RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk
RZ Piscium (RZ Psc) is well known in the variable star field because of its numerous irregular optical dips in the past 5 decades, but the nature of the system is heavily debated in the literature. We present multiyear infrared monitoring data from Spitzer and WISE to track the activities of the inn...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ad04d9 |
| _version_ | 1797404125873307648 |
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| author | Kate Y. L. Su Grant M. Kennedy G. H. Rieke A. Meredith Hughes Yu-Chia Lin Jamar Kittling Alan P. Jackson Ramya M. Anche Hauyu Baobab Liu |
| author_facet | Kate Y. L. Su Grant M. Kennedy G. H. Rieke A. Meredith Hughes Yu-Chia Lin Jamar Kittling Alan P. Jackson Ramya M. Anche Hauyu Baobab Liu |
| author_sort | Kate Y. L. Su |
| collection | DOAJ |
| description | RZ Piscium (RZ Psc) is well known in the variable star field because of its numerous irregular optical dips in the past 5 decades, but the nature of the system is heavily debated in the literature. We present multiyear infrared monitoring data from Spitzer and WISE to track the activities of the inner debris production, revealing stochastic infrared variability as short as weekly timescales that is consistent with destroying a 90 km sized asteroid every year. ALMA 1.3 mm data combined with spectral energy distribution modeling show that the disk is compact (∼0.1–13 au radially) and lacks cold gas. The disk is found to be highly inclined and has a significant vertical scale height. These observations confirm that RZ Psc hosts a close to edge-on, highly perturbed debris disk possibly due to migration of recently formed giant planets that might be triggered by the low-mass companion RZ Psc B if the planets formed well beyond the snowlines. |
| first_indexed | 2024-03-09T02:50:28Z |
| format | Article |
| id | doaj.art-8baeaea2775345ec9446269700496668 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-09T02:50:28Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-8baeaea2775345ec94462697004966682023-12-05T13:24:00ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195914310.3847/1538-4357/ad04d9RZ Piscium Hosts a Compact and Highly Perturbed Debris DiskKate Y. L. Su0https://orcid.org/0000-0002-3532-5580Grant M. Kennedy1https://orcid.org/0000-0001-6831-7547G. H. Rieke2https://orcid.org/0000-0003-2303-6519A. Meredith Hughes3https://orcid.org/0000-0002-4803-6200Yu-Chia Lin4https://orcid.org/0000-0002-1511-310XJamar Kittling5Alan P. Jackson6https://orcid.org/0000-0003-4393-9520Ramya M. Anche7https://orcid.org/0000-0002-4989-6253Hauyu Baobab Liu8https://orcid.org/0000-0003-2300-2626Steward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; ksu@as.arizona.eduDepartment of Physics, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UKSteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; ksu@as.arizona.edu; Lunar and Planetary Laboratory, The University of Arizona , 1629 East University Boulevard, Tucson, AZ 85721-0065, USAAstronomy Department and Van Vleck Observatory, Wesleyan University , 96 Foss Hill Drive, Middletown, CT 06459, USASteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; ksu@as.arizona.edu; Department of Physics, University of Arizona , Tucson, AZ 85721, USAAstronomy Department and Van Vleck Observatory, Wesleyan University , 96 Foss Hill Drive, Middletown, CT 06459, USASchool of Earth and Space Exploration, Arizona State University , 550 East Tyler Mall, Tempe, AZ 85287, USA; Department of Physics, Astronomy and Geosciences, Towson University , Maryland, 8000 York Road, Towson, MD 21252, USASteward Observatory, University of Arizona , 933 North Cherry Avenue, Tucson, AZ 85721-0065, USA ; ksu@as.arizona.edu3 Physics Department, National Sun Yat-Sen University , No. 70, Lien-Hai Road, Kaohsiung City 80424, Taiwan, Republic of China; Center of Astronomy and Gravitation, National Taiwan Normal University , Taipei 116, Taiwan, Republic of ChinaRZ Piscium (RZ Psc) is well known in the variable star field because of its numerous irregular optical dips in the past 5 decades, but the nature of the system is heavily debated in the literature. We present multiyear infrared monitoring data from Spitzer and WISE to track the activities of the inner debris production, revealing stochastic infrared variability as short as weekly timescales that is consistent with destroying a 90 km sized asteroid every year. ALMA 1.3 mm data combined with spectral energy distribution modeling show that the disk is compact (∼0.1–13 au radially) and lacks cold gas. The disk is found to be highly inclined and has a significant vertical scale height. These observations confirm that RZ Psc hosts a close to edge-on, highly perturbed debris disk possibly due to migration of recently formed giant planets that might be triggered by the low-mass companion RZ Psc B if the planets formed well beyond the snowlines.https://doi.org/10.3847/1538-4357/ad04d9Circumstellar matterDebris disksInfrared excessExtrasolar rocky planetsExoplanet migration |
| spellingShingle | Kate Y. L. Su Grant M. Kennedy G. H. Rieke A. Meredith Hughes Yu-Chia Lin Jamar Kittling Alan P. Jackson Ramya M. Anche Hauyu Baobab Liu RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk The Astrophysical Journal Circumstellar matter Debris disks Infrared excess Extrasolar rocky planets Exoplanet migration |
| title | RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk |
| title_full | RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk |
| title_fullStr | RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk |
| title_full_unstemmed | RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk |
| title_short | RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk |
| title_sort | rz piscium hosts a compact and highly perturbed debris disk |
| topic | Circumstellar matter Debris disks Infrared excess Extrasolar rocky planets Exoplanet migration |
| url | https://doi.org/10.3847/1538-4357/ad04d9 |
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