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OB Associations

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arxiv astro-ph/9902234 v2 pith:3DC3763U submitted 1999-02-17 astro-ph

classification astro-ph
keywords associationscontentdatahipparcosaccuracyadvancedallowastrometric
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Since the previous (1990) edition of this meeting enormous progress in the field of OB associations has been made. Data from X-ray satellites have greatly advanced the study of the low-mass stellar content of associations, while astrometric data from the Hipparcos satellite allow for a characterization of the higher-mass content of associations with unprecedented accuracy. We review recent work on the OB associations located within 1.5 kpc from the Sun, discuss the Hipparcos results at length, and point out directions for future research.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A three-dimensional, multi-wavelength view and time-dependent analysis of the Milky Way's local ionized gas

    astro-ph.GA 2025-06 conditional novelty 6.0 of 10

    The local 1 kpc^2 star formation rate that best reproduces the Milky Way's warm ionized gas structure is about 370 solar masses per Myr per kpc^2, roughly four times lower than earlier estimates.

  2. Kinematic study of the association Cyg OB3 with Gaia DR2

    astro-ph.SR 2019-08 conditional novelty 4.0 of 10

    Gaia DR2 data for 41 stars place Cyg OB3 at about 2 kpc, give a coherent mean peculiar velocity of about 22 km/s, and support Cyg X-1 membership.

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