Early Planet Formation in Embedded Disks (eDisk) X: Compact Disks, Extended Infall, and a Fossil Outburst in the Class I Oph IRS43 Binary
| Autor: | Narayanan, Suchitra, Williams, Jonathan P., Tobin, John J., Jorgensen, Jes K., Ohashi, Nagayoshi, Lin, Zhe-Yu Daniel, Hoff, Merel L. R. van't, Li, Zhi-Yun, Plunkett, Adele L., Looney, Leslie W., Takakuwa, Shigehisa, Yen, Hsi-Wei, Aso, Yusuke, Flores, Christian, Lee, Jeong-Eun, Lai, Shih-Ping, Kwon, Woojin, de Gregorio-Monsalvo, Itziar, Sharma, Rajeeb, Lee, Chang Won |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We present the first results from the Early Planet Formation in Embedded Disks (eDisk) ALMA Large Program toward Oph IRS43, a binary system of solar mass protostars. The 1.3 mm dust continuum observations resolve a compact disk, ~6au radius, around the northern component and show that the disk around the southern component is even smaller, <~3 au. CO, 13CO, and C18O maps reveal a large cavity in a low mass envelope that shows kinematic signatures of rotation and infall extending out to ~ 2000au. An expanding CO bubble centered on the extrapolated location of the source ~130 years ago suggests a recent outburst. Despite the small size of the disks, the overall picture is of a remarkably large and dynamically active region. Comment: Paper 10 of the ALMA eDisk Large Program. Accepted for publication in ApJ |
| Databáze: | arXiv |
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