviane Desmars, Josselin Braga-Ribas, Felipe Gomes-Junior, Altair Sicardy, Bruno Ortiz, Jose Vieira-Martins, R. Pereira, C. Liberato, Luana Assafin, Marcelo Kilic, Yucel Boufleur, Rodrigo Rommel, Flavia Benedetti-Rossi, Gustavo Banda-Huarca, Martin Marchis, Franck Tanga, Paolo Blanc, Benoit Bondoux, Erick Burnett, Alexandra Calavia-Belloc, S. Canales-Moreno, O. Carlson, Norman Conjat, Matthieu George, Tony Gonçalves, R. Iglesias-Marzoa, R. Krannich, Grego Lafuente-Aznar, D. Maley, Paul Marco, Jordi Schnabel, C. Shand, Delwin Wagner, Kevin |
| contents | Librating around the Lagrange L5, the Jupiter's Trojan (2207) Antenor has been observed in recent years and its rotational light curve suggests it to be a very likely binary asteroid candidate. From stellar occultations, we report results from three events from Europe and North America to estimate the 2D apparent size and shape of Jupiter's Trojan (2207) Antenor. For the best-fitted ellipse in the sky-plane, we determined that Antenor has a 2D apparent equatorial radius of 54.30 +/- 0.99 km at the moment of the occultations, with an apparent oblateness of 0.144 +/- 0.051. We highlight the positive detection from 2021 June 12, which shows an intriguing feature that can be interpreted as a very large topographical feature (of about 11 km) of the body or that can provide further evidence that this object is, in fact, a close or contact binary. We also determine astrometric positions, with uncertainties of a few milliarcseconds (mas) for our preferred solutions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_19638 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Size and Shape of Jupiter Trojan (2207) Antenor from Stellar Occultations Ferreira, Feliphe S. Camargo, Julio I. B. Morgado, Bruno E. Peixoto, Viviane Desmars, Josselin Braga-Ribas, Felipe Gomes-Junior, Altair Sicardy, Bruno Ortiz, Jose Vieira-Martins, R. Pereira, C. Liberato, Luana Assafin, Marcelo Kilic, Yucel Boufleur, Rodrigo Rommel, Flavia Benedetti-Rossi, Gustavo Banda-Huarca, Martin Marchis, Franck Tanga, Paolo Blanc, Benoit Bondoux, Erick Burnett, Alexandra Calavia-Belloc, S. Canales-Moreno, O. Carlson, Norman Conjat, Matthieu George, Tony Gonçalves, R. Iglesias-Marzoa, R. Krannich, Grego Lafuente-Aznar, D. Maley, Paul Marco, Jordi Schnabel, C. Shand, Delwin Wagner, Kevin Earth and Planetary Astrophysics Librating around the Lagrange L5, the Jupiter's Trojan (2207) Antenor has been observed in recent years and its rotational light curve suggests it to be a very likely binary asteroid candidate. From stellar occultations, we report results from three events from Europe and North America to estimate the 2D apparent size and shape of Jupiter's Trojan (2207) Antenor. For the best-fitted ellipse in the sky-plane, we determined that Antenor has a 2D apparent equatorial radius of 54.30 +/- 0.99 km at the moment of the occultations, with an apparent oblateness of 0.144 +/- 0.051. We highlight the positive detection from 2021 June 12, which shows an intriguing feature that can be interpreted as a very large topographical feature (of about 11 km) of the body or that can provide further evidence that this object is, in fact, a close or contact binary. We also determine astrometric positions, with uncertainties of a few milliarcseconds (mas) for our preferred solutions. |
| title | Size and Shape of Jupiter Trojan (2207) Antenor from Stellar Occultations |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2507.19638 |