Filming the evolution of symbiotic novae with VLBI: the 2021 explosion of RS Oph

M. Giroletti; U. Munari; B. Marcote; T. O'Brien; P. Veres; J. Yang; D. R. A. Williams; P. A. Woudt

doi:10.22323/1.428.0038

Filming the evolution of symbiotic novae with VLBI: the 2021 explosion of RS Oph

M. Giroletti^*
, U. Munari
, B. Marcote
, T. O'Brien
, P. Veres
, J. Yang
, D. R. A. Williams
, P. A. Woudt

^*Corresponding author for this work

Astronomy and Astrophysics Theory Group

Research output: Chapter in Book/Conference proceeding › Conference contribution

Abstract

Fifteen years after its previous outburst, the symbiotic recurrent nova RS Oph exploded again on 2021 Aug 8th, its first outburst during the Fermi era. In symbiotic novae, the material ejected from the surface of the white dwarf (WD) after the thermonuclear runaway drives a strong shock through the dense circumstellar gas produced by the red giant (RG) wind. This nova is a perfect real-time laboratory for studying physical processes as diverse as accretion, thermonuclear explosions, shock dynamics and particle acceleration; in many ways it is like a supernova remnant on fast forward.

The experience of its previous outburst and that of 2010 for V407 (the symbiotic nova that has been extensively observed during the Fermi era), indicates that a large sensitivity and a broad range of baseline lengths are necessary to follow its evolution over a period of several weeks. This would provide unique constraints on major outstanding problems, including the emission mechanisms, the physical processes at work, the presence and location of shock acceleration, the geometry of the system, and the density of the RG wind. We present preliminary results from the EVN+e-MERLIN observations carried out on weeks/months time scales after the August explosion.

Original language	English
Title of host publication	15th European VLBI Network Mini-Symposium and Users' Meeting
Subtitle of host publication	Stars, Stellar Systems
Publisher	Proceedings of Science
Pages	1-7
Number of pages	7
DOIs	https://doi.org/10.22323/1.428.0038
Publication status	Published - 22 Aug 2023
Event	15th European VLBI Network Symposium and Users' Meeting - Cork, Ireland Duration: 11 Jul 2022 → 15 Jul 2022

Conference

Conference	15th European VLBI Network Symposium and Users' Meeting
Abbreviated title	EVN2022
Country/Territory	Ireland
City	Cork
Period	11/07/22 → 15/07/22

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@inproceedings{2a42eb92bd74423d951fe360399c8305,

title = "Filming the evolution of symbiotic novae with VLBI: the 2021 explosion of RS Oph",

abstract = "Fifteen years after its previous outburst, the symbiotic recurrent nova RS Oph exploded again on 2021 Aug 8th, its first outburst during the Fermi era. In symbiotic novae, the material ejected from the surface of the white dwarf (WD) after the thermonuclear runaway drives a strong shock through the dense circumstellar gas produced by the red giant (RG) wind. This nova is a perfect real-time laboratory for studying physical processes as diverse as accretion, thermonuclear explosions, shock dynamics and particle acceleration; in many ways it is like a supernova remnant on fast forward. The experience of its previous outburst and that of 2010 for V407 (the symbiotic nova that has been extensively observed during the Fermi era), indicates that a large sensitivity and a broad range of baseline lengths are necessary to follow its evolution over a period of several weeks. This would provide unique constraints on major outstanding problems, including the emission mechanisms, the physical processes at work, the presence and location of shock acceleration, the geometry of the system, and the density of the RG wind. We present preliminary results from the EVN+e-MERLIN observations carried out on weeks/months time scales after the August explosion.",

author = "M. Giroletti and U. Munari and B. Marcote and T. O'Brien and P. Veres and J. Yang and Williams, \{D. R. A.\} and Woudt, \{P. A.\}",

year = "2023",

month = aug,

day = "22",

doi = "10.22323/1.428.0038",

language = "English",

pages = "1--7",

booktitle = "15th European VLBI Network Mini-Symposium and Users' Meeting",

publisher = "Proceedings of Science",

address = "Italy",

note = "15th European VLBI Network Symposium and Users' Meeting, EVN2022 ; Conference date: 11-07-2022 Through 15-07-2022",

}

Giroletti, M, Munari, U, Marcote, B, O'Brien, T, Veres, P, Yang, J, Williams, DRA & Woudt, PA 2023, Filming the evolution of symbiotic novae with VLBI: the 2021 explosion of RS Oph. in 15th European VLBI Network Mini-Symposium and Users' Meeting: Stars, Stellar Systems. Proceedings of Science, pp. 1-7, 15th European VLBI Network Symposium and Users' Meeting, Cork, Ireland, 11/07/22. https://doi.org/10.22323/1.428.0038

TY - GEN

T1 - Filming the evolution of symbiotic novae with VLBI

T2 - 15th European VLBI Network Symposium and Users' Meeting

AU - Giroletti, M.

AU - Munari, U.

AU - Marcote, B.

AU - O'Brien, T.

AU - Veres, P.

AU - Yang, J.

AU - Williams, D. R. A.

AU - Woudt, P. A.

PY - 2023/8/22

Y1 - 2023/8/22

N2 - Fifteen years after its previous outburst, the symbiotic recurrent nova RS Oph exploded again on 2021 Aug 8th, its first outburst during the Fermi era. In symbiotic novae, the material ejected from the surface of the white dwarf (WD) after the thermonuclear runaway drives a strong shock through the dense circumstellar gas produced by the red giant (RG) wind. This nova is a perfect real-time laboratory for studying physical processes as diverse as accretion, thermonuclear explosions, shock dynamics and particle acceleration; in many ways it is like a supernova remnant on fast forward. The experience of its previous outburst and that of 2010 for V407 (the symbiotic nova that has been extensively observed during the Fermi era), indicates that a large sensitivity and a broad range of baseline lengths are necessary to follow its evolution over a period of several weeks. This would provide unique constraints on major outstanding problems, including the emission mechanisms, the physical processes at work, the presence and location of shock acceleration, the geometry of the system, and the density of the RG wind. We present preliminary results from the EVN+e-MERLIN observations carried out on weeks/months time scales after the August explosion.

AB - Fifteen years after its previous outburst, the symbiotic recurrent nova RS Oph exploded again on 2021 Aug 8th, its first outburst during the Fermi era. In symbiotic novae, the material ejected from the surface of the white dwarf (WD) after the thermonuclear runaway drives a strong shock through the dense circumstellar gas produced by the red giant (RG) wind. This nova is a perfect real-time laboratory for studying physical processes as diverse as accretion, thermonuclear explosions, shock dynamics and particle acceleration; in many ways it is like a supernova remnant on fast forward. The experience of its previous outburst and that of 2010 for V407 (the symbiotic nova that has been extensively observed during the Fermi era), indicates that a large sensitivity and a broad range of baseline lengths are necessary to follow its evolution over a period of several weeks. This would provide unique constraints on major outstanding problems, including the emission mechanisms, the physical processes at work, the presence and location of shock acceleration, the geometry of the system, and the density of the RG wind. We present preliminary results from the EVN+e-MERLIN observations carried out on weeks/months time scales after the August explosion.

U2 - 10.22323/1.428.0038

DO - 10.22323/1.428.0038

M3 - Conference contribution

SP - 1

EP - 7

BT - 15th European VLBI Network Mini-Symposium and Users' Meeting

PB - Proceedings of Science

Y2 - 11 July 2022 through 15 July 2022

ER -

Filming the evolution of symbiotic novae with VLBI: the 2021 explosion of RS Oph

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