CaltechAUTHORS
Published December 10, 2018 | Version Published + Submitted
Journal Article Open

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

Creators

  • 1. ROR icon California Institute of Technology
  • 2. ROR icon University of California, Berkeley
  • 3. ROR icon Jet Propulsion Lab
  • 4. ROR icon Michigan State University
  • 5. ROR icon Northwestern University
  • 6. ROR icon Columbia University

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.

Additional Information

© 2018 The American Astronomical Society. Received 2018 August 27; revised 2018 October 15; accepted 2018 October 15; published 2018 December 5. The authors gratefully acknowledge the support of the Caltech Optical Observatories and the Scialog workshop and grant. G.H. acknowledges the support of the National Science Foundation Career Award AST-1654815. K.J.S. is supported by NASA through the Astrophysics Theory Program (NNX17AG28G). B.D.M. is supported by the National Science Foundation (AST-1615084) and NASA (HST-AR-15041.001-A, GG008699). Laura Chomiuk is supported by a Cotrell Scholar Award of the Research Corporation and NSF-AST 1751874. The authors acknowledge with thanks the variable star observations from the AAVSO International Database contributed by observers worldwide and used in this research.

Attached Files

Published - Rosenthal_2018_ApJ_869_7.pdf

Submitted - 1810.07298.pdf

Files

1810.07298.pdf

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Additional details

Identifiers

Eprint ID
91505
Resolver ID
CaltechAUTHORS:20181205-104500293

Related works

Describes
https://arxiv.org/abs/1810.07298 (URL)

Funding

Caltech Optical Observatories
NSF
AST-1654815
NASA
NNX17AG28G
NSF
AST-1615084
NASA Hubble Fellowship
HST-AR-15041.001-A
NASA
GG008699
Research Corporation
NSF
AST-1751874

Dates

Created
2018-12-05
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Astronomy Department