Silicate dust in the environment of RS Ophiuchi following the 2006 eruption

Abstract

We present further Spitzer Space Telescope observations of the recurrent nova RS Ophiuchi, obtained over the period 208-430 days after the 2006 eruption. The later Spitzer IRS data show that the line emission and free-free continuum emission reported earlier is declining, revealing incontrovertible evidence for the presence of silicate emission features at 9.7 and 18microns. We conclude that the silicate dust survives the hard radiation impulse and shock blast wave from the eruption. The existence of the extant dust may have significant implications for understanding the propagation of shocks through the red giant wind and likely wind geometry.

arXiv comment12 pages, 4 figures, accepted for publication in ApJ (Letters)

References in corpus (13)

• The Spitzer Space Telescope Mission
• The Infrared Spectrograph on the Spitzer Space Telescope
• Self-similarity and scaling behavior of IR emission from radiatively heated dust: I. Theory
• An empirical formula for the mass-loss rates of dust-enshrouded red supergiants and oxygen-rich Asymptotic Giant Branch stars
• X-Ray Emitting Blast Wave from the Recurrent Nova RS Ophiuchi
• An asymmetric shock wave in the 2006 outburst of the recurrent nova RS Ophiuchi
• Swift observations of the 2006 outburst of the recurrent nova RS Ophiuchi: I. Early X-ray emission from the shocked ejecta and red giant wind
• Circumbinary disks and cataclysmic variable evolution
• The SSS phase of RS Ophiuchi observed with Chandra and XMM-Newton I.: Data and preliminary Modeling
• Hubble Space Telescope Imaging of the Expanding Nebular Remnant of the Recurrent Nova RS Ophiuchi (2006)
• A near-infrared shock wave in the 2006 outburst of recurrent nova RS Ophiuchi
• No Expanding Fireball: Resolving the Recurrent Nova RS Ophiuchi with Infrared Interferometry
• Spitzer and ground-based infrared observations of the 2006 eruption of RS Ophiuchi

Cited by in corpus (20)

• Swift X-Ray Observations of Classical Novae. II. The Super Soft Source sample
• The Super-Soft X-ray Phase of Nova RS Ophiuchi 2006
• Time-resolved hadronic particle acceleration in the recurrent Nova RS Ophiuchi
• Modelling the circumstellar medium in RS Ophiuchi and its link to Type Ia supernovae
• The Outbursts of Classical and Recurrent Novae
• Near-Infrared H and K band studies of the 2006 outburst of the recurrent nova RS Ophiuchi
• Swift observations of the 2006 outburst of the recurrent nova RS Ophiuchi: III. X-ray spectral modelling
• Milliarcsecond N-Band Observations of the Nova RS Ophiuchi: First Science with the Keck Interferometer Nuller
• Disc instabilities and nova eruptions in symbiotic systems: RS Ophiuchi and Z Andromedae
• Novalike Cataclysmic Variables in the Infrared
• High Resolution X-ray Spectra of RS Ophiuchi (2006 and 2021): Revealing the cause of SSS variability
• Gas phase SiO in the circumstellar environment of the recurrent nova T Coronae Borealis
• A WISE view of novae. I. The data
• Changes in the red giant and dusty environment of the recurrent nova RS Ophiuchi following the 2006 eruption
• Infrared spectroscopy of the 2019 eruption of the recurrent nova V3890 Sgr: separation into equatorial and polar winds revealed
• Transient and asymmetric dust structures in the TeV-bright nova RS Oph revealed by spectropolarimetry
• The recurrent nova V3890~Sgr: a near-infrared and optical study of the red giant component and its environment
• Rise and fall of silicate dust in RS Ophiuchi following the 2006 eruption
• Nova Eruptions with Infrared Interferometric Observations
• Stringent limits on ${}^{28}$SiO maser emission from the recurrent nova T Coronae Borealis