A multiwavelength study of the classical nova V4169 Sagittarii

A. D. Scott; H. W. Duerbeck; A. Evans; A. L. Chen; D. de Martino; R. Hjellming; J. Krautter; D. Laney; Q. A. Parker; J. M C Rawlings; H. Van Winckel

A multiwavelength study of the classical nova V4169 Sagittarii

A. D. Scott, H. W. Duerbeck, A. Evans^*, A. L. Chen, D. de Martino, R. Hjellming, J. Krautter, D. Laney, Q. A. Parker, J. M C Rawlings, H. Van Winckel

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We present multiwavelength observations of V4169 Sgr (Nova Sgr 92 # 2) from 1000 Å to 2 cm for the first year following visual maximum. V4169 Sgr was an ‘Fe n’ type nova, and evolved from P_fe ^oto N0 in the Tololo nova classification scheme. The ultraviolet spectrum was very similar to that of nova PW Vul, and the near infra-red spectrum was dominated by Lyβ pumped OI emission in the early decline. There was significant apparent deceleration of absorption lines before optical maximum. High resolution optical spectroscopy reveal unusual details of the evolution of blue-shifted P Cygni absorptions; we show that these are consistent with the advance of an ionisation front through the absorbing material. The evolution of absorption systems and emission line profiles are consistent with accelerating wind models of nova ejection. We find an extinction of E(B — V) = 0.35 ± 0.05, and a distance of ~ 6.5 kpc. The nova shows significant enrichment of helium and nitrogen relative to solar, but not of carbon or oxygen; however our abundances are probably underestimated.

Original language	English
Pages (from-to)	439-458
Number of pages	20
Journal	Astronomy and Astrophysics Review
Volume	296
Publication status	Published - 1995

Keywords

Cataclysmic variables
Circumstellar matter
IR: stars
Novae
Stars: abundances
Stars: individual: V4169 Sgr
UV: stars

Cite this

@article{46ed21f891e54bd185632a1cec337061,

title = "A multiwavelength study of the classical nova V4169 Sagittarii",

abstract = "We present multiwavelength observations of V4169 Sgr (Nova Sgr 92 # 2) from 1000 {\AA} to 2 cm for the first year following visual maximum. V4169 Sgr was an {\textquoteleft}Fe n{\textquoteright} type nova, and evolved from Pfe oto N0 in the Tololo nova classification scheme. The ultraviolet spectrum was very similar to that of nova PW Vul, and the near infra-red spectrum was dominated by Lyβ pumped OI emission in the early decline. There was significant apparent deceleration of absorption lines before optical maximum. High resolution optical spectroscopy reveal unusual details of the evolution of blue-shifted P Cygni absorptions; we show that these are consistent with the advance of an ionisation front through the absorbing material. The evolution of absorption systems and emission line profiles are consistent with accelerating wind models of nova ejection. We find an extinction of E(B — V) = 0.35 ± 0.05, and a distance of ~ 6.5 kpc. The nova shows significant enrichment of helium and nitrogen relative to solar, but not of carbon or oxygen; however our abundances are probably underestimated.",

keywords = "Cataclysmic variables, Circumstellar matter, IR: stars, Novae, Stars: abundances, Stars: individual: V4169 Sgr, UV: stars",

author = "Scott, {A. D.} and Duerbeck, {H. W.} and A. Evans and Chen, {A. L.} and {de Martino}, D. and R. Hjellming and J. Krautter and D. Laney and Parker, {Q. A.} and Rawlings, {J. M C} and {Van Winckel}, H.",

year = "1995",

language = "English",

volume = "296",

pages = "439--458",

journal = "Astronomy and Astrophysics Review",

issn = "0935-4956",

publisher = "Springer, Springer Nature",

}

TY - JOUR

T1 - A multiwavelength study of the classical nova V4169 Sagittarii

AU - Scott, A. D.

AU - Duerbeck, H. W.

AU - Evans, A.

AU - Chen, A. L.

AU - de Martino, D.

AU - Hjellming, R.

AU - Krautter, J.

AU - Laney, D.

AU - Parker, Q. A.

AU - Rawlings, J. M C

AU - Van Winckel, H.

PY - 1995

Y1 - 1995

N2 - We present multiwavelength observations of V4169 Sgr (Nova Sgr 92 # 2) from 1000 Å to 2 cm for the first year following visual maximum. V4169 Sgr was an ‘Fe n’ type nova, and evolved from Pfe oto N0 in the Tololo nova classification scheme. The ultraviolet spectrum was very similar to that of nova PW Vul, and the near infra-red spectrum was dominated by Lyβ pumped OI emission in the early decline. There was significant apparent deceleration of absorption lines before optical maximum. High resolution optical spectroscopy reveal unusual details of the evolution of blue-shifted P Cygni absorptions; we show that these are consistent with the advance of an ionisation front through the absorbing material. The evolution of absorption systems and emission line profiles are consistent with accelerating wind models of nova ejection. We find an extinction of E(B — V) = 0.35 ± 0.05, and a distance of ~ 6.5 kpc. The nova shows significant enrichment of helium and nitrogen relative to solar, but not of carbon or oxygen; however our abundances are probably underestimated.

AB - We present multiwavelength observations of V4169 Sgr (Nova Sgr 92 # 2) from 1000 Å to 2 cm for the first year following visual maximum. V4169 Sgr was an ‘Fe n’ type nova, and evolved from Pfe oto N0 in the Tololo nova classification scheme. The ultraviolet spectrum was very similar to that of nova PW Vul, and the near infra-red spectrum was dominated by Lyβ pumped OI emission in the early decline. There was significant apparent deceleration of absorption lines before optical maximum. High resolution optical spectroscopy reveal unusual details of the evolution of blue-shifted P Cygni absorptions; we show that these are consistent with the advance of an ionisation front through the absorbing material. The evolution of absorption systems and emission line profiles are consistent with accelerating wind models of nova ejection. We find an extinction of E(B — V) = 0.35 ± 0.05, and a distance of ~ 6.5 kpc. The nova shows significant enrichment of helium and nitrogen relative to solar, but not of carbon or oxygen; however our abundances are probably underestimated.

KW - Cataclysmic variables

KW - Circumstellar matter

KW - IR: stars

KW - Novae

KW - Stars: abundances

KW - Stars: individual: V4169 Sgr

KW - UV: stars

UR - http://www.scopus.com/inward/record.url?scp=0442300152&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0442300152

VL - 296

SP - 439

EP - 458

JO - Astronomy and Astrophysics Review

JF - Astronomy and Astrophysics Review

SN - 0935-4956

ER -

A multiwavelength study of the classical nova V4169 Sagittarii

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Keywords

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