Resolving the binary components of the outbursting protostar HBC 494 with ALMA

0583821 - ASÚ 2024 RIV US eng J - Journal Article
Nogueira, P.H. … Total 18 authors
Resolving the binary components of the outbursting protostar HBC 494 with ALMA.
Monthly Notices of the Royal Astronomical Society. Roč. 523, Issue 4 (2023), s. 4970-4991. ISSN 0035-8711. E-ISSN 1365-2966
Research Infrastructure: EU-ARC.CZ III - 90259
Keywords : accretion discs * protoplanetary discs * protostars
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 4.8, year: 2022
Method of publishing: Limited access
https://doi.org/10.1093/mnras/stad1614

We present follow-up observations at ~0′′.03, resolving the system into two components: HBC 494 N (primary) and HBC 494 S (secondary). No circumbinary disc was detected. Both discs are resolved with a projected separation of ~0′′.18 (75 au). Their projected dimensions are 84 ± 1.8 × 66.9 ± 1.5 mas for HBC 494 N and 64.6 ± 2.5 × 46.0 ± 1.9 mas for HBC 494 S.
Permanent Link: https://hdl.handle.net/11104/0351819