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Vlbi research in the ”Radioastron” project: structure of the H2O maser in NGC 2071 IRS 1

Astro Space Center of PN Lebedev Physics Institute M. A. Shchurov I. E. Valtts Astro Space Center of PN Lebedev Physics Institute N. N. Shakhvorostova +1 lainnya
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Abstrak

Within the Radioastron interferometer scientific program, observational data of the H2O maser at a frequency of 22.2280 GHz in the NGC 2071 nebula were processed. A space radio telescope (SRT — 10 m) and three radio telescopes of the ground network: RT — 32 m (Medicina, Italy), RT — 32 m (Torun, Poland) and RT —64 m (Kalyazin, RF) took part in the observations. A map of the maser spot distribution has been obtained, where there are 13 spatial components with VLSR in the range 4.7 — 20.5 km/s. Correlation is observed on ground-space baselines for the component on VLSR = 14.3 km/s. Based on the visibility function dependence analysis from the baseline projection values, there was proposed a twocomponent model of this component spatial structure with the dimensions of the extended and compact constituent of 4 and 0.06 msec, i.e. 1.56 and 0.023 au, respectively.

Penulis (6)

A

Astro Space Center of PN Lebedev Physics Institute

M

M. A. Shchurov

I

I. E. Valtts

A

Astro Space Center of PN Lebedev Physics Institute

N

N. N. Shakhvorostova

A

Astro Space Center of PN Lebedev Physics Institute

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Institute, A.S.C.o.P.L.P., Shchurov, M.A., Valtts, I.E., Institute, A.S.C.o.P.L.P., Shakhvorostova, N.N., Institute, A.S.C.o.P.L.P. (2021). Vlbi research in the ”Radioastron” project: structure of the H2O maser in NGC 2071 IRS 1. https://doi.org/10.15826/b978-5-7996-3229-8.54

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Informasi Jurnal
Tahun Terbit
2021
Bahasa
en
Sumber Database
CrossRef
DOI
10.15826/b978-5-7996-3229-8.54
Akses
Terbatas