Statistical properties of galactic δ scuti stars

Revisited

S. W. Chang, P. Protopapas, D. W. Kim, Yong-Ik Byun

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We present statistical characteristics of 1578 δ Scuti stars including nearby field stars and cluster member stars within the Milky Way. We obtained 46% of these stars (718 stars) from work by Rodríguez and collected the remaining 54% of stars (860 stars) from other literature. We updated the entries with the latest information of sky coordinates, color, rotational velocity, spectral type, period, amplitude, and binarity. The majority of our sample is well characterized in terms of typical period range (0.02-0.25 days), pulsation amplitudes (<0.5 mag), and spectral types (A-F type). Given this list of δ Scuti stars, we examined relations between their physical properties (i.e., periods, amplitudes, spectral types, and rotational velocities) for field stars and cluster members, and confirmed that the correlations of properties are not significantly different from those reported in Rodríguez's work. All the δ Scuti stars are cross-matched with several X-ray and UV catalogs, resulting in 27 X-ray and 41 UV-only counterparts. These counterparts are interesting targets for further study because of their uniqueness in showing δ Scuti-type variability and X-ray/UV emission at the same time. The compiled catalog can be accessed through the Web interface http://stardb.yonsei.ac.kr/DeltaScuti.

Original languageEnglish
Article number132
JournalAstronomical Journal
Volume145
Issue number5
DOIs
Publication statusPublished - 2013 May 1

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stars
star distribution
physical property
catalogs
x rays
uniqueness
entry
lists
sky
physical properties
color

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Chang, S. W. ; Protopapas, P. ; Kim, D. W. ; Byun, Yong-Ik. / Statistical properties of galactic δ scuti stars : Revisited. In: Astronomical Journal. 2013 ; Vol. 145, No. 5.
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Statistical properties of galactic δ scuti stars : Revisited. / Chang, S. W.; Protopapas, P.; Kim, D. W.; Byun, Yong-Ik.

In: Astronomical Journal, Vol. 145, No. 5, 132, 01.05.2013.

Research output: Contribution to journalArticle

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