Smoothed Temporal Variance Spectrum: weak line profile variations and NRP diagnostic

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Smoothed Temporal Variance Spectrum: weak line profile variations and NRP diagnostic. / Kholtygin, A. F.; Sudnik, N. P.

In: Monthly Notices of the Royal Astronomical Society, Vol. 458, No. 2, 2016, p. 1604-1617.

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Kholtygin, A. F. ; Sudnik, N. P. / Smoothed Temporal Variance Spectrum: weak line profile variations and NRP diagnostic. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 458, No. 2. pp. 1604-1617.

BibTeX

@article{a649be5a894e45c893ec09659a1d3dad,

title = "Smoothed Temporal Variance Spectrum: weak line profile variations and NRP diagnostic",

abstract = "We describe the version of the Temporal Variance Spectrum (TVS, Fullerton, Gies & Bolton) method with pre-smoothed line profile (smoothed Temporal Variance Spectrum, smTVS). This method introduced by Kholtygin et al. can be used to detect the ultra weak variations of the line profile even for very noisy stellar spectra. We also describe how to estimate the mode of the non-radial pulsations (NRP) using the TVS and smTVS with different time spans. The influence of the rotational modulation of the line profile on the TVS is considered. The analysis of the contribution of NRP and rotational modulation in the global TVS is studied.",

keywords = "stars, spectra, line profile, varaibility, methods",

author = "Kholtygin, {A. F.} and Sudnik, {N. P.}",

year = "2016",

doi = "10.1093/mnras/stw412",

language = "English",

volume = "458",

pages = "1604--1617",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Wiley-Blackwell",

number = "2",

}

RIS

TY - JOUR

T1 - Smoothed Temporal Variance Spectrum: weak line profile variations and NRP diagnostic

AU - Kholtygin, A. F.

AU - Sudnik, N. P.

PY - 2016

Y1 - 2016

N2 - We describe the version of the Temporal Variance Spectrum (TVS, Fullerton, Gies & Bolton) method with pre-smoothed line profile (smoothed Temporal Variance Spectrum, smTVS). This method introduced by Kholtygin et al. can be used to detect the ultra weak variations of the line profile even for very noisy stellar spectra. We also describe how to estimate the mode of the non-radial pulsations (NRP) using the TVS and smTVS with different time spans. The influence of the rotational modulation of the line profile on the TVS is considered. The analysis of the contribution of NRP and rotational modulation in the global TVS is studied.

AB - We describe the version of the Temporal Variance Spectrum (TVS, Fullerton, Gies & Bolton) method with pre-smoothed line profile (smoothed Temporal Variance Spectrum, smTVS). This method introduced by Kholtygin et al. can be used to detect the ultra weak variations of the line profile even for very noisy stellar spectra. We also describe how to estimate the mode of the non-radial pulsations (NRP) using the TVS and smTVS with different time spans. The influence of the rotational modulation of the line profile on the TVS is considered. The analysis of the contribution of NRP and rotational modulation in the global TVS is studied.

KW - stars

KW - spectra

KW - line profile

KW - varaibility

KW - methods

U2 - 10.1093/mnras/stw412

DO - 10.1093/mnras/stw412

M3 - Article

VL - 458

SP - 1604

EP - 1617

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -

ID: 7570141