A VLA View of the Flared, Asymmetric Disk around the Class 0 Protostar L1527 IRS
Research output: Contribution to journal › Journal article › Research › peer-review
Documents
- Sheehan_2022_ApJ_934_95
Final published version, 1.53 MB, PDF document
We present high-resolution Karl G. Jansky Very Large Array (VLA) observations of the protostar L1527 IRS at 7 mm, 1.3 cm, and 2 cm wavelengths. We detect the edge-on dust disk at all three wavelengths and find that it is asymmetric, with the southern side of the disk brighter than the northern side. We confirm this asymmetry through analytic modeling and also find that the disk is flared at 7 mm. We test the data against models including gap features in the intensity profile, and though we cannot rule such models out, they do not provide a statistically significant improvement in the quality of fit to the data. From these fits, we can, however, place constraints on allowed properties of any gaps that could be present in the true, underlying intensity profile. The physical nature of the asymmetry is difficult to associate with physical features owing to the edge-on nature of the disk, but it could be related to spiral arms or asymmetries seen in other imaging of more face-on disks.
Original language | English |
---|---|
Article number | 95 |
Journal | Astrophysical Journal |
Volume | 934 |
Issue number | 2 |
Number of pages | 14 |
ISSN | 0004-637X |
DOIs | |
Publication status | Published - 1 Aug 2022 |
- YOUNG STELLAR OBJECTS, STAR-FORMING REGIONS, INNER ENVELOPE, ALMA, EVOLUTION, CONTINUUM, GAS, SUBSTRUCTURES, MOLECULES, MASSES
Research areas
Number of downloads are based on statistics from Google Scholar and www.ku.dk
ID: 315528377