A Search for Pulsations in the Optical Light Curve of the Nova ASASSN-17hx

Lee J. Rosenthal, Ken Shen, Gregg Hallinan, Navtej Singh, Laura Chomiuk, Raffaella Margutti, Brian Metzger

Research output: Contribution to journalArticle

Abstract

We present high-speed optical observations of the nova ASASSN-17hx, taken both immediately after its discovery and close to its first peak in brightness, to search for second-minute pulsations associated with the convective eddy turnover timescale within the nova envelope. We do not detect any periodic signal with greater than 3σ significance. Through injection and recovery, we rule out periodic signals of fractional amplitude >7.08 × 10-4 on timescales of 2 s and fractional amplitude >1.06 × 10-3 on timescales of 10 minutes. Additional observations of novae are planned to further constrain ongoing simulations of the launch and propagation of nova winds.

Original languageEnglish (US)
Article number7
JournalAstrophysical Journal
Volume869
Issue number1
DOIs
StatePublished - Dec 10 2018

Keywords

  • novae, cataclysmic variables

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Rosenthal, L. J., Shen, K., Hallinan, G., Singh, N., Chomiuk, L., Margutti, R., & Metzger, B. (2018). A Search for Pulsations in the Optical Light Curve of the Nova ASASSN-17hx. Astrophysical Journal, 869(1), [7]. https://doi.org/10.3847/1538-4357/aae925