Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi

A. Evans; C. E. Woodward; L. A. Helton; R. D. Gehrz; D. K. Lynch; R. J. Rudy; R. W. Russell; T. Kerr; M. F. Bode; M. J. Darnley; S. P S Eyres; T. R. Geballe; T. J. O'Brien; R. J. Davis; Sumner Starrfield; J. U. Ness; J. Drake; J. P. Osborne; K. L. Page; G. Schwarz; J. Krautter

doi:10.1086/519924

Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi

A. Evans, C. E. Woodward, L. A. Helton, R. D. Gehrz, D. K. Lynch, R. J. Rudy, R. W. Russell, T. Kerr, M. F. Bode, M. J. Darnley, S. P S Eyres, T. R. Geballe, T. J. O'Brien, R. J. Davis, Sumner Starrfield, J. U. Ness, J. Drake, J. P. Osborne, K. L. Page, G. SchwarzJ. Krautter

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20 Scopus citations

Abstract

We present Spitzer Space Telescope and complementary ground-based infrared observations of the recurrent nova RS Ophiuchi, obtained over the period 64-111 days after the 2006 eruption. The Spitzer IRS data show a rich emission-line spectrum superimposed on a free-free continuum. The presence of fine-structure and coronal infrared lines lead us to deduce that there are at least two temperatures (1.5 × 10⁵ and 9 ×10⁵ K) in the ejecta/wind environment and that the electron density in the "cooler" region is 2.2 × 10³ cm^-3. The determination of elemental abundances is not straightforward, but on the assumption that the Ne and O fine-structure lines arise in the same volume of the ejecta, the O/Ne ratio is ≳0.6 by number.

Original language	English (US)
Pages (from-to)	L29-L32
Journal	Astrophysical Journal
Volume	663
Issue number	1 II
DOIs	https://doi.org/10.1086/519924
State	Published - Jul 1 2007

Keywords

Binaries: close
Binaries: symbiotic
Infrared: stars
Novae, cataclysmic variables
Stars: individual (RS Ophiuchi)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/519924

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Evans, A., Woodward, C. E., Helton, L. A., Gehrz, R. D., Lynch, D. K., Rudy, R. J., Russell, R. W., Kerr, T., Bode, M. F., Darnley, M. J., Eyres, S. P. S., Geballe, T. R., O'Brien, T. J., Davis, R. J., Starrfield, S., Ness, J. U., Drake, J., Osborne, J. P., Page, K. L., ... Krautter, J. (2007). Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi. Astrophysical Journal, 663(1 II), L29-L32. https://doi.org/10.1086/519924

Evans, A, Woodward, CE, Helton, LA, Gehrz, RD, Lynch, DK, Rudy, RJ, Russell, RW, Kerr, T, Bode, MF, Darnley, MJ, Eyres, SPS, Geballe, TR, O'Brien, TJ, Davis, RJ, Starrfield, S, Ness, JU, Drake, J, Osborne, JP, Page, KL, Schwarz, G & Krautter, J 2007, 'Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi', Astrophysical Journal, vol. 663, no. 1 II, pp. L29-L32. https://doi.org/10.1086/519924

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title = "Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi",

abstract = "We present Spitzer Space Telescope and complementary ground-based infrared observations of the recurrent nova RS Ophiuchi, obtained over the period 64-111 days after the 2006 eruption. The Spitzer IRS data show a rich emission-line spectrum superimposed on a free-free continuum. The presence of fine-structure and coronal infrared lines lead us to deduce that there are at least two temperatures (1.5 × 105 and 9 ×105 K) in the ejecta/wind environment and that the electron density in the {"}cooler{"} region is 2.2 × 103 cm-3. The determination of elemental abundances is not straightforward, but on the assumption that the Ne and O fine-structure lines arise in the same volume of the ejecta, the O/Ne ratio is ≳0.6 by number.",

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author = "A. Evans and Woodward, {C. E.} and Helton, {L. A.} and Gehrz, {R. D.} and Lynch, {D. K.} and Rudy, {R. J.} and Russell, {R. W.} and T. Kerr and Bode, {M. F.} and Darnley, {M. J.} and Eyres, {S. P S} and Geballe, {T. R.} and O'Brien, {T. J.} and Davis, {R. J.} and Sumner Starrfield and Ness, {J. U.} and J. Drake and Osborne, {J. P.} and Page, {K. L.} and G. Schwarz and J. Krautter",

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T1 - Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi

AU - Evans, A.

AU - Woodward, C. E.

AU - Helton, L. A.

AU - Gehrz, R. D.

AU - Lynch, D. K.

AU - Rudy, R. J.

AU - Russell, R. W.

AU - Kerr, T.

AU - Bode, M. F.

AU - Darnley, M. J.

AU - Eyres, S. P S

AU - Geballe, T. R.

AU - O'Brien, T. J.

AU - Davis, R. J.

AU - Starrfield, Sumner

AU - Ness, J. U.

AU - Drake, J.

AU - Osborne, J. P.

AU - Page, K. L.

AU - Schwarz, G.

AU - Krautter, J.

PY - 2007/7/1

Y1 - 2007/7/1

N2 - We present Spitzer Space Telescope and complementary ground-based infrared observations of the recurrent nova RS Ophiuchi, obtained over the period 64-111 days after the 2006 eruption. The Spitzer IRS data show a rich emission-line spectrum superimposed on a free-free continuum. The presence of fine-structure and coronal infrared lines lead us to deduce that there are at least two temperatures (1.5 × 105 and 9 ×105 K) in the ejecta/wind environment and that the electron density in the "cooler" region is 2.2 × 103 cm-3. The determination of elemental abundances is not straightforward, but on the assumption that the Ne and O fine-structure lines arise in the same volume of the ejecta, the O/Ne ratio is ≳0.6 by number.

AB - We present Spitzer Space Telescope and complementary ground-based infrared observations of the recurrent nova RS Ophiuchi, obtained over the period 64-111 days after the 2006 eruption. The Spitzer IRS data show a rich emission-line spectrum superimposed on a free-free continuum. The presence of fine-structure and coronal infrared lines lead us to deduce that there are at least two temperatures (1.5 × 105 and 9 ×105 K) in the ejecta/wind environment and that the electron density in the "cooler" region is 2.2 × 103 cm-3. The determination of elemental abundances is not straightforward, but on the assumption that the Ne and O fine-structure lines arise in the same volume of the ejecta, the O/Ne ratio is ≳0.6 by number.

KW - Binaries: close

KW - Binaries: symbiotic

KW - Infrared: stars

KW - Novae, cataclysmic variables

KW - Stars: individual (RS Ophiuchi)

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U2 - 10.1086/519924

DO - 10.1086/519924

M3 - Article

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SN - 0004-637X

VL - 663

SP - L29-L32

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 II

ER -

Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi

Abstract

Keywords

ASJC Scopus subject areas

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